CN107365017A - domestic sewage treatment process - Google Patents
domestic sewage treatment process Download PDFInfo
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- CN107365017A CN107365017A CN201710610593.7A CN201710610593A CN107365017A CN 107365017 A CN107365017 A CN 107365017A CN 201710610593 A CN201710610593 A CN 201710610593A CN 107365017 A CN107365017 A CN 107365017A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
- C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
-
- 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
Abstract
The present invention relates to sewage treatment area, there is provided a kind of domestic sewage treatment process, comprises the following steps：Coarse filtration, the processing of oxygen-enriched pond, set hollow fiber microfiltration membrane to be filtered in bioselection groove, anti-nitration reaction carried out in anoxic biochemistry pool, sewage carries out mud-water separation, sewage and is sufficiently mixed in ozone contact tank in contact sterilizing, regeneration pond to utilize chlorophyll processing in second pond.Blue-green algae energy a large amount of absorbed nitrogen, phosphorus of the present invention, and acetic acid helps to kill blue-green algae in sewage, chlorophyll can have good suction-operated to miscellaneous bacteria in sewage and suspended particulate, and after the solidification of lactic acid bacteria, lactic acid bacteria absorption is mingled with the chlorophyll formation precipitation of miscellaneous bacteria and suspended particulate, so that bacterial content substantially reduces in sewage.
Description
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of domestic sewage treatment process.
Background technology
China《Law on the Prevention and Treatment of Water Pollution》Provide the residential block, tourist attractions, degree to municipal sewage collection system system can not be included
The sewage of the scattered crowd settlement discharge such as false village, sanatorium, airport, railway station, economic development zone and the land of independent industries and mining area
Industrial wastewater answer treatment in situ qualified discharge.Sanatorium, large hotel hotel, large-scale restaurant, amusement and travel holiday village, landscape
Area mountain villa, Expressway Service are all dispersant type domestic wastewater emission sources.Sanatorium, holiday village, mountain villa are typically all close near the mountain
Water, away from city, it can not be connected with urban drainage pipe network.Sensitive water body is additionally related to, therefore the standard discharged requires very high,
If realizing qualified discharge, the investment of sewage treatment facility can be very big, and operating cost also can be improved accordingly.
With the development of economy and society, people's living standard more and more higher, domestic sewage yield is increasing, so
Need to handle substantial amounts of sanitary sewage to reach discharge standard.And sewage nitrogen, phosphorus after current handling process processing
Content is still higher, there is many influences on water quality.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of domestic sewage treatment process.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of domestic sewage treatment process, comprises the following steps：
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration；
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond
Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool；
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life
Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to
It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water；
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters
Oxygen biochemistry pool；
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part
Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction；Another part is flowed into certainly by downflow weir
Enter second pond；
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond
Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow,
Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil
It is natural；
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump
Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top
Downflow weir flows automatically to ozone contact tank；
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank
Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank；
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube
Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Further, acidification pool acidification is sent into the water outlet of bioselection groove in the step (2), pH value in acidification pool
Stabilization adds the OPC solution that procyanidin concentration is 0.25~1mg/mL, sewage into acidification pool in 6.7-6.8
Anoxic biochemistry pool is re-fed into after processing.
Further, it is added with triclosan in the anoxic biochemistry pool.
Further, Soybean Peptide is also added with the anoxic biochemistry pool, addition adds according to every cubic metre of sewage
0.1kg Soybean Peptides are defined.
Further, being added in the aerobic biochemical pool has calcium sulfate or barium sulfate.
Further, the water of outflow is then exhausted from after sedimentation basin in the step (9), is added with the sedimentation basin
Konjaku powder, konjaku powder addition are 2 times of calcium sulfate or barium sulfate addition.
The beneficial effects of the invention are as follows：Blue-green algae can largely absorbed nitrogen, phosphorus, and acetic acid helps to kill blue-green algae in sewage, leaf
Green element can have good suction-operated to miscellaneous bacteria in sewage and suspended particulate, and after the solidification of lactic acid bacteria, lactic acid bacteria
Absorption is mingled with the chlorophyll formation precipitation of miscellaneous bacteria and suspended particulate, so that bacterial content substantially reduces in sewage.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of domestic sewage treatment process, comprises the following steps：
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration；
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond
Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool；
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life
Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to
It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water；
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters
Oxygen biochemistry pool；
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part
Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction；Another part is flowed into certainly by downflow weir
Enter second pond；
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond
Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow,
Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil
It is natural；
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump
Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top
Downflow weir flows automatically to ozone contact tank；
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank
Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank；
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube
Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Acidification pool acidification is sent into the water outlet of bioselection groove in step (2), and pH value is stablized in 6.7-6.8 in acidification pool,
The OPC solution that procyanidin concentration is 0.35mg/mL is added into acidification pool simultaneously, anoxic is re-fed into after sewage disposal
Biochemistry pool.
Triclosan is added with anoxic biochemistry pool.
Soybean Peptide is also added with anoxic biochemistry pool, addition adds 0.1kg Soybean Peptides according to every cubic metre of sewage and is defined.
Being added in aerobic biochemical pool has calcium sulfate or barium sulfate.
The water of outflow is then exhausted from after sedimentation basin in step (9), is added with konjaku powder in sedimentation basin, konjaku powder adds
Dosage is 2 times of calcium sulfate or barium sulfate addition.
Embodiment 2
A kind of domestic sewage treatment process, comprises the following steps：
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration；
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and indigo plant is planted in oxygen-enriched pond
Algae, sewage are sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool；
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into life
Thing selects groove, sets hollow fiber microfiltration membrane to be filtered in bioselection groove, and being added in bioselection groove has hydrogen peroxide, according to
It is standard that 0.01kg hydrogen peroxide is added per cubic meter of water；
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters
Oxygen biochemistry pool；
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a water outlet part
Anoxic biochemistry pool is back to by reflux pump as nitrification liquid, carries out anti-nitration reaction；Another part is flowed into certainly by downflow weir
Enter second pond；
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge is in the sludge bucket of second pond
Deposition concentration, storage basin being discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow,
Partial sludge in storage basin is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned after dehydration by afforesting in a manner of soil
It is natural；
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor, water with filter pump
Enter from the bottom of biological activated carbon reactor, two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top
Downflow weir flows automatically to ozone contact tank；
(8) clear water come from biological activated carbon reactor is and caused smelly in ozone generator in ozone contact tank
Carrier of oxygen is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank；
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cube
Rice water adds 0.01kg chlorophyll and is defined, and then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
Acidification pool acidification is sent into the water outlet of bioselection groove in step (2), and pH value is stablized in 6.7-6.8 in acidification pool,
The OPC solution that procyanidin concentration is 0.8mg/mL is added into acidification pool simultaneously, anoxic life is re-fed into after sewage disposal
Change pond.
Triclosan is added with anoxic biochemistry pool.
Soybean Peptide is also added with anoxic biochemistry pool, addition adds 0.1kg Soybean Peptides according to every cubic metre of sewage and is defined.
Being added in aerobic biochemical pool has calcium sulfate or barium sulfate.
The water of outflow is then exhausted from after sedimentation basin in step (9), and konjaku powder, konjaku essence are added with the sedimentation basin
Powder addition is 2 times of calcium sulfate or barium sulfate addition.
Experiment one
Some community life sewage is divided into three parts of equivalent, utilizes embodiment 1,2 and existing sewage water treatment method
To handle respectively every part of sewage.Result of the test such as following table：
Experiment proves：State quota is fully achieved in sewage after sewage treatment process processing of the present invention, wherein processing is completed
Water nitrogen afterwards, phosphorus amount are very low.
Its Plays one：《Urban sewage reutilization urban reclaimed water water quality》(GB/T18920-2002) it is most stringent of in
Index
Standard two：《Urban sewage reutilization water for scenic environment use water quality》(GB/T18921-2002) most stringent of water in
Index in scape
Experiment two
Selection example 1,2 processing methods；In the case of other processing steps are constant by embodiment 1,2 processing methods
The step of chlorophyll is added in step (9), is handled using lactic acid bacteria is tested after removing, and selects the life of certain deluxe hotel
Sewage, and sewage is divided into 4 parts of equivalent, result of the test such as following table.
As seen from the above table, chlorophyll is added, using causing to remove bacterium and right completely in sewage disposal after lactic acid bacteria
The reduction that suspended particulate has highly significant acts on.
Experiment three
Following four test groups are selected to be tested, embodiment 1, embodiment 2, other techniques of embodiment 1 are constant but do not add
Add konjaku powder, other techniques of embodiment 2 constant but do not add konjaku powder, it is large-scale to some with aforementioned four test group respectively
The sanitary sewage of community is tested, as a result such as following table：
As seen from the above table, can be so that the content of heavy metal ions in sewage be largely reduced due to the addition of konjaku powder.
Precipitation is washed out because konjaku powder can form aqua complex with heavy metal.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of domestic sewage treatment process, it is characterised in that comprise the following steps：
(1) sanitary sewage enters oil interceptor after first passing around mechanical grille coarse filtration；
(2) oil interceptor water outlet is pumped into oxygen-enriched pond, and it is 24.5% to maintain oxygen-enriched pond oxygen concentration, and plants blue-green algae in oxygen-enriched pond,
Sewage is sent into acidification pool after 2-3 hours are handled in oxygen-enriched pond, and it is 6.88-6.90 to maintain its PH by acetic acid in acidification pool；
(3) sewage arrives preliminary sedimentation tank by inlet water lifting pumps lifting, and solids content few sewage in preliminary sedimentation tank top is pumped into biological choosing
Select groove, set hollow fiber microfiltration membrane to be filtered in bioselection groove, being added in bioselection groove has hydrogen peroxide, according to often standing
It is standard that Fang meter Shui, which adds 0.01kg hydrogen peroxide,；
(4) sewage that bioselection groove comes out, which is sent into anoxic biochemistry pool, carries out anti-nitration reaction, and water outlet gravity flow enters aerobic life
Change pond；
(5) sewage come from anoxic biochemistry pool is aerated in aerobic biochemical pool carries out aerobic biochemical reaction, a part of conduct of water outlet
Nitrification liquid is back to anoxic biochemistry pool by reflux pump, carries out anti-nitration reaction；Another part enters two by downflow weir gravity flow
Heavy pond；
(6) sewage come from aerobic biochemical pool carries out mud-water separation in second pond, and sludge deposits in the sludge bucket of second pond
Concentration, storage basin is discharged into by sludge valve by fluid pressure, top clarified solution enters clear water reserviors by downflow weir gravity flow, stores up mud
Partial sludge in pond is back to hydrolysis acidification pool, is hydrolyzed, and sludge is returned certainly after dehydration by afforesting in a manner of soil
So；
(7) water outlet come from second pond flows automatically to clear water reserviors, is then transported to biological activated carbon reactor with filter pump, and water is from life
The bottom of thing activated carbon reactor enters, and two biological activated carbon reactors are in parallel, and built-in activated carbon, water outlet passes through top overflow
Weir flows automatically to ozone contact tank；
(8) from the next clear water of biological activated carbon reactor in ozone contact tank, with the caused ozone gas in ozone generator
Body is sufficiently mixed contact sterilizing by sterilizing gas distributor in ozone contact tank；
(9) sewage after sterilizing is sent into regeneration pond, chlorophyll is added to the sewage for entering regeneration pond, according to every cubic meter of water
Add 0.01kg chlorophyll to be defined, then by water conservancy with orifice plate jet to lactic acid bacteria web plate, the water of outflow can discharge.
2. domestic sewage treatment process according to claim 1, it is characterised in that bioselection groove in the step (2)
Acidification pool acidification is sent into water outlet, and pH value is stable in 6.7-6.8 in acidification pool, while addition OPC is dense into acidification pool
The OPC solution for 0.25~1mg/mL is spent, anoxic biochemistry pool is re-fed into after sewage disposal.
3. domestic sewage treatment process according to claim 1, it is characterised in that three are added with the anoxic biochemistry pool
Chlorine is given birth to.
4. domestic sewage treatment process according to claim 3, it is characterised in that be also added with the anoxic biochemistry pool
Soybean Peptide, addition add 0.1kg Soybean Peptides according to every cubic metre of sewage and are defined.
5. domestic sewage treatment process according to claim 1, it is characterised in that being added in the aerobic biochemical pool has sulphur
Sour calcium or barium sulfate.
6. according to the domestic sewage treatment process described in any one of claim 1 to 5, it is characterised in that flowed in the step (9)
The water gone out is then exhausted from after sedimentation basin, is added with konjaku powder in the sedimentation basin, konjaku powder addition be calcium sulfate or
2 times of barium sulfate addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610593.7A CN107365017A (en) | 2017-07-25 | 2017-07-25 | domestic sewage treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610593.7A CN107365017A (en) | 2017-07-25 | 2017-07-25 | domestic sewage treatment process |
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| CN107365017A true CN107365017A (en) | 2017-11-21 |
Family
ID=60307706
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| CN201710610593.7A Pending CN107365017A (en) | 2017-07-25 | 2017-07-25 | domestic sewage treatment process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935157A (en) * | 2017-11-30 | 2018-04-20 | 兰秋波 | A kind of processing method of organic wastewater |
| CN109912046A (en) * | 2019-03-30 | 2019-06-21 | 杨晓飞 | A kind of water and treat agricultural waste agent and preparation method thereof |
| CN110845004A (en) * | 2019-11-22 | 2020-02-28 | 北京工业大学 | Method for enhancing biological degradation of triclosan in nitration system by using surfactant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935157A (en) * | 2017-11-30 | 2018-04-20 | 兰秋波 | A kind of processing method of organic wastewater |
| CN109912046A (en) * | 2019-03-30 | 2019-06-21 | 杨晓飞 | A kind of water and treat agricultural waste agent and preparation method thereof |
| CN110845004A (en) * | 2019-11-22 | 2020-02-28 | 北京工业大学 | Method for enhancing biological degradation of triclosan in nitration system by using surfactant |
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Application publication date: 20171121 |