CN108640294A - A kind of processing method of chemical industry or agricultural chemicals waste water biochemistry end - Google Patents
A kind of processing method of chemical industry or agricultural chemicals waste water biochemistry end Download PDFInfo
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- CN108640294A CN108640294A CN201810511120.6A CN201810511120A CN108640294A CN 108640294 A CN108640294 A CN 108640294A CN 201810511120 A CN201810511120 A CN 201810511120A CN 108640294 A CN108640294 A CN 108640294A
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- 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
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
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Abstract
The present invention provides a kind of chemical industry or the processing methods of agricultural chemicals waste water biochemistry end, including：The characteristics of analyzing chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter and water quality residual contaminants；Optimum strain is prepared according to chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter pollutant existence form；The activation that bacterial strain is carried out using target water quality is tamed, and determines the best material and form of bio-carrier；The bacterial strain after activation domestication is added according to water water quality and quantity dynamic.A kind of newest biological wastewater treatment technology of the present invention for the further biochemical processing process of sewage after chemical industry and pesticide industry biochemical treatment, it is that the water quality after existing wastewater treatment is further analyzed, and screen best bacterial strain, it is further processed in conjunction with biologic packing material, 50% or more can be reduced on the basis of having bio-chemical effluent.The invention for after biochemical treatment chemical industry and agricultural chemicals waste water have a remarkable effect, while reducing operating cost for enterprise, and there is preferable environmental benefit.
Description
Technical field
The present invention relates to technical field of sewage, especially relate to the processing side of a kind of chemical industry or agricultural chemicals waste water biochemistry end
Method.
Background technology
With the continuous improvement of environmental requirement, the sewage disposal of especially pesticide chemical industry brings certain challenge,
Traditional process includes A/0, SBR, A2/O2, and IC, UASB, CASS, A2/0, contact oxidation technology etc. combine biochemical treatment
The processing ammonia nitrogen for being also difficult to reach its discharge standard, especially trade effluent after technique is up to standard just more difficult, so just
So that enterprise has to use the materializing strategy technique of the high operating cost of high investment in biochemical rear end, to greatly increase greatly
The burden of enterprise, while also having aggravated environmental pressure.
Invention content
The present invention provides a kind of chemical industry or the processing methods of agricultural chemicals waste water biochemistry end, for chemical industry pesticide industry waste water
Water quality after biochemical treatment is further processed, biochemical by newly-built level-one, in conjunction with filler and adds a certain amount of advantage
Microbial inoculum, so that its current bio-chemical effluent qualified discharge, the technology for solving the removal ability for how promoting pollutant are asked
Topic.
In order to achieve the above object, the present invention provides a kind of chemical industry or the processing method of agricultural chemicals waste water biochemistry end, packets
It includes：
Step 1: the characteristics of analysis chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter and water quality residual contaminants；
Step 2: preparing optimum strain according to chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter pollutant existence form；
Step 3: the activation for being carried out bacterial strain using target water quality is tamed, and determine the best material and form of bio-carrier；
Step 4: adding the bacterial strain after activation domestication according to water water quality and quantity dynamic.
In the step 1, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter include：COD, BOD/COD, salinity, PH and
Major pollutants form.
In the step 1, the characteristics of water quality residual contaminants, includes：
COD after chemical industry or agricultural chemicals waste water biochemistry end-o f-pipe -control is less than 800mg/L, and BOD/COD is 0.25 hereinafter, salinity
Less than 8000mg/L, for ph between 7-8.5, major pollutants are more than 5 carbon molecules structure organic matters.
In the step 2, optimum strain includes：Halophilic archaea, sulfate reduction Gu bacterium, photosynthetic bacteria, yellowish-brown red spiral shell
Bacterium, Rhodopseudomonas spheroides agent Nocard's bacillus, Bacterium prodigiosum (Clostridium putrificum), nitrate bacteria and ite
Bacterium, uninteresting bacillus and corynebacteria.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than in 500-800mg/L, B0D/COD
0.25, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 1:1.2:1.5:1:2:1:1.6:1.2:2:3.5:5, the optimum strain ratio and processing after above-mentioned mixing are useless
The ratio of water is 1.8:6000.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than in 500-300mg/L, B0D/COD
0.25, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 1.5:1.0:2.5:1.5:5:2:1.5:3:2:3.0:4, optimum strain ratio after above-mentioned mixing and processing
The ratio of waste water is 1.0:5000.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than 300mg/L, and B0D/COD is less than 0.25
, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 2.0:1.0:2.0:1.2:2:2:2.5:1:5:5:1, the optimum strain ratio and processing after above-mentioned mixing are useless
The ratio of water is 1.0:4000.
In the step 3, activation acclimation is optimum strain in corresponding ratio combined sewage 65%, clear water 35%, control
Temperature processed is between 25-36 degree, and between 7-8.5, DO is more than 2.0mg/L aeration reactions and completes within 18 hours activation domestication PH.
In the step 3, determine that the best material of bio-carrier and form are：
Optimum strain enrichment bio-carrier be：Modified polyurethane, plant fiber, activated charcoal and poly terephthalic acid second
Diester (PET) is according to 6:2:1:1 ratio mixing, and pass through micropore biological carrier filler made of oxygen, the dual explosion of hydrogen.
Compared with prior art, the processing method of a kind of chemical industry or agricultural chemicals waste water biochemistry provided by the invention end, for
The technique that water quality after the processing of chemical industry pesticide industry wastewater biochemical is further processed, the technology are given birth to by newly-built level-one
Change, in conjunction with filler and a certain amount of advantage microbial inoculum is added, so that its current bio-chemical effluent qualified discharge.
The present invention be directed to one kind of the further biochemical processing process of sewage after chemical industry and pesticide industry biochemical treatment
Newest biological wastewater treatment technology is the bacterium for being further analyzed to the water quality after existing wastewater treatment, and screening best
Strain, is further processed in conjunction with biologic packing material, and 50% or more can be reduced on the basis of having bio-chemical effluent.The invention pair
Chemical industry and agricultural chemicals waste water after biochemical treatment have remarkable effect, while reducing operating cost for enterprise, and with preferable
Environmental benefit.
Description of the drawings
Fig. 1 is the flow according to a kind of embodiment one of the processing method of the chemical industry or agricultural chemicals waste water biochemistry end of the present invention
Schematic diagram.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
Embodiment
As shown in Figure 1, the embodiment of the present invention one provides the processing method of a kind of chemical industry or agricultural chemicals waste water biochemistry end, packet
It includes：
Step 1: the characteristics of analysis chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter and water quality residual contaminants；
Step 2: preparing optimum strain according to chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter pollutant existence form；
Step 3: the activation for being carried out bacterial strain using target water quality is tamed, and determine the best material and form of bio-carrier；
Step 4: adding the bacterial strain after activation domestication according to water water quality and quantity dynamic.
In the step 1, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter include：COD, BOD/COD, salinity, PH and
Major pollutants form.
In the step 1, the characteristics of water quality residual contaminants, includes：
Under normal circumstances, the COD after chemical industry or agricultural chemicals waste water biochemistry end-o f-pipe -control is less than 800mg/L, and BOD/COD exists
0.25 hereinafter, salinity is less than 8000mg/L, and for ph between 7-8.5, it is organic that most of major pollutants are more than 5 carbon molecules structures
Object.
In the step 2, optimum strain includes：Halophilic archaea, sulfate reduction Gu bacterium, photosynthetic bacteria, yellowish-brown red spiral shell
Bacterium, Rhodopseudomonas spheroides agent Nocard's bacillus, Bacterium prodigiosum (Clostridium putrificum), nitrate bacteria and ite
Bacterium, uninteresting bacillus and corynebacteria.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than in 500-800mg/L, B0D/COD
0.25, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 1:1.2:1.5:1:2:1:1.6:1.2:2:3.5:5, the optimum strain ratio and processing after above-mentioned mixing are useless
The ratio of water is 1.8:6000.I.e.：Every 6000 tons of water needs according to the Mixed Microbes weight that above-mentioned bacterial strains ratio mixes to be 1.8kg,
Above-mentioned bacterial strains need sewage 65%, and clear water 35%, control temperature is between 25-36 degree, and between 7-8.5, DO is more than PH
2.0mg/L aeration reactions complete activation domestication for 18 hours.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than in 500-300mg/L, B0D/COD
0.25, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 1.5:1.0:2.5:1.5:5:2:1.5:3:2:3.0:4, optimum strain ratio after above-mentioned mixing and processing
The ratio of waste water is 1.0:5000, i.e.,：Every 5000 tons of water needs the Mixed Microbes weight mixed according to above-mentioned bacterial strains ratio to be
1.0kg, above-mentioned bacterial strains need sewage 65%, and clear water 35%, control temperature is between 25-36 degree, and for PH between 7-8.5, DO is big
Activation domestication is completed within 18 hours in 2.0mg/L aeration reactions.
Further, chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than 300mg/L, and B0D/COD is less than 0.25
, the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：
Bacterium prodigiosum (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：Corynebacteria
Mixed proportion is 2.0:1.0:2.0:1.2:2:2:2.5:1:5:5:1, the optimum strain ratio and processing after above-mentioned mixing are useless
The ratio of water is 1.0:4000, i.e.,：Every 4000 tons of water needs according to the Mixed Microbes weight that above-mentioned bacterial strains ratio mixes to be 1.0kg,
Above-mentioned bacterial strains need sewage 65%, and clear water 35%, control temperature is between 25-36 degree, and between 7-8.5, DO is more than PH
2.0mg/L aeration reactions complete activation domestication for 18 hours.
COD removal rates may be implemented 50% or more, using water quality by above-mentioned technique：At chemical industry or pesticide industry biochemistry
Tail end wastewater processing after reason.
In the step 3, activation acclimation is optimum strain in corresponding ratio combined sewage 65%, clear water 35%, control
Temperature processed is between 25-36 degree, and between 7-8.5, DO is more than 2.0mg/L aeration reactions and completes within 18 hours activation domestication PH.
In the step 3, determine that the best material of bio-carrier and form are：
Optimum strain enrichment bio-carrier be：Modified polyurethane, plant fiber, activated charcoal and poly terephthalic acid second
Diester (PET) is according to 6:2:1:1 ratio mixing, and pass through micropore biological carrier filler made of oxygen, the dual explosion of hydrogen.
The present invention is compared with the prior art as shown in table 1：
Table 1
The analysis for being primarily present form of residual contaminants is discharged to current biochemical system, using bio-chemical effluent to microorganism
Bacterial strain carries out further activation domestication, the biomass for determining best biologic packing material to add and provides good carrier.
1, for the technology effectively instead of the materializing strategy technique of biochemical rear end, the water outlet of biochemical system can by the technique
Organic pollution COD is removed 50% or more.
2, by analyzing the residual contaminants for having bio-chemical effluent, and the activator of bacterial strain is carried out using the waste water
Domestication, to obtain significantly more efficient bacterial strain.
3, effective strain concentration reaches 109/cm2 after the enrichment of bio-carrier, above, and activity is high.
The embodiment of the present invention one is by the way that current bio-chemical effluent water analysis, including its COD, salinity, PH, BOD are main dirty
It contaminates object analysis and determines its optimum strain composition later, activated to the activation of specific strain and further according to its water quality, pass through one
Kind special high-density packing carries out the enrichment of bacterial strain, to promote the removal ability of pollutant, Decomposition Wastewater to greatest extent
Residual organic contaminants, to realize the removal of pollutant.
Compared with prior art, the processing method of a kind of chemical industry or agricultural chemicals waste water biochemistry provided by the invention end can use
For Traditional materialized treatment technology, the work being further processed for the water quality after the processing of chemical industry pesticide industry wastewater biochemical
Skill, the technology are biochemical by newly-built level-one, in conjunction with filler and a certain amount of advantage microbial inoculum are added, so that its current life
Dissolve water qualified discharge.
The present invention be directed to one kind of the further biochemical processing process of sewage after chemical industry and pesticide industry biochemical treatment
Newest biological wastewater treatment technology is the bacterium for being further analyzed to the water quality after existing wastewater treatment, and screening best
Strain, is further processed in conjunction with biologic packing material, and 50% or more can be reduced on the basis of having bio-chemical effluent.The invention pair
Chemical industry and agricultural chemicals waste water after biochemical treatment have remarkable effect, while reducing operating cost for enterprise, and with preferable
Environmental benefit.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. the processing method of a kind of chemical industry or agricultural chemicals waste water biochemistry end, which is characterized in that this method includes：
Step 1: the characteristics of analysis chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter and water quality residual contaminants；
Step 2: preparing optimum strain according to chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter pollutant existence form；
Step 3: the activation for being carried out bacterial strain using target water quality is tamed, and determine the best material and form of bio-carrier；
Step 4: adding the bacterial strain after activation domestication according to water water quality and quantity dynamic.
2. the method as described in claim 1, which is characterized in that in the step 1, chemical industry or agricultural chemicals waste water bio-chemical effluent water
Matter parameter includes：COD, BOD/COD, salinity, PH and major pollutants composition.
3. method as claimed in claim 1 or 2, which is characterized in that in the step 1, the characteristics of water quality residual contaminants wraps
It includes：
COD after chemical industry or agricultural chemicals waste water biochemistry end-o f-pipe -control is less than 800mg/L, and BOD/COD is 0.25 hereinafter, salinity is less than
Between 7-8.5, major pollutants are more than 5 carbon molecules structure organic matters by 8000mg/L, ph.
4. the method as described in claim 1, which is characterized in that in the step 2, optimum strain includes：Halophilic archaea, sulphur
The ancient bacterium of hydrochlorate reduction, photosynthetic bacteria, yellowish-brown red spirillum, Rhodopseudomonas spheroides agent Nocard's bacillus, Bacterium prodigiosum (Clostridium
Putrificum), nitrate bacteria and ite bacterium, uninteresting bacillus and corynebacteria.
5. method as claimed in claim 4, which is characterized in that chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD exist
500-800mg/L, B0D/COD are less than 0.25, and the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：Clever bar
Bacterium (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：The mixing of corynebacteria
Ratio is 1:1.2:1.5:1:2:1:1.6:1.2:2:3.5:5, optimum strain ratio after above-mentioned mixing and processing waste water
Ratio is 1.8:6000.
6. method as claimed in claim 4, which is characterized in that chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD exist
500-300mg/L, B0D/COD are less than 0.25, and the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：Clever bar
Bacterium (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：The mixing of corynebacteria
Ratio is 1.5:1.0:2.5:1.5:5:2:1.5:3:2:3.0:4, optimum strain ratio after above-mentioned mixing and processing waste water
Ratio be 1.0:5000.
7. method as claimed in claim 4, which is characterized in that chemical industry or agricultural chemicals waste water bio-chemical effluent water quality parameter COD are less than
300mg/L, B0D/COD are less than 0.25, and the best strain ratio used is：
Halophilic archaea：Sulfate reduction Gu bacterium：Photosynthetic bacteria：Yellowish-brown red spirillum：Rhodopseudomonas spheroides：Nocard's bacillus：Clever bar
Bacterium (Clostridium putrificum)：Nitrate bacteria：Ite bacterium：Uninteresting bacillus：The mixing of corynebacteria
Ratio is 2.0:1.0:2.0:1.2:2:2:2.5:1:5:5:1, optimum strain ratio after above-mentioned mixing and processing waste water
Ratio is 1.0:4000.
8. method as described in claim 1 or 4, which is characterized in that in the step 3, activation acclimation is optimum strain
In corresponding ratio combined sewage 65%, clear water 35%, control temperature is between 25-36 degree, and between 7-8.5, DO is more than PH
2.0mg/L aeration reactions complete activation domestication for 18 hours.
9. the method as described in claim 1,4 or 8, which is characterized in that in the step 3, determine the best material of bio-carrier
Matter and form are：
Optimum strain enrichment bio-carrier be：Modified polyurethane, plant fiber, activated charcoal and polyethylene terephthalate
(PET) according to 6:2:1:1 ratio mixing, and pass through micropore biological carrier filler made of oxygen, the dual explosion of hydrogen.
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| CN201810511120.6A CN108640294B (en) | 2018-05-24 | 2018-05-24 | Method for treating biochemical tail end of chemical or pesticide wastewater |
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| CN201810511120.6A CN108640294B (en) | 2018-05-24 | 2018-05-24 | Method for treating biochemical tail end of chemical or pesticide wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661929A (en) * | 2020-06-05 | 2020-09-15 | 北京赛富威环境工程技术有限公司 | Organic waste treatment method |
| CN114212888A (en) * | 2022-01-18 | 2022-03-22 | 北京赛富威环境工程技术有限公司 | Treatment method of high-concentration industrial wastewater |
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| CN101941758A (en) * | 2010-08-19 | 2011-01-12 | 国核电力规划设计研究院 | Method for treating nitrogen-containing wastewater from power plants by nitrifying bacteria immobilized on polyurethane |
| CN106115939A (en) * | 2016-07-28 | 2016-11-16 | 北京赛富威环境工程技术有限公司 | A kind of online bio-synergistic ammonia nitrogen removal method of sewage |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914440A (en) * | 2010-07-06 | 2010-12-15 | 浙江省环境保护科学设计研究院 | Method for massively culturing decolorizing bacteria of dyeing and printing wastewater |
| CN101941758A (en) * | 2010-08-19 | 2011-01-12 | 国核电力规划设计研究院 | Method for treating nitrogen-containing wastewater from power plants by nitrifying bacteria immobilized on polyurethane |
| CN106115939A (en) * | 2016-07-28 | 2016-11-16 | 北京赛富威环境工程技术有限公司 | A kind of online bio-synergistic ammonia nitrogen removal method of sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661929A (en) * | 2020-06-05 | 2020-09-15 | 北京赛富威环境工程技术有限公司 | Organic waste treatment method |
| CN111661929B (en) * | 2020-06-05 | 2021-08-24 | 北京赛富威环境工程技术有限公司 | Organic waste treatment method |
| CN114212888A (en) * | 2022-01-18 | 2022-03-22 | 北京赛富威环境工程技术有限公司 | Treatment method of high-concentration industrial wastewater |
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| CN108640294B (en) | 2020-03-10 |
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