CN108046513A - Traditional Chinese medicine wastewater Treated sewage reusing processing system and method - Google Patents
Traditional Chinese medicine wastewater Treated sewage reusing processing system and method Download PDFInfo
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- CN108046513A CN108046513A CN201711145875.0A CN201711145875A CN108046513A CN 108046513 A CN108046513 A CN 108046513A CN 201711145875 A CN201711145875 A CN 201711145875A CN 108046513 A CN108046513 A CN 108046513A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
-
- 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
The present invention discloses a kind of traditional Chinese medicine wastewater Treated sewage reusing processing system and method.The system includes：Pretreatment system, biochemical treatment system, advanced treatment system and sludge treating system.Pretreatment system includes primary sedimentation tank, intermediate pool, for removing the suspended matter in waste water, adjusting pH, raising inflow temperature；Biochemical treatment system includes UASB ponds, hydrolysis acidification pool, contact-oxidation pool and secondary settling tank, for removing the substances such as COD, BOD in waste water, ammonia nitrogen；Advanced treatment system includes coagulative precipitation tank, ozone pond, BAF ponds, sand filter, clear water reserviors, for further removing the hardly degraded organic substance of waste water, colourity and suspended matter；Sludge treating system is using automatically folded spiral shell filter press, and sludge outward transport is as compost after press filtration.Present invention process is easy to operate, operating cost is low, and stable water outlet reaches landscape water river class recycle water standard, and generates certain environmental benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of traditional Chinese medicine wastewater Treated sewage reusing processing system and methods.
Background technology
Intermediate waste water generates, main point essentially from workshop during bubble boiling medicinal material, flushing, preparation etc. is washed
For high-concentration waste water and low concentration wastewater.Wherein high-concentration waste water includes：Dregs of a decoction extrusion liquid, alcohol precipitation waste water, extracting mother liquid waste water,
Extraction tower cleans waste water, and ion exchange regenerant waste water separates waste water, elution waste water etc., and sewage of low concentration includes most equipment
Clean waste water, Aqueous extracts condensation waste water etc..
Forming the pollution factor in traditional Chinese medicine wastewater mainly has 2 major classes, and one kind is the organic solvent used in extraction process,
It is mainly shown as COD, such as：Ethyl alcohol, ethyl acetate, n-butanol, methanol etc., these solvent biodegradabilities are good, need not pre-process
Sewage plant biochemical system can be directly entered and carry out biochemical treatment；Part organic solvent have very strong biological inhibition effect, it is necessary to
It could enter sewage disposal system by pre-treatment.Two be the other compositions in medicinal raw material, such as albumen, fat, carbohydrate, list
Rather, the macromolecular substances such as glucoside, anthraquinone, pectin, viscous fluid and the part dregs of a decoction, insoluble lignin, cellulose etc., it is main
It shows as：This pollutant biochemical such as COD, SS, colourity is poor, contains suspended matter.
Traditional Chinese medicine wastewater drug replacement frequency is high, and fluctuation is big, and water quality and quantity is extremely unstable；Complicated component, organic concentration
Height, directly discharge meeting effect on environment cause to seriously affect.How effectively to reduce the discharge of traditional Chinese medicine wastewater is Chinese herbal medicine industry development
It must solve the problems, such as.
In the actual production process, the part organic acid in medicinal material enters waste water so that traditional Chinese medicine wastewater is acid, and easy shape
Into relatively stable organic acid buffer system, sour environment is not suitable for the life of microorganism in the Anaerobic Treatment and Aerobic Process for Treatment in later stage
It is long, and organic acid buffer system is relatively stable, has stronger inhibitory action to the microorganism of biochemical system.
The content of the invention
To overcome drawbacks described above, it is an object of the invention to provide it is a kind of it is easy to operate, operating cost is low, stable water outlet reaches
Target traditional Chinese medicine wastewater Treated sewage reusing processing system and method.
In order to achieve the above objectives, traditional Chinese medicine wastewater Treated sewage reusing processing system of the present invention, the system include at least successively
Connection：Biochemical treatment system, advanced treatment system；Wherein,
The biochemical treatment system includes the UASB, hydrolysis acidification pool, contact-oxidation pool and the secondary settling tank that are connected by pipeline；
Three separators are set in wherein UASB, outside is equipped with outer circulation and pumps, and Chi Ding installation gas water separation tanks, front end passes through with intermediate pool
Elevator pump is connected；Composite filling, diving mixer are set in the hydrolysis acidification pool, Chi Ding is provided with vehicle type suction dredge；
Composite filling is set in the contact-oxidation pool, bottom of pond sets silicone rubber tube membrane type aerator；The secondary settling tank uses advection
Formula precipitates, and bottom of pond is equipped with sludge sump, and Chi Ding is provided with gantry suction dredge；
The advanced treatment system include by pipeline connect coagulative precipitation tank, ozone contact tank, BAF ponds, sand filter, clearly
Pond；It is connected outside the ozone oxidation pond with ozone generator, bottom sets titanium dish aerator, Chi Ding installation ozone tail gas
Breaking plant.BAF ponds are connected by elevator pump with ozone oxidation pond, inside set aeration tube, strainer head, and filler has cobblestone, pottery
Grain etc..Quartz sand is filled in sand filter.
Preferably, sludge treating system is further included, the sludge treating system includes the materialized mud connected by pipeline
Pond, biochemical sludge pond；Wherein, materialized mud pond is connected with primary sedimentation tank and coagulative precipitation tank；Biochemical sludge pond and UASB, hydrolysis acid
Change pond, secondary settling tank are connected, and for sludge by being exported after folded spiral shell filter press press filtration, the supernatant after system press filtration is back to regulating reservoir.
Preferably, the pretreatment system connected with biochemical treatment system by pipeline is provided in biochemical treatment system upstream
System：The pretreatment system includes the first regulating reservoir, the second regulating reservoir, primary sedimentation tank and the intermediate pool that are connected by pipeline,
In the first regulating reservoir, the second regulating reservoir set filter screen and mechanical grille machine；Central draft tube is set in the primary sedimentation tank；Institute
Steam-heating pipe is set in the intermediate pool stated.
Preferably, the throwing device for adding PAC and PAM is provided in the coagulative precipitation tank front end, is mixed in described
Solidifying sedimentation basin rear end is equipped with tube settling.
Preferably, the 3rd regulating reservoir connected with hydrolysis acidification pool is further included, the 3rd regulating reservoir is made for receiving
Agent waste water.
In order to achieve the above objectives, traditional Chinese medicine wastewater processing method of the present invention, including at least following steps：
Biochemical treatment step：Pretreated water is carried out organic matter in UASB to be decomposed, wherein, a part is converted
For biogas, a part is converted into the anaerobic sludge of growth；By water outlet gravity flow into hydrolysis acidification pool, in further degrading waste water
Residual organic substances, while difficult degradation macromolecular substances are converted into small-molecule substance；The water outlet of hydrolysis acidification pool enters catalytic oxidation
Pond is acted on by the aeration of roots blower, is decomposed residual organic substances in waste water using aerobic microbiological herein, water outlet gravity flow
Enter secondary settling tank and carry out mud-water separation；
Advanced treating step：Secondary clarifier effluent flows into coagulative precipitation tank, is further removed by adding PAC, PAM in waste water
Suspended matter, the supernatant after tube settling enter ozone contact tank；Then ozone contact tank water outlet pump be promoted to BAF ponds into
Row advanced treating；The water outlet of BAF ponds is discharged after sand filter filtering reaches landscape water reuse standard.
Preferably, the step of pretreatment is：
It is then quantitative to the second regulating reservoir from water pump into the first regulating reservoir after high-concentration waste water is collected first by workshop
Water distribution is quantitatively lifted into primary sedimentation tank after the second regulating reservoir homogeneous is measured by elevator pump, carries out mud-water separation；Supernatant enters
Intermediate pool.
Preferably, the method includes at least following steps：The step of described pretreatment is the hydrolysis acidification
Pond is additionally operable to receive preparation waste water.
Compared with prior art, the advantage of the invention is that：
1) most COD in waste water, can be removed using two UASB and the processing of hydrolysis acidification diphasic anaerobic, and effectively by difficulty
The macromolecular of degradation will be small molecule, effectively improve waste water B/C, contribute to follow-up Aerobic biological process.
2) organic matter for being difficult to degrade in waste water, can be further removed using ozone+BAF techniques, ensures that water outlet meets
《Urban sewage reutilization landscape water water quality》Middle ornamental value landscape water river class recycle water standard.
3), the sludge that the biogas generated can be used for after boiler burning, press filtration is taken out for compost, generates certain environment
And economic benefit.
4), entire process system is stable up to standard, and operating cost is low, easy to operation.
Description of the drawings
Fig. 1 is the process flow chart of one embodiment of the invention.
Specific embodiment
Below by drawings and examples, work of the present invention is described in further detail, to help people in the art
Member has more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
Traditional Chinese medicine wastewater Treated sewage reusing processing system of the present invention, the system include at least what is be sequentially communicated：Biochemical treatment
System, advanced treatment system；Wherein,
The biochemical treatment system includes the UASB, hydrolysis acidification pool, contact-oxidation pool and the secondary settling tank that are connected by pipeline；
Three separators are set in wherein UASB, outside is equipped with outer circulation and pumps, and Chi Ding installation gas water separation tanks, front end passes through with intermediate pool
Elevator pump is connected；Composite filling, diving mixer are set in the hydrolysis acidification pool, Chi Ding is provided with vehicle type suction dredge；
Composite filling is set in the contact-oxidation pool, bottom of pond sets silicone rubber tube membrane type aerator；The secondary settling tank uses advection
Formula precipitates, and bottom of pond is equipped with sludge sump, and Chi Ding is provided with gantry suction dredge；
The advanced treatment system include by pipeline connect coagulative precipitation tank, ozone contact tank, BAF ponds, sand filter, clearly
Pond；It is connected outside the ozone oxidation pond with ozone generator, bottom sets titanium dish aerator, Chi Ding installation ozone tail gas
Breaking plant.BAF ponds are connected by elevator pump with ozone oxidation pond, inside set aeration tube, strainer head, and filler has cobblestone, pottery
Grain etc..Quartz sand is filled in sand filter.
The advantages of the invention described above, is：
1) most COD in waste water, can be removed using two UASB and the processing of hydrolysis acidification diphasic anaerobic, and effectively by difficulty
The macromolecular of degradation will be small molecule, effectively improve waste water B/C, contribute to follow-up Aerobic biological process.
2) organic matter for being difficult to degrade in waste water, can be further removed using ozone+BAF techniques, ensures that water outlet meets
《Urban sewage reutilization landscape water water quality》Middle ornamental value landscape water river class recycle water standard.
3), the sludge that the biogas generated can be used for after boiler burning, press filtration is taken out for compost, generates certain environment
And economic benefit.
, entire process system it is stable up to standard, operating cost is low, easy to operation.
Embodiment
As shown in Figure 1, traditional Chinese medicine wastewater is broadly divided into extraction high-concentration waste water, extraction low concentration wastewater, preparation and other are useless
Water.
Pretreatment：High-concentration waste water enters regulating reservoir 1 after being collected first by workshop, then quantitative to regulating reservoir 2 from water pump
Water distribution is quantitatively lifted into primary sedimentation tank after 2 homogeneous of regulating reservoir is measured by elevator pump, first adjusts pH to 8 or so, then adds successively
Enter PAC, PAM, lignin, cellulose pigment and other suspended matters in waste water are flocculated into bulky grain suspended matter, are then reserved for one's own use
Into primary sedimentation tank, mud-water separation, supernatant enters intermediate pool.
Biochemical treatment：Winter is promoted to UASB after intermediate pool heating with elevator pump, and large amount of organic is divided in UASB
Solution, a part are converted into biogas, and a part is converted into the anaerobic sludge of growth.Water outlet gravity flow is into hydrolysis acidification pool and makes
Agent waste water and other waste water etc. converge, the residual organic substances in this further degrading waste water, while difficult degradation macromolecular substances turn
Turn to small-molecule substance.Water outlet enters contact-oxidation pool, is acted on herein by the aeration of roots blower, will using aerobic microbiological
Residual organic substances decompose in waste water, and water outlet carries out mud-water separation from secondary settling tank is flowed into.
Advanced treatment system：Secondary clarifier effluent flows into coagulative precipitation tank, is further removed by adding PAC, PAM in waste water
Suspended matter, the supernatant after tube settling enter ozone contact tank, by the Strong oxdiative ability of ozone by difficult degradation in waste water
Macromolecular substances be degraded to biochemical small-molecule substance, improve B/C ratios, chromatophagous colour developing group, then water outlet is used
Pump is promoted to BAF ponds and carries out advanced treating, further removes the pollutants such as remaining COD, BOD, colourity, SS in waste water.Water outlet
It is emitted into after sand filter filtering reaches landscape water reuse standard in Landscape River.
Sludge treating system：Materialized mud pond is connected with primary sedimentation tank and coagulating sedimentation sedimentation basin.Biochemical sludge pond and UASB,
Hydrolysis acidification pool, secondary settling tank are connected, and sludge after folded spiral shell filter press press filtration by transporting outward.Supernatant after system press filtration is back to tune
Save pond.
It is further improved as above-described embodiment, preparation waste water enters regulating reservoir 3 with other waste water, is directly carried by pump
Hydrolysis acidification pool is risen to mix with UASB water outlets.
More than, it is only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with sheet
In the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in should all be covered those skilled in the art
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection domain that claim is defined.
Claims (8)
1. a kind of traditional Chinese medicine wastewater Treated sewage reusing processing system, it is characterised in that：The system includes at least what is be sequentially communicated：It is raw
Change processing system, advanced treatment system；Wherein,
The biochemical treatment system includes the UASB, hydrolysis acidification pool, contact-oxidation pool and the secondary settling tank that are connected by pipeline；Wherein
Three separators are set in UASB, outside is equipped with outer circulation and pumps, and Chi Ding installation gas water separation tanks, front end passes through promotion with intermediate pool
Pump is connected；Composite filling, diving mixer are set in the hydrolysis acidification pool, Chi Ding is provided with vehicle type suction dredge；Described
Contact-oxidation pool in set composite filling, bottom of pond sets silicone rubber tube membrane type aerator；The secondary settling tank is sunk using flat flow
It forms sediment, bottom of pond is equipped with sludge sump, and Chi Ding is provided with gantry suction dredge；
The advanced treatment system includes connecting coagulative precipitation tank, ozone contact tank, BAF ponds, sand filter, clear water by pipeline
Pond；It is connected outside the ozone oxidation pond with ozone generator, bottom sets titanium dish aerator, and Chi Ding installation ozone tail gas is broken
Bad device.BAF ponds are connected by elevator pump with ozone oxidation pond, inside set aeration tube, strainer head, and filler has cobblestone, haydite
Deng.Quartz sand is filled in sand filter.
2. traditional Chinese medicine wastewater Treated sewage reusing processing system as described in claim 1, it is characterised in that：Further include Treatment of Sludge system
System, the sludge treating system include the materialized mud pond, the biochemical sludge pond that are connected by pipeline；Wherein, materialized mud pond with
Primary sedimentation tank and coagulative precipitation tank are connected；Biochemical sludge pond is connected with UASB, hydrolysis acidification pool, secondary settling tank, and sludge is by folding spiral shell pressure
It is exported after filter press filtration, the supernatant after system press filtration is back to regulating reservoir.
3. traditional Chinese medicine wastewater Treated sewage reusing processing system as described in claim 1, it is characterised in that：In biochemical treatment system upstream
It is provided with the pretreatment system connected with biochemical treatment system by pipeline：The pretreatment system includes what is connected by pipeline
First regulating reservoir, the second regulating reservoir, primary sedimentation tank and intermediate pool, wherein the first regulating reservoir, the second regulating reservoir set filter screen and machine
Tool grid maker；Central draft tube is set in the primary sedimentation tank；Steam-heating pipe is set in the intermediate pool.
4. traditional Chinese medicine wastewater Treated sewage reusing processing system as described in claim 1, it is characterised in that：In the coagulative precipitation tank
Front end is provided with the throwing device for adding PAC and PAM, and tube settling is equipped in the coagulative precipitation tank rear end.
5. a kind of traditional Chinese medicine wastewater processing method according to claim 1, which is characterized in that further include and connect with hydrolysis acidification pool
The 3rd logical regulating reservoir, the 3rd regulating reservoir are used to receive preparation waste water.
6. a kind of traditional Chinese medicine wastewater processing method, which is characterized in that the method includes at least following steps：
Biochemical treatment step：Pretreated water is carried out organic matter in UASB to be decomposed, wherein, a part is converted into natural pond
Gas, a part are converted into the anaerobic sludge of growth；By water outlet gravity flow into hydrolysis acidification pool, with remaining in further degrading waste water
Organic matter, while difficult degradation macromolecular substances are converted into small-molecule substance；The water outlet of hydrolysis acidification pool enters contact-oxidation pool,
This is acted on by the aeration of roots blower, is decomposed residual organic substances in waste water using aerobic microbiological, and water outlet flows into two certainly
Heavy pond carries out mud-water separation；
Advanced treating step：Secondary clarifier effluent flows into coagulative precipitation tank, is further removed in waste water by adding PAC, PAM and suspended
Object, the supernatant after tube settling enter ozone contact tank；Then ozone contact tank water outlet is promoted to BAF ponds with pump and carries out deeply
Degree processing；The water outlet of BAF ponds is discharged after sand filter filtering reaches landscape water reuse standard.
7. a kind of traditional Chinese medicine wastewater processing method according to claim 5, which is characterized in that the method include at least with
Lower step：The step of described pretreatment is：
Into the first regulating reservoir after high-concentration waste water is collected first by workshop, then matched somebody with somebody from water pump is quantitative to the second regulating reservoir
Water is quantitatively lifted into primary sedimentation tank after the second regulating reservoir homogeneous is measured by elevator pump, carries out mud-water separation；During supernatant enters
Between pond.
8. a kind of traditional Chinese medicine wastewater processing method according to claim 5, which is characterized in that the method include at least with
Lower step：The step of described pretreatment is that the hydrolysis acidification pool is additionally operable to receive preparation waste water.
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| CN201711145875.0A CN108046513A (en) | 2017-11-17 | 2017-11-17 | Traditional Chinese medicine wastewater Treated sewage reusing processing system and method |
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| CN201711145875.0A CN108046513A (en) | 2017-11-17 | 2017-11-17 | Traditional Chinese medicine wastewater Treated sewage reusing processing system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039496A (en) * | 2018-10-15 | 2020-04-21 | 上海方合正环境工程科技股份有限公司 | Waste water treatment method |
| CN112794570A (en) * | 2020-12-29 | 2021-05-14 | 华夏碧水环保科技有限公司北京分公司 | Method for treating wastewater generated in white peony root traditional Chinese medicine production |
Citations (1)
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| CN201825822U (en) * | 2010-09-21 | 2011-05-11 | 杭州达康环境工程有限公司 | Ozone-BAF integrated reaction equipment used for wastewater treatment |
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2017
- 2017-11-17 CN CN201711145875.0A patent/CN108046513A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201825822U (en) * | 2010-09-21 | 2011-05-11 | 杭州达康环境工程有限公司 | Ozone-BAF integrated reaction equipment used for wastewater treatment |
Non-Patent Citations (1)
| Title |
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| 吕建伟等: "UASB―水解酸化―接触氧化工艺处理阿维菌素废水", 《给水排水》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039496A (en) * | 2018-10-15 | 2020-04-21 | 上海方合正环境工程科技股份有限公司 | Waste water treatment method |
| CN112794570A (en) * | 2020-12-29 | 2021-05-14 | 华夏碧水环保科技有限公司北京分公司 | Method for treating wastewater generated in white peony root traditional Chinese medicine production |
| CN112794570B (en) * | 2020-12-29 | 2021-10-22 | 华夏碧水环保科技有限公司北京分公司 | Method for treating wastewater generated in white peony root traditional Chinese medicine production |
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Application publication date: 20180518 |