CN108373237A - A kind of processing unit of pesticide wastewater - Google Patents
A kind of processing unit of pesticide wastewater Download PDFInfo
- Publication number
- CN108373237A CN108373237A CN201810247136.0A CN201810247136A CN108373237A CN 108373237 A CN108373237 A CN 108373237A CN 201810247136 A CN201810247136 A CN 201810247136A CN 108373237 A CN108373237 A CN 108373237A
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- China
- Prior art keywords
- pond
- reactor
- catalytic ozonation
- processing unit
- tail gas
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- 239000002351 wastewater Substances 0.000 title claims abstract description 70
- 239000000575 pesticide Substances 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 title claims abstract description 23
- 230000003197 catalytic effect Effects 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000006385 ozonation reaction Methods 0.000 claims abstract description 38
- 230000003647 oxidation Effects 0.000 claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 33
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 238000010364 biochemical engineering Methods 0.000 claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 10
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000000746 purification Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000011790 ferrous sulphate Substances 0.000 claims description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 9
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001882 dioxygen Inorganic materials 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 21
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- WCXDHFDTOYPNIE-RIYZIHGNSA-N (E)-acetamiprid Chemical compound N#C/N=C(\C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-RIYZIHGNSA-N 0.000 description 1
- PXMNMQRDXWABCY-UHFFFAOYSA-N 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol Chemical compound C1=NC=NN1CC(O)(C(C)(C)C)CCC1=CC=C(Cl)C=C1 PXMNMQRDXWABCY-UHFFFAOYSA-N 0.000 description 1
- 239000005875 Acetamiprid Substances 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000005839 Tebuconazole Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000010914 pesticide waste Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2101/306—Pesticides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/784—Diffusers or nozzles for ozonation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- 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
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- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
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- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to a kind of processing units of pesticide wastewater.The device is sequentially connected by raw material waterwater entrance, waste water grille well, wastewater equalization pond, Fenton oxidation pond, buffer pool, catalytic ozonation reactor, outlet is equipped in the middle part of catalytic ozonation reactor to connect with tail gas catalyzed absorption integral reactor, tail gas catalyzed absorption integral reactor is equipped with exhaust port, catalytic ozonation reactor is connect with effluent settling chamber, and effluent settling chamber connect with modular bio processing pond, UF membrane filtering ponds, active sand filter, water purification collecting pit successively.Apparatus of the present invention can reach the purpose of efficient process pesticide wastewater.In addition, the present invention can be with the ozone concentration of the entire technological process of on-line checking inlet and outlet, and be combined by catalytic oxidation and the means of physical absorption using tail gas catalyzed absorption integral reactor, its tail gas of strict guarantee is up to standard, avoids the secondary pollution problem in processing procedure.
Description
Technical field
The invention belongs to the technical fields of environment protection sewage processing, and in particular to a kind of processing dress of processing pesticide wastewater
It sets.
Background technology
It showing according to statistics, China's 199.5 hundred million tons of discharged volume of industrial waste water in 2015 accounts for the 27.1% of wastewater emission amount,
293.5 ten thousand tons of COD discharge capacity in industrial wastewater account for the 13.2% of COD total emission volumn, industrial wastewater ammonia nitrogen
21.7 ten thousand tons of discharge capacity, accounts for the 9.4% of ammonia nitrogen total emission volumn.And it with the fast development of various new materials or technique and answers
With foring a large amount of more complicated, more bio-refractory waste water.Especially China is as a Pesticide use big country, pesticide
The case where producing waste water is increasingly complex.The feature of pesticide wastewater maximum is exactly that its waste water water is small, toxicity is big, compared with high toxicity
With the pesticide wastewater of salinity microorganism can not be survived, traditional treatment process based on biodegradation is proposed
It is very little to handle pesticide wastewater up to standard at present for stern challenge.
In order to overcome limitation of the biodegradation method in terms of handling pesticide wastewater, it is contemplated that catalytic ozonation
Can significant increase hydroxyl radical free radical production quantity and rate, have to organic matter difficult to degrade or low degradation efficiency and higher go
Except rate, the catalytic ozonation and its related process of relatively low cost and high treatment efficiency obtain more and more extensive approval and answer
With.The catalysis of catalyst and characterization of adsorption are combined with the strong oxidation performance of ozone simultaneously, and organic matter degradation is made to obtain more complete, reaction
More rapidly thoroughly.
Although catalytic ozonation can be anti-by macromolecular, the catalysis oxidation for being difficult to biodegradable organic matter and ozone
It answers, most of pollutant is oxidized to carbon dioxide and water, but single catalytic ozonation technique is difficult to realize complicated pesticide
Waste water is completely up to standard.
Invention content
The present invention is to make up prior art deficiency, provides a kind of processing unit of pesticide wastewater, efficiently solves pesticide
Produce waste water.
The present invention uses following technical scheme：Raw material waterwater entrance, waste water grille well, wastewater equalization pond, Fenton oxidation pond,
Buffer pool, catalytic ozonation reactor are sequentially connected, and are equipped with on catalytic ozonation reactor connecting line in buffer pool
Ozone inlet is equipped with gas-liquid distributor in catalytic ozonation reactor head, is equipped in the middle part of catalytic ozonation reactor
Outlet is connect by pipeline with tail gas catalyzed absorption integral reactor bottom, is set at the top of tail gas catalyzed absorption integral reactor
Have an exhaust port, catalytic ozonation reactor bottom is equipped with outlet and is connect with effluent settling chamber, effluent settling chamber successively with
Modular bio processing pond, UF membrane filtering ponds, active sand filter, the connection of water purification collecting pit, at modular bio processing pond bottom
Portion is equipped with mud discharging mouth.
Further, I A of water circulating pump is equipped on Fenton oxidation pond and buffer pool connecting line；In buffer pool and ozone
Catalyst oxidation reactor connecting line is equipped with II B of water circulating pump；In effluent settling chamber and modular bio processing pond connecting tube
Road is equipped with III C of water circulating pump；Water circulating pump IV is equipped in modular bio processing pond and UF membrane filtering ponds connecting line
D。
Further, it is equipped with one section of entrance of air in wastewater equalization pond bottom.
Further, two sections of entrances of air are equipped in modular bio processing pond bottom.
Further, three sections of entrances of air are equipped in UF membrane filtering ponds bottom.
Further, dioxygen water inlet, ferrous sulfate solution entrance and sulfuric acid entrance are equipped at the top of Fenton oxidation pond.
Further, it is equipped with gaseous sample acquisition port a in the top side of catalytic ozonation reactor.
Further, the top side of tail gas catalyzed absorption integral reactor is equipped with gaseous sample acquisition port b.
The present invention makes full use of catalytic oxidation technologies significantly to promote the oxidability of ozone.Divide greatly for high difficult to degrade
Son is translated into more tractable small-molecule substance, and by catalysis oxidation characteristic, divide first by catalytic ozonation
Solution is at not biodegradable organic constitution in most raw material waste water, at the biochemistry in conjunction with subsequent module formula biological treatment tank
The treatment process such as the sand filtration of reason, the film process of UF membrane filtering ponds and active sand filter, reach efficient process pesticide wastewater
Purpose.In addition, the present invention has also fully considered the detection and processing of the ozone more than needed and newly-generated gas that introduce technical process,
Can be with the ozone concentration of the entire technological process of on-line checking inlet and outlet, and led to using tail gas catalyzed absorption integral reactor
The means for crossing catalytic oxidation and physical absorption are combined, its tail gas of strict guarantee is up to standard, avoids processing procedure well
In secondary pollution problem.
Description of the drawings
Fig. 1 is the structural schematic diagram of the processing unit of pesticide wastewater.
Wherein, 1, raw material waterwater entrance, 2, one section of entrance of air, 3, dioxygen water inlet, 4, ferrous sulfate solution entrance, 5,
Sulfuric acid entrance, 6, ozone inlet, 7, exhaust port, 8, two sections of entrances of air, 9, mud discharging mouth, 10, three sections of entrances of air, 101,
Waste water grille well, 102, wastewater equalization pond, 103, Fenton oxidation pond, 104, buffer pool, 105, catalytic ozonation reactor,
106, effluent settling chamber, 107, tail gas catalyzed absorption integral reactor, 108, modular bio processing pond, 109, UF membrane mistake
Filter tank, 110, active sand filter, 111, water purification collecting pit, A, water circulating pump I, B, water circulating pump II, D, C, water circulating pump III follow
Ring water pump IV, a, gaseous sample acquisition port I, b gaseous samples acquisition port II.
Specific implementation mode
The present invention is described in detail below by specific embodiment, but is not limited the scope of the invention.Unless otherwise specified, originally
Experimental method is conventional method used by invention, and experiment equipment used, material, reagent etc. commercially obtain.
As shown in Figure 1, a kind of processing unit of pesticide wastewater, including raw material waterwater entrance 1, waste water grille well 101,
Wastewater equalization pond 102, Fenton oxidation pond 103, buffer pool 104, catalytic ozonation reactor 105 are sequentially connected；In waste water tune
It saves 102 bottom of pond and is equipped with one section of entrance 2 of air；Water circulating pump is equipped on Fenton oxidation pond 103 and 104 connecting line of buffer pool
ⅠA；It is equipped with dioxygen water inlet 3, ferrous sulfate solution entrance 4 and sulfuric acid entrance 5 at 103 top of Fenton oxidation pond；In buffer pool
104 are equipped with II B of water circulating pump with 105 connecting line of catalytic ozonation reactor；In buffer pool 104 and catalytic ozonation
105 connecting line of reactor is equipped with ozone inlet 6, and gaseous sample is equipped in 105 top side of catalytic ozonation reactor
Acquisition port a is equipped with gas-liquid distributor, at 105 middle part of catalytic ozonation reactor at 105 top of catalytic ozonation reactor
It is connect with tail gas catalyzed 107 bottom of absorption integral reactor by pipeline equipped with outlet, tail gas catalyzed absorption integral type reaction
107 top of device is equipped with exhaust port 7, and top side is equipped with gaseous sample acquisition port b.105 bottom of catalytic ozonation reactor
Portion be equipped with outlet connect with effluent settling chamber 106, effluent settling chamber 106 successively with modular bio processing pond 108, UF membrane mistake
Filter tank 109, active sand filter 110, water purification collecting pit 111 connect；In effluent settling chamber 106 and modular bio processing pond 108
Connecting line is equipped with III C of water circulating pump；It is equipped with two sections of entrances of mud discharging mouth 9 and air in 108 bottom of modular bio processing pond
8.IV D of water circulating pump is equipped in modular bio processing pond 108 and 109 connecting line of UF membrane filtering ponds, in UF membrane mistake
109 bottom of filter tank is equipped with three sections of entrances 10 of air.
The treatment process of pesticide wastewater of the present invention is as follows：
(1) pesticide wastewater enters waste water grille well 101 through raw material waterwater entrance 1, passes through its grid channel retention portion
Divide pollutant, while preventing the water circulating pump in subsequent technique and line clogging.Waste water is adjusted by waste water grille well 101 and waste water
Foot passage between pond 102 enters wastewater equalization pond 102；Meanwhile the bottom of wastewater equalization pond 102 comes from one section of entrance of air
2 tangential introduction of air enters wastewater equalization pond 102, carries out strong disturbance to waste water, has the function that uniform waste water quality.
(2) waste water for passing through air agitation mixing enters Fenton oxidation pond 103 through wastewater equalization pond 102, in Fenton oxidation
In pond 103, hydrogen peroxide occurs Fenton oxidation with the mixed solution of ferrous sulfate and waste water and reacts, by part oxidation of organic compounds
For inorganic states.The hydrogen peroxide concentration that dioxygen water inlet 3 is added is 20-30%, the ferrous sulfate that ferrous sulfate solution entrance 4 is added
Solution concentration 15-35%；The molar ratio of hydrogen peroxide and ferrous sulfate controls between 2-5, while detecting in Fenton oxidation pond 103
The pH value of waste water is 40-98% sulfuric acid solutions by 5 implantation concentration of sulfuric acid entrance, by the pH value control of waste water in Fenton oxidation pond 103
System is in 3-6.
(3) it is handled by preliminary oxidation and the waste water for regulating pH value will by I A of water circulating pump by Fenton oxidation pond 103
It inputs buffer pool 104, is stopped in buffer pool 104 so that water quality, water temperature of waste water etc. further homogenize after preliminary treatment.
(4) homogenize after waste water by II B of the water circulating pump concentration 5-30mg/L for inputting it with ozone inlet 6 ozone
It is mixed in pipeline, and anti-even into catalytic ozonation by the gas-liquid distributor at 105 top of catalytic ozonation reactor
It answers inside device 105, it is made to be come into full contact with the catalyst in catalytic ozonation reactor 105, occur in catalyst surface useless
The catalytic oxidation of water and ozone, by catalytic oxidation by most of macromolecular, to be difficult to biodegradable organic matter dirty
Dye object is oxidized to carbon dioxide and water.105 top loading catalyst of catalytic ozonation reactor is equipped with gas below catalyst
Liquid separating component.105 top of catalytic ozonation reactor is equipped with I a of gaseous sample acquisition port.
(5) gaseous product that unreacted ozone and catalytic oxidation generate is by catalytic ozonation reactor 105
Portion outlet flows into tail gas catalyzed absorption integral reactor 107, and tail gas catalyzed absorption integral reactor 107 divides two sections,
Epimere is equipped with granule adsorbent, can adsorb unreacted ozone；Hypomere is equipped with identical in catalytic ozonation reactor 105
Catalyst；Catalytic oxidation, reaction occur for ozone and the portion gas product generated in catalytic ozonation reactor 105
Reaction mixture afterwards carries out physical absorption through granule adsorbent, and the tail gas for reaching discharge standard is discharged by exhaust port 7；It urges
Change the waste water after oxidation and effluent settling chamber 106 is flowed by 105 outlet at bottom of catalytic ozonation reactor.In tail gas catalyzed absorption
107 top of integral reactor is equipped with II b of gaseous sample acquisition port.
(6) waste water in effluent settling chamber 106 after catalytic ozonation by III C injection module formula biologies of water circulating pump at
Manage pond 108；In modular bio processing pond 108 filler, microorganism Absorption Growth on filler are fixed equipped with fibrous type；In mould
108 bottom of block formula biological treatment tank is equipped with two sections of entrances 8 of air, keeps the aerobic environment of water body.By biochemical treatment mode into
One step purifies waste water, and the sludge produced in processing procedure is discharged by 108 bottom mud discharging mouth 9 of modular bio processing pond.
(7) waste water of modular bio processing pond 108 injects UF membrane filtering ponds 109 by IV D of water circulating pump；And in sky
Three sections of entrances 10 of gas are passed through partial air to ensure constant pressure and be stirred to waste water, and waste water is under the action of film into one
Walk isolation of purified.
(8) waste water in UF membrane filtering ponds 109 flows into active sand filter tank 110, and active sand filter 110 uses particulate quartz
Sand does filtrate, and diameter range is between 1-8mm.Adverse current is filtered by filter bed by active sand filter 110 flow from bottom to top
Water afterwards flows into water purification collecting pit 111 through overflow port, is finally completed pesticide wastewater in the 110 top aggregation of active sand filter
Purified treatment.
Application examples 1
Handle Tebuconazole waste water 20m3/ h, CODcr18000mg/L, ammonia nitrogen 500mg/L.It is useless with the pesticide producing of the present invention
The treatment process of water is run 10 hours by on-line continuous, and the mode for stopping processing 1 hour completes a wastewater treatment process.
The pH value in Fenton oxidation pond by sulfuric acid solution adjusting control 4 or so, 30% hydrogen peroxide inventory be 120Kg/h, 30%
The inventory of ferrous sulfate is 100Kg/h；Ozone concentration is 15mg/L, flow 150m3/h.One is completed by above-mentioned flow
After batch operation, measuring purified water index is：CODcr≤200mg/L, ammonia nitrogen≤50mg/L.
Application examples 2
Handle Acetamiprid waste water 10m3/ h, CODcr25000mg/L, ammonia nitrogen 800mg/L.It is useless with the pesticide producing of the present invention
The treatment process of water is run 10 hours by on-line continuous, and the mode for stopping processing 1 hour completes a wastewater treatment process.
The pH value in Fenton oxidation pond is 60Kg/h, 30% sulphur in the inventory of 5 or so, 30% hydrogen peroxide by sulfuric acid solution adjusting control
Sour ferrous inventory is 50Kg/h；Ozone concentration is 15mg/L, flow 100m3/h.One batch is completed by above-mentioned flow
After secondary operation, measuring purified water index is：CODcr≤180mg/L, ammonia nitrogen≤60mg/L.
The preferable specific implementation mode of the above, only the invention, but the protection domain of the invention is not
It is confined to this, any one skilled in the art is in the technical scope that the invention discloses, according to the present invention
The technical solution of creation and its inventive concept are subject to equivalent substitution or change, should all cover the invention protection domain it
It is interior.
Claims (8)
1. a kind of processing unit of pesticide wastewater, which is characterized in that raw material waterwater entrance (1), waste water grille well (101),
Wastewater equalization pond (102), Fenton oxidation pond (103), buffer pool (104), catalytic ozonation reactor (105) are sequentially connected,
Ozone inlet (6) is equipped on buffer pool (104) and catalytic ozonation reactor (105) connecting line, in ozone catalytic oxygen
Change and be equipped with gas-liquid distributor at the top of reactor (105), outlet is equipped in the middle part of catalytic ozonation reactor (105) and passes through pipeline
It connect with tail gas catalyzed absorption integral reactor (107) bottom, is equipped at the top of tail gas catalyzed absorption integral reactor (107)
Exhaust port (7), catalytic ozonation reactor (105) bottom are equipped with outlet and are connect with effluent settling chamber (106), and waste water is heavy
Pond (106) are dropped to receive with modular bio processing pond (108), UF membrane filtering ponds (109), active sand filter (110), water purification successively
Ji Chi (111) connections are equipped with mud discharging mouth (9) in modular bio processing pond (108) bottom.
2. the processing unit of pesticide wastewater according to claim 1, which is characterized in that in Fenton oxidation pond (103)
It is equipped with water circulating pump I (A) with buffer pool (104) connecting line；In buffer pool (104) and catalytic ozonation reactor
(105) connecting line is equipped with water circulating pump II (B)；It is connect with modular bio processing pond (108) in effluent settling chamber (106)
Pipeline is equipped with water circulating pump III (C)；In modular bio processing pond (108) and UF membrane filtering ponds (109) connecting line
Equipped with water circulating pump IV (D).
3. the processing unit of pesticide wastewater according to claim 1, which is characterized in that in wastewater equalization pond (102)
Bottom is equipped with one section of entrance (2) of air.
4. the processing unit of pesticide wastewater according to claim 1, which is characterized in that in modular bio processing pond
(108) bottom is equipped with two sections of entrances (8) of air.
5. the processing unit of pesticide wastewater according to claim 1, which is characterized in that in UF membrane filtering ponds
(109) bottom is equipped with three sections of entrances (10) of air.
6. the processing unit of pesticide wastewater according to claim 1, which is characterized in that in Fenton oxidation pond (103)
Top is equipped with dioxygen water inlet (3), ferrous sulfate solution entrance (4) and sulfuric acid entrance (5).
7. the processing unit of pesticide wastewater according to claim 1, which is characterized in that reacted in catalytic ozonation
The top side of device (105) is equipped with gaseous sample acquisition port (a).
8. the processing unit of pesticide wastewater according to claim 1, which is characterized in that tail gas catalyzed absorption integral type
The top side of reactor (107) is equipped with gaseous sample acquisition port (b).
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| CN201810247136.0A CN108373237B (en) | 2018-03-23 | 2018-03-23 | Pesticide waste water's processing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316861A (en) * | 2019-06-24 | 2019-10-11 | 广西博世科环保科技股份有限公司 | Strengthen up flow type multiphase wastewater oxidation treatment process and processing system |
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| CN102951755A (en) * | 2012-11-23 | 2013-03-06 | 南京格洛特环境工程有限公司 | Processing method and processing equipment of rear earth wastewater |
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| CN110316861A (en) * | 2019-06-24 | 2019-10-11 | 广西博世科环保科技股份有限公司 | Strengthen up flow type multiphase wastewater oxidation treatment process and processing system |
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Application publication date: 20180807 Assignee: Dalian Kaichang Environmental Engineering Co.,Ltd. Assignor: DALIAN University Contract record no.: X2023210000247 Denomination of invention: A treatment device for pesticide production wastewater Granted publication date: 20200922 License type: Common License Record date: 20231129 |