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 PDFInfo
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- 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
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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
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.
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Cited By (4)
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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 |
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2017
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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