CN205838797U - 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 the anaerobic fermentation reaction unit being sequentially connected with along waste water treatment process direction, high load aeration tank, denitrification reactor, dephosphorizing reactor and advanced treatment system, wherein, described anaerobic fermentation reaction unit includes anaerobic fermentation tank body, stripping tube and air supply pipe, in described anaerobic fermentation tank body, there is anaerobic reaction room, described anaerobic reaction room has waste water inlet, outlet and air vent, it is indoor that described stripping tube is located at described anaerobic reaction, the upper end of described stripping tube has the lower end of gas outlet and described stripping tube and has air inlet, described air supply pipe is connected with the air inlet of described stripping tube, for supply in described stripping tube for the gas of air stripping.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 treatment effect is the best, there is the demand of improvement.

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 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: the anaerobic fermentation reaction unit that is sequentially connected with along waste water treatment process direction, High load aeration tank, denitrification reactor, dephosphorizing reactor and advanced treatment system, wherein, described anaerobic fermentation reaction unit bag Include anaerobic fermentation tank body, stripping tube and air supply pipe, there is in described anaerobic fermentation tank body anaerobic reaction room, described anaerobic reaction room Having waste water inlet, outlet and air vent, it is indoor that described stripping tube is located at described anaerobic reaction, the upper end tool of described stripping tube The lower end having gas outlet and described stripping tube has air inlet, and described air supply pipe is connected with the air inlet of described stripping tube, is used for In described stripping tube, supply is for the gas of air stripping.

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 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 in, described segmental arc is inverted U-shaped, the opening direction of described gas outlet erect Straight downward.

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 described high load aeration tank.

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 and is exposed with described high load capacity by described precipitate and separate device Gas pond is connected, and described precipitate and separate device includes: casing, forms degassing precipitation chamber in described casing, and described degassing precipitation chamber has Import, separator outlet and sludge outlet, described import connects with described outlet, described separator outlet and described height Rate aeration pond is connected, the bottom in described degassing precipitation chamber be formed as cross-sectional area be gradually reduced along direction from the top down to A few conical cavity, described sludge 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 with described in being located at described degassing precipitation intracavity and described downflow weir The overflow launder of separator outlet connection.

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 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, described dephosphorizing reactor includes: coagulation reaction tank, described coagulating There is in pond the dephosphorization reaction chamber being connected with described denitrification reactor and the dephosphorization flocculation chamber being connected with described dephosphorization reaction chamber, institute It is provided with the fast blender of dephosphorization in stating dephosphorization reaction chamber and described dephosphorization flocculation intracavity is provided with the slow blender of dephosphorization；Dephosphorization sedimentation tank, Described dephosphorization sedimentation tank is connected with described dephosphorization flocculation chamber and described advanced treatment system respectively, is provided with in described dephosphorization sedimentation tank Dephosphorization tilted plate separator and dephosphorization mud scraper.

According to an embodiment of the present utility model, described dephosphorizing reactor also includes: ferric sulfate solution flow container, described sulphuric acid Ferrous solution tank is connected with described dephosphorization reaction chamber；Phosphate eliminating flocculant tank, described phosphate eliminating flocculant tank and described dephosphorization flocculation chamber phase Even.

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.

According to an embodiment of the present utility model, described dephosphorizing reactor and described advanced treatment system share same wadding Solidifying agent tank.

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 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. 4 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. 5 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. 6 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. 7 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.

Fig. 8 is that the structure of the Waste Water Treatment of the cellulose ethanol according to this utility model the 3rd 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 3rd alternative embodiment is sent out The structural representation of ferment reaction unit.

Reference:

The Waste Water Treatment 1 of cellulose ethanol,

Anaerobic fermentation reaction unit 10, high load aeration tank 30, denitrification reactor 40, dephosphorizing reactor 50, advanced treating 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,

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

Coagulation reaction tank 3100, dephosphorization reaction chamber 3110, dephosphorization flocculation chamber 3120, the fast blender of dephosphorization 3111, dephosphorization are slow Blender 3112, dephosphorization sedimentation tank 3200, dephosphorization tilted plate separator 3210, dephosphorization mud scraper 3220, ferric sulfate solution flow container 3300, Phosphate eliminating flocculant tank 3400,

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.

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 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 shown in Fig. 1-Fig. 9, include detesting according to the Waste Water Treatment 1 of the cellulose ethanol of this utility model embodiment Aerobe fermentation reaction unit 10, high load aeration tank 30, denitrification reactor 40, dephosphorizing reactor 50 and advanced treatment system 60.

Anaerobic fermentation reaction unit 10, high load aeration tank 30, denitrification reactor 40, dephosphorizing reactor 50 and advanced treating System 60 is sequentially connected with along waste water treatment process direction.

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.

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 → high load aeration tank, 30 → denitrification reactor, 40 → dephosphorizing reactor, 50 → 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 enters high load aeration tank 30, useless Water carries out aerobic biodegradation in high load aeration tank 30 further, and the waste water after aerobic biodegradation is transported to denitrogenation Reactor 40 carries out denitrogenation, and the waste water after denitrogenation enters dephosphorizing reactor 50 and carries out dephosphorization, and waste water enters depth after dephosphorization Reason system 60, cannot biodegradable organic pollution in waste water with further removal.

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 that process orientation is sequentially connected with, high load aeration tank 30, denitrification reactor 40, dephosphorizing reactor 50 With advanced treatment 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.

On the other hand, by arranging stripping tube 200, can cancel air floating structure and motor that air floating structure need to be equipped with and Agitating element, simplifies the structure of anaerobic fermentation reaction unit 10, reduces the cost of anaerobic fermentation reaction unit 10.

Additionally, eliminate flotation cell and flotation cell need according to the anaerobic fermentation reaction unit 10 of this utility model embodiment The motor being equipped with and cleaning element, further simplify the structure of anaerobic fermentation reaction unit 10, and reduce further anaerobism The cost of fermentation reaction device 10.

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 shown in Fig. 1-Fig. 9, include edge according to the Waste Water Treatment 1 of the cellulose ethanol of this utility model embodiment Waste water process direction be sequentially connected with anaerobic fermentation reaction unit 10, high load aeration tank 30, denitrification reactor 40, dephosphorization reaction Device 50 and advanced treatment system 60.

Advantageously, as shown in Fig. 2, Fig. 4, Fig. 7 and Fig. 9, the lower end of stripping tube 200 adjacent to the bottom of anaerobic reaction room 110, And the upper end of stripping tube 200 extends to the top of anaerobic reaction room 110, outlet 112 be located at anaerobic reaction room 110 top and Upper end higher than stripping tube 200.The gas that air supply pipe 300 provides is by stripping tube 200, by the bottom quilt of anaerobic reaction room 110 It is delivered to the top of anaerobic reaction room 110, and exports from gas outlet 221 with dirty to the waste water in anaerobic reaction room 110 and anaerobism 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 can enter one Step improves stirring scope and the mixing effect of stripping tube 200, and the gas exported by stripping tube 200 is without interference with outlet 112 Water outlet.

Alternatively, as shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 9, the upper surface of stripping tube 200 is opened wide to form gas outlet 221, gas The lower surface carrying pipe 200 is opened wide to form air inlet 211, so can increase air inlet 211 and gas outlet 221 to greatest extent Valid circulation area, 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. 4, Fig. 7 and Fig. 8, stripping tube 200 wraps Include 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 figures 4 and 9, segmental arc 220 is inverted U-shaped, and the opening direction of gas outlet 221 straight down, changes Yan Zhi, α=0 °.The gas so exported by stripping tube 200 stirs downwards waste water from the top of anaerobic reaction room 110 and anaerobism is dirty 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 4, 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, outlet 112 is connected with high load aeration tank 30.Purify through anaerobic fermentation After waste water outflow in precipitate and separate device 400, thus gas separates with water and anaerobic sludge, and the gas after separation is by air vent 113 discharge, and then, water separates with anaerobic sludge, and the anaerobic sludge after separation returns to anaerobic reaction room from precipitate and separate device 400 Recycling in 110, the water separator outlet 413 after separation is transported to outlet 112, discharges anaerobic reaction room 110 also It is delivered to high load aeration tank 30.

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 figure 5, 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. 3, 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 figure 5, 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 figure 5, 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 7 and 9, 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 high load aeration tank 30, and precipitate and separate device 400 includes casing 410, precipitation inclined plate 430 and downflow 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, separator outlet 413 and high load capacity aeration Pond 30 is connected, and at least one conical cavity is formed at the bottom in degassing precipitation chamber 411, and the cross-sectional area of each conical cavity is along from the top down Direction be gradually reduced, sludge outlet 412 is formed at the bottom of described conical cavity.Precipitation inclined plate 430 is located at degassing precipitation chamber 411 In.Downflow weir 440 is located in degassing precipitation chamber 411, and is formed with connect with separator outlet 413 excessive in downflow weir 440 Stream weir 440.

Below with reference to Fig. 4 and Fig. 5, 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 7 and 9, anaerobic fermentation reaction unit 10 also includes sinker 500, and sinker 500 is even 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 7 and 9, 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 it is shown in figure 9, 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 7 and 9, waste water inlet 111 connects has charging pump 117, to control whether to anaerobic reaction 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 position Gas control valve 118 outside anaerobic reaction room 110, to control whether to supply to stripping tube 200 and to the confession of stripping tube 200 Tolerance.

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. 4, Fig. 7 and Fig. 8, 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 shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 8, 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 high load aeration tank 30, Anoxic/Aerobic reaction tank 2200 and dephosphorizing reactor 50 phase Even, high load aeration tank 30 waste water flowed out flows through anaerobic ammonia oxidation reactor 2100 and Anoxic/Aerobic reaction tank 2200 successively Carry out denitrogenation processing.

In concrete examples more of the present utility model, as shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 8, dephosphorizing reactor 50 includes Coagulation reaction tank 3100 and dephosphorization sedimentation tank 3200.

Have in coagulation reaction tank 3100 the dephosphorization reaction chamber 3110 being connected with denitrification reactor 40 and with dephosphorization reaction chamber The dephosphorization flocculation chamber 3120 that 3110 are connected, is provided with the fast blender of dephosphorization 3111 and dephosphorization flocculation chamber 3120 in dephosphorization reaction chamber 3110 Inside it is provided with the slow blender of dephosphorization 3112.Need exist for being appreciated that, the fast blender of dephosphorization 3111 and the slow blender of dephosphorization 3112 Speed is comparatively speaking, and i.e. the rotating speed of the fast blender of dephosphorization 3111 is higher than the rotating speed of the slow blender of dephosphorization 3112.Dephosphorization sedimentation tank 3200 are connected with dephosphorization flocculation chamber 3120 and advanced treatment system 60 respectively, are provided with dephosphorization sloping plate deposition in dephosphorization sedimentation tank 3200 Device 3210 and dephosphorization mud scraper 3220.The waste water flowed out by denitrification reactor 40 flows through dephosphorization reaction chamber 3110, dephosphorization wadding successively Solidifying chamber 3120 and dephosphorization sedimentation tank 3200, and carry out dephosphorization, flocculation and solid-liquor separation.

Alternatively, as shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 8, dephosphorizing reactor 50 also includes ferric sulfate solution flow container 3300 and removes Phosphorus flocculant tank 3400.Ferric sulfate solution flow container 3300 is connected with dephosphorization reaction chamber 3110, for supplying to dephosphorization reaction chamber 3110 Ferrum sulfuricum oxydatum solutum is to carry out dephosphorization.Phosphate eliminating flocculant tank 3400 is connected with dephosphorization flocculation chamber 3120, for dephosphorization flocculation chamber 3120 supply flocculant.

Those skilled in the art is it will be understood that ferric sulfate solution flow container 3300 can also be for be used for storing other can Make the NaOH solution tank NaOH of the chemical substance of calcium phosphate precipitation, such as polyaluminium sulfate NaOH solution tank NaOH.

In specific embodiments more of the present utility model, as shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 8, 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 dephosphorizing reactor 50 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. 3, Fig. 6 and Fig. 8, 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. 3, Fig. 6 and Fig. 8, 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. 3, Fig. 6 and Fig. 8, advanced treatment system 60 also includes that sulfuric acid storage tank 4400, sulphuric acid are sub- Ferrous 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.

Advantageously, as shown in Fig. 1, Fig. 3, Fig. 6 and Fig. 8, dephosphorizing reactor 50 and advanced treatment system 60 share same wadding Solidifying agent tank, i.e. phosphate eliminating flocculant tank 3400 and Fenton flocculant tank 4700 can be same tank body.Thus can simplify further The structure of the Waste Water Treatment 1 of cellulose ethanol, reduces the one-tenth of the Waste Water Treatment 1 of cellulose ethanol further This.

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 high load aeration tank 30, at high load aeration tank To the waste water oxygen supply aeration after anaerobic biodegradation in 30, carry out aerobic biodegradation.

C: the waste water flowed out by high load aeration tank 30 is delivered to denitrification reactor 40, with right in denitrification reactor 40 Waste water after aerobic biodegradation carries out denitrogenation.

D: the waste water flowed out by denitrification reactor 40 is delivered to dephosphorizing reactor 50, to denitrogenation in dephosphorizing reactor 50 After waste water carry out dephosphorization.

E: the waste water flowed out by dephosphorizing reactor 50 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, carries out anaerobism to waste water successively and sends out Ferment purification, high load capacity aeration, denitrogenation, dephosphorization and advanced treating, it is possible to the COD in waste water is processed below 100mg/L, COD Treatment effect is outstanding, and can simplify the structure of the Waste Water Treatment of cellulose ethanol, reduces the useless of cellulose ethanol The cost of water treatment 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, described step C includes following sub-step:

C1: the waste water flowed out by high load aeration tank 30 is delivered to the anaerobic ammonia oxidation reactor of denitrification reactor 40 2100, so that the waste water after aeration is carried out Anammox reaction.

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, described step D includes following sub-step:

D1: the waste water flowed out by denitrification reactor 40 is delivered to the coagulation reaction tank 3100 of dephosphorizing reactor 50, is removing In phosphorus reaction chamber 3110, the waste water after denitrogenation is carried out dephosphorization, in dephosphorization flocculation chamber 3120, the waste water after dephosphorization is wadded a quilt with cotton Solidifying；

D2: the waste water flowed out by dephosphorization flocculation chamber 3120 is delivered to dephosphorization sedimentation tank 3200, to be de-gassed waste water Precipitate and separate.

Alternatively, in described step D1, in dephosphorization reaction chamber 3110, add iron sulfate be stirred, thus to waste water Carry out dephosphorization, then interpolation flocculant is stirred, to flocculate in dephosphorization flocculation chamber 3120.

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

E1: the waste water flowed out from dephosphorization sedimentation tank 3200 is delivered to one-level Fenton's reaction pond 4110, after to denitrogenation Waste water carries out one-level Fenton oxidation reaction；

E2: 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；

E3: 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；

E4: 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；

E5: 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 E1, 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 E4, 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, aerobic biodegradation, denitrogenation, dephosphorization and advanced treating, COD in waste water can process below 100mg/L, and simple in construction, low cost, floor space are little.

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 (10)

1. the Waste Water Treatment of a cellulose ethanol, it is characterised in that include connecting successively along waste water treatment process direction Anaerobic fermentation reaction unit, high load aeration tank, denitrification reactor, dephosphorizing reactor and the advanced treatment system connect,

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.

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.

The Waste Water Treatment of cellulose ethanol the most according to claim 1, it is characterised in that described anaerobic fermentation is anti- Answering device also to include: precipitate and separate device, described precipitate and separate device is located at described anaerobic reaction indoor and is positioned on described stripping tube Side, described precipitate and separate utensil has the separator outlet being connected with described outlet and described outlet to expose with described high load capacity Gas pond 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.