CN205838796U - The Waste Water Treatment of cellulose ethanol - Google Patents

Abstract

The utility model discloses the Waste Water Treatment of a kind of cellulose ethanol, the Waste Water Treatment of described cellulose ethanol includes anaerobic fermentation reaction unit, waste water dephosphorization reaction unit, denitrification reactor and the advanced treatment system that waste water treatment process direction is sequentially connected with, wherein, described anaerobic fermentation reaction unit includes anaerobic fermentation tank body, stripping tube and air supply pipe, it is indoor that described stripping tube is located at described anaerobic reaction, and the upper end of described stripping tube has the lower end of gas outlet and described stripping tube and has air inlet；Described waste water dephosphorization reaction unit includes dephosphorization reacting tank body, aerator and degassing precipitate and separate device, in described dephosphorization reacting tank body, there is dephosphorization reative cell, described dephosphorization reative cell has water inlet and dephosphorization agent adds mouth, and described aerator is located in described dephosphorization reative cell.The Waste Water Treatment of the cellulose ethanol according to this utility model embodiment has the advantages such as simple in construction, low cost, COD and nitrogen phosphorus high treating effect.

Description

The Waste Water Treatment of cellulose ethanol

Technical field

This utility model relates to environmental technology field, and the waste water in particular to a kind of cellulose ethanol processes system System.

Background technology

Traditional ethanol method of manufacturing technology, uses Semen Maydis, Maninot esculenta crantz. (i.e. starch) to pass through the prepared ethanol such as fermentation, waste water COD (organic pollution), generally between 2 thousand to 3 thousand, processes easily.But owing to Semen Maydis, Maninot esculenta crantz. are relatively costly, raw material is limited, This kind of ethanol method of manufacturing technology is prohibited.

To this end, proposing in correlation technique with Caulis et Folium Oryzae, straw (cellulose) is the process that raw material manufactures ethanol, for For Caulis et Folium Oryzae, straw, its internal cellulose is coated with by outer wood element, and first needing will outward by High Temperature High Pressure or sulphuric acid Layer lignin explosion, expose inside cellulose after carry out saccharifying ethanol, the COD of waste water generally between 5 ten thousand to 9 ten thousand, Processing relative difficulty, the structure of sewage treatment equipment is complicated and relatively costly, and COD and nitrogen phosphorus treatment effect are the best, there is improvement Demand.

Utility model content

One of above-mentioned technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, The utility model proposes the Waste Water Treatment of a kind of cellulose ethanol, the Waste Water Treatment of this cellulose ethanol has The advantages such as simple in construction, low cost, COD and nitrogen phosphorus high treating effect.

For achieving the above object, according to the utility model proposes the Waste Water Treatment of a kind of cellulose ethanol, described The Waste Water Treatment of cellulose ethanol includes anaerobic fermentation reaction unit, the waste water that waste water treatment process direction is sequentially connected with Dephosphorization reaction unit, denitrification reactor and advanced treatment system, wherein, described anaerobic fermentation reaction unit includes anaerobic fermentation tank Body, stripping tube and air supply pipe, have anaerobic reaction room in described anaerobic fermentation tank body, described anaerobic reaction room has waste water and enters Mouthful, outlet and air vent, it is indoor that described stripping tube is located at described anaerobic reaction, the upper end of described stripping tube have gas outlet and The lower end of described stripping tube has air inlet, and described air supply pipe is connected with the air inlet of described stripping tube, for described air stripping In pipe, supply is for the gas of air stripping；Described waste water dephosphorization reaction unit includes that dephosphorization reacting tank body, aerator and degassing are heavy Shallow lake separator, has dephosphorization reative cell in described dephosphorization reacting tank body, described dephosphorization reative cell has water inlet and dephosphorization agent adds Adding mouth, described aerator is located in described dephosphorization reative cell, and described degassing precipitate and separate device is located in described dephosphorization reative cell And be positioned at above described aerator, it is used for separating gas and water and mud.

The Waste Water Treatment of the cellulose ethanol according to this utility model embodiment have simple in construction, low cost, The advantages such as COD and nitrogen phosphorus high treating effect.

It addition, can also have the most attached according to the Waste Water Treatment of the cellulose ethanol of this utility model embodiment The technical characteristic added:

According to an embodiment of the present utility model, the lower end of described stripping tube adjacent to described anaerobic reaction room bottom and The upper end of described stripping tube extends to the top of described anaerobic reaction room, and described outlet is located at the top of described anaerobic reaction room And higher than the upper end of described stripping tube.

According to an embodiment of the present utility model, the upper surface of described stripping tube is opened wide to form described gas outlet, institute The lower surface stating stripping tube is opened wide to form described air inlet.

According to an embodiment of the present utility model, described stripping tube include the straight length that vertically extends and with institute Stating the segmental arc that the upper end of straight length is connected, the angle between opening direction and the vertically downward direction of described gas outlet is more than Equal to zero degree and less than 180 degree.

According to an embodiment of the present utility model, described segmental arc is inverted U-shaped, and the opening direction of described gas outlet is vertical Downwards.

According to an embodiment of the present utility model, described stripping tube is multiple and interval is arranged in horizontal plane.

According to an embodiment of the present utility model, described anaerobic fermentation reaction unit also includes: precipitate and separate device, described It is indoor and be positioned at above described stripping tube that precipitate and separate device is located at described anaerobic reaction, described precipitate and separate utensil have with described go out Separator outlet and described outlet that the mouth of a river is connected are connected with the water inlet of described waste water dephosphorization reaction unit.

According to an embodiment of the present utility model, described precipitate and separate device includes: casing, is formed de-in described casing Gas precipitation chamber, the bottom in described degassing precipitation chamber has a sludge outlet, the cross-sectional area of the bottom in described degassing precipitation chamber along from Upper downwardly direction is gradually reduced；Dividing plate, described dividing plate is located at the top in described degassing precipitation chamber, and described dividing plate is by described degassing The upper part in precipitation chamber is divided into degassing district and settling zone, and the bottom in described degassing district connects to give up with the bottom of described settling zone Water overflows to from described anaerobic reaction room flow in described settling zone in described degassing district and then from the bottom in described degassing district；Heavy Shallow lake swash plate, described precipitation inclined plate is located in described settling zone；Downflow weir, in described downflow weir is located at described settling zone and described overflow Stream weir forms the overflow launder with described separator outlet.

According to an embodiment of the present utility model, limit the upper edge of the box portion in described degassing district with described dividing plate Less than the upper edge of described dividing plate and limit the upper edge of box portion of described settling zone with described dividing plate.

According to an embodiment of the present utility model, described casing is cuboid, the first longitudinal side of the bottom of described casing The lower end of wall extends downward beyond the lower end of the second longitudinal side wall of the bottom of described casing, and the lower end of described first longitudinal side wall with The lower end of described second longitudinal side wall is the most overlapping.

According to an embodiment of the present utility model, described anaerobic fermentation reaction unit also includes: precipitate and separate device, described Precipitate and separate device is located at the external and described outlet of described anaerobic fermentation tank by described precipitate and separate device and described waste water dephosphorization Reaction unit is connected, and described precipitate and separate device includes: casing, forms degassing precipitation chamber, described degassing precipitation chamber in described casing Having import, separator outlet and sludge outlet, described import connects with described outlet, described separator outlet and institute Stating waste water dephosphorization reaction unit to be connected, the bottom in described degassing precipitation chamber is formed as cross-sectional area along direction from the top down gradually At least one conical cavity reduced, described sludge outlet is formed at the bottom of described conical cavity；Precipitation inclined plate, described precipitation inclined plate It is located at described degassing precipitation intracavity；Downflow weir, described downflow weir is formed in being located at described degassing precipitation intracavity and described downflow weir There is the overflow launder connected with described separator outlet.

According to an embodiment of the present utility model, described anaerobic fermentation reaction unit also includes: sinker, described energy dissipating Device is connected between the outlet of described anaerobic reaction room and the import in described degassing precipitation chamber.

According to an embodiment of the present utility model, described anaerobic fermentation reaction unit also includes: being used for will be from described dirt The mud that mud outlet is discharged returns to the mud return line that described anaerobic reaction is indoor, and one end of described mud return line is with described Anaerobic reaction room connects, and described sludge outlet is connected with described mud return line by mud discharge pipe, described mud return line It is provided with sludge reflux pump.

According to an embodiment of the present utility model, described anaerobic fermentation reaction unit also includes: water sealed tank, described anaerobism The top of fermentation tank is provided with safe QI KOU, and described safe QI KOU is connected with described water sealed tank.

According to an embodiment of the present utility model, described aerator has spaced multiple aeration head or aeration Pipe.

According to an embodiment of the present utility model, described waste water dephosphorization reaction unit also includes: multiple guide shells, each The top and bottom of described guide shell are the most unlimited, and multiple described aeration heads or aeration tube are respectively from the lower end of multiple described guide shells Stretch into multiple described guide shell.

According to an embodiment of the present utility model, waste water dephosphorization reaction unit also includes: be located at described dephosphorization reative cell In and be positioned at the water-locator below described aerator, described water-locator is connected with described water inlet.

According to an embodiment of the present utility model, described water-locator has multiple water distributions that interval is arranged and Open Side Down Mouthful.

According to an embodiment of the present utility model, described dephosphorization reative cell has and is positioned at described dephosphorization reacting tank body bottom Discharge gate.

According to an embodiment of the present utility model, waste water dephosphorization reaction unit also includes: cyclone, described eddy flow utensil Cyclone inlets, mud mouth and cyclone outlet, described cyclone inlets is had to connect with described discharge gate, described cyclone outlet It is connected with described dephosphorization reative cell by return pipe.

According to an embodiment of the present utility model, described waste water dephosphorization reaction unit also includes: pump and being connected with pump Desliming device, the clear liquid after described desliming device removing mud returns to described dephosphorization reative cell.

According to an embodiment of the present utility model, described waste water dephosphorization reaction unit also includes: pump and with described pump phase Settler even, the stillness of night after described settler precipitation returns to described dephosphorization reative cell.

According to an embodiment of the present utility model, described degassing precipitate and separate device includes: separator body, described separation This internal degassing mud chamber that formed of device, the bottom in described degassing precipitation chamber has mud row's mouth, the bottom in described degassing precipitation chamber Cross-sectional area be gradually reduced along direction from the top down；Baffle plate, described baffle plate is located at the top of described degassing mud chamber, described The upper part of described degassing mud chamber is divided into devolatilizing chamber and precipitation chamber, the bottom of described devolatilizing chamber and described precipitation chamber by baffle plate Bottom connection is so that waste water flows in described dephosphorization reative cell overflows to described devolatilizing chamber and then from the bottom of described devolatilizing chamber Described precipitation intracavity；Inclined settling plate or inclination precipitation tube, described inclined settling plate or inclination precipitation tube are located at described precipitation chamber In；Effluent overflow weir water, described effluent overflow weir water is located at described precipitation intracavity and the formation of described effluent overflow weir water has anti-with denitrogenation Answer the water outlet overflow launder separating outlet that device connects.

According to an embodiment of the present utility model, with the separator body part that described baffle plate limits described devolatilizing chamber Upper edge less than the upper edge of described baffle plate and limit the upper edge of separator body part in described precipitation chamber with described baffle plate.

According to an embodiment of the present utility model, the cross section of described separator body is rectangle.

According to an embodiment of the present utility model, the lower end of the first longitudinal side wall of the bottom of described separator body is downward Extend beyond the lower end of the second longitudinal side wall of the bottom of described separator body, and the lower end of described first longitudinal side wall and described the The lower end of two longitudinal side walls is the most overlapping.

According to an embodiment of the present utility model, described waste water dephosphorization reaction unit also includes: be located at described dephosphorization anti- The aeration pump answering tank body outside and to be connected with described aerator or Aeration fan, described water inlet connects waste water control valve.

According to an embodiment of the present utility model, the top of described dephosphorization reacting tank body is provided with top cover, described dephosphorization agent Add mouth to be located on described top cover.

According to an embodiment of the present utility model, described denitrification reactor includes the Anammox reaction being connected to each other Device and Anoxic/Aerobic reaction tank.

According to an embodiment of the present utility model, also include that coagulation reaction device, described coagulation reaction device are connected to Between described denitrification reactor and described advanced treatment system, described coagulation reaction device has along described waste water treatment process side To the coagulating basin being sequentially communicated, flocculation basin and sedimentation tank.

According to an embodiment of the present utility model, described advanced treatment system includes along described waste water treatment process direction The many groups Fenton's reaction device being sequentially connected, often group Fenton's reaction device includes Fenton's reaction pond and Fenton sedimentation tank.

According to an embodiment of the present utility model, have along described waste water treatment process in each described Fenton's reaction pond Multiple Fenton's reaction chambeies that direction is sequentially communicated and Fenton flocculation chamber, each described Fenton's reaction intracavity is provided with the fast blender of Fenton And described Fenton flocculation intracavity is provided with the slow blender of Fenton, in each described Fenton sedimentation tank, it is provided with Fenton tilted plate separator and sweet smell Pause mud scraper.

According to an embodiment of the present utility model, described advanced treatment system also includes: sand filter, described sand filter edge It is connected with Fenton sedimentation tank last described on described waste water treatment process direction；Air reservoir, described air reservoir and institute State sand filter to be connected.

According to an embodiment of the present utility model, multiple described Fenton's reaction ponds include one-level Fenton's reaction pond and two grades Fenton's reaction pond, multiple described Fenton sedimentation tanks include one-level Fenton sedimentation tank and two grades of Fenton sedimentation tanks, described one-level Fenton Reaction tank, described one-level Fenton sedimentation tank, described two grades of Fenton's reaction ponds and described two grades of Fenton sedimentation tanks are along at described waste water Reason process orientation is sequentially connected with.

According to an embodiment of the present utility model, described advanced treatment system also includes: sulfuric acid storage tank, and described sulphuric acid stores up Tank and first phase along described waste water treatment process direction in multiple Fenton's reaction chambeies in each described Fenton's reaction pond Even；In multiple Fenton's reaction chambeies in copperas solution tank, described copperas solution tank and each described Fenton's reaction pond Along described waste water treatment process direction first is connected；Hydrogen peroxide storage tank, described hydrogen peroxide storage tank and each described Fenton In multiple Fenton's reaction chambeies of reaction tank first along described waste water treatment process direction is connected；Fenton flocculant tank, Described Fenton flocculation tank is connected with the Fenton flocculation chamber in each described Fenton's reaction pond.

Accompanying drawing explanation

Fig. 1 is the structural representation of the Waste Water Treatment of the cellulose ethanol according to this utility model embodiment.

Fig. 2 is the anaerobic fermentation reaction dress of the Waste Water Treatment of the cellulose ethanol according to this utility model embodiment The structural representation put.

Fig. 3 is the waste water dephosphorization reaction dress of the Waste Water Treatment of the cellulose ethanol according to this utility model embodiment The structural representation put.

Fig. 4 is the waste water dephosphorization reaction dress of the Waste Water Treatment of the cellulose ethanol according to this utility model embodiment The degassing precipitate and separate device structural representation put.

Fig. 5 is that the structure of the Waste Water Treatment of the cellulose ethanol according to this utility model the first alternative embodiment is shown It is intended to.

Fig. 6 is that the anaerobism of the Waste Water Treatment of the cellulose ethanol according to this utility model the first alternative embodiment is sent out The structural representation of ferment reaction unit.

Fig. 7 is that the anaerobism of the Waste Water Treatment of the cellulose ethanol according to this utility model the first alternative embodiment is sent out The precipitate and separate device structural representation of ferment reaction unit.

Fig. 8 is that the structure of the Waste Water Treatment of the cellulose ethanol according to this utility model the second alternative embodiment is shown It is intended to.

Fig. 9 is that the anaerobism of the Waste Water Treatment of the cellulose ethanol according to this utility model the second alternative embodiment is sent out The structural representation of ferment reaction unit.

Figure 10 is the structure of the Waste Water Treatment of the cellulose ethanol according to this utility model the 3rd alternative embodiment Schematic diagram.

Figure 11 is the anaerobism of the Waste Water Treatment of the cellulose ethanol according to this utility model the 3rd alternative embodiment The structural representation of fermentation reaction device.

Reference:

The Waste Water Treatment 1 of cellulose ethanol,

Anaerobic fermentation reaction unit 10, waste water dephosphorization reaction unit 20, denitrification reactor 40, advanced treatment system 60,

Anaerobic fermentation tank body 100, anaerobic reaction room 110, waste water inlet 111, outlet 112, air vent 113, substitute Mouthfuls 114, mud discharging mouth 115, mud discharging valve and/or mud discharging pump 116, charging pump 117, gas control valve 118,

Stripping tube 200, straight length 210, air inlet 211, segmental arc 220, gas outlet 221,

Air supply pipe 300,

Precipitate and separate device 400, casing 410, degassing precipitation chamber 411, sludge outlet 412, separator outlet 413, first Longitudinal side wall the 414, second longitudinal side wall 415, import 416, dividing plate 420, degassing district 421, settling zone 422, precipitation inclined plate 430, overflow Weir 440, overflow launder 441,

Sinker 500,

Mud return line 600, sludge reflux pump 610,

Mud discharge pipe 700,

Water sealed tank 800,

Dephosphorization reacting tank body 1100, dephosphorization reative cell 1110, water inlet 1111, dephosphorization agent add mouth 1112, discharge gate 1113, waste water control valve 1114, top cover 1115, blow-off valve 1116,

Aerator 1200, aeration head or aeration tube 1210,

Degassing precipitate and separate device 1300, separator body 1310, degassing mud chamber 1311, devolatilizing chamber 1312, precipitation chamber 1313, mud row mouth the 1314, first longitudinal side wall the 1315, second longitudinal side wall 1316, baffle plate 1320, inclined settling plate or inclination precipitation Pipe 1330, effluent overflow weir water 1340, water outlet overflow launder 1341, separate outlet 1342,

Guide shell 1400,

Water-locator 1500, water distribution mouth 1510,

Cyclone 1600, cyclone inlets 1610, mud mouth 1620, cyclone outlet 1630, return pipe 1640,

Aeration pump or Aeration fan 1700,

Anaerobic ammonia oxidation reactor 2100, Anoxic/Aerobic reaction tank 2200,

Fenton's reaction device 4100,4110, two grades of one-level Fenton's reaction pond Fenton's reaction pond 4120, Fenton's reaction chamber 4111, Fenton flocculation chamber 4112, the fast blender of Fenton 4113, the slow blender of Fenton 4114, one-level Fenton sedimentation tank 4130, two grades Fenton sedimentation tank 4140, Fenton tilted plate separator 4131, Fenton mud scraper 4132, sand filter 4200, air reservoir 4300, sulphuric acid Storage tank 4400, copperas solution tank 4500, hydrogen peroxide storage tank 4600, Fenton flocculant tank 4700.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model Restriction.

Along with the process using Semen Maydis, Maninot esculenta crantz. (i.e. starch) to manufacture ethanol is prohibited, with Caulis et Folium Oryzae, straw (cellulose) The process manufacturing ethanol for raw material is increasingly widely applied, but traditional starch second compared by cellulose ethanol Alcohol, the COD in waste water rises to 5 ten thousand to 9 ten thousand from 2 thousand to 3 thousand, and the difficulty that waste water processes increases the most accordingly.

The Waste Water Treatment of the cellulose ethanol in correlation technique, not only COD treatment effect is limited, it is impossible to by waste water In COD process below 100mg/L, and operation is loaded down with trivial details, and system constitutes complexity, relatively costly.

Specifically, for the waste water treatment process of cellulose ethanol, anaerobic fermentation purifies the operation for necessity, logical Cross this operation under the effect of Anaerobe, the organic pollution in waste water to be degraded.

Existing anaerobic fermentation reaction unit is typically provided with air floating structure, such as, arrange upper and lower two in anaerobic reaction chamber interior The body that end opens wide, and motor and the agitating element being connected with motor are set in body, agitating element is in the driving of motor Lower rotation also pushes down on current, to form downward current in body, thus, and the waste water of anaerobic reaction indoor and mud Mixture enters from body upper end and flows out from anaerobic fermentation tank body lower end, forms circulation.

Additionally, the also usual flotation cell that arranges in anaerobic reaction indoor of existing anaerobic fermentation reaction unit, and flotation cell It is respectively arranged at two ends with by motor-driven cleaning element up and down, to avoid insoluble slurry to arrange from anaerobic fermentation reaction unit Go out.

Utility model people of the present utility model is found by research and experiment, and above-mentioned anaerobic device is individually present some and asks Topic, limits their application.

Such as, being provided with the anaerobic fermentation reaction unit of air floating structure, scope is little, mixing effect is poor in stirring, affects COD process Effect, and it is provided with the anaerobic fermentation reaction unit of flotation cell, the most blocked, affect the stability that COD processes, and, above-mentioned Air floating structure and flotation cell are both needed to be equipped with motor and agitating element or cleaning element, cause the structure of anaerobic fermentation reaction unit Complicated, relatively costly.

Additionally, utility model people of the present utility model also finds, for the waste water treatment process of cellulose ethanol, It is typically provided with high load capacity aeration operation and dephosphorization operation, and in the Waste Water Treatment of existing cellulose ethanol, high negative Lotus aeration operation and dephosphorization operation are separately carried out, and high load capacity aeration operation and dephosphorization operation are respectively necessary for being equipped with single equipment, Thus causing operation loaded down with trivial details, system constitutes complexity, relatively costly.

Additionally, along with the development of industrial and agricultural production and the raising of living standards of the people, the discharge capacity of nitrogen and phosphorus pollutants is drastically Increase.Body eutrophication caused by nitrogen and phosphorus pollution is extremely serious, and lake " wawter bloom " and coastal waters " red tide " happens occasionally, and more drills more Strong.Body eutrophication has endangered all conglomeraties such as agricultural, fishery, tourist industry, also constitutes drinking water hygiene and food safety Huge threat.Cost-effective control nitrogen and phosphorus pollution has become great environmental protection subject the most anxious to be resolved.Guanite, molecule Formula is MgNH4PO4 6H2O, is a kind of white crystal being insoluble in water, and under room temperature, the solubility product in water is 2.5 × 10- 13.By adding chemical reagent, the ammonia in waste water and phosphate can be made to form guanite, it is achieved go while nitrogen and phosphorus pollutants Remove.Additionally, guanite contains two kinds of nutrients of nitrogen phosphorus, it it is a kind of well slow-release fertilizer.

Guanite dissolubility in water and alkali is the lowest, uses the method forming guanite to remove the ammonia nitrogen in waste water and phosphorus Hydrochlorate, has the feature of high-efficient simple.All contain as wastewater from starch industry, livestock breeding wastewater, percolate from garbage filling field etc. The ammonia nitrogen of high concentration, it is difficult to directly carry out a biological disposal upon, it usually needs use physico-chemical process (such as blow-off method) to process in advance.Blow De-method requires that pH is up to more than 10, and inefficient (less than 50%), easily causes secondary pollution.If at the guanite sedimentation method Reason, the requirement to pH condition reduces than blow-off method, and efficiency is the highest.Test leather-making waste water made according to T ü nay et al., Under conditions of pH is 8～9, use guanite dephosphorization method that NH4+ clearance can be made to be up to more than 75%.Li et al. uses guanite The sedimentation method, initial ammonia nitrogen concentration was down to 210mg/l at the percolate of 5618mg/l in 15 minutes, and clearance is more than 96%.And PH the most only need to control between 8.5 to 9.The Chimenos et al. the reality to the waste water from dyestuff that NH4+-N initial concentration is 2320mg/l In testing, NH4+-N clearance has also reached more than 90%.

On the one hand phosphorus is as causing the key factor of eutrophication, and one side is again most valuable mineral resources.The world Upper explored phosphorus storage level is only sufficient to the mankind and uses 100 years.Owing to therefore guanite can be considered as directly as fertilizer One of promising phosphorus recovery approach, it is also this ad hoc special topic that Second Committee phosphorus reclaims International Academic Conference, carries out relevant from sewage The research of middle recovery phosphorus.Anaerobic digester effluent contains NH4+-N and PO43--P of higher concentration, is suitable for using birds droppings The stone sedimentation method process.As long as adding a small amount of Mg2+, can be so that the solubility product of various ions in waste water reaches satiety And state, form guanite precipitation.And owing to its SS is relatively low, the guanite purity of production is higher.Mg (OH) 2 and NaOH is with 1: 1 molar ratio relation puts into sludge-digestion liquid, to increase pH, makes guanite precipitate in fluid bed with fine granularity.Phosphorus reclaims Device can realize the soluble phosphate of 90% at present and reclaim, it is ensured that biological phosphate-eliminating operation up to standard.In actual waste water processes, bird The gastrolith sedimentation method also exist all limiting factors.First, the concentration of nitrogen and phosphorus in many waste water is the highest, but ratio each other is not The requirement of the guanite sedimentation method can be met.In this case, add some ion and can improve deposition efficiency, but place can be increased Reason cost.And nitrogen phosphorus itself is the control target that waste water processes, adds excess and can cause secondary pollution.The Mg2+ of excess adds It is necessary for adding for the guanite sedimentation method, and therefore, cheap additive is that can the guanite sedimentation method the actual pass applied Key.Mg (OH) 2 is more satisfactory Mg2+ additive, had both increased Mg2+ content, and can improve again pH.Mg (OH) 2 mud is in reality Border uses in producing.

In actual waste water processes, often except containing nitrogen and phosphorus pollution beyond the region of objective existence, organic pollution also can be contained in waste water, as Really these pollutant are not added with removing, after taking guanite technique, meeting entrainment portions organic pollution in guanite, reduces birds droppings The purity of stone and value, in turn result in secondary pollution.

In sum, for actual waste water, exploitation can remove the reaction of organic pollution, nitrogen and the phosphorus in water simultaneously Device, will have great importance.Under the guiding of this thinking, the utility model people of the application proposes a kind of dephosphorization reaction Device, for removing ammonia nitrogen (NH4+), phosphate (PO43-) and COD from waste water simultaneously, while processing sewage, also may be used To reclaim guanite as phosphate fertilizer.

In view of the cellulose alcohol wastewater treatment technology situation in correlation technique, the utility model proposes a kind of knot Structure is simple, the Waste Water Treatment 1 of the cellulose ethanol of low cost, COD and nitrogen phosphorus high treating effect.

Below with reference to the accompanying drawings the Waste Water Treatment 1 of cellulose ethanol according to this utility model embodiment is described.

As Figure 1-Figure 11, include according to the Waste Water Treatment 1 of the cellulose ethanol of this utility model embodiment Anaerobic fermentation reaction unit 10, waste water dephosphorization reaction unit 20, denitrification reactor 40 and advanced treatment system 60.

Anaerobic fermentation reaction unit 10, waste water dephosphorization reaction unit 20, denitrification reactor 40 and advanced treatment system 60 edge Waste water treatment process direction is sequentially connected with.

Wherein, anaerobic fermentation reaction unit 10 includes anaerobic fermentation tank body 100, stripping tube 200 and air supply pipe 300.Anaerobism Having anaerobic reaction room 110 in fermentation tank 100, anaerobic reaction room 110 has waste water inlet 111, outlet 112 and air vent 113.Stripping tube 200 pipe is located in anaerobic reaction room 110, and the upper end of stripping tube 200 has a gas outlet 221, and stripping tube 200 Lower end has air inlet 211.Air supply pipe 300 is connected with the air inlet 211 of stripping tube 200, uses for supply in stripping tube 200 Gas in air stripping.This gas being used for air stripping can be oxygen-depleted gas or noble gas, preferably biogas.

Waste water dephosphorization reaction unit 20 includes dephosphorization reacting tank body 1100, aerator 1200 and degassing precipitate and separate device 1300.Having dephosphorization reative cell 1110 in dephosphorization reacting tank body 1100, dephosphorization reative cell 1110 has water inlet 1111 and dephosphorization Mouth 1112 is added in agent.Aerator 1200 is located in dephosphorization reative cell 1110.Degassing precipitate and separate device 1300 is located at dephosphorization reaction In room 1110, and degassing precipitate and separate device 1300 is positioned at above aerator 1200, and degassing precipitate and separate device 1300 is used for separating Gas and water and mud.

It is that waste water treatment process direction refers to it will be appreciated by those skilled in the art that, in whole works that waste water processes In sequence, along the ordering of each operation, waste water from first operation sequentially into the flow direction of last procedure, i.e. along " detesting Aerobe fermentation reaction unit 10 → waste water dephosphorization reaction unit 20 → denitrification reactor, 40 → advanced treatment system 60 " direction.

Below with reference to the accompanying drawings Waste Water Treatment 1 useless of cellulose ethanol according to this utility model embodiment described Water treatment procedure.

Waste water is entered anaerobic reaction room 110 by waste water inlet 111, and air supply pipe 300 supplies to stripping tube 200, anaerobic reaction Forming anaerobic environment in room 110, meanwhile, stripping tube 200, by exporting lift gas in anaerobic reaction room 110, plays stirring Waste water and the effect of anaerobic sludge, thus, the waste water in anaerobic reaction room 110 mixes rapidly with anaerobic sludge, waste water and anaerobism The intense contact of mud makes the organic pollutant degradation in waste water, and gas unnecessary in anaerobic reaction room 110 is by air vent 113 row Going out, the waste water after anaerobic fermentation purifies is flowed out anaerobic reaction room 110 by outlet 112, and is entered dephosphorization by water inlet 1111 Reative cell 1110, adds mouth 1112 by dephosphorization agent and adds dephosphorization agent (such as magnesium oxide), aeration in dephosphorization reative cell 1110 Device 1200 is oxygen supply aeration in dephosphorization reative cell 1110, forms aerobic environment, meanwhile, aerator in dephosphorization reative cell 1110 The air of 1200 supplies plays the effect of stirring waste water, the thus waste water in dephosphorization reative cell 1110 and aerobic sludge and dephosphorization agent Rapidly mixing, remove deliquescent colloidal state in waste water can biochemical Organic substance carry out dephosphorization, reacted after waste water overflow Flowing to deaerate in precipitate and separate device 1300, thus gas, water separate with aerobic sludge, and the gas after separation is by dephosphorization reative cell The top of 1110 is discharged, and then, water separates with aerobic sludge, and the aerobic sludge after separation returns from degassing precipitate and separate device 1300 Recycling in dephosphorization reative cell 1110, the water overflow after separating with aerobic sludge goes out to deaerate precipitate and separate device 1300, and discharge removes Phosphorus reaction room 1110, is delivered to denitrification reactor 40 and carries out denitrogenation, and the waste water after denitrogenation enters advanced treatment system 60, to enter one Step is removed cannot biodegradable organic pollution in waste water.

The Waste Water Treatment 1 of the cellulose ethanol according to this utility model embodiment, processes along waste water by arranging Anaerobic fermentation reaction unit 10, waste water dephosphorization reaction unit 20, denitrification reactor 40 and the depth that process orientation is sequentially connected with Reason system 60, it is possible to the COD in cellulose alcohol wastewater is processed below 100mg/L.

Further, by arranging stripping tube 200 and air supply pipe 300 in anaerobic fermentation reaction unit 10, it is possible to use supply Pipe 300 provides gas in stripping tube 200, and stripping tube 200 can be utilized to export gas in anaerobic reaction room 110 carry out gas Carry, stripping tube 200 gas exported can stir the mixture of the waste water in anaerobic reaction room 110 and anaerobic sludge, makes to give up Water and anaerobic sludge fully, contact rapidly, and stirring scope is big, mixing effect good, it is possible to COD treatment effect is greatly improved.Separately On the one hand, by arranging stripping tube 200, air floating structure can be cancelled and motor that air floating structure need to be equipped with and agitating element, Simplify the structure of anaerobic fermentation reaction unit 10, reduce the cost of anaerobic fermentation reaction unit 10.It addition, according to this practicality The anaerobic fermentation reaction unit 10 of new embodiment eliminates flotation cell and flotation cell need to be equipped with motor and cleaning element, enter One step simplifies the structure of anaerobic fermentation reaction unit 10, and reduce further the cost of anaerobic fermentation reaction unit 10.

Additionally, add mouth 1112 by arranging dephosphorization agent on dephosphorization reacting tank body 1100, and at dephosphorization reative cell 1110 Aerator 1200 is inside set, is integrated with aeration and phosphorus removal functional, thus can substitute for cellulose alcohol wastewater processing system The equipment that middle high load capacity aeration operation and dephosphorization operation are each required, thus simplify the knot of cellulose alcohol wastewater processing system Structure, reduces the cost of cellulose alcohol wastewater processing system, and COD high treating effect.

The Waste Water Treatment 1 of the cellulose ethanol according to this utility model embodiment, has simple in construction, cost The advantages such as low, COD high treating effect.

Below with reference to the accompanying drawings the Waste Water Treatment of cellulose ethanol according to this utility model specific embodiment is described 1。

As Figure 1-Figure 11, include according to the Waste Water Treatment 1 of the cellulose ethanol of this utility model embodiment Along waste water process direction be sequentially connected with anaerobic fermentation reaction unit 10, waste water dephosphorization reaction unit 20, denitrification reactor 40 and Advanced treatment system 60.

Advantageously, as shown in Fig. 2, Fig. 6, Fig. 9 and Figure 11, the lower end of stripping tube 200 is adjacent to the end of anaerobic reaction room 110 Portion, and the upper end of stripping tube 200 extends to the top of anaerobic reaction room 110, outlet 112 is located at the upper of anaerobic reaction room 110 Portion and the upper end higher than stripping tube 200.The gas that air supply pipe 300 provides is by stripping tube 200, by the end of anaerobic reaction room 110 Portion is transported to the top of anaerobic reaction room 110, and exports from gas outlet 221 with to the waste water in anaerobic reaction room 110 with detest Oxygen mud mixture is stirred, and thus, is possible not only to be easy to air supply pipe 300 and provides gas in stripping tube 200, and permissible Improve stirring scope and the mixing effect of stripping tube 200 further, and the gas exported by stripping tube 200 is without interference with outlet The water outlet of 112.

Alternatively, as shown in Fig. 2, Fig. 6, Fig. 9 and Figure 11, the upper surface of stripping tube 200 is opened wide to form gas outlet 221, The lower surface of stripping tube 200 is opened wide to form air inlet 211, so can increase air inlet 211 and gas outlet to greatest extent The valid circulation area of 221, thus the output of gas in improving stripping tube 200 unit interval.

According in specific embodiments more of the present utility model, as shown in Fig. 2, Fig. 6, Fig. 9 and Figure 11, stripping tube 200 Including straight length 210 and segmental arc 220.Straight length 210 vertically extends, the upper end phase of segmental arc 220 and straight length 210 Even, the angle α between opening direction and the vertically downward direction of gas outlet 221 is more than or equal to zero degree and is less than 180 degree, i.e. 0 ° ≤ α ＜ 180 °.

Preferably, as shown in Fig. 6 and Figure 11, segmental arc 220 is inverted U-shaped, the opening direction of gas outlet 221 straight down, In other words, α=0 °.The gas so exported by stripping tube 200 stirs downwards waste water and anaerobism from the top of anaerobic reaction room 110 The mixture of mud, further increases stirring scope and mixing effect, thus improves anaerobic fermentation reaction unit 10 further COD treatment effect.

In order to further improve severe degree and the speed that waste water mixes with anaerobic sludge, stripping tube 200 can be Multiple, air supply pipe 300 can one or more and bottom levels in anaerobic reaction room 110 be arranged, and multiple stripping tube 200 is at water In plane, interval is arranged and lower end is connected with same air supply pipe 300 or is connected with multiple air supply pipes 300 respectively.

In concrete examples more of the present utility model, as shown in Figure 6, anaerobic fermentation reaction unit 10 also includes precipitation point From device 400, in precipitate and separate device 400 is located at anaerobic reaction room 110 and be positioned at above stripping tube 200, precipitate and separate device 400 has The separator outlet 413 being connected with outlet 112, water inlet 1111 phase of outlet 112 and waste water dephosphorization reaction unit 20 Even.Waste water outflow after anaerobic fermentation purifies is in precipitate and separate device 400, and thus gas separates with water and anaerobic sludge, divides Gas after from is discharged by air vent 113, and then, water separates with anaerobic sludge, and the anaerobic sludge after separation is from precipitate and separate device 400 return recycling in anaerobic reaction room 110, and the water separator outlet 413 after separation is transported to outlet 112, row Go out anaerobic reaction room 110 and be delivered to waste water dephosphorization reaction unit 20.

Thus, it is possible to utilize precipitate and separate device 400 first to isolate gas, water and anaerobic sludge in anaerobic reaction room 110, Product after separating again is each delivered to different regions, improves the pure of water outlet.

Specifically, as it is shown in fig. 7, precipitate and separate device 400 includes casing 410, dividing plate 420, precipitation inclined plate 430 and overflow Weir 440.

Being formed with degassing precipitation chamber 411 in casing 410, the bottom in degassing precipitation chamber 411 has sludge outlet 412, degassing The cross-sectional area of the bottom in precipitation chamber 411 is gradually reduced along direction from the top down.Dividing plate 420 is located at degassing precipitation chamber 411 Top, the upper part in degassing precipitation chamber 411 is divided into degassing district 421 and settling zone 422 by dividing plate 420, the bottom in degassing district 421 with The bottom connection of settling zone 422 is so that waste water overflows in degassing district 421 and then from degassing district 421 from anaerobic reaction room 110 Bottom flows in settling zone 422.Precipitation inclined plate 430 is located in settling zone 422.In downflow weir 440 is located at settling zone 422 and overflow Weir 440 forms the overflow launder 441 with separator outlet 413.

Below with reference to Fig. 7, the precipitate and separate device 400 separation process to water, gas and anaerobic sludge is described.

Gas-entrained and anaerobic sludge in water after anaerobic sludge is degraded, the water overflow of gas-entrained and anaerobic sludge is extremely The degassing district 421 in degassing precipitation chamber 411, wherein gas escapes from degassing district 421, air vent 113 discharge, complete gas and divide From.The water carrying anaerobic sludge secretly after separating with gas is flowed to settling zone 422, now anaerobic sludge by the bottom in the district 421 that deaerates Precipitation is sunk and in the guiding of inwall of degassing precipitation chamber 411 lower tilt down to sludge outlet 412, by sludge outlet 412 row Go out precipitate and separate device 400 and enter anaerobic reaction room 110, continue on for wastewater degradation, degassing precipitation chamber 411 in and anaerobic sludge Water overflow after separation is in the overflow launder 441 of downflow weir 440, and is discharged by separator outlet 413 and outlet 112 successively Anaerobic reaction room 110, carries out subsequent treatment.During anaerobic sludge rises with water, anaerobic sludge settles on precipitation inclined plate 430 And be slipped to, bottom degassing precipitation chamber 411, contribute to anaerobic sludge and be separated from water, so far, complete water, anaerobic sludge and gas Separate.

Advantageously, as it is shown in fig. 7, limit the upper edge of the casing 410 in the district 421 that deaerates with dividing plate 420 less than dividing plate 420 Upper edge and limit the upper edge of casing 410 part of settling zone 422 with dividing plate 420.In other words, casing 410 limit de- The upper edge of the part in gas district 421, less than edge in the part limiting settling zone 422 of casing 410, and is less than the upper of dividing plate 420 Edge.The upper edge of downflow weir 440 can with in the part limiting degassing district 421 of casing 410 along concordant or higher than casing 410 The upper edge of part limiting degassing district 421, and the upper edge of downflow weir 440 limits settling zone 422 less than casing 410 Part on along and the upper edge of dividing plate 420.Thus it can be prevented that degassing district 421 in water from top overflow to settling zone 422, Ensure that the water in degassing district 421 flow to settling zone 422 bottom degassing district 421, and then make anaerobic sludge be sufficiently separated, and sink Water in shallow lake district 422 by overflow in overflow launder 441, it is to avoid the water in overflow launder 441 carries anaerobic sludge secretly.

Alternatively, as it is shown in fig. 7, casing 410 is cuboid, the lower end of the first longitudinal side wall 414 of the bottom of casing 410 to Under extend beyond the lower end of the second longitudinal side wall 415 of bottom of casing 410, and the lower end of the first longitudinal side wall 414 and the second longitudinal side The lower end of wall 415 is the most overlapping.Thus can advantageously avoid the anaerobic sludge in anaerobic reaction room 110 by dirt In the degassing precipitation chamber 411 of mud outlet 412 entrance precipitate and separate device 400.

Such as, in four longitudinal side walls of casing 410, two longitudinal side walls that length is longer in the horizontal direction are respectively One longitudinal side wall 414 and the second longitudinal side wall 415, the lower end of the first longitudinal side wall 414 and the lower end of the second longitudinal side wall 415 are relative to first The upper end of longitudinal side wall 414 and the upper end of the second longitudinal side wall 415 are mutually adjacent, and the lower end of the first longitudinal side wall 414 is positioned at the second longitudinal side The lower section of the lower end of wall 415, and the projection that the lower end of the lower end of the first longitudinal side wall 414 and the second longitudinal side wall 415 is in horizontal plane Overlap, gap between lower end and the lower end of the second longitudinal side wall 415 of the first longitudinal side wall 414 constitutes sludge outlet 412, and thus one It is anti-that aspect can return anaerobism by sludge outlet 412 after can ensure that the anaerobic sludge precipitation in degassing precipitation chamber 411 smoothly Answer room 110, and the structure of on the other hand this sludge outlet 412 can stop that the anaerobic sludge in anaerobic reaction room 110 is from mud Outlet 412 entrance degassing precipitation chamber 411, it is ensured that the anaerobic sludge separating effect of precipitate and separate device 400.

In specific embodiments more of the present utility model, as shown in figures 9 and 11, anaerobic fermentation reaction unit 10 also wraps Including precipitate and separate device 400, precipitate and separate device 400 is located at outside anaerobic fermentation tank body 100, and outlet 112 is by precipitate and separate device 400 It is connected with the water inlet 1111 of waste water dephosphorization reaction unit 20.Precipitate and separate device 400 includes casing 410, precipitation inclined plate 430 and overflows Stream weir 440.

Forming degassing precipitation chamber 411 in casing 410, degassing precipitation chamber 411 has import 416, separator outlet 413 and Sludge outlet 412, import 416 connects with the outlet 112 of anaerobic reaction room 110, and separator outlet 413 is anti-with waste water dephosphorization The water inlet 1111 answering device 20 is connected, and at least one conical cavity, the horizontal stroke of each conical cavity are formed at the bottom in degassing precipitation chamber 411 Sectional area is gradually reduced along direction from the top down, and sludge outlet 412 is formed at the bottom of described conical cavity.Precipitation inclined plate 430 It is located in degassing precipitation chamber 411.Downflow weir 440 is located in degassing precipitation chamber 411, and is formed and separator in downflow weir 440 The downflow weir 440 of outlet 413 connection.

Below with reference to Fig. 9 and Figure 11, the precipitate and separate device 400 separation process to water, gas and anaerobic sludge is described.

Gas-entrained and anaerobic sludge in the water flowed out by the outlet 112 of anaerobic reaction room 110, gas-entrained and anaerobism The water of mud enters degassing precipitation chamber 411 by import 416, and wherein gas escapes and discharge degassing precipitation chamber from ullage 411, complete gas and separate.Water after separating with gas carries anaerobic sludge secretly, and wherein anaerobic sludge precipitation is sunk and heavy in degassing The guiding of the inwall in lower taper chamber, chamber, shallow lake 411, down to sludge outlet 412, is discharged degassing precipitation chamber 411 by sludge outlet 412, Water overflow after separating with anaerobic sludge in degassing precipitation chamber 411 is in the overflow launder 441 of downflow weir 440, and by separator Outlet 413 discharges degassing precipitation chamber 411, carries out subsequent treatment.During anaerobic sludge rises with water, anaerobic sludge is in precipitation Settle and be slipped to the conical cavity bottom degassing precipitation chamber 411 on swash plate 430, contribute to anaerobic sludge and be separated from water, so far, complete The separation of Cheng Shui, anaerobic sludge and gas.

Thus, it is possible to utilize precipitate and separate device 400 first to isolate gas, water and anaerobic sludge outside anaerobic reaction room 110, Product after separating again is each delivered to different regions, improves the pure of water outlet.

Further, as shown in figures 9 and 11, anaerobic fermentation reaction unit 10 also includes sinker 500, sinker 500 It is connected between the outlet 112 of anaerobic reaction room 110 and the import 416 in degassing precipitation chamber 411.So can utilize sinker 500 consume and disperse the energy of the water flowed out by anaerobic fermentation tank body 100, prevent from or alleviate being flowed out by anaerobic fermentation tank body 100 The water erosion damage to precipitate and separate device 400.

Advantageously, as shown in figures 9 and 11, anaerobic fermentation reaction unit 10 also includes mud return line 600, sludge reflux One end of pipe 600 connects with anaerobic reaction room 110, the sludge outlet 412 in degassing precipitation chamber 411 by mud discharge pipe 700 with Mud return line 600 is connected, and mud return line 600 is provided with sludge reflux pump 610, and the anaerobism discharged from sludge outlet 412 is dirty Mud can pass sequentially through mud discharge pipe 700 and mud return line 800 returns to anaerobic reaction room 110, thus recycles.

Alternatively, for external precipitate and separate device 400, hydrocyclone or external air-floating apparatus can be used to replace.

In concrete examples more of the present utility model, as shown in figure 11, the bottom of anaerobic reaction room 110 has mud row Putting mouth 115, mud discharging mouth 115 connects mud discharging valve and/or mud discharging pump 116, unnecessary in anaerobic reaction room 110 Anaerobic sludge can discharge anaerobic reaction room 110 by mud discharging mouth 115.

Alternatively, as shown in figures 9 and 11, waste water inlet 111 connects charging pump 117, anti-to control whether to anaerobism Answer room 110 transport wastewater and the wastewater flow rate to anaerobic reaction room 110 conveying.As depicted in figs. 1 and 2, air supply pipe 300 is provided with The gas control valve 118 being positioned at outside anaerobic reaction room 110, to control whether to supply to stripping tube 200 and to stripping tube 200 Air demand.

Further, the water inlet pipe at waste water inlet 111 can connect water-locator, or offers water distribution on water inlet pipe Hole.

Advantageously, as shown in Fig. 2, Fig. 6, Fig. 9 and Figure 11, anaerobic fermentation reaction unit 10 also includes water sealed tank 800, anaerobism The top of fermentation tank 100 is provided with safe QI KOU 114, and safe QI KOU 114 is connected with water sealed tank 800.Thus can utilize water seal Tank 800 completely cuts off air, maintains the pressure of anaerobic reaction room 110, and can play back-fire relief effect, additionally can play biogas Certain clean-up effect.

Alternatively it is also possible to use relief valve to replace water sealed tank 800.

In specific embodiments more of the present utility model, as it is shown on figure 3, waste water dephosphorization reaction unit 20 also includes aeration Pump or Aeration fan 1700, aeration pump or Aeration fan 1700 be located at dephosphorization reacting tank body 1100 outside and with aerator 1200 It is connected, with to aerator 1200 pumped air.In certain embodiments, aerator 1200 for blast aeration and includes aeration Airduct and the aeration plate or the aeration tube that are arranged on aeration airduct end, aeration pump or Aeration fan 1700 pass through aeration airduct by sky Gas is transported to aeration tube or aeration plate, aeration tube or aeration plate by air aeration to dephosphorization reative cell 1110.

Alternatively, aerator 1200 can be jetting type aerator, in the case, it is not necessary to be located at dephosphorization retort Aeration pump outside body 1100 or Aeration fan 1700, jetting type aerator utilizes jetting type hydraulic blow formula air diffusion dress Putting and draw air in dephosphorization reative cell 1110, it is anti-that the ejector combination being such as located in dephosphorization reative cell 1110 is located at dephosphorization Answer the jet pump outside tank body 1100.

Advantageously, as it is shown on figure 3, water inlet 1111 connects the waste water control valve being positioned at outside dephosphorization reacting tank body 1100 1114, to control whether to dephosphorization reative cell 1110 transport wastewater and to the wastewater flow rate of dephosphorization reative cell 1110 conveying.

As it is shown on figure 3, put into dephosphorization reative cell 1110 smoothly for convenience of dephosphorization agent and avoid the entrance such as other impurity to remove Phosphorus reaction room 1110, simultaneously works as insulation and reduces the effect adding thermal energy consumption, and the top of dephosphorization reacting tank body 1100 is provided with top cover 1115, dephosphorization agent adds mouth 1112 and is located on top cover 1115.

In specific embodiments more of the present utility model, as it is shown on figure 3, aerator 1200 have multiple aeration head or Aeration tube 1210, multiple aeration heads or aeration tube 1210 are spaced setting in dephosphorization reative cell 1110, and aerator 1200 passes through Multiple aeration heads or aeration tube 1210 to dephosphorization reative cell 1110 uniform aeration, improve oxygen supply even results and to waste water and The uniform stirring effect of aerobic sludge.

Further, as it is shown on figure 3, waste water dephosphorization reaction unit 20 also includes multiple guide shell 1400, guide shell 1400 Quantity corresponding with the quantity of aeration head or aeration tube 1210, the top and bottom of each guide shell 1400 are the most unlimited, multiple exposures Gas head or aeration tube 1210 stretch into multiple guide shell 1400 from the lower end of multiple guide shells 1400 respectively.Thus, it is possible to utilize many Individual guide shell 1400 plays guide functions such that it is able to make the waste water in dephosphorization reative cell 1110 and aerobic sludge abundant further Contact, aerobic sludge is suspended state, improves the exposure level of waste water and aerobic sludge, thus improves waste water treatment efficiency.

In conjunction with the design of guide shell, under optimum reaction condition, add Mg (OH) 2 emulsion, generate ammonia magnesium phosphate (MgNH4PO4.6H2O is commonly called as guanite) crystallizes.Under such circumstances, a part of COD can also be by the dissolving in waste water Oxygen is removed, and forms new Biomass and carbon dioxide.

Alternatively, as it is shown on figure 3, waste water dephosphorization reaction unit 20 also includes that water-locator 1500, water-locator 1500 are located at and remove Phosphorus reaction room 1110 is interior and is positioned at below aerator 1200, and water-locator 1500 is connected with water inlet 1111, and water-locator 1500 There are multiple water distribution mouths 1510 that interval is arranged and Open Side Down.Waste water is entered water-locator 1500 by water inlet 1111, and by cloth Multiple water distribution mouths 1510 of hydrophone 1500 are dispersed in dephosphorization reative cell 1110.

In concrete examples more of the present utility model, as it is shown on figure 3, waste water dephosphorization reaction unit 20 also includes cyclone 1600, dephosphorization reative cell 1110 has the discharge gate 1113 being positioned at dephosphorization reacting tank body 1100 bottom, and cyclone 1600 has rotation Stream device import 1610, mud mouth 1620 and cyclone outlet 1630, cyclone inlets 1610 connects and eddy flow with discharge gate 1113 Being connected between device import 1610 with discharge gate 1113 and have blow-off valve 1116, cyclone outlet 1630 is by return pipe 1640 and dephosphorization Reative cell 1110 is connected.

It is deposited on the liquid-solid mixture bottom dephosphorization reative cell 1110 and can sequentially pass through discharge gate 1113, blow-off valve 1116 and Cyclone inlets 1610 enters cyclone 1600 and separates in cyclone 1600, and the water after separation passes sequentially through cyclone Outlet 1630 and return pipe 1640 return dephosphorization reative cell 1110, and the solid (such as ammoniomagnesium phosphate) after separating is by mud mouth 1620 It is delivered to birds droppings pond, can be used as fertilizer.

In conjunction with the design of cyclone, in order to separate struvite crystals and activated sludge and water, in order to improve the pure of guanite Spend and as fertilizer application.

Comparing traditional dephosphorization apparatus, as compared with the device adding iron salt, the dephosphorization of this utility model embodiment is reacted Installation cost is lower, the multiple purposes of set of device (except ammonia nitrogen and COD), and the guanite of generation does not the most cause secondary pollution, Or slow release N, the fertilizer of P, Mg.Guanite granule is separated from device by cyclone, and its quality meets such as The fertilizer relevant criterion of European Union.

In specific embodiments more of the present utility model, waste water dephosphorization reaction unit 20 also includes pump and is connected with pump Desliming device, the clear liquid after described desliming device removing mud returns to state dephosphorization reative cell 1110, thus improves the profit of waste water By rate.

Alternatively, described desliming device can use settler to replace, i.e. waste water dephosphorization reaction unit 20 also includes pump And the settler being connected with described pump, the stillness of night after described settler precipitation returns to dephosphorization reative cell 1110.

In concrete examples more of the present utility model, as shown in Figure 3 and Figure 4,.Degassing precipitate and separate device 1300 includes point From device body 1310, baffle plate 1320, inclined settling plate or inclination precipitation tube 1330 and effluent overflow weir water 1340.

Being formed with degassing mud chamber 1311 in separator body 1310, the bottom of degassing mud chamber 1311 has mud row's mouth 1314, the cross-sectional area of the bottom of degassing mud chamber 1311 is gradually reduced along direction from the top down.Baffle plate 1320 is located at degassing The top of mud chamber 1311, the upper part of degassing mud chamber 1311 is divided into devolatilizing chamber 1312 and precipitation chamber 1313 by baffle plate 1320, The bottom of devolatilizing chamber 1312 connects so that waste water overflows to devolatilizing chamber from dephosphorization reative cell 1110 with the bottom in precipitation chamber 1313 Flow to precipitate in chamber 1313 in 1312 and then from the bottom of devolatilizing chamber 1312.It is heavy that inclined settling plate or inclination precipitation tube 1330 are located at In chamber, shallow lake 1313.Effluent overflow weir water 1340 is located in precipitating chamber 1313 and effluent overflow weir water 1340 is formed and has and denitrification reactor The water outlet overflow launder 1341 separating outlet 1342 of 40 connections.

Below with reference to Fig. 3 and Fig. 4, the degassing precipitate and separate device 1300 separation process to water, gas and aerobic sludge is described.

Gas-entrained and aerobic sludge in water after aerobic sludge is degraded, the water overflow of gas-entrained and aerobic sludge is extremely The devolatilizing chamber 1312 of degassing mud chamber 1311, wherein gas escapes from devolatilizing chamber 1312, the top of dephosphorization reative cell 1110 arrange Go out, complete gas and separate.The water carrying aerobic sludge secretly after separating with gas is flowed to precipitation chamber by the bottom of devolatilizing chamber 1312 1313, now aerobic sludge precipitation sinking the guiding at the inwall of degassing mud chamber 1311 lower tilt arrange mouth down to mud 1314, mud row's mouth 1314 discharge degassing precipitate and separate device 1300 and enter dephosphorization reative cell 1110, continue on for wastewater degradation, Water overflow after separating with aerobic sludge in degassing mud chamber 1311 in the water outlet overflow launder 1341 of effluent overflow weir water 1340, And be expelled to outside dephosphorization reative cell 1110 by separating outlet 1342, carry out subsequent treatment.During aerobic sludge rises with water, good Oxygen mud is at inclined settling plate or tilts to settle and be slipped on precipitation tube 1330, bottom degassing mud chamber 1311, to contribute to aerobic Mud is separated from water, and so far, completes the separation of water, aerobic sludge and gas.

Advantageously, as shown in Figure 4, the upper edge of the separator body 1310 limiting devolatilizing chamber 1312 with baffle plate 1320 is less than The upper edge of baffle plate 1320 and limit the upper edge of separator body 1310 part in precipitation chamber 1313 with baffle plate 1320.Change speech It, the upper edge of the part limiting devolatilizing chamber 1312 of separator body 1310, heavy less than limiting of separator body 1310 Edge in the part in chamber, shallow lake 1313, and less than the upper edge of baffle plate 1320.The upper edge of effluent overflow weir water 1340 can be with separator body In the part limiting devolatilizing chamber 1312 of 1310 along concordant or higher than separator body 1310 limit devolatilizing chamber 1312 The upper edge of part, and the upper edge of effluent overflow weir water 1340 is less than the portion limiting precipitation chamber 1313 of separator body 1310 Divide upper edge and the upper edge of baffle plate 1320.Thus it can be prevented that water in devolatilizing chamber 1312 from top overflow to precipitation chamber 1313, Ensure that the water in devolatilizing chamber 1312 flow to precipitate chamber 1313 bottom devolatilizing chamber 1312, and then make aerobic sludge be sufficiently separated, and And water in precipitation chamber 1313 by overflow in water outlet overflow launder 1341, it is to avoid the water in water outlet overflow launder 1341 is carried secretly Aerobic sludge.

Alternatively, as shown in Figure 4, the cross section of separator body 1310 is rectangle, such as cuboid, separator body The lower end of the first longitudinal side wall 1315 of the bottom of 1310 extends downward beyond the second longitudinal side wall of the bottom of separator body 1310 The lower end of 1316, and the lower end of the first longitudinal side wall 1315 is the most overlapping with the lower end of the second longitudinal side wall 1316.Thus The aerobic sludge in dephosphorization reative cell 1110 can be advantageously avoided to enter degassing precipitate and separate device by mud row's mouth 1314 In the degassing mud chamber 1311 of 1300.

Such as, in four longitudinal side walls of separator body 1310, two longitudinal side walls that length is longer in the horizontal direction It is respectively the first longitudinal side wall 1315 and the second longitudinal side wall 1316, the lower end of the first longitudinal side wall 1315 and the second longitudinal side wall 1316 times Hold mutually adjacent relative to the upper end of the upper end of the first longitudinal side wall 1315 and the second longitudinal side wall 1316, the first longitudinal side wall 1315 times End is positioned at the lower section of lower end of the second longitudinal side wall 1316, and the lower end of the first longitudinal side wall 1315 and the lower end of the second longitudinal side wall 1316 Projection in horizontal plane is overlapping, and the gap between lower end and the lower end of the second longitudinal side wall 1316 of the first longitudinal side wall 1315 is constituted Dirty mud row's mouth 1314, can pass through mud after thus on the one hand can ensure that the aerobic sludge precipitation in degassing mud chamber 1311 Row's mouth 1314 returns dephosphorization reative cell 1110 smoothly, and the structure of another aspect this mud row's mouth 1314 can stop that dephosphorization is reacted Aerobic sludge in room 1110 enters degassing mud chamber 1311 from mud row's mouth 1314, it is ensured that deaerate the good of precipitate and separate device 1300 Oxygen mud separating effect.

In specific embodiments more of the present utility model, as shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, denitrification reactor 40 wraps Include the anaerobic ammonia oxidation reactor 2100 and Anoxic/Aerobic reaction tank 2200 being sequentially connected with along waste water treatment process direction.Wherein, Anaerobic ammonia oxidation reactor 2100 is connected with waste water dephosphorization reaction unit 20, Anoxic/Aerobic reaction tank 2200 and advanced treatment system 60 are connected, waste water dephosphorization reaction unit 20 waste water flowed out flows through anaerobic ammonia oxidation reactor 2100 successively and Anoxic/Aerobic is anti- Pond 2200 is answered to carry out denitrogenation processing.

In concrete examples more of the present utility model, the Waste Water Treatment 1 of cellulose ethanol also includes that coagulation is anti- Answering device, described coagulation reaction device to be connected between denitrification reactor 40 and advanced treatment system 60, described coagulating fills Put and there is coagulating basin, flocculation basin and the sedimentation tank being sequentially communicated along described waste water treatment process direction, in coagulating basin, add coagulation Agent, adds flocculant in flocculation basin, sedimentation tank is used for the precipitate and separate that deaerates.

In specific embodiments more of the present utility model, as shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, advanced treatment system 60 Including the many groups Fenton's reaction device 4100 being sequentially connected along described waste water treatment process direction, often group Fenton's reaction device 4100 Including Fenton's reaction pond and Fenton sedimentation tank.The waste water flowed out by denitrification reactor 40 is through often organizing Fenton's reaction device 4100 Fenton's reaction pond and Fenton sedimentation tank, carry out Fenton oxidation, with remove further in waste water cannot biodegradable organic dirt Dye thing.

Specifically, as shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, have at described waste water in each described Fenton's reaction pond Manage multiple Fenton's reaction chambeies 4111 and Fenton flocculation chamber 4112 that process orientation is sequentially communicated, set in each Fenton's reaction chamber 4111 It is provided with the slow blender of Fenton 4114 in having the fast blender of Fenton 4113 and Fenton flocculation chamber 4112.Need exist for being appreciated that, fragrant The speed of fast blender 4113 and the slow blender of Fenton 4114 is comparatively speaking, i.e. the rotating speed of the fast blender of Fenton 4113 is higher than The rotating speed of the slow blender of Fenton 4114.It is provided with Fenton tilted plate separator 4131 and Fenton mud scraper in each described Fenton sedimentation tank 4132。

For example, multiple described Fenton's reaction ponds include one-level Fenton's reaction pond 4110 and two grades of Fenton's reaction ponds 4120, multiple described Fenton sedimentation tanks include one-level Fenton sedimentation tank 4130 and two grades of Fenton sedimentation tanks 4140, and one-level Fenton is anti- Answer pond 4110,4130, two grades of Fenton's reaction ponds 4120 of one-level Fenton sedimentation tank and two grades of Fenton sedimentation tanks 4140 along described waste water Process process orientation is sequentially connected with.Wherein, in each in one-level Fenton's reaction pond 4110 and two grades of Fenton's reaction ponds 4120 It is respectively provided with three the Fenton's reaction chambeies 4111 being sequentially communicated along described waste water treatment process direction and a Fenton flocculation chamber 4112, It is provided with Fenton in being respectively equipped with the fast blender of Fenton 4113 and Fenton flocculation chamber 4112 in three Fenton's reaction chambeies 4111 to stir slowly Machine 4114.It is respectively equipped with Fenton tilted plate separator 4131 and sweet smell in one-level Fenton sedimentation tank 4130 and two grades of Fenton sedimentation tanks 4140 Pause mud scraper 4132.

Further, as shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, advanced treatment system 60 also includes sand filter 4200 and air Storage tank 4300.Sand filter 4200 along described waste water treatment process direction with Fenton sedimentation tank last described (such as two grades Fenton sedimentation tank 4140) it is connected.Air reservoir 4300 is connected with sand filter 4200.By along described waste water treatment process direction The water that last described Fenton sedimentation tank (such as two grades Fenton sedimentation tanks 4140) flows out enters sand filter 4200, air reservoir 4300 supply the water in sand filter 4200 carries out filter sand to sand filter 4200, improve the water flowed out by advanced treatment system 60 Degree of purity.

Alternatively, as shown in Fig. 1, Fig. 5, Fig. 8 and Figure 10, advanced treatment system 60 also includes sulfuric acid storage tank 4400, sulphuric acid Ferrous iron solution tank 4500, hydrogen peroxide storage tank 4600 and Fenton flocculant tank 4700.

Sulfuric acid storage tank 4400 with in multiple Fenton's reaction chambeies 4111 in each described Fenton's reaction pond along at described waste water First on reason process orientation is connected, i.e. sulfuric acid storage tank 4400 and first Fenton's reaction chamber in one-level Fenton's reaction pond 4110 4111 and first Fenton's reaction chamber 4111 in two grades of Fenton's reaction ponds 4120 be connected, be used for providing sulphuric acid.Ferrous sulfate is molten Flow container 4500 with in multiple Fenton's reaction chambeies 4111 in each described Fenton's reaction pond along described waste water treatment process direction First be connected, i.e. first Fenton's reaction chamber 4111 in copperas solution tank 4500 and one-level Fenton's reaction pond 4110 with And first Fenton's reaction chamber 4111 in two grades of Fenton's reaction ponds 4120 is connected, it is used for providing ferrous sulfate.Hydrogen peroxide storage tank 4600 with along described waste water treatment process direction the in multiple Fenton's reaction chambeies 4111 in each described Fenton's reaction pond One is connected, i.e. first Fenton's reaction chamber 4111 in hydrogen peroxide storage tank 4600 and one-level Fenton's reaction pond 4110 and two grades of sweet smell First Fenton's reaction chamber 4111 of reaction tank 4120 is connected, and is used for providing hydrogen peroxide.Fenton flocculant tank 4700 is with each The Fenton flocculation chamber 4112 in described Fenton's reaction pond is connected, i.e. Fenton flocculant tank 4700 and the sweet smell in one-level Fenton's reaction pond 4110 The Fenton flocculation chamber 4112 in flocculation chamber 4112 and two grades of Fenton's reaction ponds 4120 is connected, and is used for providing flocculant.

And combine the Waste Water Treatment 1 of above-mentioned cellulose ethanol and describe according to this utility model real below with reference to the accompanying drawings Execute the method for wastewater treatment of the cellulose ethanol of example, process according to the waste water of the cellulose ethanol of this utility model embodiment Method comprises the following steps:

A: waste water is delivered to anaerobic fermentation reaction unit 10, carries out biodegradation to waste water under anaerobic environment.

B: the waste water flowed out by anaerobic fermentation reaction unit 10 is delivered to waste water dephosphorization reaction unit 20, at waste water dephosphorization Oxygen supply aeration in reaction unit 20, carries out aerobic biodegradation and dephosphorization to the waste water after biodegradation.

C: the waste water flowed out by waste water dephosphorization reaction unit 20 is delivered to denitrification reactor 40 is right at denitrification reactor 40 Waste water carries out denitrogenation.

D: the waste water flowed out by denitrification reactor 40 is delivered to advanced treatment system 60, is carried out the waste water after dephosphorization deeply Place processes, so that removal cannot biodegradable organic pollution further.

The method of wastewater treatment of the cellulose ethanol according to this utility model embodiment can simplied system structure, reduction Cost, raising COD treatment effect.

The method of wastewater treatment of the cellulose ethanol according to this utility model embodiment, carries out anaerobism to waste water successively and sends out Ferment purification, aeration dephosphorization, denitrogenation and advanced treating, it is possible to the COD in waste water is processed below 100mg/L, COD treatment effect Outstanding, and the structure of the Waste Water Treatment of cellulose ethanol can be simplified, reduce the waste water of cellulose ethanol and process and be The cost of system.

In specific embodiments more of the present utility model, in described step A, logical in anaerobic fermentation reaction unit 10 Enter the compressed biogas flowed from the bottom to top, so that waste water and mud are fully contacted.

Further, in described step A, utilize the precipitate and separate device 400 of anaerobic fermentation reaction unit 10, biology is dropped Waste water after solution is de-gassed precipitate and separate, and the waste water after degassed precipitate and separate is carried out described step B, to be removed into step Gas in waste water and solid before rapid B.

Alternatively, in described step B, it is passed through air to waste water dephosphorization reaction unit 20 and carries out aeration, and remove to waste water Magnesium oxide is added as dephosphorization oxidant, such as magnesium oxide in phosphorus reaction device 20.

In concrete examples more of the present utility model, described step C includes following sub-step:

C1: the waste water flowed out by waste water dephosphorization reaction unit 20 is delivered to the Anammox reaction of denitrification reactor 40 Device 2100, to carry out Anammox reaction to the waste water after aeration.

C2: the waste water flowed out by the anaerobic ammonia oxidation reactor 2100 of denitrification reactor 40 is delivered to denitrification reactor 40 The hypoxia response intracavity of Anoxic/Aerobic reaction tank 2200, with under anaerobic environment to through the reacted waste water of Anammox Carry out anti-nitration reaction.

C3: the waste water of the hypoxia response intracavity by the Anoxic/Aerobic reaction tank 2200 of denitrification reactor 40 is delivered to denitrogenation The aerobic reaction intracavity of the Anoxic/Aerobic reaction tank 2200 of reactor 40, to the waste water through anti-nitration reaction under aerobic environment Carry out nitration reaction.

In concrete examples more of the present utility model, after described step C, first the waste water after denitrogenation is carried out coagulation, Carry out described step D again.

In specific embodiments more of the present utility model, described step D includes following sub-step:

D1: the waste water flowed out from denitrification reactor 40 is delivered to one-level Fenton's reaction pond 4110, with to giving up after denitrogenation Water carries out one-level Fenton oxidation reaction；

D2: the waste water flowed out from one-level Fenton's reaction pond 4110 is delivered to one-level Fenton sedimentation tank 4130, fragrant in one-level The sedimentation tank 4130 that pauses is interior carries out one-level degassing precipitate and separate to the waste water reacted through one-level Fenton oxidation；

D3: the waste water flowed out by one-level Fenton sedimentation tank 4130 is delivered to two grades of Fenton's reaction ponds 4120, at two grades of sweet smell In reaction tank 4120 to through and the waste water of degassing precipitate and separate carry out two grades of Fenton oxidations reactions；

D4: the waste water flowed out by two grades of Fenton's reaction ponds 4120 is delivered to two grades of Fenton sedimentation tanks 4140, at two grades of sweet smell The sedimentation tank 4140 that pauses is interior carries out two grades of degassing precipitate and separate to through two grades of reacted waste water of Fenton oxidation；

D5: the waste water flowed out from two grades of Fenton sedimentation tanks 4140 is delivered to sand filter 4200, utilizes sand filter 4200 right Waste water after two grades of degassing precipitate and separate carries out sand filtration.

Alternatively, in described step D1, in the Fenton's reaction chamber 4111 in one-level Fenton's reaction pond 4110 add sulphuric acid, Ferrous sulfate and hydrogen peroxide are stirred, then in the Fenton flocculation chamber 4112 to one-level Fenton's reaction pond 4110, interpolation flocculant enters Row stirring.In described step D4, in the Fenton's reaction chamber 4111 in two grades of Fenton's reaction ponds 4120, add sulphuric acid, ferrous sulfate It is stirred with hydrogen peroxide, then in the Fenton flocculation chamber 4112 to two grades of Fenton's reaction ponds 4120, interpolation flocculant is stirred.

The Waste Water Treatment 1 of the cellulose ethanol according to this utility model embodiment and method of wastewater treatment, depend on The secondary waste water producing cellulose ethanol carries out anaerobic biodegradation, aeration dephosphorization, denitrogenation and advanced treating, it is possible to by waste water In COD process below 100mg/L, and simple in construction, low cost, floor space are little.And, implement according to this utility model The Waste Water Treatment 1 of the cellulose ethanol of example and technique, not only COD high treating effect, the removal effect of nitrogen phosphorus is also Good, such as, nitrogen can reach below 15mg/L, and phosphorus can reach below 0.5mg/L.

In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " suitable Hour hands ", the orientation of the instruction such as " counterclockwise " or position relationship be based on orientation shown in the drawings or position relationship, merely to just Describe in description this utility model and simplification rather than indicate or imply that the device of indication or element must have specific side Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that at least two, example Such as two, three etc., unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be It is mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands above-mentioned term concrete meaning in this utility model.

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it D score can include that the first and second features directly contact, it is also possible to includes that the first and second features are not directly contact but logical Cross the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First is special Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible Any one or more embodiments or example combine in an appropriate manner.Additionally, those skilled in the art can be by Different embodiments or example described in this specification engage and combine.

Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model In above-described embodiment can be changed, revise, replace and modification.

Claims (35)

1. the Waste Water Treatment of a cellulose ethanol, it is characterised in that include that waste water treatment process direction is sequentially connected with Anaerobic fermentation reaction unit, waste water dephosphorization reaction unit, denitrification reactor and advanced treatment system,

Wherein, described anaerobic fermentation reaction unit includes anaerobic fermentation tank body, stripping tube and air supply pipe, described anaerobic fermentation tank body Inside having anaerobic reaction room, described anaerobic reaction room has waste water inlet, outlet and air vent, and described stripping tube is located at described Anaerobic reaction is indoor, and the upper end of described stripping tube has the lower end of gas outlet and described stripping tube and has air inlet, described supply Pipe is connected with the air inlet of described stripping tube, for supply in described stripping tube for the gas of air stripping；

Described waste water dephosphorization reaction unit includes dephosphorization reacting tank body, aerator and degassing precipitate and separate device, and described dephosphorization is anti- Having dephosphorization reative cell in answering tank body, described dephosphorization reative cell has water inlet and dephosphorization agent adds mouth, and described aerator sets In described dephosphorization reative cell, described degassing precipitate and separate device is located in described dephosphorization reative cell and is positioned on described aerator Side, is used for separating gas and water and mud.

The Waste Water Treatment of cellulose ethanol the most according to claim 1, it is characterised in that under described stripping tube The bottom of the neighbouring described anaerobic reaction room of end and the upper end of described stripping tube extend to the top of described anaerobic reaction room, described in go out The mouth of a river is located at the top of described anaerobic reaction room and is higher than the upper end of described stripping tube.

The Waste Water Treatment of cellulose ethanol the most according to claim 1, it is characterised in that described stripping tube upper End face opens wide to form described gas outlet, and the lower surface of described stripping tube is opened wide to form described air inlet.

The Waste Water Treatment of cellulose ethanol the most according to claim 3, it is characterised in that described stripping tube includes The straight length vertically extended and the segmental arc being connected with the upper end of described straight length, the opening direction of described gas outlet with Angle between vertically downward direction is more than or equal to zero degree and less than 180 degree.

The Waste Water Treatment of cellulose ethanol the most according to claim 4, it is characterised in that described segmental arc is for falling U-shaped, the opening direction of described gas outlet is straight down.

The Waste Water Treatment of cellulose ethanol the most according to claim 1, it is characterised in that described stripping tube is many Individual and in horizontal plane interval arrange.

7. according to the Waste Water Treatment of the cellulose ethanol according to any one of claim 1-6, it is characterised in that described Anaerobic fermentation reaction unit also includes: precipitate and separate device, and described precipitate and separate device is located at described anaerobic reaction indoor and is positioned at institute Stating above stripping tube, described precipitate and separate utensil has the separator outlet and described outlet and institute being connected with described outlet The water inlet stating waste water dephosphorization reaction unit is connected.

The Waste Water Treatment of cellulose ethanol the most according to claim 7, it is characterised in that described precipitate and separate device Including:

Casing, is formed with degassing precipitation chamber in described casing, the bottom in described degassing precipitation chamber has sludge outlet, described degassing The cross-sectional area of the bottom in precipitation chamber is gradually reduced along direction from the top down；

Dividing plate, described dividing plate be located at described degassing precipitation chamber top, described dividing plate by described degassing precipitation chamber upper part every Becoming degassing district and settling zone, the bottom in described degassing district connects with the bottom of described settling zone so that waste water is from described anaerobic reaction Flow in described settling zone in room overflows to described degassing district and then from the bottom in described degassing district；

Precipitation inclined plate, described precipitation inclined plate is located in described settling zone；

Downflow weir, in described downflow weir is located at described settling zone and described downflow weir formed have described separator outlet overflow Chute.

The Waste Water Treatment of cellulose ethanol the most according to claim 8, it is characterised in that limit with described dividing plate The upper edge of the box portion going out described degassing district is less than the upper edge of described dividing plate and limits described settling zone with described dividing plate The upper edge of box portion.

The Waste Water Treatment of cellulose ethanol the most according to claim 9, it is characterised in that described casing is for long Cube, the lower end of the first longitudinal side wall of the bottom of described casing extends downward beyond the second longitudinal side wall of the bottom of described casing Lower end, and the lower end of described first longitudinal side wall is the most overlapping with the lower end of described second longitudinal side wall.

11. according to the Waste Water Treatment of the cellulose ethanol according to any one of claim 1-6, it is characterised in that institute Stating anaerobic fermentation reaction unit also to include: precipitate and separate device, described precipitate and separate device is located at that described anaerobic fermentation tank is external and institute Stating outlet to be connected with described waste water dephosphorization reaction unit by described precipitate and separate device, described precipitate and separate device includes:

Casing, forms degassing precipitation chamber in described casing, described degassing precipitation chamber has import, separator outlet and mud and goes out Mouthful, described import connects with described outlet, and described separator outlet is connected with described waste water dephosphorization reaction unit, described de- The bottom in gas precipitation chamber is formed as at least one conical cavity that cross-sectional area is gradually reduced, described mud along direction from the top down Outlet is formed at the bottom of described conical cavity；

Precipitation inclined plate, described precipitation inclined plate is located at described degassing precipitation intracavity；

Downflow weir, described downflow weir is formed and described separator water outlet in being located at described degassing precipitation intracavity and described downflow weir The overflow launder of mouth connection.

The Waste Water Treatment of 12. cellulose ethanol according to claim 11, it is characterised in that described anaerobic fermentation Reaction unit also includes: sinker, and described sinker is connected to the outlet of described anaerobic reaction room and described degassing precipitation chamber Import between.

The Waste Water Treatment of 13. cellulose ethanol according to claim 11, it is characterised in that described anaerobic fermentation Reaction unit also includes:

For the mud discharged from described sludge outlet being returned to the mud return line that described anaerobic reaction is indoor, described mud One end of return duct connects with described anaerobic reaction room, and described sludge outlet passes through mud discharge pipe and described mud return line phase Even, described mud return line is provided with sludge reflux pump.

The Waste Water Treatment of 14. cellulose ethanol according to claim 1, it is characterised in that described anaerobic fermentation Reaction unit also includes: water sealed tank, and the top of described anaerobic fermentation tank body is provided with safe QI KOU, and described safe QI KOU is with described Water sealed tank is connected.

The Waste Water Treatment of 15. cellulose ethanol according to claim 1, it is characterised in that described aerator There is spaced multiple aeration head or aeration tube.

The Waste Water Treatment of 16. cellulose ethanol according to claim 15, it is characterised in that described waste water dephosphorization Reaction unit also includes:

Multiple guide shells, the top and bottom of each described guide shell are the most unlimited, multiple described aeration heads or aeration tube respectively from Multiple described guide shell is stretched in the lower end of multiple described guide shells.

The Waste Water Treatment of 17. cellulose ethanol according to claim 1, it is characterised in that waste water dephosphorization reacts Device also includes:

It is located in described dephosphorization reative cell and is positioned at the water-locator below described aerator, described water-locator and described water inlet It is connected.

The Waste Water Treatment of 18. cellulose ethanol according to claim 17, it is characterised in that described water distribution utensil There are multiple water distribution mouths that interval is arranged and Open Side Down.

The Waste Water Treatment of 19. cellulose ethanol according to claim 1, it is characterised in that described dephosphorization is reacted Room has the discharge gate being positioned at described dephosphorization reacting tank body bottom.

The Waste Water Treatment of 20. cellulose ethanol according to claim 19, it is characterised in that waste water dephosphorization reacts Device also includes:

Cyclone, described cyclone has cyclone inlets, mud mouth and cyclone outlet, described cyclone inlets and described row Material mouth connection, described cyclone outlet is connected with described dephosphorization reative cell by return pipe.

The Waste Water Treatment of 21. cellulose ethanol according to claim 19, it is characterised in that described waste water dephosphorization Reaction unit also includes: pump and the desliming device being connected with pump, and the clear liquid after described desliming device removing mud returns to described Dephosphorization reative cell.

The Waste Water Treatment of 22. cellulose ethanol according to claim 19, it is characterised in that described waste water dephosphorization Reaction unit also includes: pump and the settler being connected with described pump, and the stillness of night after described settler precipitation returns to described Dephosphorization reative cell.

The Waste Water Treatment of 23. cellulose ethanol according to claim 1, it is characterised in that described degassing precipitates Separator includes:

Separator body, forms degassing mud chamber in described separator body, the bottom in described degassing precipitation chamber has mud row Mouthful, the cross-sectional area of the bottom in described degassing precipitation chamber is gradually reduced along direction from the top down；

Baffle plate, described baffle plate is located at the top of described degassing mud chamber, described baffle plate by the upper part of described degassing mud chamber every Becoming devolatilizing chamber and precipitation chamber, the bottom of described devolatilizing chamber connects so that waste water reacts from described dephosphorization with the bottom in described precipitation chamber Room overflows in described devolatilizing chamber and then flows to described precipitation intracavity from the bottom of described devolatilizing chamber；

Inclined settling plate or inclination precipitation tube, described inclined settling plate or inclination precipitation tube are located at described precipitation intracavity；

Effluent overflow weir water, described effluent overflow weir water is located at described precipitation intracavity and the formation of described effluent overflow weir water has anti-with denitrogenation Answer the water outlet overflow launder separating outlet that device connects.

The Waste Water Treatment of 24. cellulose ethanol according to claim 23, it is characterised in that limit with described baffle plate The upper edge of the separator body part making described devolatilizing chamber is less than the upper edge of described baffle plate and limits institute with described baffle plate State the upper edge of the separator body part in precipitation chamber.

The Waste Water Treatment of 25. cellulose ethanol according to claim 23, it is characterised in that described separator is originally The cross section of body is rectangle.

The Waste Water Treatment of 26. cellulose ethanol according to claim 23, it is characterised in that described separator is originally The lower end of the first longitudinal side wall of the bottom of body extends downward beyond the lower end of the second longitudinal side wall of the bottom of described separator body, And the lower end of described first longitudinal side wall is the most overlapping with the lower end of described second longitudinal side wall.

The Waste Water Treatment of 27. cellulose ethanol according to claim 1, it is characterised in that described waste water dephosphorization Reaction unit also includes: be located at described dephosphorization reacting tank body outside and the aeration pump being connected with described aerator or aeration wind Machine, described water inlet connects waste water control valve.

The Waste Water Treatment of 28. cellulose ethanol according to claim 1, it is characterised in that described dephosphorization is reacted The top of tank body is provided with top cover, and described dephosphorization agent adds mouth and is located on described top cover.

29. require the Waste Water Treatment of cellulose ethanol described in 1 according to claim, it is characterised in that described denitrogenation Reactor includes anaerobic ammonia oxidation reactor and the Anoxic/Aerobic reaction tank being connected to each other.

30. require the Waste Water Treatment of cellulose ethanol described in 1 according to claim, it is characterised in that also include mixing Solidifying reaction unit, described coagulation reaction device is connected between described denitrification reactor and described advanced treatment system, described mixed Solidifying reaction unit has coagulating basin, flocculation basin and the sedimentation tank being sequentially communicated along described waste water treatment process direction.

31. require the Waste Water Treatment of cellulose ethanol described in 1 according to claim, it is characterised in that the described degree of depth Processing system includes the many groups Fenton's reaction device being sequentially connected along described waste water treatment process direction, often group Fenton's reaction device Including Fenton's reaction pond and Fenton sedimentation tank.

32. require the Waste Water Treatment of cellulose ethanol described in 31 according to claim, it is characterised in that described in each There is the multiple Fenton's reaction chambeies being sequentially communicated along described waste water treatment process direction and Fenton flocculation chamber, often in Fenton's reaction pond Individual described Fenton's reaction intracavity is provided with the fast blender of Fenton and described Fenton flocculation intracavity is provided with the slow blender of Fenton, each described Fenton tilted plate separator and Fenton mud scraper it is provided with in Fenton sedimentation tank.

33. require the Waste Water Treatment of cellulose ethanol described in 31 according to claim, it is characterised in that the described degree of depth Processing system also includes:

Sand filter, described sand filter is connected with Fenton sedimentation tank last described along described waste water treatment process direction；

Air reservoir, described air reservoir is connected with described sand filter.

34. require the Waste Water Treatment of cellulose ethanol described in 31 according to claim, it is characterised in that described in multiple Fenton's reaction pond includes that one-level Fenton's reaction pond and two grades of Fenton's reaction ponds, multiple described Fenton sedimentation tanks include that one-level Fenton sinks Pond, shallow lake and two grades of Fenton sedimentation tanks, described one-level Fenton's reaction pond, described one-level Fenton sedimentation tank, described two grades of Fenton's reaction ponds It is sequentially connected with along described waste water treatment process direction with described two grades of Fenton sedimentation tanks.

35. require the Waste Water Treatment of cellulose ethanol described in 32 according to claim, it is characterised in that the described degree of depth Processing system also includes:

Sulfuric acid storage tank, in multiple Fenton's reaction chambeies in described sulfuric acid storage tank and each described Fenton's reaction pond along at described waste water First on reason process orientation is connected；

In multiple Fenton's reaction chambeies in copperas solution tank, described copperas solution tank and each described Fenton's reaction pond Along described waste water treatment process direction first is connected；

Hydrogen peroxide storage tank, described hydrogen peroxide storage tank and giving up along described in multiple Fenton's reaction chambeies in each described Fenton's reaction pond On water treatment technology direction first is connected；

Fenton flocculant tank, described Fenton flocculation tank is connected with the Fenton flocculation chamber in each described Fenton's reaction pond.