CN106186544B - A kind of processing method for the waste water that pesticide producing generates in the process - Google Patents
A kind of processing method for the waste water that pesticide producing generates in the process Download PDFInfo
- Publication number
- CN106186544B CN106186544B CN201610698569.9A CN201610698569A CN106186544B CN 106186544 B CN106186544 B CN 106186544B CN 201610698569 A CN201610698569 A CN 201610698569A CN 106186544 B CN106186544 B CN 106186544B
- Authority
- CN
- China
- Prior art keywords
- waste water
- passed
- processing method
- added
- processed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- C02F1/001—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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved 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
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2101/345—Phenols
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of processing method of the waste water generated during pesticide producing, the processing method is the following steps are included: waste water is passed into heat exchanger and exchanges heat by (1), subsequently into desorption tower by the pollutant of air- extraction removal benzene；(2) metal salt and calcium hydroxide are added into step (1) processed waste water makes existing in the form of calcium phosphate precipitation in waste water containing phosphor contaminant, is then filtered to remove containing phosphor contaminant；(3) it is passed through pressure-air into step (2) processed waste water, oxidant is added, oxidation reaction occurs in 300~400 DEG C of pesticide residues made in waste water, phenolic substances, the pollutant that activated carbon adsorption is not reacted is then added；(4) waste water passes through hyperfiltration deep level of processing by active carbon-biomembrane.The entire process engineering of the present invention is reasonable, easy to operate, at low cost, and the waste water generated during processed pesticide producing can be economical and practical with direct emission.
Description
Technical field
The present invention relates to environmental technology fields, and in particular to a kind of processing side for the waste water that pesticide producing generates in the process
Method.
Background technique
Pesticide is to guarantee the essential means of production of China's agricultural production sustainable development, but the toxicity of pesticide wastewater
Greatly, biodegradability is poor, directly carries out processing using traditional biological method technique and is difficult to reach discharge standard, causes seriously to environment
Pollution.
The main feature of agricultural chemicals waste water includes: that pollutant concentration is higher, and COD (COD) is up to every liter of tens of thousands of milli
Gram；Toxicity is big, in waste water in addition to containing pesticide and intermediate, is also difficult to containing the noxious materials such as phenol, arsenic, mercury and many biologies
The substance of degradation；Foul smelling, it is irritant to the respiratory tract and mucous membrane of people；Water quality, water are unstable.Therefore, agricultural chemicals waste water pair
The pollution of environment is very serious.It is super not only to directly contribute total phosphorus, ammonia nitrogen for the discharge of the organic wastewater generated in pesticide generating process
Mark, makes water eutrophication, algae mass propagation.In addition, some contain high-toxic pesticide and benzene, phenol, cyanogen, organic chloride etc.
The discharge of wastewater of compound causes great harm the various animal and plant in water body, while causing to underground water and surface water
Pollution, seriously affects the existence of the mankind.
Agricultural chemicals waste water processing technique both domestic and external is broadly divided into the group of biochemical method, physical method, chemical method and the above method
Close application.It wherein, include: flocculent precipitation, catalytic oxidation, Fenton reagent oxidizing process, Ozonation, two in chemical method
Chlorine monoxid oxidizing process and photooxidation method.
But the above method is not high to the treatment effeciency of the waste water generated during pesticide producing, not fully reaches country
Defined discharge standard, so needing to research and develop a kind of can reach discharge standard and efficient method is particularly important.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of processing methods of the waste water generated during pesticide producing.
A kind of processing method of the waste water generated during pesticide producing, the processing method the following steps are included:
(1) waste water is passed into heat exchanger, then the upper end of desorption tower is passed through the waste water passed through from heat exchanger, lower end
It is passed through the vapor of heat, the benzo pollutants of solubility reduction are expelled out of since temperature raises and in waste water, and are brought to tower
Jacking enters condenser, and condensed benzene is further dehydrated and can re-use；Processed waste water is passed into heat exchanger simultaneously, with
Untreated waste water carries out heat exchange, and the untreated waste water for exchanging heat and heating up continues cycling through above method processing, processed
Waste water carries out the processing method of step (2)；
(2) FeCl is slowly added into step (1) processed waste water3Until the precipitating in waste water is not further added by, make to give up
Contain phosphor contaminant and FeCl in water3Reaction generates calcium phosphate precipitation, and calcium hydroxide is added after filtering and is filtered to remove excessive
FeCl3；
(3) it is passed through reactor tank to step (2) processed waste water, then passes to anticyclonic air, increase gas pressure intensity,
Then oxidant is added, is then heated to 300~400 DEG C of pesticide residues made in waste water, phenolic substancess and decomposes, simultaneously
Then the pollutant that activated carbon adsorption is not reacted is added in reducing substances in oxidized waste water；
(4) by waste water by active carbon-biomembrane, then increase pressure in waste water side, when waste water passes through film, retention
The pollutant dissolved in water passes through hyperfiltration deep level of processing sewage.
Further, the working principle of the desorption tower is that liquid flows from top to bottom, and gas is walked from the bottom up, thus two
Kind medium contacts with each other, and reaches heat transfer, absorption, refining effect, high to the benzo pollutants rate of recovery, while passing through heat exchange and reducing
The loss of energy.
Further, the oxidant is the liquor potassic permanganate that mass concentration is 2%, potassium permanganate oxidation ability
By force, wide application, it is significant to the discomposing effect of phenol.
Further, the air that the air being passed through is intake and the isometric air pressure of waste water is 2.5MPa, leads to
Enter anticyclonic air and mainly adjust pressure of the waste water in reactor tank, while providing necessary condition to oxygenolysis.
The beneficial effects of the present invention are embodied in: treatment process of the present invention is continuous, easy to operate, removes the efficiency of pollutant
Height, and remove at low cost, high financial profit.
Specific embodiment
Embodiment 1: a kind of processing method for the waste water that pesticide producing generates in the process, the processing method includes following
Step:
(1) waste water is passed into heat exchanger, then the upper end of desorption tower is passed through the waste water passed through from heat exchanger, lower end
It is passed through the vapor of heat, the benzo pollutants of solubility reduction are expelled out of since temperature raises and in waste water, and are brought to tower
Jacking enters condenser, and condensed benzene is further dehydrated and can re-use；Processed waste water is passed into heat exchanger simultaneously, with
Untreated waste water carries out heat exchange, and the untreated waste water for exchanging heat and heating up continues cycling through above method processing, processed
Waste water carries out the processing method of step (2)；
(2) FeCl is slowly added into step (1) processed waste water3Until the precipitating in waste water is not further added by, make to give up
Contain phosphor contaminant and FeCl in water3Reaction generates calcium phosphate precipitation, and calcium hydroxide is added after filtering and is filtered to remove excessive
FeCl3；
(3) it is passed through reactor tank to step (2) processed waste water, then passes to anticyclonic air, increase gas pressure intensity,
Then oxidant is added, is then heated to 300 DEG C of pesticide residues made in waste water, phenolic substancess and decomposes, simultaneous oxidation
Then the pollutant that activated carbon adsorption is not reacted is added in reducing substances in waste water；
(4) by waste water by active carbon-biomembrane, then increase pressure in waste water side, when waste water passes through film, retention
The pollutant dissolved in water passes through hyperfiltration deep level of processing sewage.
Wherein, the working principle of the desorption tower is that liquid flows from top to bottom, and gas is walked from the bottom up, thus two kinds of Jie
Matter contacts with each other, and reaches heat transfer, absorption, refining effect, high to the benzo pollutants rate of recovery, while reducing energy by heat exchange
The loss of amount.
Wherein, the oxidant is the liquor potassic permanganate that mass concentration is 2%, and potassium permanganate oxidation ability is strong, is answered
It is significant to the discomposing effect of phenol with wide.
Wherein, the air that the air being passed through is intake and the isometric air pressure of waste water is 2.5MPa, is passed through height
The air of air pressure mainly adjusts pressure of the waste water in reactor tank, while providing necessary condition to oxygenolysis.
Embodiment 2: a kind of processing method for the waste water that pesticide producing generates in the process, the processing method includes following
Step:
(1) waste water is passed into heat exchanger, then the upper end of desorption tower is passed through the waste water passed through from heat exchanger, lower end
It is passed through the vapor of heat, the benzo pollutants of solubility reduction are expelled out of since temperature raises and in waste water, and are brought to tower
Jacking enters condenser, and condensed benzene is further dehydrated and can re-use；Processed waste water is passed into heat exchanger simultaneously, with
Untreated waste water carries out heat exchange, and the untreated waste water for exchanging heat and heating up continues cycling through above method processing, processed
Waste water carries out the processing method of step (2)；
(2) FeCl is slowly added into step (1) processed waste water3Until the precipitating in waste water is not further added by, make to give up
Contain phosphor contaminant and FeCl in water3Reaction generates calcium phosphate precipitation, and calcium hydroxide is added after filtering and is filtered to remove excessive
FeCl3；
(3) it is passed through reactor tank to step (2) processed waste water, then passes to anticyclonic air, increase gas pressure intensity,
Then oxidant is added, is then heated to 350 DEG C of pesticide residues made in waste water, phenolic substancess and decomposes, simultaneous oxidation
Then the pollutant that activated carbon adsorption is not reacted is added in reducing substances in waste water；
(4) by waste water by active carbon-biomembrane, then increase pressure in waste water side, when waste water passes through film, retention
The pollutant dissolved in water passes through hyperfiltration deep level of processing sewage.
Wherein, the working principle of the desorption tower is that liquid flows from top to bottom, and gas is walked from the bottom up, thus two kinds of Jie
Matter contacts with each other, and reaches heat transfer, absorption, refining effect, high to the benzo pollutants rate of recovery, while reducing energy by heat exchange
The loss of amount.
Wherein, the oxidant is the liquor potassic permanganate that mass concentration is 2%, and potassium permanganate oxidation ability is strong, is answered
It is significant to the discomposing effect of phenol with wide.
Wherein, the air that the air being passed through is intake and the isometric air pressure of waste water is 2.5MPa, is passed through height
The air of air pressure mainly adjusts pressure of the waste water in reactor tank, while providing necessary condition to oxygenolysis.
Embodiment 3: a kind of processing method for the waste water that pesticide producing generates in the process, the processing method includes following
Step:
(1) waste water is passed into heat exchanger, then the upper end of desorption tower is passed through the waste water passed through from heat exchanger, lower end
It is passed through the vapor of heat, the benzo pollutants of solubility reduction are expelled out of since temperature raises and in waste water, and are brought to tower
Jacking enters condenser, and condensed benzene is further dehydrated and can re-use；Processed waste water is passed into heat exchanger simultaneously, with
Untreated waste water carries out heat exchange, and the untreated waste water for exchanging heat and heating up continues cycling through above method processing, processed
Waste water carries out the processing method of step (2)；
(2) FeCl is slowly added into step (1) processed waste water3Until the precipitating in waste water is not further added by, make to give up
Contain phosphor contaminant and FeCl in water3Reaction generates calcium phosphate precipitation, and calcium hydroxide is added after filtering and is filtered to remove excessive
FeCl3；
(3) it is passed through reactor tank to step (2) processed waste water, then passes to anticyclonic air, increase gas pressure intensity,
Then oxidant is added, is then heated to 400 DEG C of pesticide residues made in waste water, phenolic substancess and decomposes, simultaneous oxidation
Then the pollutant that activated carbon adsorption is not reacted is added in reducing substances in waste water；
(4) by waste water by active carbon-biomembrane, then increase pressure in waste water side, when waste water passes through film, retention
The pollutant dissolved in water passes through hyperfiltration deep level of processing sewage.
Wherein, the working principle of the desorption tower is that liquid flows from top to bottom, and gas is walked from the bottom up, thus two kinds of Jie
Matter contacts with each other, and reaches heat transfer, absorption, refining effect, high to the benzo pollutants rate of recovery, while reducing energy by heat exchange
The loss of amount.
Wherein, the oxidant is the liquor potassic permanganate that mass concentration is 2%, and potassium permanganate oxidation ability is strong, is answered
It is significant to the discomposing effect of phenol with wide.
Wherein, the air that the air being passed through is intake and the isometric air pressure of waste water is 2.5MPa, is passed through height
The air of air pressure mainly adjusts pressure of the waste water in reactor tank, while providing necessary condition to oxygenolysis.
Experimental verification
1. experimental subjects: being process object, wastewater recycle benzene content with the waste water generated in certain insecticide factory's production process
1500~2000mg/L, 1000~1200mg/L of phosphorus content, 2000~3000mg/L of aldehydes matter content.
2. test method: taking 3 parts, every part of 150L of above-mentioned waste water, respectively 1~3 method processing through the embodiment of the present invention.
3. test result: the variation of benzene content, phosphorus content, aldehydes matter content is as follows: in processed waste water
| Group | Benzene content mg/L | Phosphorus content mg/L | Phenolic substances mg/L | Have without exception |
| Embodiment 1 | 20~40 | 5~8 | 25~46 | Nothing |
| Embodiment 2 | 15~35 | 10~13 | 32~45 | Nothing |
| Embodiment 3 | 20~38 | 12~14 | 28~41 | Nothing |
4. conclusion: can be seen that removal effect of the sewage to pollutant of processing method processing of the invention by upper table
Obviously, discharge standard can be reached.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of processing method of the waste water generated during pesticide producing, which is characterized in that the processing method include with
Lower step:
(1) waste water is passed into heat exchanger, then the upper end of desorption tower is passed through the waste water passed through from heat exchanger, and lower end is passed through
The vapor of heat, the benzo pollutants that solubility reduces since temperature raises and in waste water are expelled out of, and be brought to tower top into
Enter condenser, condensed benzene is further dehydrated re-using；Processed waste water is passed into heat exchanger simultaneously, and untreated
Waste water carry out heat exchange, heat exchange and heat up untreated waste water continue cycling through the above method processing, processed waste water into
The processing method of row step (2)；
(2) FeCl is slowly added into step (1) processed waste water3Until the precipitating in waste water is not further added by, make in waste water
Containing phosphor contaminant and FeCl3Reaction generates calcium phosphate precipitation, and calcium hydroxide is added after filtering and is filtered to remove excessive FeCl3；
(3) it is passed through reactor tank to step (2) processed waste water, then passes to anticyclonic air, increase gas pressure intensity, then
Oxidant is added, is then heated to 300~400 DEG C of pesticide residues made in waste water, phenolic substancess and decomposes, simultaneous oxidation
Then the pollutant that activated carbon adsorption is not reacted is added in reducing substances in waste water；
(4) by waste water by active carbon-biomembrane, then increase pressure in waste water side, when waste water passes through film, in trap water
The pollutant of dissolution passes through hyperfiltration deep level of processing sewage.
2. the processing method of the waste water generated during a kind of pesticide producing as described in claim 1, which is characterized in that described
The working principle of desorption tower be that liquid flows from top to bottom, gas is walked from the bottom up, so that two media contacts with each other, reaches biography
Heat, absorption, refining effect.
3. the processing method of the waste water generated during a kind of pesticide producing as described in claim 1, which is characterized in that described
Oxidant be liquor potassic permanganate that mass concentration is 2%.
4. the processing method of the waste water generated during a kind of pesticide producing as described in claim 1, which is characterized in that described
The air that the air being passed through is intake and the isometric air pressure of waste water is 2.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698569.9A CN106186544B (en) | 2016-08-19 | 2016-08-19 | A kind of processing method for the waste water that pesticide producing generates in the process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698569.9A CN106186544B (en) | 2016-08-19 | 2016-08-19 | A kind of processing method for the waste water that pesticide producing generates in the process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106186544A CN106186544A (en) | 2016-12-07 |
| CN106186544B true CN106186544B (en) | 2019-01-04 |
Family
ID=57522410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610698569.9A Active CN106186544B (en) | 2016-08-19 | 2016-08-19 | A kind of processing method for the waste water that pesticide producing generates in the process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106186544B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110054348A (en) * | 2019-04-11 | 2019-07-26 | 江苏禾本生化有限公司 | A kind for the treatment of process of fluorine bacterium azoles pesticide wastewater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132636A (en) * | 1977-08-24 | 1979-01-02 | Niigata Engineering Co., Ltd. | Method for treating gas liquor |
| CN101544913A (en) * | 2009-05-04 | 2009-09-30 | 济南冶金化工设备有限公司 | Process and equipment for negative pressure benzene removal |
| CN103663831A (en) * | 2013-11-18 | 2014-03-26 | 青岛文创科技有限公司 | Method for treating wastewater containing anilines |
| CN104710052A (en) * | 2015-03-03 | 2015-06-17 | 中北大学 | Method and device for treating high-concentration nitrobenzene-containing waste water by using air-stripping-microelectrolysis-fenton oxidation method |
| CN105152408A (en) * | 2015-09-25 | 2015-12-16 | 浙江奇彩环境科技有限公司 | Treatment method for carbendazim production wastewater |
| CN105236611A (en) * | 2015-09-25 | 2016-01-13 | 浙江奇彩环境科技有限公司 | Processing method of benzene waste water |
-
2016
- 2016-08-19 CN CN201610698569.9A patent/CN106186544B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132636A (en) * | 1977-08-24 | 1979-01-02 | Niigata Engineering Co., Ltd. | Method for treating gas liquor |
| CN101544913A (en) * | 2009-05-04 | 2009-09-30 | 济南冶金化工设备有限公司 | Process and equipment for negative pressure benzene removal |
| CN103663831A (en) * | 2013-11-18 | 2014-03-26 | 青岛文创科技有限公司 | Method for treating wastewater containing anilines |
| CN104710052A (en) * | 2015-03-03 | 2015-06-17 | 中北大学 | Method and device for treating high-concentration nitrobenzene-containing waste water by using air-stripping-microelectrolysis-fenton oxidation method |
| CN105152408A (en) * | 2015-09-25 | 2015-12-16 | 浙江奇彩环境科技有限公司 | Treatment method for carbendazim production wastewater |
| CN105236611A (en) * | 2015-09-25 | 2016-01-13 | 浙江奇彩环境科技有限公司 | Processing method of benzene waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106186544A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101601998A (en) | A kind of Preparation of catalysts method that is used for treating high-concentration organic wastewater through catalytic oxidation | |
| CN105693030B (en) | A kind of bamboo wood carbonized waste water treatment system and method | |
| CN105753248A (en) | Evaporation pretreatment method of reverse osmosis concentrated saline solution | |
| CN100569673C (en) | A kind of method of catalysis wet-type oxidation degradation dyestuff contaminant | |
| CN104211244A (en) | Method for gas membrane-process treatment of ammonia-containing feed liquid or wastewater with renewable absorbent and by-producted strong aqua ammonia | |
| CN107162298A (en) | A kind of near-zero release processing method of high salt organic waste water | |
| CN107540175A (en) | A kind of method for removing hardly degraded organic substance in Industrial reverse osmosis concentrated water | |
| Liu et al. | Selective oxidation of ammonia to dinitrogen gas by facile Co2+/PMS/chloridion process through reactive chlorine radicals | |
| CN104628065A (en) | Chemical pharmaceutical wastewater treatment system and method | |
| CN108178451B (en) | Treatment system for removing ammonia nitrogen in domestic wastewater | |
| CN106186544B (en) | A kind of processing method for the waste water that pesticide producing generates in the process | |
| CN104190226A (en) | Complexing absorption and aerobic denitrification combined smoke denitration process | |
| CN103420439B (en) | Realize the treatment process of Leachate site zero release of pollutant and resource utilization | |
| TWI558667B (en) | Apparatus and method for the production of solution by concentrating volatile substances from steam stripping of wastewater | |
| Jang et al. | Parametric studies during the removal of ammonia by membrane contactor with various stripping solutions | |
| CN111704291A (en) | Efficient treatment system and treatment process for benzofuranone wastewater | |
| CN102476860A (en) | Mercury removal agent for treating waste water containing mercury | |
| CN101070218A (en) | Neutralization-free furfural wastewater biochemical treatment process | |
| CN215517085U (en) | Processing system of mother liquor behind coal chemical industry waste water salt separation | |
| CN108383195B (en) | Method for adsorbing and purifying ammonia nitrogen wastewater by using cross-linked polyvinylpyrrolidone supporter | |
| CN108341548B (en) | Treatment method for removing ammonia nitrogen in domestic wastewater | |
| CN201762222U (en) | Purifying device for organic wastewater with high-concentration inorganic salt | |
| CN204251467U (en) | A kind of blue charcoal process without drainage of waste water package locking device | |
| CN212362046U (en) | Phosphorus and sulfur containing high concentration organic wastewater guanite method resourceful treatment device | |
| CN102910766A (en) | Pendimethalin pesticide wastewater treatment process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |