CN113998809A - Abamectin wastewater treatment method - Google Patents
Abamectin wastewater treatment method Download PDFInfo
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- CN113998809A CN113998809A CN202111186873.2A CN202111186873A CN113998809A CN 113998809 A CN113998809 A CN 113998809A CN 202111186873 A CN202111186873 A CN 202111186873A CN 113998809 A CN113998809 A CN 113998809A
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- 239000005660 Abamectin Substances 0.000 title claims abstract description 59
- IBSREHMXUMOFBB-JFUDTMANSA-N 5u8924t11h Chemical compound O1[C@@H](C)[C@H](O)[C@@H](OC)C[C@@H]1O[C@@H]1[C@@H](OC)C[C@H](O[C@@H]2C(=C/C[C@@H]3C[C@@H](C[C@@]4(O3)C=C[C@H](C)[C@@H](C(C)C)O4)OC(=O)[C@@H]3C=C(C)[C@@H](O)[C@H]4OC\C([C@@]34O)=C/C=C/[C@@H]2C)/C)O[C@H]1C.C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 IBSREHMXUMOFBB-JFUDTMANSA-N 0.000 title claims abstract description 58
- 229950008167 abamectin Drugs 0.000 title claims abstract description 58
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 67
- 239000002351 wastewater Substances 0.000 claims abstract description 62
- 230000015271 coagulation Effects 0.000 claims abstract description 27
- 238000005345 coagulation Methods 0.000 claims abstract description 27
- 238000000197 pyrolysis Methods 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 12
- 239000000701 coagulant Substances 0.000 claims description 26
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- 239000002920 hazardous waste Substances 0.000 claims description 6
- 239000000645 desinfectant Substances 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000000249 desinfective effect Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 8
- 239000003463 adsorbent Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 229910021645 metal ion Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000007704 transition Effects 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 description 8
- 230000005764 inhibitory process Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000005708 Sodium hypochlorite Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000029087 digestion Effects 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 4
- 230000004151 fermentation Effects 0.000 description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 231100000086 high toxicity Toxicity 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002207 metabolite Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 235000018262 Arachis monticola Nutrition 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 230000000895 acaricidal effect Effects 0.000 description 1
- 239000000642 acaricide Substances 0.000 description 1
- RRZXIRBKKLTSOM-XPNPUAGNSA-N avermectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 RRZXIRBKKLTSOM-XPNPUAGNSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 229940041514 candida albicans extract Drugs 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000003120 macrolide antibiotic agent Substances 0.000 description 1
- NNKVPIKMPCQWCG-UHFFFAOYSA-N methamidophos Chemical compound COP(N)(=O)SC NNKVPIKMPCQWCG-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229960005322 streptomycin Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 239000012138 yeast extract Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2303/04—Disinfection
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an abamectin wastewater treatment method, which comprises the following steps: (a) adding a medicament into the abamectin wastewater for coagulation treatment; (b) carrying out adsorption treatment on the wastewater after coagulation treatment by adopting oily sludge pyrolysis residues; (c) sterilizing the wastewater after adsorption treatment; the treatment method of the invention adopts the oily sludge pyrolysis residue as the adsorbent, can adsorb and remove the abamectin in the wastewater, can achieve the purposes of changing waste into valuable and treating waste with waste, and has better social, environmental and economic benefits; in addition, the oily sludge pyrolysis residue is mainly in a transition pore structure, and not only can organic matters in water be removed during liquid phase adsorption, but also metal ions can be adsorbed, so that the aims of decoloring and reducing the chemical oxygen demand are fulfilled.
Description
Technical Field
The invention relates to the technical field of wastewater, and particularly relates to an abamectin wastewater treatment method.
Background
Abamectin (Avermectin is called AVM for short) is a novel high-efficiency, low-toxicity, safe and broad-spectrum antibiotic for agricultural and livestock, belongs to macrolide antibiotic insecticides and acaricides, is a fermentation metabolite of soil microorganism streptomycin griseus, and has been widely popularized and applied in the world as a substitute for organophosphorus high-toxicity pesticides such as methamidophos and the like. A large amount of wastewater is generated in the production process of the abamectin, and the wastewater has complex components, high organic matter concentration, high toxicity and deep chromaticity, and belongs to high-concentration organic wastewater which is difficult to treat. Most of the existing processes for treating the abamectin wastewater are anaerobic digestion and aerobic treatment, and because the residual abamectin in the wastewater can have serious inhibition effect on the biological treatment of the wastewater, the physicochemical treatment of the abamectin wastewater is very necessary for eliminating or reducing the inhibition effect of the residual abamectin in the wastewater on the biochemical treatment. Furthermore, with the continuous improvement of the national sewage discharge standard, the abamectin wastewater is difficult to reach the standard after being biologically treated, and the wastewater needs to be deeply treated by matching with other processes.
The abamectin is prepared by inoculating abamectin strain to raw materials such as corn starch, peanut powder, soybean powder, glucose, yeast extract and a small amount of trace elements and the like and fermenting. The discharged wastewater includes: and (3) performing plate-and-frame filter pressing on the fermentation liquor to obtain effluent, equipment flushing water and a small amount of rectification wastewater. The main components of the waste water are culture medium (containing some saccharides, protein, lipid and the like) remained in fermentation liquor, metabolites produced in the fermentation process and a small amount of residual abamectin, the components are complex, the pollutant concentration is high, the COD can reach 50000mg/L, the suspended matters are more, the chroma is higher, the smell is pungent, and the waste water belongs to high-concentration organic waste water. The quality of the wastewater is as follows: COD: 35000-45000, pH: 3.5-4.5, SS: 3000 mg/L-5000 mg/L, ammonia nitrogen: 600 mg/L-800 mg/L, AVM: 195 to 215 mug/L. When the mass concentration of AVM is 25, 50 and 100 mug/L respectively, the AVM respectively shows slight inhibition, obvious inhibition and serious inhibition on anaerobic digestion. In practice, the AVM residual concentration of the wastewater reaches as high as 215 mug/L, which greatly exceeds the bearing capacity of anaerobic digestion, while the anaerobic digestion process is mostly applied in the treatment of high-concentration organic wastewater, and in order to ensure the effect of subsequent biochemical treatment, the abamectin wastewater needs to be pretreated.
At present, although better effects are achieved by applying more anaerobic and aerobic processes, the requirements of higher and higher discharge standards cannot be met, and the problems of difficultly-degradable substances in wastewater and inhibition of biological treatment need to be thoroughly solved by combining the anaerobic and aerobic processes with other processes. But has the defects of high medicament cost, large operation workload, large mud production amount, strict requirements on reaction conditions and the like.
Disclosure of Invention
The invention aims to provide an abamectin wastewater treatment method, which can effectively remove abamectin in wastewater by adopting oil-containing sludge pyrolysis residues as an adsorbent and realize reclamation and harmlessness so as to achieve the effect of treating waste by waste.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides a method for treating abamectin wastewater, which comprises the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment;
(b) carrying out adsorption treatment on the wastewater after coagulation treatment by adopting oily sludge pyrolysis residues;
(c) and (4) disinfecting the wastewater after adsorption treatment.
Preferably, the agents are coagulants and flocculants; the coagulation treatment is to add a coagulant for treatment and add a flocculant for treatment. More preferably, the coagulant is polyaluminum ferric chloride; the flocculating agent is polyacrylamide.
Preferably, the addition amount of the coagulant is 250-350 ppm;
and treating for 15-30 min at 130-160 r/min after the coagulant is added.
Preferably, the adding amount of the flocculating agent is 8-15 ppm;
and treating the flocculant for 50-70 min at a speed of 50-70 r/min after the flocculant is added.
Preferably, the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is 5-8 percent respectively.
Preferably, the first-stage adsorption time and the second-stage adsorption time are respectively 20-50 min.
Preferably, the disinfectant used for disinfection is hypochlorite.
Preferably, the addition amount of the disinfectant is 10-15 ppm, and the disinfection time is 25-40 s.
Preferably, the abamectin wastewater treatment method further comprises the following steps:
separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); the separated mud is treated as hazardous waste.
Preferably, the content of the abamectin in the abamectin wastewater is 195-215 mu g/L;
the abamectin is not detected in the wastewater after the disinfection treatment.
Compared with the prior art, the invention has the beneficial effects that at least:
the treatment method of the invention adopts the oily sludge pyrolysis residue as the adsorbent, can adsorb and remove the abamectin in the wastewater, can achieve the purposes of changing waste into valuable and treating waste with waste, and has better social, environmental and economic benefits; in addition, the oily sludge pyrolysis residue is mainly in a transition pore structure, so that organic matters in water can be removed during liquid phase adsorption, metal ions can be adsorbed, and the aims of decoloring and reducing Chemical Oxygen Demand (COD) are fulfilled.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the following embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
The raw materials used in the examples were as follows:
pyrolysis residue of oily sludge: from oil field oily sludge pyrolysis treatment stations;
coagulant: polyaluminum ferric chloride, commercially available;
flocculating agent: polyacrylamide, commercially available;
example 1
The embodiment is an abamectin wastewater treatment method, which comprises the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment, wherein the medicament is a coagulant and a flocculating agent; the coagulation treatment is to firstly add a coagulant for treatment and add a flocculant for treatment, specifically, the adding amount of the coagulant is 280ppm, the coagulant is added and then treated at 140r/min for 20min, the adding amount of the flocculant is 10ppm, and the flocculant is added and then treated at 60r/min for 60 min;
(b) carrying out adsorption treatment on the wastewater subjected to coagulation treatment by adopting oily sludge pyrolysis residues, wherein the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is respectively 5%; the first-stage adsorption time and the second-stage adsorption time are respectively 50 min;
(c) separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); and treating the separated mud as hazardous waste, and adding sodium hypochlorite into the wastewater after adsorption treatment according to the addition of 12ppm for disinfection for 40 s.
Example 2
The embodiment is an abamectin wastewater treatment method, which comprises the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment, wherein the medicament is a coagulant and a flocculating agent; the coagulation treatment is to firstly add a coagulant for treatment and add a flocculant for treatment, specifically, the adding amount of the coagulant is 300ppm, the coagulant is added and then treated for 25min at 150r/min, the adding amount of the flocculant is 15ppm, and the flocculant is added and then treated for 70min at 50 r/min;
(b) carrying out adsorption treatment on the wastewater subjected to coagulation treatment by adopting oily sludge pyrolysis residues, wherein the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is respectively 7%; the first-stage adsorption time and the second-stage adsorption time are respectively 30 min;
(c) separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); and treating the separated mud as hazardous waste, and adding sodium hypochlorite into the wastewater after adsorption treatment according to the addition of 12ppm for disinfection for 30 s.
Example 3
The embodiment is an abamectin wastewater treatment method, which comprises the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment, wherein the medicament is a coagulant and a flocculating agent; the coagulation treatment is to firstly add a coagulant for treatment and add a flocculant for treatment, specifically, the adding amount of the coagulant is 250ppm, the coagulant is added and then treated for 30min at 160r/min, the adding amount of the flocculant is 15ppm, and the flocculant is added and then treated for 70min at 70 r/min;
(b) carrying out adsorption treatment on the wastewater subjected to coagulation treatment by adopting oily sludge pyrolysis residues, wherein the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is respectively 8%; the first-stage adsorption time and the second-stage adsorption time are respectively 20 min;
(c) separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); and treating the separated mud as hazardous waste, and adding sodium hypochlorite into the waste water subjected to adsorption treatment according to the addition of 12ppm for disinfection for 25 s.
Example 4
The embodiment is an abamectin wastewater treatment method, which comprises the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment, wherein the medicament is a coagulant and a flocculating agent; the coagulation treatment is to firstly add a coagulant for treatment and add a flocculant for treatment, specifically, the adding amount of the coagulant is 350ppm, the coagulant is added and then treated for 15min at 130r/min, the adding amount of the flocculant is 10ppm, and the flocculant is added and then treated for 60min at 60 r/min;
(b) carrying out adsorption treatment on the wastewater subjected to coagulation treatment by adopting oily sludge pyrolysis residues, wherein the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is respectively 6%; the first-stage adsorption time and the second-stage adsorption time are respectively 40 min;
(c) separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); and treating the separated mud as hazardous waste, and adding sodium hypochlorite into the wastewater after adsorption treatment according to the addition of 12ppm for disinfection for 30 s.
Comparative example 1
The comparative example is an abamectin wastewater treatment method, which is basically the same as the treatment method in example 4, and is different only in that the step (b) is as follows:
carrying out adsorption treatment on the wastewater subjected to coagulation treatment by adopting oily sludge pyrolysis residues, wherein the adding amount of the oily sludge pyrolysis residues in the adsorption treatment is 12%; the adsorption time was 80 min.
Examples of the experiments
Obtaining abamectin wastewater, wherein the water quality of the abamectin wastewater is as follows: COD: 42658mg/L, pH: 3.7, SS: 3875mg/L, ammonia nitrogen: 721mg/L, AVM: 212 μ g/L.
The abamectin wastewater is treated according to the treatment methods in the embodiment 4 and the comparative example 1 respectively; then, the quality of the treated wastewater is detected, and the detection result is as follows:
the water quality after the treatment method of the embodiment 4 is as follows: COD: 118.6mg/L, pH: 7.40, SS: 89mg/L, ammonia nitrogen: 44mg/L, AVM: not detected;
the water quality after the treatment method of comparative example 1 was: COD: 317.9mg/L, pH: 6.33, SS: 185mg/L, ammonia nitrogen: 134mg/L, AVM: 81. mu.g/L.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. An abamectin wastewater treatment method is characterized by comprising the following steps:
(a) adding a medicament into the abamectin wastewater for coagulation treatment;
(b) carrying out adsorption treatment on the wastewater after coagulation treatment by adopting oily sludge pyrolysis residues;
(c) and (4) disinfecting the wastewater after adsorption treatment.
2. The abamectin wastewater treatment method according to claim 1, wherein the agent is a coagulant or a flocculant;
the coagulation treatment is to add a coagulant for treatment and add a flocculant for treatment.
3. The abamectin wastewater treatment method according to claim 2, wherein the addition amount of the coagulant is 250 to 350 ppm;
and treating for 15-30 min at 130-160 r/min after the coagulant is added.
4. The abamectin wastewater treatment method according to claim 2, wherein the addition amount of the flocculant is 8-15 ppm;
and treating the flocculant for 50-70 min at a speed of 50-70 r/min after the flocculant is added.
5. The abamectin wastewater treatment method according to claim 1, wherein the adsorption treatment comprises primary adsorption and secondary adsorption; the adding amount of the oily sludge pyrolysis residue in the first-stage adsorption and the second-stage adsorption is 5-8 percent respectively.
6. The abamectin wastewater treatment method according to claim 5, wherein the primary adsorption time and the secondary adsorption time are respectively 20-50 min.
7. The method for treating abamectin wastewater as recited in claim 1, wherein the disinfectant used for disinfection is hypochlorite.
8. The abamectin wastewater treatment method according to claim 7, wherein the addition amount of the disinfectant is 10-15 ppm, and the disinfection time is 25-40 s.
9. The abamectin wastewater treatment method according to claim 1, further comprising:
separating mud and water obtained in the coagulation treatment and the adsorption treatment, and adding the separated water into the abamectin wastewater in the step (a); the separated mud is treated as hazardous waste.
10. The method for treating the abamectin wastewater according to claim 1, wherein the abamectin content in the abamectin wastewater is 195-215 μ g/L;
the abamectin is not detected in the wastewater after the disinfection treatment.
Priority Applications (1)
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