CN104310571A - Method for purifying poisonous and harmful organic pollutants by using electromagnetic collaborative enhanced biological packed tower - Google Patents
Method for purifying poisonous and harmful organic pollutants by using electromagnetic collaborative enhanced biological packed tower Download PDFInfo
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- CN104310571A CN104310571A CN201410533412.1A CN201410533412A CN104310571A CN 104310571 A CN104310571 A CN 104310571A CN 201410533412 A CN201410533412 A CN 201410533412A CN 104310571 A CN104310571 A CN 104310571A
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- Prior art keywords
- waste water
- biofilm
- packing tower
- biological packing
- poisonous
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Links
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1231—Treatments of toxic sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Toxicology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a device and method for purifying poisonous and harmful organic pollutants by using an electromagnetic collaborative enhanced biological packed tower, and belongs to the field of pollution control of difficultly treated high-concentration poisonous and harmful organic pollutants. The method for treating the poisonous and harmful organic pollutants, which is disclosed by the invention comprises the steps: domestication of a bactericide; preparation of reactor packing; biofilm formation of reactor packing; and treatment of poisonous and harmful organic pollutants. According to the method disclosed by the invention, the defect that the degradation efficiency is affected by concentrated falling easily caused by aging when the biofilm process runs are overcome by utilizing an electromagnetic collaborative technology; the bactericide with a rapid growth rate and high degradation efficiency of poisonous and harmful organic pollutants is cultured; meanwhile, the content of dissolved oxygen in a reactor system is improved, so that the mass transfer rate of matter in gas and liquid phases is enhanced, and thus the degradation reaction probability of the poisonous and harmful organic pollutants is increased, and the organic matter is fully purified.
Description
Technical field
The present invention relates to a kind of apparatus and method purifying poisonous and harmful organic pollutant, particularly electromagnetism cooperative reinforcing processes the apparatus and method of poisonous and harmful organic pollutant based on biological packing tower, belongs to the Environmental capacity field of difficult high density poisonous and harmful organic pollutant.
Background technology
Poisonous and harmful organic pollutant mainly refers to the organic pollution materials with bio-toxicity, they not only have obvious toxicity to biological and the mankind, can cause acute and chronic poisoning, some toxic substance can also cause cancer, monster and cytogenetics transgenation, i.e. " three cause " effect.Most of poisonous and harmful organic pollutant is all artificial synthetic organic materials, because their molecules are large, and Stability Analysis of Structures, be difficult to be degraded by microorganisms in physical environment, residence time is long, and therefore there is harm potential for a long time to ecotope, is the first kinds of pollution matter received much concern.Therefore, propose a kind of low cost short route to utilize microbial film efficiently to process poisonous, harmful, difficult biochemical, high concentration organic contaminant just to seem extremely important.
Patent CN 1745883A provides and a kind ofly adopts multistage immobilized microorganism film filler to administer the odor pollution particularly petrifaction sewage Treatment stations method of odor pollution of distributing and the purifying method of low-concentration organic exhaust gas.Though the method has the advantages such as running cost is low, running is stable, shock-resistant, running period is long, through pre-treatment, short route need cannot be reached owing to using this method; Simultaneously biodegradability is reached for the organic exhaust gas of high density to be difficult to, then strict to Microbiological requirements; Handling object is limited in low-concentration organic exhaust gas and to malodor source deodorization, is difficult to wide spectrum process pollutent in addition.
Patent CN 201406362Y discloses a kind of immobilized Aerobic-anaerobic method and apparatus of toxic organics of degrading.This patent only utilizes aerobic anaerobion process hazardous contaminant, does not consider that pollutent can biochemical factors; Although structure is simple, treatment scheme is increased; In addition, this anaerobic-aerobic combination treatment method and A/O method similar.
Biochemical method poisonous and harmful organic pollutant, relative to physico-chemical process, has the advantages such as investment is low, working cost is low, non-secondary pollution.
During microbial film process, biomembranous feature is: when biological membrane anaerobic layer is thick not enough, it and aerobic layer remain a kind of relation of balance and stability, and aerobic layer can keep good purification function; When anaerobic layer thickeies gradually, its internal layer microorganism enters endogenous metabolism because can not get sufficient nutrition, when these meta-bolitess are outwards overflowed, through aerobic layer, thus must destroy the stability of the aerobic layer ecosystem; Simultaneously, the continuous effusion of anaerobic layer gaseous state meta-bolites reduces again the pull-out capacity of microbial film on carrier, facilitates biomembranous coming off, and loses it and is attached on performance on carrier, split away off with water outflow reactor, carrier surface regrows the microbial film made new advances again.
Operating principle for the biomembrance process when carrying out a biological disposal upon has following 4 points: 1. slow down biomembranous ager process; 2. the thickness of anaerobic membrane is controlled; 3. the renewal of aerobic film is accelerated; 4. as far as possible control makes microbial film not concentrate to come off.In order to reach this four fundamental principles, also poisonous and harmful organic pollutant fully can be processed, electromagnetism coordination technique is applied in biological packing tower the new way being resolved both by applicant simultaneously.
Summary of the invention
For defect and the unmanageable feature of poisonous and harmful organic pollutant of biologic treating technique, the invention provides a kind of electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, this device utilizes electromagnetism coordination technique to enhance biological treatment poisonous and harmful organic pollutant efficiency, achieves effective degraded of poisonous and harmful organic pollutant.
The inventive method is carried out as follows:
(1) tamed strain
A, process waste water strain domestication
Choose pending poisonous and harmful organic wastewater active sludge as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution waste water equal with active sludge quality, this pending dilution waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, add nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100 ~ 125:2 ~ 5:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.6 ~ 1 in culture apparatus, namely obtain the bacterial classification of process needed for waste water;
B, process waste gas strain domestication
Choosing coking chemical waste water active sludge as initial bacterial classification is placed in culture apparatus, pending dilution waste gas is successively passed in culture apparatus, this pending dilution waste gas is mixed by the volume ratio of 1:100 pending waste gas and air, add nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100 ~ 125:2 ~ 5:1; Within every two days afterwards, change the pending waste gas that increases progressively successively of concentration and carry out continuous domestication, pending exhaust gas concentration be followed successively by 1:90,1:80 ... 1:30,1:20,1:10,1:1; When after process, waste gas reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.6 ~ 1 in culture apparatus, namely obtain the bacterial classification of process needed for waste gas;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 0.1 ~ 1.5:0.1 ~ 3:1 ~ 3, and install paired electrode in biological packing tower, can indirect current to electrode, direct current or pulsed electrical;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 0.1 ~ 5V, and current density is 1 ~ 40mA/cm
2, the waste water passed into and spent air temperture are 20 ~ 50 DEG C;
The biological packing tower biofilm of a, process waste water
Add the pending waste water of same volume in bacterial classification needed for the process waste water that step (1) obtains, and add nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 100 ~ 125:2 ~ 5:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously;
The biological packing tower biofilm of b, process waste gas
Carbon nitrogen and phosphorus liquid is added in bacterial classification needed for the process waste gas that step (1) obtains, the mass ratio of C:N:P in solution is made to be that 20 ~ 30:2 ~ 5:1 makes biofilm solution, solution is passed into biological packing tower from top to bottom and carry out circulation biofilm, within every two days, change a biofilm solution; Pass into volume ratio from bottom to top to biological packing tower is the pending waste gas of 1:1 and the mixed gas of air simultaneously;
Observe filling surface mycoderm growing state every day, when processed waste water or waste gas reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of poisonous and harmful organic pollutant
Pending waste water or waste gas are passed into biological packing tower from top to bottom, and the waste water passed into and spent air temperture are 20 ~ 50 DEG C, and simultaneously to the electrifying electrodes in biological packing tower, impressed voltage is 0.1 ~ 5V, and current density is 1 ~ 40mA/cm
2, degrade through the purification of biological packing tower, namely obtain processed waste water or waste gas.
In the inventive method, poisonous and harmful organic pollutant comprises poisonous and harmful organic wastewater and poisonous and harmful organic exhaust gas, and poisonous and harmful organic wastewater comprises the trade effluents such as coking chemical waste water, dyeing waste water, medicine producing wastewater, Fine Chemistry Wastewater; Poisonous and harmful organic exhaust gas comprises the industrial gaseous wastees such as petrochemical complex, fine chemistry industry, preparation manufacture spraying, packages printing, semi-conductor and Electronic products manufacturing, leather, coating, metal manufacture.
Described pending poisonous and harmful organic wastewater active sludge refers to the mud in the preliminary sedimentation tank deriving from industrial treatment raw wastewater.
Described coking chemical waste water active sludge derives from the mud in the preliminary sedimentation tank of industrial treatment coking chemical waste water.
Described magnetic fillers is permanent magnet material filler and/or soft magnetic materials filler, and magnetic fillers magnetic energy product is 0.6 ~ 59MGOe, and filler granularity is 100 ~ 8000 μm, with arbitrarily than mixing during the mixing of two kinds of fillers.
Described permanent magnetism filler is that one or more in NdFeB rear-earth alloy, Al-Ni-Co permanent magnet material, iron-chromium-cobalt permanent magnet material, barium ferrite permanent magnet material, iron strontium oxide permanent magnetic material are arbitrarily than mixture.
Described soft magnetic materials is that one or more in pure iron, soft steel, iron silicon alloy, ferro-aluminium, iron silicon aluminum alloy, Rhometal, ferrocobalt, soft magnetic ferrite are arbitrarily than mixture.
Described micro-electrolysis stuffing material is that one or more in iron-carbon filler material, iron/copper filler material, zinc-carbon filler material, aluminium-carbon filler material, magnesium-carbon filler material are arbitrarily than mixture, filler granularity is 100 ~ 3000 μm, and in filler material, the mixing quality ratio of two kinds of raw materials is 1.5 ~ 1:1.
Described carrier filler is made up of carrier and linking agent, and wherein carrier is one or more in gac, peat, yarn fabric, the residual body of cauline leaf root of plant, plastics; Linking agent is one or more of fluorinated ethylene propylene, alginates, calcium oxide, calcium hydroxide etc., containing linking agent 0.05 ~ 0.5g in 1g carrier filler.
Electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method of the present invention uses electromagnetism coordination technique to enhance the biological degradation efficiency of biological packing tower, poisonous and harmful organic pollutant can be fully purified, the method realizes equipment therefor and comprises reactor body 1, porous supporting plate 3, air outlet valve 4 and water intaking valve 5 is provided with above reactor body 1, porous supporting plate 3 is set in reactor body 1, more than one pair of paired electrode 6 is set in reactor body 1; Reactor body 1 bottom arranges intake valve 7 and recoil water valve 9, recoil water valve 9 is arranged on above intake valve 7, outlet valve 8 is arranged on bottom reactor body 1, wherein paired electrode can adopt series connection over-over mode to be arranged in reactor body, porous supporting plate 3 is equipped with the mixture of magnetic fillers, micro-electrolysis stuffing, carrier filler.
When reactor of the present invention runs, paired electrode exchanges with perseverance or permanent D.C. regulated power supply is connected, and its impressed voltage is 0.1 ~ 5V, and current density is 1 ~ 40mA/cm
2, electrode is that anticorrosion electrode is as coated titanium electrode, platinized electrode etc.
Reactor filler of the present invention supplements by the amount of annual 10% ~ 12%.
Electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant technology of the present invention, its cardinal principle is according to being:
1) electromagnetism enhanced biological film treatment effect
electromagnetically induced microbial film produces high degradation effect
Under the effect of Electric and magnetic fields, potential difference inside and outside microbial cell film is increased, constantly acts on through biological packing tower electromagnetic field, fenestra aperture on cytolemma can be made to increase, the organic matter degradation enzyme produced in cell is flowed out smoothly, increases degrading enzyme output; Also make the absorption of microorganism to nutritive ingredient and poisonous and harmful organic pollutant thing be more prone to simultaneously, thus microbial film is increased substantially organic degradation efficiency;
the biomembranous operating performance of electromagnetic optimize
After anaerobic layer in biological packing tower microbial film absorbs organism, decompose under the effect of anaerobic layer microorganism and discharge electronics and proton, the electrical forces produced after two electrodes energising guides electronics and proton to do directive property motion, and the potential difference existed between micro-electrolysis stuffing makes the mass transfer velocity of electronics and proton accelerate, thus accelerate the Biooxidation Rate of microbial film aerobic layer; Simultaneously when electronics transmission, be combined with dissolved oxygen and nutritive substance, make O
2 .-transmit with the past internal layer microbial film that nutritive substance can be darker, even if making to widen with process time lengthening anaerobic layer also can keep balance and stability with microbial film aerobic layer, also slow down biomembranous ager process simultaneously;
Due to after electrifying electrodes can generation current magnetic effect thus cause electric microfield, electric microfield and micro-magnetic field make the particle in reactor filler be in continuous microseism to swing motion, make the physical contact between filler particles can not be too tight, the microbial film of load on filler particles then can not be closely linked together, when the microbial film of load on filler particles be aged to a certain degree come off time, can ensure that microbial film does not become block to come off; Because distance electrode is far away, magneticstrength is less, and micro-vibratory forces of particle is less, and aging biofilm detachment is slower, can ensure that reactor organisms film is not concentrated and come off, thus ensure that biological treatment efficiency remains on highest point.
2) mass-transfer efficiency of electromagnetism accelerating reactor system
oxygen is typical paramagnetic gas, after electrifying electrodes, the magnetic field of reactor is enhanced, thus oxygen is improved in the solubleness of liquid phase, thus enhanced system is to the oxide treatment effect of pollutent;
after organism enters biologic packing material Tower System, in the process that organism is absorbed by microbial film through air film and liquid film, electronic action in electric field and system is in organism, make it with unpaired electron, thus generation paramagnetism, organism rate of mass transfer is in systems in which improved significantly, and the probability reacted with oxygen and degrading enzyme becomes larger, thus reaction can be made more thorough, poisonous and harmful organic pollutant is fully purified.
Advantage of the present invention and effect as follows:
The present invention utilize electromagnetism coordination technique solve when biomembrance process runs aging rear easily cause to concentrate come off and affect the defect of degradation efficiency; Also cultivated a kind of growth velocity fast, the microbial inoculum that degraded poisonous and harmful organic pollutant efficiency is high simultaneously;
Apparatus of the present invention utilize electromagnetic technique that the dissolved oxygen content in reactor assembly is improved, and material rate of mass transfer in liquid phase is got a promotion, thus organic matter degradation reaction probabilities is increased, be fully purified.
Accompanying drawing explanation
Fig. 1 is the structural representation realizing the inventive method device;
In figure: 1 is reactor body; 2 is reactor fillers; 3 is porous supporting plates; 4 is air outlet valves; 5 is water intaking valves; 6 is paired electrodes; 7 is intake valves; 8 is outlet valves; 9 is recoil water valves.
Embodiment
Below by drawings and Examples, the present invention is described in further detail, but scope is not limited to described content.
Embodiment 1: electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, concrete operations are as follows:
1, coking chemical waste water is the trade effluent containing a large amount of Persistent organic pollutants, its complicated component, and containing hazardous and noxious substances such as a large amount of phenol, cyanogen, benzene, ammonia nitrogens, the coking chemical waste water of discharge beyond standards causes serious pollution to environment.Coking chemical waste water have water quality and quantity change greatly, complicated component, organism is high, the ammonia nitrogen concentration high of hardly degraded organic substance content particularly.Coking chemical waste water is that coking, coal gas are in high temperature carbonization, purification and byproduct removal process, produce the trade effluent containing volatile phenol, polycyclic aromatic hydrocarbons and oxygen, sulphur, the heterogeneous ring compound such as nitrogen, coking chemical waste water water quality is a kind of high CODcr, high phenol value, high ammonia nitrogen and very unmanageable a kind of industrial organic waste water.
2, the present embodiment processes for the coking chemical waste water of certain coke-oven plant, and the designing treatment amount of apparatus of the present invention reactor is Q=350m
3/ d, coking chemical waste water water quality: COD
crbe 3200 ~ 3600mg/L, NH
3-N is 280 ~ 310mg/L, and phenol is 700 ~ 800mg/L, and cyanogen is 25 ~ 40mg/L.
The device that the present embodiment uses comprises reactor body 1, porous supporting plate 3, is provided with air outlet valve 4 and water intaking valve 5, arranges porous supporting plate 3 in reactor body 1, arrange 8 right paired electrodes 6 in reactor body 1 above reactor body 1; Reactor body 1 bottom arranges intake valve 7 and recoil water valve 9, recoil water valve 9 is arranged on above intake valve 7, outlet valve 8 is arranged on bottom reactor body 1, wherein paired electrode adopts series connection over-over mode to be disposed in reactor body with 20cm, and porous supporting plate 3 is equipped with reactor filler; Owing to being process waste water, then recoil water valve 9 and air outlet valve 4 are in closing condition; This reactor height 6m, reactor filler 2 is loaded highly for 3.3m(is shown in Fig. 1).
3, the present embodiment specific implementation method is as follows:
(1) choose this coke-oven plant and retain active sludge in the storage pool of coking chemical waste water as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution coking chemical waste water equal with active sludge quality, this pending dilution coking chemical waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, interpolation urea and Sodium phosphate dibasic do nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100:5:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.8 in culture apparatus, namely obtain the bacterial classification needed for Treatment of Wastewater in Coking;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 1:2:1, and in biological packing tower, paired electrode is installed, wherein magnetic fillers is iron-chromium-cobalt permanent magnet material, and magnetic fillers magnetic energy product is 0.6MGOe, and filler granularity is 8000 μm; Micro-electrolysis stuffing is iron-carbon filler material, and filler granularity is 1200 μm, and in filler material, iron and carbon mass ratio are 1.5:1; Carrier filler take calcium oxide as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.5g calcium oxide in 1g gac;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 1.5V, and current density is 20mA/cm
2, the wastewater temperature passed into is 30 DEG C;
Add the pending coking chemical waste water of same volume in bacterial classification needed for the Treatment of Wastewater in Coking that step (1) obtains, and add urea and Sodium phosphate dibasic does nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 100:5:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously; Observe filling surface mycoderm growing state every day, when processed waste water reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of coking chemical waste water
At normal temperatures, close outlet valve 8, coking chemical waste water is input to reactor body 1 from water intaking valve 7, enter water pH without the need to regulating, enter water fill reactor body after stop input and to eight pairs of coated titanium electrodes 6 lead to permanent DC voltage-stabilizing electricity, voltage is 1.5V, and current density is 20mA/cm
2, waste water is opened outlet valve 8 and is arranged outward by water after reacting 60min in the reactor, continue input coking chemical waste water simultaneously, enter water water rate control at 0.2 ~ 0.25m
3/ min, waste water duration of contact is in the reactor 90min.
The water quality of the coking chemical waste water after the present embodiment process is: COD
crbe 98 ~ 100mg/L, NH
3-N is 7 ~ 10mg/L, and phenol is 0.2 ~ 0.3 mg/L, and cyanogen is 0.1 ~ 0.3mg/L.COD in water outlet
crand NH
3the primary standard that-N reaches " integrated wastewater discharge standard ".
Embodiment 2: electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, concrete operations are as follows:
1, the present embodiment handling object is with the coking chemical waste water in embodiment 1, and biologic packing material tower structure is also identical.
2, the present embodiment specific implementation method is as follows:
(1) choose this coke-oven plant and retain active sludge in the storage pool of coking chemical waste water as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution coking chemical waste water equal with active sludge quality, this pending dilution coking chemical waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, interpolation urea and Sodium phosphate dibasic do nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100:2:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 1 in culture apparatus, namely obtain the bacterial classification needed for Treatment of Wastewater in Coking;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 0.1:0.1:1, and in biological packing tower, paired electrode is installed, wherein magnetic fillers is barium ferrite permanent magnet material, magnetic fillers magnetic energy product is 59MGOe, and filler granularity is 100 μm; Micro-electrolysis stuffing is aluminium-carbon filler material, and filler granularity is 3000 μm, and in filler material, aluminium and carbon mass ratio are 1:1; Carrier filler take alginates as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.05g alginates in 1g gac;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 5V, and current density is 1mA/cm
2, the wastewater temperature passed into is 50 DEG C;
Add the pending coking chemical waste water of same volume in bacterial classification needed for the Treatment of Wastewater in Coking that step (1) obtains, and add urea and Sodium phosphate dibasic does nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 100:2:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously; Observe filling surface mycoderm growing state every day, when processed waste water reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of coking chemical waste water
At normal temperatures, close outlet valve, coking chemical waste water is input to reactor body from water intaking valve, enter water pH without the need to regulating, enter water fill reactor body after stop input and to eight pairs of coated titanium electrodes lead to permanent AC voltage-stabilizing electricity, voltage is 5V, and current density is 0.1mA/cm
2, waste water is opened outlet valve after reacting 90min in the reactor and is arranged outward by water, continues input coking chemical waste water simultaneously, enters water water rate control at 0.2 ~ 0.25m
3/ min, waste water duration of contact is in the reactor 90min.
The water quality of the coking chemical waste water after the present embodiment process is: COD
crbe 90 ~ 95mg/L, NH
3-N is 8 ~ 9mg/L, and phenol is 0.1 ~ 0.3 mg/L, and cyanogen is 0.1 ~ 0.2mg/L.COD in water outlet
crand NH
3the primary standard that-N reaches " integrated wastewater discharge standard ".
Embodiment 3: electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, concrete operations are as follows:
1, dyeing waste water contains dyestuff, auxiliary agent, finish, soda acid, fiber impurity and inorganic salt etc., has that the water yield is large, colourity is high, alkalescence is strong, organic content high, is the important sources of water environment pollution.Along with the development of modern printing technology, a large amount of novel dyeing and printing auxiliary, dyestuff, PVA slurry etc. are difficult to the widespread use of biodegradable organism in dyeing, and cause the dye stability in dyeing waste water to strengthen, organic components becomes increasingly complex, B/C is than declining, and biodegradability reduces.
In dyeing waste water, the desized wastewater water yield is less, but Pollutant levels are high, wherein containing various slurry, slurry degradation thing, fiber flock, starch alkali and various auxiliary agent.Waste water is in alkalescence, and pH value is about 12, starching (as cotton) desized wastewater based on starch, and wherein COD, BOD value is all very high, good biodegradability; Starching is based on (as polyester-cotton blend warp thread) desized wastewater of polyvinyl alcohol (PVA), and COD is high and BOD is low, and wastewater biodegradability is poor.
2, the present embodiment processing based on the desized wastewater of polyvinyl alcohol (PVA) for certain printing and dyeing mill, the designing treatment amount of apparatus of the present invention reactor is Q=120m
3/ d, desized wastewater water quality: COD
crbe 4300 ~ 4500mg/L, PVA be 1500 ~ 1700mg/L, colourity is 250 times.
The device that the present embodiment uses comprises reactor body 1, porous supporting plate 3, is provided with air outlet valve 4 and water intaking valve 5, arranges porous supporting plate 3 in reactor body 1, arrange 5 right paired electrodes 6 in reactor body 1 above reactor body 1; Reactor body 1 bottom arranges intake valve 7 and recoil water valve 9, recoil water valve 9 is arranged on above intake valve 7, outlet valve 8 is arranged on bottom reactor body 1, and wherein electrode adopts series connection over-over mode to be disposed in reactor body with 18cm, and porous supporting plate 3 is equipped with reactor filler; Owing to being process waste water, then recoil water valve 9 and air outlet valve 4 are in closing condition; This reactor height 4m, it is highly 2m that reactor filler 2 is loaded.
3, the present embodiment specific implementation method is as follows:
(1) active sludge in the storage pool of the desized wastewater that this printing and dyeing mill retains is chosen as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution coking chemical waste water equal with active sludge quality, this pending dilution coking chemical waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, add ammonium phosphate simultaneously and do nitrogen and phosphorus liquid, make BOD in whole culture medium
5: the mass ratio of N:P is 110:4:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.7 in culture apparatus, namely obtain the bacterial classification of process needed for waste water;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 1.2:1:2.6, and in biological packing tower, paired electrode is installed, wherein magnetic fillers iron silicon aluminum alloy and alnico formulated with mass ratio 15:1, magnetic fillers magnetic energy product is 36MGOe, and filler granularity is 3200 μm; Micro-electrolysis stuffing is zinc-carbon filler material, and filler granularity is 1500 μm, and in filler material, zinc and carbon mass ratio are 1.7:1; Carrier filler take sodium alginate as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.1g sodium alginate in 1g gac;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 2V, and current density is 30mA/cm
2, the wastewater temperature passed into is 20 DEG C;
Add the pending waste water of same volume in bacterial classification needed for the process waste water that step (1) obtains, and add ammonium phosphate and do nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 110:4:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously; Observe filling surface mycoderm growing state every day, when processed waste water reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) at normal temperatures, close outlet valve 8, coking chemical waste water is input to reactor body 1 from water intaking valve 7, enter water pH without the need to regulating, enter water fill reactor after stop input and to five pairs of coated titanium electrodes lead to permanent AC voltage-stabilizing electricity, voltage is 2V, and current density is 30mA/cm
2, waste water is opened outlet valve 8 and is arranged outward by water after reacting 90min in the reactor, continue input waste water simultaneously, enter water water rate control at 0.1 ~ 0.15m
3/ min, waste water duration of contact is in the reactor 150min;
After the present embodiment process, wherein Some Organic Pollutants and the inorganic salt etc. such as dyestuff, auxiliary agent, finish are effectively degraded, and the water quality of the desized wastewater after process is: COD
crbe 210 ~ 217mg/L, PVA be 68 ~ 73mg/L, colourity is 25 times.
Embodiment 4: electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, concrete operations are as follows:
1, the present embodiment handling object is identical with embodiment 3, and biologic packing material tower structure is also identical.
2, the present embodiment specific implementation method is as follows:
(1) active sludge in the storage pool of the desized wastewater that this printing and dyeing mill retains is chosen as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution coking chemical waste water equal with active sludge quality, this pending dilution coking chemical waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, add ammonium phosphate simultaneously and do nitrogen and phosphorus liquid, make BOD in whole culture medium
5: the mass ratio of N:P is 125:5:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.6 in culture apparatus, namely obtain the bacterial classification of process needed for waste water;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 1.5:3:2, and in biological packing tower, paired electrode is installed, wherein magnetic fillers is ferrocobalt, and magnetic fillers magnetic energy product is 0.6MGOe, and filler granularity is 8000 μm; Micro-electrolysis stuffing is iron/copper filler material, and filler granularity is 100 μm, and in filler material, iron and copper mass are than being 1.5:1; Carrier filler take calcium hydroxide as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.3g calcium hydroxide in 1g yarn fabric;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 0.1V, and current density is 40mA/cm
2, the wastewater temperature passed into is 20 DEG C;
Add the pending waste water of same volume in bacterial classification needed for the process waste water that step (1) obtains, and add ammonium phosphate and do nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 125:5:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously; Observe filling surface mycoderm growing state every day, when processed waste water reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) at normal temperatures, close outlet valve, coking chemical waste water is input to reactor body from water intaking valve, enter water pH without the need to regulating, enter water fill reactor after stop input and to five pairs of coated titanium electrodes lead to permanent AC voltage-stabilizing electricity, voltage is 0.1V, and current density is 40mA/cm
2, waste water is opened outlet valve after reacting 120min in the reactor and is arranged outward by water, continues input waste water simultaneously, enters water water rate control at 0.1 ~ 0.2m
3/ min, waste water duration of contact is in the reactor 120min;
After the present embodiment process, wherein Some Organic Pollutants and the inorganic salt etc. such as dyestuff, auxiliary agent, finish are effectively degraded, and the water quality of the desized wastewater after process is: COD
crbe 230 ~ 234mg/L, PVA be 60 ~ 63mg/L, colourity is 26 times.
Embodiment 5: organic exhaust gas is produced in electromagnetism cooperative reinforcing biological packing tower purification spraying, and concrete operations are as follows:
Topsoil is one of the most outstanding at present environmental problem of China, and the industrial gaseous waste of all kinds of manufacturing enterprises discharge is the important sources of atmospheric polluting material.The volatile organic matter (VOCs) of the industry discharges such as various furniture, spraying, shoemaking, printing, electronics and material, comprise benzene homologues, ester class, polycyclic aromatic hydrocarbons, aldehyde ketone alcohols, halohydrocarbon, organic sulfide and muriate etc., outstanding problem is become to the pollution of environment.A large amount of industrial organic exhaust gas discharge air, makes atmosphere quality decline, brings serious harm to HUMAN HEALTH, bring about great losses to national economy.
Organic exhaust gas generally exist inflammable and explosive, poisonous and harmful, water insoluble, be dissolved in large etc. the feature of organic solvent, intractability.The method of current VOCs treatment mainly contains: absorption, condensation, burning, catalyticcombustion, bio-oxidation etc.But prior art is when administering complex industrial organic exhaust gas in technology or have some limitations economically, and there is adsorbent reactivation difficulty, blocking, catalyzer is easily poisoning, microorganism culturing difficulty, adaptability face are narrow, the feature that working cost is high.
1, the present embodiment processes for the spraying process gas of certain spraying factory, and its main poisonous and harmful organic exhaust gas concentration is: toluene 150 ~ 250mg/m
3, butanone 100 ~ 300mg/m
3, acetone 150 ~ 300mg/m
3, N-BUTYL ACETATE 200 ~ 300mg/m
3, vinyl acetic monomer 200 ~ 400mg/m
3, air quantity is 5000 ~ 8000m
3/ h, temperature 40 ~ 60 DEG C.
The top that the present embodiment device comprises its reactor body 1 is provided with air outlet valve 4 and water intaking valve 5; Porous supporting plate 3 is set in reactor body 1, porous supporting plate 3 is equipped with reactor filler 2; Nine pairs of platinized electrodes 6 are set in reactor body 1; Intake valve 7, outlet valve 8 and recoil water valve 9 are set below reactor body 1; Wherein electrode pair adopts series connection over-over mode to be disposed in reactor body with 15cm; Owing to being process waste gas, then the water valve 9 that recoils is in closing condition.This reactor assembly height 4m, it is highly 2.6m that reactor filler is loaded.
2, the concrete using method of the present invention is as follows:
(1) active sludge of Treatment of Coking Effluent factory preliminary sedimentation tank is chosen as bacterial classification, and be placed in culture apparatus, pending dilution waste gas is successively passed in culture apparatus, this pending dilution waste gas is mixed by the volume ratio of 1:100 pending waste gas and air, add ammonium phosphite simultaneously and do nitrogen and phosphorus liquid, make BOD in whole culture medium
5: the mass ratio of N:P is 115:5:1; Within every two days afterwards, change the pending waste gas that increases progressively successively of concentration and carry out continuous domestication, pending exhaust gas concentration be followed successively by 1:90,1:80 ... 1:30,1:20,1:10,1:1; When after process, waste gas reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.9 in culture apparatus, namely obtain the bacterial classification of process needed for waste gas;
Magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in reactor with 1:1.2:2.5 ratio, wherein magnetic fillers with iron strontium oxide permanent magnetic material and Rhometal formulated with mass ratio 8:1, magnetic fillers magnetic energy product is 50MGOe, filler granularity is 6000 μm, micro-electrolysis stuffing is made up of aluminium-carbon filler material, filler granularity is 1200 μm, and in filler, the mass ratio of aluminium and carbon is 1.2:1; Carrier filler take fluorinated ethylene propylene as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.05g fluorinated ethylene propylene in 1g gac;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 1.5V, and current density is 20mA/cm
2, the spent air temperture passed into is 45 DEG C;
Add ammonium phosphite in bacterial classification needed for the process waste gas that step (1) obtains and do carbon nitrogen and phosphorus liquid, the mass ratio of C:N:P in solution is made to be that 30:5:1 makes biofilm solution, solution is passed into biological packing tower from top to bottom and carry out circulation biofilm, within every two days, change a biofilm solution; Pass into volume ratio from bottom to top to biological packing tower is the pending waste gas of 1:1 and the mixed gas of air simultaneously; Observe filling surface mycoderm growing state every day, when waste gas after processing reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of waste gas is sprayed
At normal temperatures, close outlet valve 8, be input to reactor by waste gas from intake valve 7, and lead to permanent DC voltage-stabilizing electricity to electrode pair, voltage is 1.5V, and current density is 20mA/cm
2, the waste gas after purification is discharged from air outlet valve 4;
After the present embodiment process, after process, the average emission solubility of the poisonous and harmful organic exhaust gas of spraying factory is: toluene 9 ~ 11mg/m
3, butanone 0.5 ~ 0.7mg/m
3, acetone 0.4 ~ 0.6mg/m
3, N-BUTYL ACETATE 1.9 ~ 2.3mg/m
3, vinyl acetic monomer 1.8 ~ 2.3mg/m
3.
Embodiment 6: electromagnetism cooperative reinforcing biological packing tower purification semiconductor production organic exhaust gas, concrete operations are as follows:
1, the present embodiment handling object is identical with embodiment 5, and biologic packing material tower structure is also identical.
2, the concrete using method of the present invention is as follows:
(1) active sludge of Treatment of Coking Effluent factory preliminary sedimentation tank is chosen as bacterial classification, and be placed in culture apparatus, pending dilution waste gas is successively passed in culture apparatus, this pending dilution waste gas is mixed by the volume ratio of 1:100 pending waste gas and air, add ammonium phosphite simultaneously and do nitrogen and phosphorus liquid, make BOD in whole culture medium
5: the mass ratio of N:P is 115:3:1; Within every two days afterwards, change the pending waste gas that increases progressively successively of concentration and carry out continuous domestication, pending exhaust gas concentration be followed successively by 1:90,1:80 ... 1:30,1:20,1:10,1:1; When after process, waste gas reaches discharging standards, and when the OD600 of bacterium liquid reaches 1 in culture apparatus, namely obtain the bacterial classification of process needed for waste gas;
Magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in reactor with 0.1:3:3 ratio, wherein magnetic fillers with iron-chromium-cobalt permanent magnet material and soft magnetic ferrite formulated with mass ratio 1:4, magnetic fillers magnetic energy product is 20MGOe, filler granularity is 2000 μm, micro-electrolysis stuffing is made up of magnesium-carbon filler material, filler granularity is 800 μm, and in filler, the mass ratio of magnesium and carbon is 1:1; Carrier filler take fluorinated ethylene propylene as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.25g fluorinated ethylene propylene in 1g gac;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 2V, and current density is 25mA/cm
2, the spent air temperture passed into is 35 DEG C;
Add ammonium phosphite in bacterial classification needed for the process waste gas that step (1) obtains and do carbon nitrogen and phosphorus liquid, the mass ratio of C:N:P in solution is made to be that 20:2:1 makes biofilm solution, solution is passed into biological packing tower from top to bottom and carry out circulation biofilm, within every two days, change a biofilm solution; Pass into volume ratio from bottom to top to biological packing tower is the pending waste gas of 1:1 and the mixed gas of air simultaneously; Observe filling surface mycoderm growing state every day, when waste gas after processing reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of waste gas is sprayed
At normal temperatures, close outlet valve 8, be input to reactor by waste gas from intake valve 7, and lead to permanent DC voltage-stabilizing electricity to electrode pair, voltage is 2V, and current density is 25mA/cm
2, the waste gas after purification is discharged from air outlet valve 4;
After the present embodiment process, after process, the average emission solubility of the poisonous and harmful organic exhaust gas of spraying factory is: toluene 15 ~ 18mg/m
3, butanone 0.6 ~ 0.9mg/m
3, acetone 0.6 ~ 0.7mg/m
3, N-BUTYL ACETATE 3 ~ 3.8mg/m
3, vinyl acetic monomer 1.8 ~ 2mg/m
3.
Embodiment 7: electromagnetism cooperative reinforcing biological packing tower purification semiconductor production organic exhaust gas, concrete operations are as follows:
1, the organic exhaust gas that the present embodiment is produced for certain semiconductor factory processes, and its main poisonous and harmful organic exhaust gas concentration is: dimethylbenzene 150 ~ 250mg/m
3, methylethylketone 100 ~ 300mg/m
3, acetone 150 ~ 300mg/m
3, N-BUTYL ACETATE 200 ~ 400mg/m
3, air quantity is 3000 ~ 5000m
3/ h, temperature 30 ~ 50 DEG C.
The top that apparatus of the present invention comprise its reactor body 1 is provided with air outlet valve 4 and water intaking valve 5; Porous supporting plate 3 is set in reactor body 1, porous supporting plate 3 is equipped with reactor filler 2; Six pairs of platinized electrodes 6 are set in reactor body 1; Intake valve 7, outlet valve 8 and recoil water valve 9 are set below reactor body 1; Wherein electrode pair adopts series connection over-over mode to be disposed in reactor body with 15cm; Owing to being process waste gas, then the water valve 9 that recoils is in closing condition.This reactor height 3m, it is highly 1.8m that reactor filler is loaded.
2, the concrete using method of the present invention is as follows:
Choose Treatment of Coking Effluent factory preliminary sedimentation tank active sludge as bacterial classification, and be placed in culture apparatus, pending dilution waste gas is successively passed in culture apparatus, this pending dilution waste gas is mixed by the volume ratio of 1:100 pending waste gas and air, interpolation urea and ammonium phosphate do nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 125:2:1; Within every two days afterwards, change the pending waste gas that increases progressively successively of concentration and carry out continuous domestication, pending exhaust gas concentration be followed successively by 1:90,1:80 ... 1:30,1:20,1:10,1:1; When after process, waste gas reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.8 in culture apparatus, namely obtain the bacterial classification of process needed for waste gas;
Magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in reactor with 0.5:2:1 ratio, wherein magnetic fillers with pure iron and nickel aluminium Co permanent magnetic alloy formulated with mass ratio 12:1, magnetic fillers magnetic energy product is 40MGOe, filler granularity is 4000 μm, micro-electrolysis stuffing is made up of iron-carbon filler material, filler granularity is 1400 μm, and in filler, the mass ratio of iron and carbon is 1:1; Carrier filler take calcium oxide as linking agent, and both are mixed obtained carrier filler by the ratio of adding 0.3g calcium oxide in 1g plastics;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 3V, and current density is 15mA/cm
2, the spent air temperture passed into is 45 DEG C;
Urea is added and ammonium phosphate does carbon nitrogen and phosphorus liquid in bacterial classification needed for the process waste gas that step (1) obtains, the mass ratio of C:N:P in solution is made to be that 25:3:1 makes biofilm solution, solution is passed into biological packing tower from top to bottom and carry out circulation biofilm, within every two days, change a biofilm solution; Pass into volume ratio from bottom to top to biological packing tower is the pending waste gas of 1:1 and the mixed gas of air simultaneously; Observe filling surface mycoderm growing state every day, when waste gas after processing reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) semiconductor waste gas process
At normal temperatures, close outlet valve 8, be input to reactor by waste gas from water intaking valve 7, and lead to permanent alternating-current pulse electricity to electrode pair, voltage is 3V, and current density is 15mA/cm
2, the waste gas after purification is discharged from air outlet valve 4;
After the present embodiment process, the average emission solubility of the poisonous and harmful organic exhaust gas of the semiconductor fabrication facility after process is: dimethylbenzene 5.8 ~ 6.2mg/m
3, methylethylketone 4.5 ~ 4.7mg/m
3, acetone 5.4 ~ 5.6mg/m
3, N-BUTYL ACETATE 1.9 ~ 2.3mg/m
3.
Claims (6)
1. an electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method, is characterized in that carrying out as follows:
(1) tamed strain
A, process waste water strain domestication
Choose pending poisonous and harmful organic wastewater active sludge as initial bacterial classification, active sludge is placed in culture apparatus and carries out aeration, add the pending dilution waste water equal with active sludge quality, this pending dilution waste water with pending waste water and distilled water formulated with the volume ratio of 1:100, add nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100 ~ 125:2 ~ 5:1; The diluted pending waste water solution changed concentration and raise successively for every two days afterwards, what finally add is pending waste water stoste, carries out bacterial classification continuous domestication; When processed waste water reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.6 ~ 1 in culture apparatus, namely obtain the bacterial classification of process needed for waste water;
B, process waste gas strain domestication
Choosing coking chemical waste water active sludge as initial bacterial classification is placed in culture apparatus, pending dilution waste gas is successively passed in culture apparatus, this pending dilution waste gas is mixed by the volume ratio of 1:100 pending waste gas and air, add nitrogen and phosphorus liquid simultaneously, make BOD in whole culture medium
5: the mass ratio of N:P is 100 ~ 125:2 ~ 5:1; Within every two days afterwards, change the pending waste gas that increases progressively successively of concentration and carry out continuous domestication, pending exhaust gas concentration be followed successively by 1:90,1:80 ..., 1:30,1:20,1:10,1:1; When after process, waste gas reaches discharging standards, and when the OD600 of bacterium liquid reaches 0.6 ~ 1 in culture apparatus, namely obtain the bacterial classification of process needed for waste gas;
(2) magnetic fillers, micro-electrolysis stuffing, carrier filler are packed in biological packing tower with the ratio of mass ratio 0.1 ~ 1.5:0.1 ~ 3:1 ~ 3, and more than one pair of paired electrode is installed in biological packing tower;
(3) carry out biofilm process to biological packing tower, biofilm is simultaneously to the electrifying electrodes in biological packing tower, and impressed voltage is 0.1 ~ 5V, and current density is 1 ~ 40mA/cm
2, the waste water passed into and spent air temperture are 20 ~ 50 DEG C;
The biological packing tower biofilm of a, process waste water
Add the pending waste water of same volume in bacterial classification needed for the process waste water that step (1) obtains, and add nitrogen and phosphorus liquid, make solution B OD
5: the mass ratio of N:P is that 100 ~ 125:2 ~ 5:1 makes biofilm solution; Top-down for biofilm solution passing in biological packing tower is carried out circulation biofilm, within during biofilm every two days, changes a biofilm solution, aeration is carried out to biological packing tower from bottom to top simultaneously;
The biological packing tower biofilm of b, process waste gas
Carbon nitrogen and phosphorus liquid is added in bacterial classification needed for the process waste gas that step (1) obtains, the mass ratio of C:N:P in solution is made to be that 20 ~ 30:2 ~ 5:1 makes biofilm solution, solution is passed into biological packing tower from top to bottom and carry out circulation biofilm, within every two days, change a biofilm solution; Pass into volume ratio from bottom to top to biological packing tower is the pending waste gas of 1:1 and the mixed gas of air simultaneously;
Observe filling surface mycoderm growing state every day, when processed waste water or waste gas reach discharging standards and microbial film well-grown, biofilm are stable do not come off time, namely complete biofilm;
(4) process of poisonous and harmful organic pollutant
Pending waste water or waste gas are passed into biological packing tower, and the waste water passed into and spent air temperture are 20 ~ 50 DEG C, and simultaneously to the electrifying electrodes in biological packing tower, impressed voltage is 0.1 ~ 5V, and current density is 1 ~ 40mA/cm
2, degrade through the purification of biological packing tower, namely obtain processed waste water or waste gas.
2. electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method according to claim 1, it is characterized in that: magnetic fillers is that permanent magnet material filler is or/and soft magnetic materials filler, magnetic fillers magnetic energy product is 0.6 ~ 59MGOe, and filler granularity is 100 ~ 8000 μm.
3. electromagnetism cooperative reinforcing biological packing tower according to claim 2 purification poisonous and harmful organic pollutant method, is characterized in that: permanent magnetism filler is that one or more in NdFeB rear-earth alloy, Al-Ni-Co permanent magnet material, iron-chromium-cobalt permanent magnet material, barium ferrite permanent magnet material, iron strontium oxide permanent magnetic material are arbitrarily than mixture.
4. electromagnetism cooperative reinforcing biological packing tower according to claim 2 purification poisonous and harmful organic pollutant method, is characterized in that: soft magnetic materials is that one or more in pure iron, soft steel, iron silicon alloy, ferro-aluminium, iron silicon aluminum alloy, Rhometal, ferrocobalt, soft magnetic ferrite are arbitrarily than mixture.
5. electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method according to claim 1, it is characterized in that: micro-electrolysis stuffing material is that one or more in iron-carbon filler material, iron/copper filler material, zinc-carbon filler material, aluminium-carbon filler material, magnesium-carbon filler material are arbitrarily than mixture, filler granularity is 100 ~ 3000 μm, and in filler material, the mixing quality ratio of two kinds of raw materials is 1.5 ~ 1:1.
6. electromagnetism cooperative reinforcing biological packing tower purification poisonous and harmful organic pollutant method according to claim 1, it is characterized in that: carrier filler is made up of carrier and linking agent, wherein carrier is one or more in gac, peat, yarn fabric, the residual body of cauline leaf root of plant, plastics; Linking agent is one or more of fluorinated ethylene propylene, alginates, calcium oxide, calcium hydroxide etc., containing linking agent 0.05 ~ 0.5g in 1g carrier filler.
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| CN108856240A (en) * | 2018-05-31 | 2018-11-23 | 昆明理工大学 | Electromagnetism strengthens the method and device of heavy metal and POPs in removing debirs |
| CN109173696A (en) * | 2018-09-19 | 2019-01-11 | 浙江工业大学 | A kind of magnetic field-intensification liquid phase scrubbing combines the method for biodegradable organic exhaust gas |
| CN110801678A (en) * | 2019-11-19 | 2020-02-18 | 杭州小橙工业设计有限公司 | Dandelion-like self-dropping type filtering device for purifying heavily-polluted waste gas |
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| CN108856240A (en) * | 2018-05-31 | 2018-11-23 | 昆明理工大学 | Electromagnetism strengthens the method and device of heavy metal and POPs in removing debirs |
| CN109173696A (en) * | 2018-09-19 | 2019-01-11 | 浙江工业大学 | A kind of magnetic field-intensification liquid phase scrubbing combines the method for biodegradable organic exhaust gas |
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| CN110801678B (en) * | 2019-11-19 | 2021-07-16 | 温岭市亚超童鞋业有限公司 | Dandelion-like self-dropping type filtering device for purifying heavily-polluted waste gas |
| CN112390478A (en) * | 2020-12-28 | 2021-02-23 | 昆明理工大学 | Device for efficiently treating aged landfill leachate through biological membrane and electric flocculation |
| CN112759067A (en) * | 2021-02-03 | 2021-05-07 | 昆明理工大学 | Method and device for electromagnetic enhanced biological treatment of organic wastewater |
| CN113599998A (en) * | 2021-07-20 | 2021-11-05 | 上海野马环保设备工程有限公司 | Preparation method of wet garbage compost biological deodorant |
| CN113623805A (en) * | 2021-07-30 | 2021-11-09 | 重庆美的制冷设备有限公司 | Air quality control method, device, equipment and storage medium |
| CN113623805B (en) * | 2021-07-30 | 2022-12-20 | 重庆美的制冷设备有限公司 | Air quality control method, device, equipment and storage medium |
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