CN105481176A - Pulping and papermaking wastewater biological treatment system - Google Patents
Pulping and papermaking wastewater biological treatment system Download PDFInfo
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- CN105481176A CN105481176A CN201510981960.5A CN201510981960A CN105481176A CN 105481176 A CN105481176 A CN 105481176A CN 201510981960 A CN201510981960 A CN 201510981960A CN 105481176 A CN105481176 A CN 105481176A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
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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
- C02F1/5281—Installations for water purification using chemical 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2813—Anaerobic digestion processes using anaerobic contact processes
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a pulping and papermaking wastewater biological treatment system, which is lower in running cost and capable of effectively protecting the environment. The pulping and papermaking wastewater biological treatment system comprises a grille pond, a water collecting well, a settling pond I, a cooling tower, a balancing pond, a water quality regulating pond, an electrolytic reaction system, a hydrolysis acidification pond, a water distributing well, an EGSB (Expanded Granular Sludge Bed) reactor, a settling pond II, an A/O pond, an aeration pond, a settling pond III, a modified Fention pond, a settling pond IV, a multi-gradient flocculation pond, a filtering pond, a sludge pond, a sludge dewatering room and communicating pipelines.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to the treatment system of paper-making effluent.
Background technology
Pulping and paper-making industry is the more serious industry of contaminated wastewater, and along with people progressively improve the requirement of environmental quality, high pollution, high water consumption have become the bottleneck problem of restriction China pulping and paper-making industry development.Efficiently, the research and development of low consumption Sewage advanced treatment technology, be the domestic demand of China's pulping and paper-making industry healthy development.
China's paper industry water consumption is large, is the main industries of polluted water environment.Last century the eighties, China just On Paper-making Wasterwater Treatment Technologies research be classified as state key scientific research project, through making great efforts for many years, in the studying and combating work of Treatment process, achieve certain progress.But due to the existence of many practical problemss (as control investment, environmental protection management etc.), China's paper-making industrial waste water is still aggravating the pollution of water body.
Summary of the invention
The invention discloses a kind of paper-making effluent biological treatment system, its step is as follows:
(1) waste water enters grating tank through pipeline, establishes grid to remove larger floating matter and suspended substance in pond, ensures the normal operation of subsequent processing device.
(2) waste water successively enters into the pretreatment systems such as pump well, settling tank, cooling tower, balancing tank, modified pond after grid, a large amount of paper pulp can be avoided to enter in Waste Water Treatment, again save the cost of wastewater treatment; Waste water is regulated, balanced water quality, evenly can enter subsequent processing units, improve treatment effect, improve waste water quality, to meet the inflow requirement of each technique, improve the whole structure of wastewater treatment, guarantee the stability of whole treatment system.
(3) waste water is promoted to electrolytic reaction pond through pump after homogeneous all measures adjustment, degrades and destroys hard-degraded substance in waste water, improving the biodegradability of waste water.
(4) waste water enters hydrolysis acidification pool, the pollution substance in absorption effluent, and the acidifying bacterium in mud can make the macromolecular substance in waste water be degraded to small-molecule substance and can clear up partial sludge.(5) waste water enters distributing well, controls water temperature, pH value, ensures the necessary temperature of biological treatment and pH value, prevents mishap from producing anaerobism facility and impacts.
(6) waste water enters expanded granular sludge bed reactor (EGSB) reactor, and EGSB reactor is concept based on UASB reactor granules and triphase separator and the novel reactor improved.EGSB reactor is thin and tall type, being in operation, making granule sludge be in suspended state by maintaining higher current lift velocity, adopt effluent recycling to obtain very high stirring velocity simultaneously, ensure that fully contacting into water and granule sludge, promote organic fast degradation.The process water technique of backflow that EGSB can obtain high-level efficiency and employing is under high loads its maximum feature, and it is dense containing required for toxic substance waste water that these features process superelevation just.
(7) waste water enters settling tank, removes the mud of discharging in EGSB pond in the mode precipitated, and prevents from running mud for sludge reflux, and then obtains the process water of clarification.
(8) waste water enters A/0 pond, and by microorganic adhesion on filler, with the raw material for survival of the organism in water, decompose it, microorganism is constantly metabolic, sewage is broken and is purified.
(9) waste water enters aeration tank, and this process has selected floatation type stretched wire aeration, and it is that changeable microporous aerated pipe is connected on the floating chain (blast main that level is floating) of the water surface by air arm.Floating chain ball joint is hinged on gas blower and comes on the main line of air, and every bar floats chain can do snakelike swing by the certain area in pond.Bubble, when the effusion of aeration tube surface, in the process moved upward, is constantly subject to current flowing, the disturbances such as floating chain swing, therefore bubble is not motion vertically upward, but oblique movement, extend the residence time in water like this, also improve oxygen transfer efficiency simultaneously.This aerating system does not have fixing part under water, need not drain the water in pond during maintenance, and only the aerator under floating chain need be mentioned, the aerating apparatus of system does not have fixed sturcture bottom pond, and maintenance is convenient.
(10) waste water enters settling tank, removes the mud of aerating system discharge in the mode precipitated, and makes partial sludge backflow denitrogenation.
(11) waste water enters MODIFIED Fe nton oxidation system, carrying out oxidizing reaction, being destroyed the molecular structure of hard-degraded substance in waste water by adding modification Fenton reagent, thus improves the biodegradability of waste water, reduces the content of waste water COD.
Utilize Fenton oxidation reduction reaction, produce a large amount of through base free radical and Fe free radical, under free-radical oxidn effect, Oxidative demage is carried out to the chlorobenzene in waste water, quinones and other benzene ring type compounds, the effect of simultaneous reduction, coagulation and absorption in oxidising process, useless Organic substance in water is carried out oxidation and form C02 and water, or remove biorefractory organic residual in waste water by flocculation process.Adopt spent acid to regulate pH to waste water, and adopt the mode of ultra violet lamp to strengthen the carrying out of Fenton oxidation reaction.The particularly important is it to change in water and be difficult to the organic molecular structure of biological degradation, subsequent biochemical process is carried out smoothly.
(12) waste water enters settling tank, removes the mud of MODIFIED Fe nton oxidation system discharge in the mode precipitated.
(13) waste water enters multistage gradient flocculation basin, by adding flocculation agent, making suspended matter flocculate into macrobead and being removed by precipitation forms, and the colourity in waste water also can reduce greatly.Native system is divided into dosing stirring and flocculation sediment two portions.
Utilize the throwing out of sulfuric acid pin, adopt multistage dosing, the mode of multistage flocculation carries out flocculation sediment to useless Organic substance in water, more small flco can be remained in waste water after Fenton oxidation reaction, flocculate through multistage gradient, realize the degree of depth flocculation process of waste water, effectively reduce the content of COD in waste water, improve the biodegradability of waste water.By the enforcement of this process, for the qualified discharge of follow-up waste water is had laid a good foundation.
Waste water enters flocculation reaction district, countless small vortex is produced in reaction zone, the migration that micro-vortex is conducive to fine particle in water is condensed with collision, improve reaction efficiency, flocculated by microvovtex and contact flocculation dual function, colloid and the medicament of sewage fully react, and progressively form larger flco, through sufficient coagulation, flocculation, the mud after precipitation is separated flocculation zone.
(14) waste water enters filtering basin, adopts the mode of quartz sand filtration to filter waste water, removes suspension materials a large amount of in waste water, reduce the content of SS in waste water.
The in-line meters such as the online instrument of COD, the online instrument of pH, the online instrument of ammonia nitrogen and the online instrument of SS are established in filtering basin water outlet, immediately upload effluent quality index.If effluent quality is qualified, direct reuse; If defective, be directly promoted to distributing well through pump and do further biochemical treatment.
(15) Waste Water Treatment settling tank is discharged body refuse, mud enter sludge sump, and be promoted between sludge dewatering through sludge lifting pump after sludge sump fully mixes and carry out processed, the mud cake after dehydration directly transports outward process.
Accompanying drawing explanation
Fig. 1 is structure iron of the present invention;
the invention has the beneficial effects as follows:
To in paper-making effluent advanced treatment process, no matter be on the treatment effect of CODCr, suspended substance, ammonia nitrogen, colourity, or in the contrast of chemical feeding quantity, sludge output, effect of the present invention is all better, good treatment effect can be reached, again save processing cost, also reduce subsequent disposal expense, meet the demand of current China environmental pollution prevention and control policy and society, achieve the doulbe-sides' victory of economic benefit and environmental benefit.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment,
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
According to Figure of description, a kind of paper-making effluent biological treatment system, its step is as follows:
(1) waste water enters grating tank through pipeline, establishes grid to remove larger floating matter and suspended substance in pond, ensures the normal operation of subsequent processing device;
(2) waste water successively enters into the pretreatment systems such as pump well, settling tank, cooling tower, balancing tank, modified pond after grid;
(3) waste water is promoted to electrolytic reaction pond through pump after homogeneous all measures adjustment, degrades and destroys hard-degraded substance in waste water, improving the biodegradability of waste water;
(4) waste water enters hydrolysis acidification pool, the pollution substance in absorption effluent, and the acidifying bacterium in mud can make the macromolecular substance in waste water be degraded to small-molecule substance and can clear up partial sludge;
(5) waste water enters distributing well, controls water temperature, pH value, ensures the necessary temperature of biological treatment and pH value, prevents mishap from producing anaerobism facility and impacts;
(6) waste water enters expanded granular sludge bed reactor (EGSB) reactor, and EGSB reactor is concept based on UASB reactor granules and triphase separator and the novel reactor improved.The process water technique of backflow that EGSB can obtain high-level efficiency and employing is under high loads its maximum feature, and it is dense containing required for toxic substance waste water that these features process superelevation just;
(7) waste water enters settling tank, removes the mud of discharging in EGSB pond in the mode precipitated, and prevents from running mud for sludge reflux, and then obtains the process water of clarification;
(8) waste water enters A/0 pond, and by microorganic adhesion on filler, with the raw material for survival of the organism in water, decompose it, microorganism is constantly metabolic, sewage is broken and is purified;
(9) waste water enters aeration tank, and this process selects floatation type stretched wire aeration;
(10) waste water enters settling tank, removes the mud of aerating system discharge in the mode precipitated, and makes partial sludge backflow denitrogenation;
(11) waste water enters MODIFIED Fe nton oxidation system, carrying out oxidizing reaction, being destroyed the molecular structure of hard-degraded substance in waste water by adding modification Fenton reagent, thus improves the biodegradability of waste water, reduces the content of waste water COD;
(12) waste water enters settling tank, removes the mud of MODIFIED Fe nton oxidation system discharge in the mode precipitated;
(13) waste water enters multistage gradient flocculation basin, by adding flocculation agent, making suspended matter flocculate into macrobead and being removed by precipitation forms, and the colourity in waste water also can reduce greatly.Native system is divided into dosing stirring and flocculation sediment two portions;
(14) waste water enters filtering basin, adopts the mode of quartz sand filtration to filter waste water, removes suspension materials a large amount of in waste water, reduce the content of SS in waste water; The in-line meters such as the online instrument of COD, the online instrument of pH, the online instrument of ammonia nitrogen and the online instrument of SS are established in filtering basin water outlet, immediately upload effluent quality index.If effluent quality is qualified, direct reuse; If defective, be directly promoted to distributing well through pump and do further biochemical treatment;
(15) Waste Water Treatment settling tank is discharged body refuse, mud enter sludge sump, and be promoted between sludge dewatering through sludge lifting pump after sludge sump fully mixes and carry out processed, the mud cake after dehydration directly transports outward process.
The foregoing is only preferred embodiment of the present invention, be not limited to the present invention, all do within principle of the present invention and spirit any amendment, equivalent to replace and improvement etc., be all just included within protection scope of the present invention.
Claims (1)
1. a paper-making effluent biological treatment system, is characterized in that: its step is as follows:
(1) waste water enters grating tank through pipeline, establishes grid to remove larger floating matter and suspended substance in pond, ensures the normal operation of subsequent processing device;
(2) waste water successively enters into the pretreatment systems such as pump well, settling tank, cooling tower, balancing tank, modified pond after grid;
(3) waste water is promoted to electrolytic reaction pond through pump after homogeneous all measures adjustment, degrades and destroys hard-degraded substance in waste water, improving the biodegradability of waste water;
(4) waste water enters hydrolysis acidification pool, the pollution substance in absorption effluent, and the acidifying bacterium in mud can make the macromolecular substance in waste water be degraded to small-molecule substance and can clear up partial sludge;
(5) waste water enters distributing well, controls water temperature, pH value, ensures the necessary temperature of biological treatment and pH value, prevents mishap from producing anaerobism facility and impacts;
(6) waste water enters expanded granular sludge bed reactor (EGSB) reactor, and EGSB reactor is concept based on UASB reactor granules and triphase separator and the novel reactor improved.The process water technique of backflow that EGSB can obtain high-level efficiency and employing is under high loads its maximum feature, and it is dense containing required for toxic substance waste water that these features process superelevation just;
(7) waste water enters settling tank, removes the mud of discharging in EGSB pond in the mode precipitated, and prevents from running mud for sludge reflux, and then obtains the process water of clarification;
(8) waste water enters A/0 pond, and by microorganic adhesion on filler, with the raw material for survival of the organism in water, decompose it, microorganism is constantly metabolic, sewage is broken and is purified;
(9) waste water enters aeration tank, and this process selects floatation type stretched wire aeration;
(10) waste water enters settling tank, removes the mud of aerating system discharge in the mode precipitated, and makes partial sludge backflow denitrogenation;
(11) waste water enters MODIFIED Fe nton oxidation system, carrying out oxidizing reaction, being destroyed the molecular structure of hard-degraded substance in waste water by adding modification Fenton reagent, thus improves the biodegradability of waste water, reduces the content of waste water COD;
(12) waste water enters settling tank, removes the mud of MODIFIED Fe nton oxidation system discharge in the mode precipitated;
(13) waste water enters multistage gradient flocculation basin, by adding flocculation agent, making suspended matter flocculate into macrobead and being removed by precipitation forms, and the colourity in waste water also can reduce greatly.Native system is divided into dosing stirring and flocculation sediment two portions;
(14) waste water enters filtering basin, adopts the mode of quartz sand filtration to filter waste water, removes suspension materials a large amount of in waste water, reduce the content of SS in waste water;
The in-line meters such as the online instrument of COD, the online instrument of pH, the online instrument of ammonia nitrogen and the online instrument of SS are established in filtering basin water outlet, immediately upload effluent quality index.If effluent quality is qualified, direct reuse; If defective, be directly promoted to distributing well through pump and do further biochemical treatment;
(15) Waste Water Treatment settling tank is discharged body refuse, mud enter sludge sump, and be promoted between sludge dewatering through sludge lifting pump after sludge sump fully mixes and carry out processed, the mud cake after dehydration directly transports outward process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510981960.5A CN105481176A (en) | 2015-12-22 | 2015-12-22 | Pulping and papermaking wastewater biological treatment system |
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| CN201510981960.5A CN105481176A (en) | 2015-12-22 | 2015-12-22 | Pulping and papermaking wastewater biological treatment system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032493A (en) * | 2017-05-16 | 2017-08-11 | 杭州绿夏环境科技有限公司 | Pharmacy wastewater treatment method and processing system |
| CN107089771A (en) * | 2017-05-28 | 2017-08-25 | 王媛 | Paper-making effluent treating process |
| CN107176767A (en) * | 2017-07-20 | 2017-09-19 | 江苏理文造纸有限公司 | A kind of Novel anaerobic system depth handles waster water process |
| CN108358360A (en) * | 2018-03-22 | 2018-08-03 | 齐鲁工业大学 | A kind of efficient process system that paper waste degradation may be implemented |
| CN109279738A (en) * | 2018-09-30 | 2019-01-29 | 广西大学 | A kind of method of A-D-E-UASB-RO processing black liquor |
| CN112094002A (en) * | 2020-11-09 | 2020-12-18 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
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| WO2007089168A1 (en) * | 2006-01-31 | 2007-08-09 | Jury Olegovich Bobylev | Self-regulatng method for sewage water treatment and a device for carrying out said method |
| CN102826716A (en) * | 2012-09-13 | 2012-12-19 | 艾特克控股集团有限公司 | Treatment method for waste water in production of streptomycin sulfate |
| CN204151203U (en) * | 2014-09-29 | 2015-02-11 | 广西壮族自治区环境保护科学研究院 | A kind of dangerous waste disposal center Waste Water Treatment |
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2015
- 2015-12-22 CN CN201510981960.5A patent/CN105481176A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007089168A1 (en) * | 2006-01-31 | 2007-08-09 | Jury Olegovich Bobylev | Self-regulatng method for sewage water treatment and a device for carrying out said method |
| CN102826716A (en) * | 2012-09-13 | 2012-12-19 | 艾特克控股集团有限公司 | Treatment method for waste water in production of streptomycin sulfate |
| CN204151203U (en) * | 2014-09-29 | 2015-02-11 | 广西壮族自治区环境保护科学研究院 | A kind of dangerous waste disposal center Waste Water Treatment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032493A (en) * | 2017-05-16 | 2017-08-11 | 杭州绿夏环境科技有限公司 | Pharmacy wastewater treatment method and processing system |
| CN107089771A (en) * | 2017-05-28 | 2017-08-25 | 王媛 | Paper-making effluent treating process |
| CN107176767A (en) * | 2017-07-20 | 2017-09-19 | 江苏理文造纸有限公司 | A kind of Novel anaerobic system depth handles waster water process |
| CN108358360A (en) * | 2018-03-22 | 2018-08-03 | 齐鲁工业大学 | A kind of efficient process system that paper waste degradation may be implemented |
| CN109279738A (en) * | 2018-09-30 | 2019-01-29 | 广西大学 | A kind of method of A-D-E-UASB-RO processing black liquor |
| CN112094002A (en) * | 2020-11-09 | 2020-12-18 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
| CN112094002B (en) * | 2020-11-09 | 2021-02-05 | 山东金宜善新材料有限公司 | Multistage wastewater treatment device and treatment process thereof |
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Application publication date: 20160413 |