CN104529080B - The phosphorous agricultural chemicals waste water technique of a kind of process - Google Patents
The phosphorous agricultural chemicals waste water technique of a kind of process Download PDFInfo
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- CN104529080B CN104529080B CN201410846368.XA CN201410846368A CN104529080B CN 104529080 B CN104529080 B CN 104529080B CN 201410846368 A CN201410846368 A CN 201410846368A CN 104529080 B CN104529080 B CN 104529080B
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- waste water
- agricultural chemicals
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- phosphorous
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- 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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- 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
- C02F3/1236—Particular type of activated sludge installations
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
<b>disclosure one processes phosphorous agricultural chemicals waste water technique, the processing step and arrange emerging compact support type packing in the biochemical process stage such as including multiple-effect evaporation, neutralization, flocculation sediment, biochemistry, ozone high grade oxidation, improves the treatment effect of biochemical stage.The present invention selects glyphosate mother solution waste water, mother liquor from amination, condensation washing secondary wastewater mixing, reaches the treatment of wastes with processes of wastes against one another, reduces the load of each organic pollution in waste water.Improve used water difficult to degradate</b><b>b/C</b><b>ratio, this process safety, advanced person, stable, operating cost is low, be easily maintained.</b>
Description
Technical field
The present invention relates to field of environment protection, particularly the phosphorous agricultural chemicals waste water technique of a kind of process.
Background technology
Fluroxypyr belongs to inner sucting conduction type herbicide after seedling.This product is applicable to various crop, broad weed-killing spectrum, and in drug resistance plant such as Semen Tritici aestivi body, fluroxypyr is combined into conjugates and loses toxicity, thus having selectivity, is current one of classic dry land herbicide in the world.The waste water that fluroxypyr produces in process of production, containing materials such as more glyphosate, PMIDA, formaldehyde, formic acid, potassium fluoride, sulfolane, this wastewater treatment difficulty is relatively big, does not have ripe effective industrialization administering method both at home and abroad so far.Containing more hazardous contaminant in this waste water, in system, the numerical value of COD, NH3-N is higher, and acidity is high and toxicity is big, and Ecotoxicology effect is big, and biological degradability is poor, belongs to high concentration, difficult degradation class agricultural chemicals waste water.
Summary of the invention
It is an object of the invention to provide the phosphorous agricultural chemicals waste water technique of a kind of process.
For reaching above-mentioned purpose, the technical solution used in the present invention is: the phosphorous agricultural chemicals waste water technique of a kind of process, processes step as follows:
(1) agricultural chemicals waste water is passed through multiple effect distillator；
(2) in the distillate waste water of step (1), add mother liquor from amination and condensation washing secondary wastewater；
(3) agricultural chemicals waste water after processing to step (2) adds calcium oxide, the pH value of agricultural chemicals waste water is regulated to 12-13, add poly-aluminum and the pH value of agricultural chemicals waste water is regulated to 6.5-7.5, after precipitation, take the supernatant；
(4) supernatant step (3) obtained introduces A/O/S biochemical system；
(5) biochemical system water outlet step (4) obtained introduces advanced oxidation equipment, improves bio-chemical effluent B/C ratio；
(6) oxidation water step (5) finally given introduces biological contact oxidation pond, obtains biological water outlet；
(7) by biology water outlet through three heavy ponds, the supernatant is taken.
Preferably, biochemical system described in step (3) is arranged compact support type packing.
It is further preferred that the filling rate of compact support type packing is at 50-70% described in step (3).
Preferably, advanced oxidation equipment described in step (4) is ozonator.
Owing to technique scheme is used, the present invention compared with prior art has the advantage that
Owing to the present invention selects glyphosate mother solution distillate waste water, mother liquor from amination and condensation washing secondary wastewater mixed processing, the treatment of wastes with processes of wastes against one another, the OH-of mother liquor from amination waste water can neutralize the H+ in other waste water of part, improves the pH of waste water, reduces the consumption of calcium oxide.
The present invention can effectively reduce the content of glyphosate mother solution formaldehyde in waste water and reduce the numerical value of COD, NH3-N, it is ensured that the eco-toxicity safety of water outlet, and non-secondary pollution；System water outlet toxicity is substantially reduced, and effluent quality reaches the discharge standard of regulation；This waste water treatment process is safely, advanced, cost for wastewater treatment is low.
Detailed description of the invention
The present invention is further elucidated below.
COD is writing a Chinese character in simplified form of ChemicalOxygenDemand, refer to COD, when finger processes water sample with strong oxidizer, the oxidant content consumed, it indicates that the index that in water, reducing substances is how many, reducing substances in water refers mainly to Organic substance, and therefore, COD weighs the index that Organic substance in water matter content is how many.NH3-N is ammonia-nitrogen content index in waste water.Total P refers to Phosphorus From Wastewater content's index.
The waste water that fluroxypyr produces in process of production, containing materials such as more glyphosate, PMIDA, formaldehyde, formic acid, potassium fluoride, sulfolane, is specifically described this agricultural chemicals waste water processing method below by an embodiment:
(1) by agricultural chemicals waste water by multiple effect distillator, the COD numerical value of this general agricultural chemicals waste water is higher, up to 90000mg/L, this kind of waste water after multi-effect evaporator processes in distillate waste water COD can be down to 40000 50000mg/L.
(2) in the distillate waste water of step (1), add mother liquor from amination and condensation washing secondary wastewater, the OH of mother liquor from amination waste water-The H in other waste water of part can be neutralized+Can be used for neutralizing pH value, to reduce the consumption regulating PH medicine, the treatment of wastes with processes of wastes against one another economizes on resources.
(3) agricultural chemicals waste water after processing to step (2) adds calcium oxide, the pH value of agricultural chemicals waste water is regulated to 12-13, add poly-aluminum and the pH value of agricultural chemicals waste water is regulated to 6.5-7.5, after precipitation, take the supernatant；Oxymethylene polymerization in calcium oxide energy catalysis waste water becomes degradable avirulent formose, reduce the content of formaldehyde in waste water, reduce the formaldehyde impact on biochemical treatment, poly-aluminum is a kind of highly effective inorganic high polymer coagulant, suspended material, colloidal substance in waste water can be formed alumen ustum and form block, grain density weight, it is prone to sedimentation, the sedimentation time can be shortened, containing part aluminum phosphate precipitation in the precipitation that the present embodiment produces.
(4) supernatant step (3) obtained introduces A/O/S biochemical system, A/O/S refers respectively to anoxic pond, Aerobic Pond, sedimentation tank, this step adopt filling rate at the compact support type packing of 50-70%, the installation of compact support type packing can improve biochemical stage effluent quality, improves the impact resistance of system.Front end anoxic pond can improve the biodegradability of agricultural chemicals waste water, reduces the toxicity of agricultural chemicals waste water, and Aerobic Pond can remove wastewater organic pollutant and ammonia nitrogen.
(5) biochemical system water outlet step (4) obtained introduces advanced oxidation equipment, the middle-and-high-ranking oxidation furnaces of the present embodiment is ozonator, ozonator can convert oxygen into ozone, the organic pollutant degradation of difficult degradation in waste water can be become the material of easy microbial degradation by ozone, larger molecular organics is changed into small organic molecule, improve the biodegradability of agricultural chemicals waste water, improve bio-chemical effluent B/C ratio, B/C is primarily referred to as biodegradability, B/C is more high more applicable Wastewater Treated by Activated Sludge Process sewage, the biochemical system water outlet that step (4) obtains still contains more hard-degraded substance, waste water B/C is relatively low, the B/C ratio of high-level oxidation technology degradable part hard-degraded substance and raising bio-chemical effluent, process for subsequent biochemical and prepare.
(6) oxidation water step (5) finally given introduces biological contact oxidation pond, obtains biological water outlet.Biological contact oxidation pond is Aerobic Pond, arranges filler in Aeration tank, and it is as biomembranous carrier.Waste water flows through filler with certain flow rate after oxygenation, and biofilm contact, biomembrane and the activated sludge combined effect of suspension, reaches to purify the effect of waste water.In biological contact oxidation pond, the filling rate of filler is at 50-70%.
(7) by biology water outlet through three heavy ponds, the supernatant is taken.
Result after the method for the present invention processes is as shown in the table:
Table 1 Inlet and outlet water data mg/L
| Type | Glyphosate mother solution | Distillate | Mixed sample | After calcium oxide | After poly-aluminum | After biochemistry | After ozone | Catalytic oxidation |
| COD | 89760 | 42160 | 46240 | 35360 | 24480 | 159.68 | 93.15 | 40 |
| NH3-N | 16891 | 8108 | 8213 | 5995 | 4136 | 2 | 1 | 0.5 |
| Total P | 7817.3 | 3900 | 3900 | 627.757 | 356.2 | 0.5 | 0.5 | 0.4 |
As can be seen from the above table, the present invention can effectively reduce the content of glyphosate mother solution formaldehyde in waste water and reduce the numerical value of COD, NH3-N, total P, it is ensured that the eco-toxicity safety of water outlet, and non-secondary pollution；System water outlet toxicity is substantially reduced, and effluent quality reaches the discharge standard of regulation；This waste water treatment process is safely, advanced, cost for wastewater treatment is low.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. one kind processes phosphorous agricultural chemicals waste water technique, it is characterised in that process step as follows:
(1) agricultural chemicals waste water is passed through multiple effect distillator；
(2) in the distillate waste water of step (1), add mother liquor from amination and condensation washing secondary wastewater；
(3) agricultural chemicals waste water after processing to step (2) adds calcium oxide, the pH value of agricultural chemicals waste water is regulated to 12-13, add poly-aluminum and the pH value of agricultural chemicals waste water is regulated to 6.5-7.5, after precipitation, take the supernatant；
(4) supernatant step (3) obtained introduces A/O/S biochemical system, and A/O/S refers respectively to anoxic pond, Aerobic Pond, sedimentation tank；
(5) biochemical system water outlet step (4) obtained introduces advanced oxidation equipment, improves bio-chemical effluent B/C ratio；
(6) oxidation water step (5) finally given introduces biological contact oxidation pond, obtains biological water outlet；
(7) by biology water outlet through three heavy ponds, the supernatant is taken.
2. the phosphorous agricultural chemicals waste water technique of a kind of process according to claim 1, it is characterised in that: A/O/S biochemical system described in step (4) is arranged compact support type packing.
3. the phosphorous agricultural chemicals waste water technique of a kind of process according to claim 2, it is characterised in that: described in step (4), the filling rate of compact support type packing is at 50-70%.
4. the phosphorous agricultural chemicals waste water technique of a kind of process according to claim 1, it is characterised in that: advanced oxidation equipment described in step (5) is ozonator.
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| CN104529080B true CN104529080B (en) | 2016-07-06 |
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| CN105198175B (en) * | 2015-10-29 | 2017-07-14 | 广东省工程技术研究所 | A kind of dimethoate pesticide produces the processing method of waste water |
| CN106915864A (en) * | 2015-12-26 | 2017-07-04 | 江苏博凯环境科技有限公司 | A kind of dyeing waste water Treated sewage reusing ABP Processes and apparatus |
| CN109592773A (en) * | 2018-12-12 | 2019-04-09 | 天津大学 | A method of degradation water body glyphosate |
| CN109912126A (en) * | 2019-03-28 | 2019-06-21 | 东北师范大学 | A kind of pesticides waste water treatment process |
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| CN100503480C (en) * | 2006-12-20 | 2009-06-24 | 中国科学院上海应用物理研究所 | Method for treating waster water produced by production of acephate with ammonia neutralization process |
| CN102616914B (en) * | 2011-01-31 | 2015-04-01 | 浙江新安化工集团股份有限公司 | Treatment method of phosphorus-containing waste from pesticide production and product obtained thereby |
| CN103342398B (en) * | 2013-07-17 | 2015-03-25 | 山东潍坊润丰化工股份有限公司 | Method for recovering high-purity organic salt from phosphorous-containing industrial wastewater |
| CN104058496B (en) * | 2014-05-30 | 2016-02-10 | 安徽国星生物化学有限公司 | A kind for the treatment of process of phosphorus-containing wastewater |
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