CN106277617A - A kind of paper-making process pulp-making waste-water comprehensive processing technique - Google Patents
A kind of paper-making process pulp-making waste-water comprehensive processing technique Download PDFInfo
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- CN106277617A CN106277617A CN201610773825.6A CN201610773825A CN106277617A CN 106277617 A CN106277617 A CN 106277617A CN 201610773825 A CN201610773825 A CN 201610773825A CN 106277617 A CN106277617 A CN 106277617A
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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
- C02F1/54—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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
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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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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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)
Abstract
The invention discloses a kind of paper-making process pulp-making waste-water comprehensive processing technique, this paper-making process pulp-making waste-water comprehensive processing technique mainly includes the collection of pulp-making waste-water, the filtration of pulp-making waste-water, precipitation process, anaerobic treatment, secondary precipitation processes, Air Exposure, waste liquid after carrying out Air Exposure is carried out a biological disposal upon, and the waste liquid after carrying out a biological disposal upon is carried out filtration treatment and disinfects.Present invention employing repeatedly precipitates the mode combined with filtration and carries out, and coordinates anaerobic treatment and Air Exposure simultaneously, can be greatly improved the effect to sewage disposal, uses water plant to purify simultaneously, is greatly improved clean-up effect, and raising processes technique superiority.
Description
Technical field
The present invention relates to papermaking wastewater technical field, be specially a kind of paper-making process pulp-making waste-water comprehensive processing technique.
Background technology
Sewage disposal: for making sewage reach a certain water body of draining or it purifies by the water quality requirement that reuses
Process.Sewage disposal is widely used in building, agricultural, and traffic, the energy, petrochemical industry, environmental protection, urban look, medical treatment, food and drink etc. are each
Individual field, comes into the daily life of common people the most more and more.
The topic polluted about water is constantly raised, and particularly underground water pollution problem, there is agriculture on the ground such as Zhejiang Hangzhou, Wenzhou
The people or enterpriser provide funds environmental protection chief to swim in the river, and cause the concern of everybody degree seriously polluted to water with this, although
Each environmental protection chief have selected silence or refusal, but the awakening of common people's environmental consciousness, and the degree deeply concerned polluting water reaches
Arrive unprecedented.Surface water pollution is it is clear that the pollution of subsoil water is but startling.In China's 1,300,000,000 populations, 70% is had to drink
Subsoil water, has more than 400 city with subsoil water as drinking water source in more than 660 city.But it is introduced, the city in the whole nation 90%
Subsoil water is contaminated.And another group data also show, subsoil water is faced with severe challenge.2011, Beijing, Shanghai etc. 9
Individual provinces and cities carried out the monitoring well accounting 2% that evaluating water quality is I class, II class to 857 local monitoring wells, and IV class, V class
Monitoring well up to 76.8%.In nine provinces and cities, what water quality was best surely belongs to Hainan Province, based on II class;Take second place in Shanghai, Beijing, many
For Group III;Heilungkiang and Jiangsu are then the highest with IV class water accounting, and Jilin, Liaoning, Guangdong, provinces and regions, Ningxia four generally only reach V
The level of class.Water pollution condition is constantly aggravated so that sewage disposal and regeneration industry are by unprecedented concern, nearly 2 years each department
Rate of gross profit is held at about 70%, and the area even having has exceeded 100%, and industry development potentiality are the biggest.
In paper-making process, produce more sewage equally, all discharge a large amount of waste water in slurrying, copy paper.It is useless that slurrying produces
Water, pollutes the most serious.Discharging waste water during pulp washing is pitchy, referred to as Heisui River, and in Heisui River, pollutant levels are the highest, and BOD is up to
5-40g/L, containing a large amount of fibers, inorganic salt and pigment.The waste water that bleaching process is discharged also contains substantial amounts of acid-base material.Copy paper
The waste water that machine is discharged, referred to as plain boiled water, wherein contains a large amount of fiber and the filler added in process of production and sizing material.To papermaking
The pulp-making waste-water process produced in journey is the problem that we constantly explore, thus goes to improve wastewater treatment efficiency.
Summary of the invention
A kind of paper-making process pulp-making waste-water comprehensive processing technique, this paper-making process pulp-making waste-water comprehensive processing technique specifically walks
Rapid as follows:
The collection of S1: pulp-making waste-water, is collected in wastewater collection pond by the pulp-making waste-water produced on each production line in paper-making process
In, being gathered together by waste water can be with the convenient integrated treatment to paper waste, it is possible to achieve the most large quantities of to waste water
Amount processes；
The filtration of S2: pulp-making waste-water, filters pulp-making waste-water, and the impurity such as the paper pulp fiber in pulp-making waste-water are reclaimed profit
With, can proceed paper pulp fiber broken to be used in papermaking, it is to avoid the waste of resource, improve the economic effect of papermaking enterprise
Benefit；
S3: precipitation process, carries out precipitation process to pulp-making waste-water after filtering, enters in sedimentation tank by pulp-making waste-water after filtration, to
Adding flocculant in sedimentation tank, be stirred sedimentation tank simultaneously, mixing time is 8-10 minute, needs in whipping process
Pulp-making waste-water in sedimentation tank is stirred fully, it is to avoid the situation of local stirring occurs, in order to avoid precipitation is the most thorough；
S4: anaerobic treatment, discharges sedimentation tank upper liquid, it is not necessary to sedimentation tank bottom sludge discharged, bottom sedimentation tank
Mud separately processes with upper liquid, takes out mud and dries, can use as roadbed earth material so that material obtains
To comprehensively utilizing, thus reduce cost of sewage disposal, waste liquid is discharged in anaerobic treatment device, carries out acidification so that have
Machine thing is hydrolyzed reaction；
S5: secondary precipitation processes, and the pulp-making waste-water after anaerobic treatment is carried out secondary precipitation process, pulp-making waste-water is put into two and sinks
Chi Zhong, adds flocculant and carries out precipitation process, be stirred waste liquid so that flocculant is sufficiently mixed with waste liquid；
S6: Air Exposure, puts in Aeration tank the Air Exposure carried out 20-24 hour by the waste liquid after secondary precipitation so that
Waste liquid is sufficiently reacted, and improves liquid waste processing effect；
S7: the waste liquid after carrying out Air Exposure is carried out a biological disposal upon, puts into waste liquid and deposits in pond, put into depositing in pond
Water plant, utilizes water plant that waste liquid is carried out biological cycle so that waste liquid obtains more high purification；
S8: the waste liquid after carrying out a biological disposal upon carries out filtration treatment, waste liquid was carried out by the filter screen using mesh number to be 400-500
Filter processes, and uses the mode of multiple times of filtration to carry out in filter process, and filtering times is at least 3 times；
S9: disinfect, to the waste liquid disinfection filtered, i.e. completes the processing procedure of whole pulp-making waste-water after sterilization,
Carry out instrument detection after sterilization, waste water is detected, the waste water after processing can be carried out after waste water reaches discharge standard
Discharge.
Preferably, during the acidification during described anaerobic treatment, the pH value of waste liquid controls, between 4-6, to work as PH
When value is not in span of control, need to carry out chemicals addition control so that in whole processing procedure, pH value controls between 4-6.
Preferably, the flocculant added in the precipitation process in described step S3 and step S5 is polyacrylamide, and wadding
The consumption of solidifying agent is that waste water per ton is 20-30 gram.
Preferably, process side to mud during secondary precipitation processes bottom sludge and step S3 produced in described step S5
Formula is identical.
Preferably, the sedimentation time in described step S3 is 20-25 hour, and the sedimentation time in step S5 is that 30-35 is little
Time.
Preferably, in described step S7, water plant processes the time is 3-4 days, and midway needs to change 3-4 time aquatic
Plant, the water plant of replacing is the water plant used without sewage disposal, and process uses water plant to be generally reed
Bamboo.
Compared with prior art, the invention has the beneficial effects as follows: the present invention uses and repeatedly precipitates the side combined with filtration
Formula is carried out, and coordinates anaerobic treatment and Air Exposure simultaneously, can be greatly improved the effect to sewage disposal, use aquatic planting simultaneously
Thing purifies, and is greatly improved clean-up effect, and raising processes technique superiority.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of paper-making process pulp-making waste-water comprehensive processing technique, these paper-making process pulp-making waste-water comprehensive processing technique concrete steps are such as
Under:
The collection of S1: pulp-making waste-water, is collected in wastewater collection pond by the pulp-making waste-water produced on each production line in paper-making process
In, being gathered together by waste water can be with the convenient integrated treatment to paper waste, it is possible to achieve the most large quantities of to waste water
Amount processes；
The filtration of S2: pulp-making waste-water, filters pulp-making waste-water, and the impurity such as the paper pulp fiber in pulp-making waste-water are reclaimed profit
With, can proceed paper pulp fiber broken to be used in papermaking, it is to avoid the waste of resource, improve the economic effect of papermaking enterprise
Benefit；
S3: precipitation process, carries out precipitation process to pulp-making waste-water after filtering, enters in sedimentation tank by pulp-making waste-water after filtration, to
Adding flocculant in sedimentation tank, be stirred sedimentation tank simultaneously, mixing time is 8-10 minute, needs in whipping process
Pulp-making waste-water in sedimentation tank is stirred fully, it is to avoid the situation of local stirring occurs, in order to avoid precipitation is the most thorough；
S4: anaerobic treatment, discharges sedimentation tank upper liquid, it is not necessary to sedimentation tank bottom sludge discharged, bottom sedimentation tank
Mud separately processes with upper liquid, takes out mud and dries, can use as roadbed earth material so that material obtains
To comprehensively utilizing, thus reduce cost of sewage disposal, waste liquid is discharged in anaerobic treatment device, carries out acidification so that have
Machine thing is hydrolyzed reaction；
S5: secondary precipitation processes, and the pulp-making waste-water after anaerobic treatment is carried out secondary precipitation process, pulp-making waste-water is put into two and sinks
Chi Zhong, adds flocculant and carries out precipitation process, be stirred waste liquid so that flocculant is sufficiently mixed with waste liquid；
S6: Air Exposure, puts in Aeration tank the Air Exposure carried out 20-24 hour by the waste liquid after secondary precipitation so that
Waste liquid is sufficiently reacted, and improves liquid waste processing effect；
S7: the waste liquid after carrying out Air Exposure is carried out a biological disposal upon, puts into waste liquid and deposits in pond, put into depositing in pond
Water plant, utilizes water plant that waste liquid is carried out biological cycle so that waste liquid obtains more high purification；
S8: the waste liquid after carrying out a biological disposal upon carries out filtration treatment, waste liquid was carried out by the filter screen using mesh number to be 400-500
Filter processes, and uses the mode of multiple times of filtration to carry out in filter process, and filtering times is at least 3 times；
S9: disinfect, to the waste liquid disinfection filtered, i.e. completes the processing procedure of whole pulp-making waste-water after sterilization,
Carry out instrument detection after sterilization, waste water is detected, the waste water after processing can be carried out after waste water reaches discharge standard
Discharge.
During acidification during described anaerobic treatment, the pH value of waste liquid controls between 4-6, when pH value is not in control
Time in the range of system, need to carry out chemicals addition control so that in whole processing procedure, pH value controls between 4-6.
The flocculant added in precipitation process in described step S3 and step S5 is polyacrylamide, and the use of flocculant
Amount is 20-30 gram for waste water per ton.
The bottom sludge that in described step S5, secondary precipitation process produces is identical to the processing mode of mud with step S3.
Sedimentation time in described step S3 is 20-25 hour, and the sedimentation time in step S5 is 30-35 hour.
In described step S7, the water plant process time is 3-4 days, and midway needs to change the water plant of 3-4 time, more
The water plant changed is the water plant used without sewage disposal, and process uses water plant to be generally Arundo donax.
Present invention employing repeatedly precipitates the mode combined with filtration and carries out, and coordinates anaerobic treatment and Air Exposure simultaneously,
The effect to sewage disposal can be greatly improved, use water plant to purify simultaneously, be greatly improved clean-up effect, at raising
Science and engineering skill superiority.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (6)
1. a paper-making process pulp-making waste-water comprehensive processing technique, it is characterised in that: this paper-making process pulp-making waste-water integrated treatment
Technique specifically comprises the following steps that
The collection of S1: pulp-making waste-water, is collected in wastewater collection pond by the pulp-making waste-water produced on each production line in paper-making process
In, being gathered together by waste water can be with the convenient integrated treatment to paper waste, it is possible to achieve the most large quantities of to waste water
Amount processes；
The filtration of S2: pulp-making waste-water, filters pulp-making waste-water, and the impurity such as the paper pulp fiber in pulp-making waste-water are reclaimed profit
With, can proceed paper pulp fiber broken to be used in papermaking, it is to avoid the waste of resource, improve the economic effect of papermaking enterprise
Benefit；
S3: precipitation process, carries out precipitation process to pulp-making waste-water after filtering, enters in sedimentation tank by pulp-making waste-water after filtration, to
Adding flocculant in sedimentation tank, be stirred sedimentation tank simultaneously, mixing time is 8-10 minute, needs in whipping process
Pulp-making waste-water in sedimentation tank is stirred fully, it is to avoid the situation of local stirring occurs, in order to avoid precipitation is the most thorough；
S4: anaerobic treatment, discharges sedimentation tank upper liquid, it is not necessary to sedimentation tank bottom sludge discharged, bottom sedimentation tank
Mud separately processes with upper liquid, takes out mud and dries, can use as roadbed earth material so that material obtains
To comprehensively utilizing, thus reduce cost of sewage disposal, waste liquid is discharged in anaerobic treatment device, carries out acidification so that have
Machine thing is hydrolyzed reaction；
S5: secondary precipitation processes, and the pulp-making waste-water after anaerobic treatment is carried out secondary precipitation process, pulp-making waste-water is put into two and sinks
Chi Zhong, adds flocculant and carries out precipitation process, be stirred waste liquid so that flocculant is sufficiently mixed with waste liquid；
S6: Air Exposure, puts in Aeration tank the Air Exposure carried out 20-24 hour by the waste liquid after secondary precipitation so that
Waste liquid is sufficiently reacted, and improves liquid waste processing effect；
S7: the waste liquid after carrying out Air Exposure is carried out a biological disposal upon, puts into waste liquid and deposits in pond, put into depositing in pond
Water plant, utilizes water plant that waste liquid is carried out biological cycle so that waste liquid obtains more high purification；
S8: the waste liquid after carrying out a biological disposal upon carries out filtration treatment, waste liquid was carried out by the filter screen using mesh number to be 400-500
Filter processes, and uses the mode of multiple times of filtration to carry out in filter process, and filtering times is at least 3 times；
S9: disinfect, to the waste liquid disinfection filtered, i.e. completes the processing procedure of whole pulp-making waste-water after sterilization,
Carry out instrument detection after sterilization, waste water is detected, the waste water after processing can be carried out after waste water reaches discharge standard
Discharge.
A kind of paper-making process pulp-making waste-water comprehensive processing technique the most according to claim 1, it is characterised in that: described anaerobism
During acidification in processing procedure, the pH value of waste liquid controls between 4-6, when pH value is not in span of control, needs
Carry out chemicals addition control so that in whole processing procedure, pH value controls between 4-6.
A kind of paper-making process pulp-making waste-water comprehensive processing technique the most according to claim 1, it is characterised in that: described step
The flocculant added in precipitation process in S3 and step S5 is polyacrylamide, and the consumption of flocculant is that waste water per ton is
20-30 gram.
A kind of paper-making process pulp-making waste-water comprehensive processing technique the most according to claim 1, it is characterised in that: described step
The bottom sludge that in S5, secondary precipitation process produces is identical to the processing mode of mud with step S3.
A kind of paper-making process pulp-making waste-water comprehensive processing technique the most according to claim 1, it is characterised in that: described step
Sedimentation time in S3 is 20-25 hour, and the sedimentation time in step S5 is 30-35 hour.
A kind of paper-making process pulp-making waste-water comprehensive processing technique the most according to claim 1, it is characterised in that: described step
In S7, the water plant process time is 3-4 days, and midway needs to change the water plant of 3-4 time, and the water plant of replacing is not
Through the water plant that sewage disposal uses, and process uses water plant to be generally Arundo donax.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610773825.6A CN106277617A (en) | 2016-08-31 | 2016-08-31 | A kind of paper-making process pulp-making waste-water comprehensive processing technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938877A (en) * | 2017-05-11 | 2017-07-11 | 安徽省美妮纸业有限责任公司 | A kind of paper-making medium wastewater handling process |
| CN108358393A (en) * | 2018-03-22 | 2018-08-03 | 天津市众源环保工程有限公司 | A kind of process and dedicated unit for administering sanitary sewage and papermaking sewage |
| CN110092547A (en) * | 2019-05-28 | 2019-08-06 | 宁波三素生物技术研究合伙企业(有限合伙) | Bamboo pulping sewage water treatment method |
| CN110668649A (en) * | 2019-10-25 | 2020-01-10 | 陕西武功东方纸业集团东鹏造纸有限公司 | Corrugated paper pulping wastewater treatment system and process |
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| JPS61197094A (en) * | 1985-02-25 | 1986-09-01 | Idemitsu Petrochem Co Ltd | Treatment of waste water |
| US20030034299A1 (en) * | 1999-08-10 | 2003-02-20 | Council Of Scientific And Industrial Research (An Indian Registered Body Incorporated Under | Process for the treatment of industrial effluents using marine algae to produce potable water |
| CN103553267A (en) * | 2013-10-12 | 2014-02-05 | 遵义县新昌纸业有限公司 | Zero-discharge treatment process of papermaking wastewater |
| CN205347144U (en) * | 2016-01-20 | 2016-06-29 | 厦门陆海科技工程有限公司 | Processing system for paper making wastewater |
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2016
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| JPS61197094A (en) * | 1985-02-25 | 1986-09-01 | Idemitsu Petrochem Co Ltd | Treatment of waste water |
| US20030034299A1 (en) * | 1999-08-10 | 2003-02-20 | Council Of Scientific And Industrial Research (An Indian Registered Body Incorporated Under | Process for the treatment of industrial effluents using marine algae to produce potable water |
| CN103553267A (en) * | 2013-10-12 | 2014-02-05 | 遵义县新昌纸业有限公司 | Zero-discharge treatment process of papermaking wastewater |
| CN205347144U (en) * | 2016-01-20 | 2016-06-29 | 厦门陆海科技工程有限公司 | Processing system for paper making wastewater |
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| 童学锋: ""印钞造纸废水回用中试研究"", 《四川环境》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938877A (en) * | 2017-05-11 | 2017-07-11 | 安徽省美妮纸业有限责任公司 | A kind of paper-making medium wastewater handling process |
| CN108358393A (en) * | 2018-03-22 | 2018-08-03 | 天津市众源环保工程有限公司 | A kind of process and dedicated unit for administering sanitary sewage and papermaking sewage |
| CN110092547A (en) * | 2019-05-28 | 2019-08-06 | 宁波三素生物技术研究合伙企业(有限合伙) | Bamboo pulping sewage water treatment method |
| CN110668649A (en) * | 2019-10-25 | 2020-01-10 | 陕西武功东方纸业集团东鹏造纸有限公司 | Corrugated paper pulping wastewater treatment system and process |
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