CN206666329U - Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton - Google Patents

Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton Download PDF

Info

Publication number
CN206666329U
CN206666329U CN201720294346.6U CN201720294346U CN206666329U CN 206666329 U CN206666329 U CN 206666329U CN 201720294346 U CN201720294346 U CN 201720294346U CN 206666329 U CN206666329 U CN 206666329U
Authority
CN
China
Prior art keywords
waste water
fluidized bed
biological
bed
fenton
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720294346.6U
Other languages
Chinese (zh)
Inventor
金建祥
韩香云
潘梅
李朝霞
孙浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangcheng Institute of Technology
Yancheng Institute of Technology
Original Assignee
Yangcheng Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangcheng Institute of Technology filed Critical Yangcheng Institute of Technology
Priority to CN201720294346.6U priority Critical patent/CN206666329U/en
Application granted granted Critical
Publication of CN206666329U publication Critical patent/CN206666329U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Physical Water Treatments (AREA)

Abstract

The utility model discloses a kind of Waste Water Treatment biological reinforced based on photoelectricity Fenton, and it includes preaeration tank (1), photoelectricity Fenton reactor (2), degassing neutralization pond (3), coagulative precipitation tank (4), regulating reservoir (5), microencapsulation biological fluidized bed (6) and the immobilized biological activated carbon bed (7) being sequentially connected through water pipe.The utility model is reasonable in design, easy to operate, and operating efficiency is high; cost is low; good waste water treatment effect, by materializing strategy, biochemical treatment and ensure that processing organically combines in order, photoelectricity Fenton reactor, microencapsulation biological fluidized bed and immobilized biological activated carbon bed are functionally mutually supported; mutually promote; 98% is higher than to the characteristic organic pollutants removal efficiency of difficult degradation, sludge yield is few, and Treatment of Sludge expense is low; good sewage processing effect, have great importance to environmental protection.

Description

Waste Water Treatment based on photoelectricity Fenton-biological reinforced
Technical field
It the utility model is related to a kind of wastewater treatment equipment, and in particular to a kind of useless based on photoelectricity Fenton-biological reinforced Water treatment system, belong to technical field of waste water processing.
Background technology
Wastewater from chemical industry have water quantity and quality change greatly, biodegradability is poor, be difficult to the feature degraded and pollutant complexity is more The features such as sample, appropriate preprocess method is typically taken according to the water quality of actual waste water, such as flocculation, light electrolysis, absorption, photocatalysis Etc. technique, destroy hardly degraded organic substance in waste water, improve the biodegradability of waste water, then be combined biological method and wastewater from chemical industry is carried out Processing.
From the point of view of existing Patent data, Chinese patent " a kind of multiple oxidation treatment method of waste water and device " (CN106145483A) a kind of multiple oxidation treatment method of waste water and device, the disclosed multiple oxidation treatment method of waste water are disclosed Comprise the following steps:Waste water carries out anode electrocatalytic oxidation in neutral conditions;Fenton oxidation is carried out in acid condition;Part The waste water of discharge, which is flow under neutrallty condition, carries out cathodic oxygen reduction;These reactions are carried out under ultrasound condition.Chinese patent " one The synthesis apparatus for physical Chemical treating of kind high-concentration hardly-degradable industrial wastewater " (CN203602439U) discloses a kind of processing unit, wraps Include the regulating reservoir being sequentially connected by pipeline, one-level micro-electrolysis device, one-level light radiation Fenton catalysis oxidation linkage, two level Micro-electrolysis device, two level light radiation Fenton catalysis oxidation linkage, three-level micro-electrolysis device, microfiltration ceramic membrane component, activity Charcoal adsorption tanks, carbon mineral wool polymerization pellet adsorption tanks, ultrafiltration apparatus, reverse osmosis unit;The light radiation Fenton catalysis oxidation connection Quartz burner is provided with inside dynamic device;The absorbent charcoal adsorption tank is internally provided with ultrasonic wave transmitting tube.Above-mentioned patent uses Multiple to aoxidize repeatedly, process route is complicated, does not consider biological treatment and the optimization function that follow-up process may play.
Chinese patent " a kind of baffled reactor and its method (CN200610012070) for handling sewage " and " integral type High concentrated organic wastewater processing unit (CN200310100513.1) " is related to anaerobic processes and more secondary couplings of aerobic process, increases Add the complexity of equipment and the difficulty of operational management, and there is no advanced oxidation processes.
It is tediously long process route complexity to be present in the combined treatment process of existing wastewater from chemical industry, and combination mechanism is chaotic, difficult degradation Characteristic organic pollutant removal it is inefficient, process operation is unstable, it is impossible to the problems such as meeting environmental requirement.
Utility model content
Purpose of utility model:The purpose of this utility model is to solve the deficiencies in the prior art, there is provided a kind of structure is set Meter is reasonable, easy to operate, and operating efficiency is high, and cost is low, the waste water based on photoelectricity Fenton-biological reinforced of good waste water treatment effect Processing system.
Technical scheme:In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
Waste Water Treatment based on photoelectricity Fenton-biological reinforced, it includes preaeration tank, the light being sequentially connected through water pipe Electro-Fenton reactor, degassing neutralization pond, coagulative precipitation tank, regulating reservoir, microencapsulation biological fluidized bed and immobilized biological activated carbon Bed.
Preferably, it is above-described based on photoelectricity Fenton-biological reinforced Waste Water Treatment, described photoelectricity It is provided with Fenton reactor and carries TiO2The anode of coating and the negative electrode of active carbon fiber felt, the plate spacing between anode and negative electrode For 4~6cm, the voltage control between negative electrode and anode is 15V, 50~60mA/cm of current density2, apply ultraviolet source, with sun Pole is irradiated in 45° angle, forms photoelectricity Fenton's reaction system.Waste water first after preaeration, into photoelectricity Fenton reactor, is used first The pH of sulfuric acid regulation waste water is 3~4, then adds FeSO4, it is then electrified to start to be electrolysed;While electrolysis, entered with ultraviolet light Row irradiation, occurs photoelectricity Fenton's reaction, promotes organic matter degradation mineralising;The light source of ultraviolet light is using the high-strength middle pressure mercury of 250W Lamp, uviol lamp group exposure intensity 40-80MJ/m2, its radiation wave band is in 230~320nm.
Further, wastewater from chemical industry wastewater of chemical industry with high concentration water quality index:COD is 5000~10000mg/L, SS 150 ~300mg/L, chlorobenzene class are 80~100mg/L, and nitrobenzene is 80~100mg/L;The bottom of described regulating reservoir is provided with micro- Hole aerator, adjust the water quality and quantity of waste water;Water quality index after adjusted:COD is 2000~4000mg/L, SS 150 ~300mg/L, chlorobenzene class are 10~15mg/L, and nitrobenzene is 10~15mg/L.
Preferably, the above-described Waste Water Treatment based on photoelectricity Fenton-biological reinforced, ultraviolet source For the high-strength medium pressure mercury lamps of 250W, uviol lamp group exposure intensity is 40-80MJ/m2, radiation wave band is 230~320nm.
Preferably, the above-described Waste Water Treatment based on photoelectricity Fenton-biological reinforced, under regulating reservoir Portion is provided with microporous aeration device, adjusts the water quality and quantity of waste water.
Preferably, the above-described Waste Water Treatment based on photoelectricity Fenton-biological reinforced, microencapsulation biological Fluid bed is anaerobic fluidized bed and aerobic fluidized bed using single-cylinder type, it is anaerobic fluidized bed and it is aerobic fluidized bed it is interior be provided with microcapsules, it is micro- High-efficiency activated sludge or efficient degrading bacteria are embedded with capsule;
Anaerobic fluidized bed and aerobic fluidized bed reactor body is reaction zone, and the two is separated by lucite, The ratio of height to diameter of the anaerobic fluidized bed and aerobic fluidized bed reactor body of single-cylinder type is respectively less than 2, and aerobic part cumulative volume is anaerobism 1.5~2 times of part cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, drives microbial capsules to be in fluidisation using current State;Waste water in anaerobic fluidized bed flows directly into aerobic fluidized bed;Aeration plate is provided with aerobic fluidized bed body, is driven with air-flow Microbial capsules are in fluidisation state.
Method of wastewater treatment provided by the utility model based on photoelectricity Fenton-biological reinforced, it comprises the following steps:
A, waste water is first input to preaeration tank through pump, be oxygenated and quenched;
B, preaeration tank water outlet enters photoelectricity Fenton reactor, under ultraviolet light, carries out electric Fenton oxidation reaction, goes Except most organic pollution, H is separately added into photoelectricity Fenton reactor by medicine system2SO4Solution and FeSO4It is molten Liquid;
C, the water outlet of photoelectricity Fenton reactor enters degassing neutralization pond, sloughs a small amount of gas by stirring, adds NaOH solution, Adjust the pH value of waste water;
D, degassing neutralization pond water outlet enters coagulative precipitation tank, adds coagulant by coagulant medicine system, and control and stir Mix speed and form big flco;Sediment fraction is entered back into, the big flco of formation realizes precipitation separation, precipitation dirt in settling zone Mud is handled through sludge treating system;
E, the high-concentration waste water by the neutralization pond pretreatment that deaerates enters regulating reservoir, while can import low concentration wastewater and adjust Pond is saved, the bottom of regulating reservoir is provided with microporous aeration device, regulating water quality water;
F, adjusted rear waste water is conveyed into microencapsulation biological fluidized bed by intake pump, microencapsulation biological fluidized bed to use monotubular Formula is anaerobic fluidized bed and single-cylinder type is aerobic fluidized bed, anaerobic fluidized bed and aerobic fluidized bed interior be provided with microcapsules, the interior bag of microcapsules It is embedded with high-efficiency activated sludge or efficient degrading bacteria;
Anaerobic fluidized bed and aerobic fluidized bed reactor body is reaction zone, and the two is separated by lucite, Single-cylinder type is anaerobic fluidized bed and the ratio of height to diameter of the aerobic fluidized bed reactor body of single-cylinder type is respectively less than 2, aerobic part cumulative volume For 1.5~2 times of anaerobic part cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, is driven using current at microbial capsules In fluidisation state;Waste water in anaerobic fluidized bed flows directly into aerobic fluidized bed;Aeration plate is provided with aerobic fluidized bed body, with gas Stream drives microbial capsules to be in fluidisation state;Microcapsules can be according to the size of current or air-flow in anaerobic fluidized bed and aerobic stream It is upper and lower in the reactor body of change bed to circulate processing waste water;
G, microencapsulation biological fluidized bed water outlet enters immobilized biological activated carbon bed through infusion, and efficient degrading bacteria is fixed on Determine metaplasia thing it is active-carbon bed in activated carbon on, and in the water inlet of immobilized biological activated carbon bed, intermittently add ozone, and lead to The microporous aeration device for crossing bottom is aerated, and removes part COD and organic pollution in waste water, and described immobilization biological is lived Property charcoal bed in using activated carbon as filler, hydraulic detention time is 30~60min, and filtering velocity is 2.0~2.5m/h, through immobilization Biological activated carbon bed processed waste water qualified discharge.
Further, using biotechnology, screening, tame and construct can be in degraded characteristic organic pollutants Dominant microflora;The bio-microcapsule for being embedded into efficient degrading bacteria (for degraded characteristic organic pollutants) using microcapsules technology In, microcapsules have suitable density, can be circulated up and down in the reactor according to the size of current or air-flow;Microencapsulation Biological fluidized bed, it is 10~15kgCOD/ (m that it, which designs volumetric loading,3·d)。
Further, it is microencapsulation biological fluidized bed that anaerobic ammonium oxidizing bacteria is embedded in microcapsules, in microencapsulation biological stream Change and cultivated in bed, the C/N that technique is suitable to handle high nitrogen can be made than relatively low industrial wastewater.
Further, using biotechnology, screening, tame and construct can be in degraded characteristic organic pollutants Dominant microflora;The dominant microflora after culture is will be enlarged by using the physisorphtion of intermittent cycle to fix on the activated carbon, is formed Immobilized biological activated carbon, ozone oxidation are treated as the workshop section of checking on of group technology with immobilized biological activated carbon bed.
The utility model groundwork process is as follows.
1st, the basic process of photoelectricity Fenton is as follows
The pending present preaeration tank of waste water carries out oxygenation processing, and ultraviolet light is introduced into electricity sweet smell in photoelectricity Fenton reactor Pause and react, oxygen in water produces hydrogen peroxide in carbon cathode surface reduction, can be sent out with the ferrous ion in water or iron ion Raw reaction produces hydroxyl radical free radical, and hydroxyl radical free radical, synergistic oxidation degraded organic contamination can be also produced under ultraviolet radiation Thing, and ultraviolet light can promote iron ion photoreduction to generate ferrous ion, promote the progress of Fenton's reaction.Photoelectricity simultaneously It is provided with Fenton reactor and carries TiO2The anode of coating and the negative electrode of active carbon fiber felt.With TiO2The anode of coating is in purple Catalysed oxidn is had under outer light radiation, electricity be present come characteristic organic pollutants of degrading, on the negative electrode of active carbon fiber felt inhales Attached effect.Electricity-Fenton combines electrochemical process and Fenton oxidation process, takes full advantage of the oxidability of the two.Electricity Fenton technologies are relative to be had the following advantages that with traditional Fenton:(1) H is automatically generated2O2Mechanism it is more perfect;(2) it is gathered in the moon Oxygen or air on extremely can improve the mixing effect of reaction solution;(3)Fe2+Can be few by cathode regenerative, sludge constant;(4) have Machine thing degradation factors are more, hydroxyl radical free radical OH indirect oxidation, the direct oxidation of anode, electric coagulation and electric flocculation.Ultraviolet Light is introduced Fenton reagent the shortcomings that can overcoming common Fenton reagent, and also referred to as light helps Fenton methods, UV/Fenton methods, It is not common Fenton and UV/H2O2It is simple compound:(1)Fe3+And Fe2+Good circular response can be kept, improves biography The efficiency for Fenton reagent of uniting;(2) ultraviolet light and Fe2+To H2O2There is cooperative effect in catalytic decomposition, this is mainly due to iron Some hydroxo complexes can occur caused by Photosensitive reaction generation OH;(3) make mineralization of organic material degree more abundant;(4) it is organic Thing can Partial digestion under action of ultraviolet radiation.Electricity-Fenton helps Fenton not contradictions with light, merges into each other on the contrary, promotes oxygen Change degraded.Therefore the utility model adds photoelectricity Fenton reactor in processing system, the Fenton's reaction under photoelectric-synergetic oxidation, Electrolysis, photocatalytic oxidation, Electro Sorb effect, electroxidation effect, Fenton oxidation effect etc., the drop such as organic matter are integrated It is good to solve effect.
2nd, microencapsulation biological fluidized bed groundwork process is as follows:
Biological fluidized bed sewage treatment process is to be combined traditional activated sludge process and biomembrance process and introduce chemical industry stream State technology is applied to a kind of new bio processing unit of sewage disposal.It has that treatment effeciency is high, volumetric loading is big, anti-impact Hit strong ability, facility compact, take up an area the advantages that few.
It is microencapsulation biological fluidized bed that there is the composite biological fluidized-bed structure of single-cylinder type Aerobic-anaerobic.Prior art has been developed Various aerobic formulas, anaerobical and aerobic-anaerobic composite type biological fluidized bed be double-barrel structure, i.e., it is embedding inside reactive agent Inner circulating reflux pipe or stripping tube are cased with, to increase three phase separation effect, has often used larger draw ratio.Book is practical new The biological fluidized bed that type uses is single-cylinder type, low draw ratio (H/D=1~2) reactive agent container so that in identical volume Under, the other biological fluidized beds developed have bigger dischargeable capacity.Microencapsulation (microencapsulation) technology and biological fluidized bed Technology is combined.High-efficiency activated sludge or efficient degrading bacteria are embedded into the bio-microcapsule of particular size using microcapsules technology In, microcapsules have suitable density, can be circulated up and down in the reactor according to the size of current or air-flow.Microcapsules With suitable mechanical intensity, the effects such as impact of the fluid to it, shearing can be born in a long time.Microcapsules have suitable Permeability, it is ensured that under aerobic condition it is various degraded substrates and freeing in and out for metabolite and microorganism is fixed it In.The other biological fluidized beds developed save sizable three phase separation volume, while reduce sludge to greatest extent Yield.Microcapsules easily can add and reclaim according to reaction needs, reduce environmental pollution.
Waste water is conveyed into microencapsulation biological fluidized bed by intake pump after adjusted, compound micro- using single-cylinder type anaerobic-aerobic Encapsulated biological fluidized bed;The reactor body of anaerobic and aerobic fluid bed is reaction zone, is separated by lucite, and high Footpath ratio is less than 2, and aerobic part cumulative volume is 1.5~2 times of anaerobic part cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, Microbial capsules are driven to be in fluidisation state using current;Waste water in anaerobic fluidized bed flows directly into aerobic fluidized bed;Aerobic stream Change bed body with anaerobic fluidized bed similar, substitute water-locator with aeration plate, drive microbial capsules to be in fluidisation state with air-flow.Adopt With biotechnology, screening, tame and construct can be in the dominant microflora of degraded characteristic organic pollutants;Using microcapsules In the bio-microcapsule that efficient degrading bacteria is embedded into by technology (for degraded characteristic organic pollutants).Microcapsules have suitable Density, it can be circulated up and down in the reactor according to the size of current or air-flow;Microencapsulation biological fluidized bed, it, which is designed, holds Product load is 10~15kgCOD/ (m3·d).It can also be trained in microcapsule embedded anaerobic ammonium oxidizing bacteria in fluid bed Support, the C/N that technique is suitable to handle high nitrogen can be made than relatively low industrial wastewater.
3rd, the groundwork process of immobilized biological activated carbon bed is as follows:
Immobilized biological activated carbon technique, the technique pass through strain, bacterium amount and the advantage adhered on manual control activated carbon The formation of flora, removal of the oxygen realization of flora abundance on air supply activated carbon to object is passed through in reactor bottom, And increase interval and add ozone, to increase degradation of the immobilized biological activated carbon bed to characteristic organic pollutants.Solid Determine metaplasia thing it is active-carbon bed in, the dominant microflora of degradation of organic substances is fixed on activated carbon, is improved biological treatment efficiency, is prolonged The service life of long acting charcoal, reduce many advantages, such as labor intensity so that technique provided by the utility model has significant Economic benefit, social benefit and environmental benefit.Using biotechnology, screening, tame and construct can be in degraded feature The dominant microflora of organic pollution;The dominant microflora that be will be enlarged by using the physisorphtion of intermittent cycle after culture is fixed on work Property charcoal on, form immobilized biological activated carbon, ozone oxidation and immobilized biological activated carbon bed are treated as the handle of group technology Close workshop section.
Process of the present utility model is suitable for the industry of the organic properties pollutant containing difficult degradation such as wastewater from chemical industry The processing of waste water, total removal rate >=98% of COD and the organic pollution of difficult degradation in waste water, effluent quality can meet in environmental protection Requirement.
Provided by the utility model group of Waste Water Treatment and its method, science combine different advanced oxidation mistakes Journey, it is once preposition, photoelectric-synergetic Fenton advanced oxidation, can remove most of characteristic organic pollutants, photoelectricity Fenton's reaction Advanced oxidation effect in device has integrated electrolysis, photocatalytic oxidation, Electro Sorb effect, electroxidation effect, Fenton oxygen Change effect etc.;Another time is the O in rearmounted immobilized biological activated carbon bed3Oxidation, front and rear oxidation mechanism is different, and preposition is Main removal process, it is rearmounted to be handled for guarantee, work according to his ability, rational division of labor is orderly, so as to be greatly improved every section advanced Oxidation efficiency, make water treatment effect higher.
There is biological reinforced processing procedure twice -- microencapsulation biological fluidized bed and immobilized biological activated carbon bed, all use Immobilized microorganism technique.Microencapsulation is the newer application in immobilization technology.To efficiently it be lived using microcapsules technology Property sludge or efficient degrading bacteria be embedded into the bio-microcapsule of particular size, not only can enhanced bio-treatment significantly, also Anaerobic ammonium oxidizing bacteria can be embedded, is cultivated in fluid bed, the C/N that technique is suitable to handle high nitrogen can be made than relatively low work Industry waste water, so as to widen the application of group technology.Also have for characteristic contamination in immobilized biological activated carbon bed Efficient degrading bacteria Immobilized culture, and the continuity of biological reinforced processing.The scientific and reasonable score arraying biomolecule of the utility model is strengthened Process causes microencapsulation biological fluidized bed in system and immobilized biological activated carbon bed all to play high efficiency.It is of the present utility model System is high to the characteristic organic pollutants removal efficiency of difficult degradation, can be more than 98%, achieve technology unexpected well Effect.And process runs well is reliable, can ensure that up to standard.
Processing system provided by the utility model, combination difficulty is big, and advanced oxidation processes are a lot, and biological treatment and biology are strong Change means are also a lot, and the utility model is screened by many experiments, from each workshop section's general principle, ingenious each work of reasonable Arrangement Section, the materializing strategy of advanced oxidation is merged and has had biological reinforced biochemical treatment.
The utility model photoelectricity Fenton, microencapsulation biological fluidized bed and immobilized biological activated carbon bed functionally mutually prop up Hold, mutually promote.Wastewater of chemical industry with high concentration is first handled through photoelectricity Fenton, is eliminated most of characteristic organic pollutants, is follow-up Processing alleviates load;Waste water after pre-treatment and low concentration wastewater from chemical industry are adjusted to give up suitable for the synthesis of processing by regulating reservoir Water;It is microencapsulation biological fluidized bed to have played the function of biological treatment to greatest extent then by the biological reinforced of microencapsulation, Energy consumption is low, eliminates COD most in water;Immobilized biological activated carbon bed is the technique of checking on of whole group technology, will Above further removed in place without removal characteristic organic pollutants up to standard and COD.(1) photoelectricity Fenton processing is subsequent treatment Load is alleviated, while has the follow-up microencapsulation biological fluidized bed and processing of immobilized biological activated carbon bed, economical can be closed The appropriate reduction Fenton medicament usage amount of reason or whole oxidation reaction residence time, repeated oxidizing process repeatedly is reduced, Also without by the characteristic organic pollutants exhaustive oxidation of difficult degradation substantial amounts of energy and medicament are consumed into carbon dioxide.(2) Microencapsulation biological fluidized bed is COD main removal workshop section, preposition oxidation processes and regulation, alleviates it to the organic dirt of feature The pressure of thing processing is contaminated, the function of biological treatment can be played to greatest extent so that waste water basic handling is up to standard, biological treatment energy Consume it is low, particularly have immobilization technology enhanced biological handle, treatment effeciency is higher, and fluid bed sludge yield is few, Treatment of Sludge Expense is low, can make up the energy consumption of advanced oxidation section and the cost of medicament.(3) immobilized biological activated carbon bed is whole group technology Technique of checking on, be that Pollutants in Wastewater is stabilized the key efficiently removed.Because characteristic organic pollutants are most of in light Electric Fenton section is removed, and most COD is in microencapsulation biological fluidized bed middle removing in water, so immobilized biological activated The processing load of charcoal bed is not high, but when photoelectricity Fenton and microencapsulation biological fluidized bed processing produce fluctuation, plays important Processing of checking on acts on.Integrated artistic is optimized after combination, more efficient, more economical, more stable.
Beneficial effect:It is provided by the utility model based on the Waste Water Treatment of photoelectricity Fenton-biological reinforced with it is existing Technique is compared, and the utility model has the advantages that:
1st, Waste Water Treatment provided by the utility model, by materializing strategy, biochemical treatment and ensure that processing is organic in order Ground is combined, and photoelectricity Fenton reactor, microencapsulation biological fluidized bed and immobilized biological activated carbon bed are functionally mutually supported, phase Mutually promote, " collaboration advanced oxidation-biological reinforced-guarantee processing " is used in combination, reasonable in design, and integrated artistic is more after combination Efficiently, it is more economical, it is more stable.Anaerobic ammonium oxidizing bacteria is embedded simultaneously, is cultivated in fluid bed, group technology can be widened Application;Rational combination in order, makes integrated artistic anti impulsion load;Whole group technology sludge yield is few, Treatment of Sludge Expense is low, good sewage processing effect, has great importance to environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of the Waste Water Treatment provided by the utility model based on photoelectricity Fenton-biological reinforced.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate, it should be understood that embodiment is merely to illustrate The utility model rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art Modification to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
Embodiment 1:
Production waste water needs to be handled caused by certain chemical enterprise, and the wastewater of chemical industry with high concentration COD of before processing≤ 8000mg/L, pH 6.5~8.5, SS≤300mg/L, NH3- N≤100mg/L, TP≤2.5mg/L, characteristic contamination concentration chlorine Benzene class≤100mg/L.Wastewater from chemical industry COD≤2500mg/L, pH 6.5~8.5, SS≤300mg/L, NH3-N≤50mg/L,TP ≤ 1.0mg/L, characteristic contamination concentration chlorobenzene class≤10mg/L.Water outlet requirement reaches《The main water pollution of Chemical Industry in Jiangsu Province Thing discharge standard》(DB32/939-2006) secondary standard.Effluent index requirement COD≤120mg/L, pH 6.5~8.5, SS≤ 150mg/L, NH3- N≤25mg/L, TP≤1.0mg/L, characteristic contamination concentration chlorobenzene class≤1.0mg/L.
Using the Waste Water Treatment based on photoelectricity Fenton-biological reinforced in accompanying drawing 1, including pass through the connected pre-exposure of pipeline Gas pond 1, photoelectricity Fenton reactor 2, degassing neutralization pond 3, coagulative precipitation tank 4, regulating reservoir 5, microencapsulation biological fluidized bed 6 and fixation Metaplasia thing active-carbon bed 7, delivery pump can be installed on water pipe.
Concrete operation step:
(1) wastewater of chemical industry with high concentration inputs preaeration tank 1 through pump, be oxygenated and quenched;
(2) preaeration tank water outlet enters photoelectricity Fenton reactor 2, under ultraviolet light, carries out electric Fenton advanced oxidation Reaction, mainly removes most characteristic organic pollutants, is separately added into by medicine system into photoelectricity Fenton reactor H2SO4Solution and FeSO4Solution;
(3) water outlet of photoelectricity Fenton reactor 2 enters degassing neutralization pond 3, sloughs a small amount of gas by stirring, it is molten to add NaOH Liquid, adjust the pH value of waste water;
(4) the degassing water outlet of neutralization pond 3 enters coagulative precipitation tank, adds coagulant by coagulant medicine system, and control Mixing speed forms big flco;Sediment fraction is entered back into, the big flco of formation realizes precipitation separation, precipitation in settling zone Sludge is handled through sludge treating system;
(5) after pretreatment, into regulating reservoir 4, while low concentration wastewater from chemical industry imports regulating reservoir to wastewater of chemical industry with high concentration 4, the bottom of regulating reservoir 4 is provided with microporous aeration device, regulating water quality water;
(6) adjusted rear waste water is conveyed into microencapsulation biological fluidized bed 5 by intake pump, is answered using single-cylinder type anaerobic-aerobic Close microencapsulation biological fluidized bed;The reactor body of anaerobic and aerobic fluid bed is reaction zone, is separated by lucite, And ratio of height to diameter takes 1.5, aerobic part cumulative volume is 2 times of anaerobic part cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, profit Microbial capsules are driven to be in fluidisation state with current;Waste water in anaerobic fluidized bed flows directly into aerobic fluidized bed;Aerobic fluidisation Bed body substitutes water-locator with anaerobic fluidized bed similar, with aeration plate, drives microbial capsules to be in fluidisation state with air-flow;
(7) microencapsulation biological fluidized bed 5 water outlet enters immobilized biological activated carbon bed 6 through infusion, and efficient degrading bacteria (is directed to Degraded characteristic organic pollutants:Chlorobenzene class) fix on the activated carbon, intermittently added in the water inlet to immobilized biological activated carbon bed Ozone, it is aerated by the microporous aeration device of bottom, removes part COD and characteristic organic pollutants in waste water, it is described Using activated carbon as filler in immobilized biological activated carbon bed, dosage is calculated as 50% with percent by volume, during hydraulic retention Between be 45min, filtering velocity 2.0m/h, through immobilized biological activated carbon bed processed waste water qualified discharge.
It is provided with photoelectricity Fenton reactor and carries TiO2The anode of coating and the negative electrode of active carbon fiber felt, the plate of two interpolars Spacing is 5cm, and the voltage control between negative electrode and anode is 15V, current density 50mA/cm2, apply ultraviolet source, with anode Plate irradiates in 45° angle, forms photoelectricity Fenton's reaction system;Waste water first after preaeration, into photoelectricity Fenton reactor, is used first The pH of sulfuric acid regulation waste water is 3, then adds FeSO4, it is then electrified to start to be electrolysed;While electrolysis, carried out with ultraviolet light Irradiation, photoelectricity Fenton's reaction occurs, promotes organic matter degradation mineralising;The light source of ultraviolet light be using the high-strength medium pressure mercury lamps of 250W, Uviol lamp group exposure intensity 60MJ/m2, its radiation wave band is in 230~320nm.
Using microcapsules technology by efficient degrading bacteria (for degraded characteristic organic pollutants:Chlorobenzene class) biology that is embedded into In microcapsules, microcapsules have suitable density, can be circulated up and down in the reactor according to the size of current or air-flow; Microencapsulation biological fluidized bed, it is 12kgCOD/ (m that it, which designs volumetric loading,3·d).Ozone oxidation and immobilized biological activated carbon bed It is treated as the workshop section of checking on of group technology.
After the utility model is handled, effluent index COD≤80mg/L, pH 6.5~8.5, SS≤50mg/L, NH3-N≤ 15mg/L, TP≤0.5mg/L, characteristic contamination concentration chlorobenzene class≤0.8mg/L.Leading indicator each unit treatment effect see the table below 1。
The leading indicator each unit treatment effect list of table 1
Embodiment 2:
Production waste water needs to be handled caused by certain chemical enterprise, and the wastewater of chemical industry with high concentration COD of before processing≤ 10000mg/L, pH 6.5~8.5, SS≤300mg/L, NH3- N≤100mg/L, TP≤2.0mg/L, characteristic contamination concentration nitre Base benzene class≤100mg/L.Low concentration chemical industry waste water COD≤3000mg/L, pH 6.5~8.5, SS≤300mg/L, NH3-N≤ 50mg/L, TP≤1.0mg/L, characteristic contamination concentration nitrobenzene≤10mg/L.Water outlet requirement reaches《Chemical Industry in Jiangsu Province Main pollution discharge standard》(DB32/939-2006) secondary standard.Effluent index requires COD≤120mg/L, pH 6.5 ~8.5, SS≤150mg/L, NH3- N≤25mg/L, TP≤1.0mg/L, characteristic contamination concentration nitrobenzene≤1.0mg/L.
Using the Waste Water Treatment based on photoelectricity Fenton-biological reinforced in accompanying drawing 1, including pass through the connected pre-exposure of pipeline Gas pond 1, photoelectricity Fenton reactor 2, degassing neutralization pond 3, coagulative precipitation tank 4, regulating reservoir 5, microencapsulation biological fluidized bed 6 and fixation Metaplasia thing active-carbon bed 7, delivery pump can be installed on water pipe.
Concrete operation step:
(1) wastewater of chemical industry with high concentration inputs preaeration tank 1 through pump, be oxygenated and quenched;
(2) water outlet of preaeration tank 1 enters photoelectricity Fenton reactor 2, under ultraviolet light, carries out electric Fenton advanced oxidation Reaction, mainly removes most characteristic organic pollutants, is separately added into by medicine system into photoelectricity Fenton reactor 2 H2SO4Solution and FeSO4Solution;
(3) water outlet of photoelectricity Fenton reactor 2 enters degassing neutralization pond, sloughs a small amount of gas by stirring, it is molten to add NaOH Liquid, adjust the pH value of waste water;
(4) degassing neutralization pond water outlet enters coagulative precipitation tank 3, adds coagulant by coagulant medicine system, and control Mixing speed forms big flco;Sediment fraction is entered back into, the big flco of formation realizes precipitation separation, precipitation in settling zone Sludge is handled through sludge treating system;
(5) after pretreatment, into regulating reservoir 4, while low concentration wastewater from chemical industry imports regulating reservoir to wastewater of chemical industry with high concentration 4, the bottom of regulating reservoir 4 is provided with microporous aeration device, regulating water quality water;
(6) adjusted rear waste water is conveyed into microencapsulation biological fluidized bed 5 by intake pump, is answered using single-cylinder type anaerobic-aerobic Close microencapsulation biological fluidized bed;The reactor body of anaerobic and aerobic fluid bed is reaction zone, is separated by lucite, And ratio of height to diameter takes 1.5, aerobic part cumulative volume is 2 times of anaerobic part cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, profit Microbial capsules are driven to be in fluidisation state with current;Waste water in anaerobic fluidized bed flows directly into aerobic fluidized bed;Aerobic fluidisation Bed body substitutes water-locator with anaerobic fluidized bed similar, with aeration plate, drives microbial capsules to be in fluidisation state with air-flow;
(7) microencapsulation biological fluidized bed water outlet enters immobilized biological activated carbon bed 6 through infusion, and efficient degrading bacteria (is directed to Degraded characteristic organic pollutants:Nitrobenzene) fix on the activated carbon, intermittently thrown in the water inlet to immobilized biological activated carbon bed Add ozone, be aerated by the microporous aeration device of bottom, remove part COD and characteristic organic pollutants in waste water, it is described Immobilized biological activated carbon bed in using activated carbon be calculated as 55% as filler, dosage with percent by volume, hydraulic retention Time is 45min, filtering velocity 2.0m/h, through immobilized biological activated carbon bed processed waste water qualified discharge.
It is provided with photoelectricity Fenton reactor 2 and carries TiO2The anode of coating and the negative electrode of active carbon fiber felt, two interpolars Plate spacing is 5cm, and the voltage control between negative electrode and anode is 15V, current density 60mA/cm2, apply ultraviolet source, with sun Pole plate irradiates in 45° angle, forms photoelectricity Fenton's reaction system;Waste water is first after preaeration, into photoelectricity Fenton reactor, first PH with sulfuric acid regulation waste water is 3, then adds FeSO4, it is then electrified to start to be electrolysed;While electrolysis, entered with ultraviolet light Row irradiation, occurs photoelectricity Fenton's reaction, promotes organic matter degradation mineralising;The light source of ultraviolet light is using the high-strength middle pressure mercury of 250W Lamp, uviol lamp group exposure intensity 60MJ/m2, its radiation wave band is in 230~320nm.
Using microcapsules technology by efficient degrading bacteria (for degraded characteristic organic pollutants:Nitrobenzene) life that is embedded into In thing microcapsules, microcapsules have suitable density, can according to the size of current or air-flow in the reactor up and down recycle stream It is dynamic;Microencapsulation biological fluidized bed, it is 12kgCOD/ (m that it, which designs volumetric loading,3·d).Ozone oxidation with it is immobilized biological activated Charcoal bed is treated as the workshop section of checking on of group technology.
After combined PROCESS FOR TREATMENT, effluent index COD≤80mg/L, pH 6.5~8.5, SS≤50mg/L, NH3-N≤ 15mg/L, TP≤0.5mg/L, characteristic contamination concentration nitrobenzene≤0.8mg/L.Leading indicator each unit treatment effect is seen below Table 2.
The leading indicator each unit treatment effect list of table 2
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (6)

1. the Waste Water Treatment based on photoelectricity Fenton-biological reinforced, it is characterised in that it includes being sequentially connected through water pipe pre- Aeration tank (1), photoelectricity Fenton reactor (2), degassing neutralization pond (3), coagulative precipitation tank (4), regulating reservoir (5), microencapsulation biological Fluid bed (6) and immobilized biological activated carbon bed (7).
2. the Waste Water Treatment according to claim 1 based on photoelectricity Fenton-biological reinforced, it is characterised in that described Photoelectricity Fenton reactor (2) in be provided with carry TiO2The anode of coating and the negative electrode of active carbon fiber felt, anode and negative electrode it Between plate spacing be 4~6cm, the control of voltage between negative electrode and anode is 15V, 50~60mA/cm of current density2, apply ultraviolet Radiant, irradiated with anode in 45° angle, form photoelectricity Fenton's reaction system.
3. the Waste Water Treatment according to claim 2 based on photoelectricity Fenton-biological reinforced, it is characterised in that ultraviolet Radiant is the high-strength medium pressure mercury lamps of 250W, and uviol lamp group exposure intensity is 40-80MJ/m2, radiation wave band is 230~320nm.
4. the Waste Water Treatment according to claim 1 based on photoelectricity Fenton-biological reinforced, it is characterised in that regulation The bottom in pond (5) is provided with microporous aeration device, adjusts the water quality and quantity of waste water.
5. the Waste Water Treatment according to claim 1 based on photoelectricity Fenton-biological reinforced, it is characterised in that micro-capsule Metaplasia fluidized beds (6) are anaerobic fluidized bed and aerobic fluidized bed using single-cylinder type, anaerobic fluidized bed and aerobic fluidized bed interior be provided with Microcapsules, high-efficiency activated sludge or efficient degrading bacteria are embedded with microcapsules;
Anaerobic fluidized bed and aerobic fluidized bed reactor body is reaction zone, and the two is separated by lucite, monotubular The ratio of height to diameter of the anaerobic fluidized bed and aerobic fluidized bed reactor body of formula is respectively less than 2, and aerobic part cumulative volume is anaerobic part 1.5~2 times of cumulative volume;Waste water is entered by anaerobic fluidized bed bottom, drives microbial capsules to be in fluidisation state using current;Detest Waste water in oxygen fluid bed flows directly into aerobic fluidized bed;Aeration plate is provided with aerobic fluidized bed body, micro- life is driven with air-flow Composite capsule is in fluidisation state.
6. the Waste Water Treatment according to claim 1 based on photoelectricity Fenton-biological reinforced, it is characterised in that fixed Metaplasia thing active-carbon bed (7) is connected with ozone discharge device;The activated carbon of immobilized biological activated carbon bed (7) is provided with organic matter Degradation flora.
CN201720294346.6U 2017-03-24 2017-03-24 Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton Expired - Fee Related CN206666329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720294346.6U CN206666329U (en) 2017-03-24 2017-03-24 Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720294346.6U CN206666329U (en) 2017-03-24 2017-03-24 Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton

Publications (1)

Publication Number Publication Date
CN206666329U true CN206666329U (en) 2017-11-24

Family

ID=60372912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720294346.6U Expired - Fee Related CN206666329U (en) 2017-03-24 2017-03-24 Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton

Country Status (1)

Country Link
CN (1) CN206666329U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106830563A (en) * 2017-03-24 2017-06-13 盐城工学院 Based on photoelectricity Fenton biological reinforced Waste Water Treatment and its method of wastewater treatment
CN108503103A (en) * 2018-04-18 2018-09-07 常德力元新材料有限责任公司 The method for handling waste water
CN109052855A (en) * 2018-09-07 2018-12-21 张艳平 A kind of new-type multilayer sterilization aerating type sewage-treatment plant
CN111646634A (en) * 2020-05-11 2020-09-11 南京岱蒙特科技有限公司 Ultrasonic coupling photoelectric Fenton activated persulfate water treatment system and water treatment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106830563A (en) * 2017-03-24 2017-06-13 盐城工学院 Based on photoelectricity Fenton biological reinforced Waste Water Treatment and its method of wastewater treatment
CN108503103A (en) * 2018-04-18 2018-09-07 常德力元新材料有限责任公司 The method for handling waste water
CN109052855A (en) * 2018-09-07 2018-12-21 张艳平 A kind of new-type multilayer sterilization aerating type sewage-treatment plant
CN111646634A (en) * 2020-05-11 2020-09-11 南京岱蒙特科技有限公司 Ultrasonic coupling photoelectric Fenton activated persulfate water treatment system and water treatment method

Similar Documents

Publication Publication Date Title
CN106830563A (en) Based on photoelectricity Fenton biological reinforced Waste Water Treatment and its method of wastewater treatment
KR101342678B1 (en) Waste water treatment system by two stage anaerobic reactors coupled with nitrogen removal process
CN206666329U (en) Based on the biological reinforced Waste Water Treatment of photoelectricity Fenton
CN106927628A (en) Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique
CN110156146B (en) Biological membrane electrochemical reactor for simultaneously removing nitric acid nitrogen and trace organic matters in water
CN105481154B (en) A kind of integrated catalytic oxidation and the milipore filter reused water processing device of supported catalyst
CN104163539A (en) Processing method of wastewater in coal chemistry industry
CN101591082A (en) Organic electroplating waste water multicomponent oxide pretreatment process and device
CN101376556A (en) Ozone oxidation sterilizing and downflow type aerating biological filter combined waste water treatment apparatus
CN205773937U (en) A kind of ozone occurs and processing means
CN106865896A (en) A kind of lithium battery production wastewater treatment system
CN101468862A (en) High purification treatment system for dyeing wastewater
CN109179883A (en) A kind of preprocess method and device for aged consumer waste infiltration liquid
CN102963956A (en) Method for processing high-concentration non-degradable organic wastewater in combination with titanium dioxide and ultraviolet radiation
CN206457385U (en) A kind of wastewater from chemical industry recycling device
CN109928586A (en) A kind of method of difficult for biological degradation organic pollutant in removal dyeing waste water
CN209242868U (en) A kind of combined system handling dyeing waste water
CN204342609U (en) A kind of refractory organic industrial sewage treatment system
CN206886798U (en) anaerobic/aerobic integrated reactor
CN207877521U (en) A kind of garbage leachate treatment device
CN103787545B (en) The method processing DCP waste water
CN206624744U (en) Light electrolysis Fenton EGSB A/O BCO BAF coagulating treatment pharmacy waste water systems
CN211813791U (en) Organic waste water photocatalysis processing apparatus
CN212532677U (en) Landfill leachate treatment system
CN204981497U (en) Handle two membrane inner loop bioreaction system of low concentration organic waste water

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171124

Termination date: 20210324