CN101830599A - Processing method of paper making wastewater - Google Patents
Processing method of paper making wastewater Download PDFInfo
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- CN101830599A CN101830599A CN201010126607A CN201010126607A CN101830599A CN 101830599 A CN101830599 A CN 101830599A CN 201010126607 A CN201010126607 A CN 201010126607A CN 201010126607 A CN201010126607 A CN 201010126607A CN 101830599 A CN101830599 A CN 101830599A
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- pond
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- contact oxidation
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- 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
Abstract
The invention relates to the field of water quality purification processes, in particular to a process method for carrying out purification processing on paper making wastewater. A processing method of the paper making wastewater comprises the following steps of: pumping the water in a wastewater pond into a filter pond through a water pump, enabling the water to stay for 30-60 minutes in a multilayer sand filtering column in the filter pond, repeatedly filtering and back flushing for many times to flow out, then pumping into a biological contact oxidation pond through the water pump, also pumping oxygen into the wastewater through an air compressor by the biological contact oxidation pond, controlling the temperature of the water in the biological contact oxidation pond to be kept at 20-40 DEG C, enabling the wastewater to stay for 10-20 hours in the biological contact oxidation pond and then flow out, and then pumping into a fibrous membrane filter pond through the water pump for filtering, wherein the back flushing time of filtration is 25-35 minutes. The invention discloses the processing method of the paper making wastewater of an optimized membrane filtration technology, so that not only the defect that a membrane is easily blocked by suspended substances in the paper making wastewater can be avoided, but also the purified water quality is more clean.
Description
Technical field
The present invention relates to the water purifying process field, relate in particular to the processing method of paper waste being carried out purifying treatment.
Background technology
Along with the raising of people's material and cultural life, the demand of paper is increasing, thereby original paper mill extends on a large scale, and build in a large number in new paper mill.And in paper-making process, can produce a large amount of waste water, this waste water is handled and directly discharging as not adding, and will bring environment and pollute and harm.On the other hand, China's water resources anxiety, per capita water resources level is lower, and many areas and urban water resource water shortage seriously restricted development and national economy, and a large amount of clear water that need use every day in the paper industry also can cause the in short supply of water resources.Therefore extremely urgent to the research and development of paper waste processing and reuse technology.
Paper waste is mainly derived from the washes of slurrying part.According to the difference of waste paper source and production technique, the feature of washes is different, and usually, paper waste is high chroma, high COD, high salinity, high suspended matter, and its biological degradability is poor.The SS of paper waste, COD concentration are higher, and COD then is made up of non-solubility COD and solvability COD two portions, and non-solubility COD accounts for the major part that COD forms total amount usually, and when SS was removed in the waste water, most non-solubility COD were removed simultaneously.Therefore, to handle the subject matter that will solve be to remove SS and COD to waste paper making wastewater.
The method of the Processing Paper Wastewater that adopts usually is coagulating sedimentation (or air supporting) method, biochemical process and membrane filtration technique at present.Coagulating sedimentation (or air supporting) method adopts organic and inorganic polymer flocculant to precipitate impurity in the waste water, but that the water outlet of adopting this method to obtain often is difficult to is up to standard, can not directly discharge.Biochemical process is to adopt active sludge treatment process, and its shortcoming is for occurring sludge bulking easily, and treatment effect is relatively poor.Membrane filtration technique is a kind of isolation technique that develops rapidly in recent years, and application is more and more widely also arranged in wastewater treatment.But when being to use the direct Processing Paper Wastewater of membrane filtration technique, the suspended substance in the paper waste easily stops up film, makes reduce the work-ing life of film, and cost raises, and is unfavorable for industrialized demand.
Summary of the invention
Therefore, the present invention is directed to above-mentioned deficiency, propose a kind of technological process for the treatment of papermaking method of membrane filtration technique of optimization.Not only can avoid suspended substance in the paper waste easily to stop up the defective of film, and the water quality that purifies is cleaner, meets the standard of second stage employ fully.
Technical scheme of the present invention is:
Technological process for the treatment of papermaking method of the present invention is: the water of wastewater disposal basin (10) is pumped into filtering basin (20) by water pump (102), stopped 30 minutes to 60 minutes in the multilayer sand filtration post in filtering basin (20), filtering recoil repeatedly repeatedly flows out the back, pump into biological contact oxidation pond (30) by water pump (201) again, described biological contact oxidation pond (30) also pumps into oxygen by air compressor (202) in waste water, and the interior water temperature of control biological contact oxidation pond (30) remains between 20 ℃ to 40 ℃, waste water stops in biological contact oxidation pond (30) after 10 hours to 20 hours and flows out, pump into Fibrous membrane filtration pond (40) by water pump (301) again and filter, the filtering recoil time is 25 minutes to 35 minutes.
Further, the pipeline between described wastewater disposal basin (10) delivery port and the water pump (102) is provided with valve (101).
Further, the pipeline between described water pump (301) and the input aperture, Fibrous membrane filtration pond (40) is provided with valve (302).
Further, the pipeline of described Fibrous membrane filtration pond (40) delivery port is provided with valve (401).
Further, described biological contact oxidation pond (30) is provided with heating unit in high-temperature material and the pond water temperature is controlled by adding a cover on pond inner bag covering insulation material, the pond, and control water temperature remains between 20 ℃ to 40 ℃.
Further, in the described Fibrous membrane filtration pond (40) the multilayer hollow fiber film is set, the aperture of described hollow-fibre membrane is most 0.3 μ m of 0.1 μ m.
The present invention adopts as above technical scheme, proposes a kind of technological process for the treatment of papermaking method of membrane filtration technique of optimization.Not only can avoid suspended substance in the paper waste easily to stop up the defective of film, and the water quality that purifies is cleaner, meets the standard of second stage employ fully, saves paper making water, solves the problem of water resources anxiety.Thereby, in a disguised form reduce the paper industry cost, economic benefit is provided.
Description of drawings
Fig. 1 is the schematic flow sheet of treatment process of the present invention;
Fig. 2 is the device synoptic diagram of treatment process of the present invention.
Embodiment
Now the present invention is further described with embodiment in conjunction with the accompanying drawings.
Consult shown in Figure 1ly, treatment process of the present invention mainly is through following 4 steps: step 1. feeds paper waste that the sand filtration post filters recoil in the filtering basin.Step 2. oxygen oxidation in biological contact tank.Step 3: in the Fibrous membrane filtration pond, carry out the membrane filtration recoil.Step 4. is discharged the water after handling, and carries out second stage employ.
Detailed, consult shown in Figure 2, technological process for the treatment of papermaking method of the present invention is: the water of wastewater disposal basin 10 is pumped into filtering basin 20 by water pump 102, stopped 30 minutes to 60 minutes in the multilayer sand filtration post in filtering basin 20, filtering recoil repeatedly repeatedly flows out the back, pump into biological contact oxidation pond 30 by water pump 201 again, described biological contact oxidation pond 30 also pumps into oxygen by air compressor 202 in waste water, and water temperature remains between 20 ℃ to 40 ℃ in the control biological contact oxidation pond 30, waste water stops in biological contact oxidation pond 30 after 10 hours to 20 hours and flows out, pump into Fibrous membrane filtration pond 40 by water pump 301 again and filter, the filtering recoil time is 25 minutes to 35 minutes.
Preferably, the pipeline between described wastewater disposal basin 10 delivery ports and water pump 102 is provided with valve 101.Pipeline between described water pump 301 and 40 input apertures, Fibrous membrane filtration pond is provided with valve 302.The pipeline of described Fibrous membrane filtration pond 40 delivery ports is provided with valve 401.By opening and closing, can control the process of waste paper in treatment system, thereby make control convenient more valve.Above-mentioned valve can also adopt magnetic valve, can control automatically by automation control system, can make the wastewater purification unmanned.
Preferably, described biological contact oxidation pond 30 is provided with heating unit in high-temperature material and the pond water temperature is controlled by adding a cover on pond inner bag covering insulation material, the pond, and control water temperature remains between 20 ℃ to 40 ℃.When air compressor 202 pumped into oxygen in the waste water of biological contact oxidation pond 30, the control dissolved oxygen content was between 1mg/L to 5mg/L.
Preferably, in the described Fibrous membrane filtration pond 40 the multilayer hollow fiber film is set, the aperture of described hollow-fibre membrane is most 0.3 μ m of 0.1 μ m.
Illustrate: with 100 tons of the paper wastes in certain paper mill, promote through the one-level pump house and to enter in the filtering basin 20 120 centimeters high sand filtration post, stopped 40 minutes, most suspended substances in the water is removed, the recoil cycle is to carry out in 2.5 hours, filters repeatedly and recoils repeatedly; Water outlet pumps into biological contact oxidation pond 30, and logical 12 hours oxygen residence time, the control dissolved oxygen content is at 3mg/L, and temperature is controlled at 30 ℃, removes BOD (biological oxygen demand) and COD (chemical oxygen demand (COD)) in the waste water; Water outlet pumps into the tubular fibre film filter in Fibrous membrane filtration pond (40), the tubular fibre membrane pore size that adopts is 0.2 μ m, and the recoil time is 30 minutes, removes hardly degraded organic substance and salt, the water quality of water outlet sees the following form 1, and the seconary water use that can be used as water coolant and rinse water uses.
The effluent quality of table 1, embodiment
| Detect index | The result | Unit |
| ??pH | ??8.1 | |
| Iron | ??0.18 | ??mg/L |
| ??COD | ??14 | ??mg/L |
| ??BOD | Do not detect | |
| Colourity | ??4 | |
| Suspended solids | ??1.8 | ??mg/L |
| Sulphate reducing bacteria | ??12 | Individual/milliliter |
| Saprophytic microorganism | Do not detect | |
| Iron bacteria | Do not detect | |
| Average corrosion rate | ??0.051 | ??mm/a |
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present invention that do not break away from appended claims and limited; can make various variations to the present invention in the form and details, be protection scope of the present invention.
Claims (6)
1. technological process for the treatment of papermaking method, it is characterized in that: the water of wastewater disposal basin (10) is pumped into filtering basin (20) by water pump (102), stopped 30 minutes to 60 minutes in the multilayer sand filtration post in filtering basin (20), filtering recoil repeatedly repeatedly flows out the back, pump into biological contact oxidation pond (30) by water pump (201) again, described biological contact oxidation pond (30) also pumps into oxygen by air compressor (202) in waste water, and the interior water temperature of control biological contact oxidation pond (30) remains between 20 ℃ to 40 ℃, waste water stops in biological contact oxidation pond (30) after 10 hours to 20 hours and flows out, pump into Fibrous membrane filtration pond (40) by water pump (301) again and filter, the filtering recoil time is 25 minutes to 35 minutes.
2. technological process for the treatment of papermaking method according to claim 1 is characterized in that: the pipeline between described wastewater disposal basin (10) delivery port and the water pump (102) is provided with valve (101).
3. technological process for the treatment of papermaking method according to claim 1 is characterized in that: the pipeline between described water pump (301) and the input aperture, Fibrous membrane filtration pond (40) is provided with valve (302).
4. technological process for the treatment of papermaking method according to claim 1 is characterized in that: the pipeline of described Fibrous membrane filtration pond (40) delivery port is provided with valve (401).
5. technological process for the treatment of papermaking method according to claim 1, it is characterized in that: described biological contact oxidation pond (30) is provided with heating unit in high-temperature material and the pond water temperature is controlled by adding a cover on pond inner bag covering insulation material, the pond, and control water temperature remains between 20 ℃ to 40 ℃.
6. technological process for the treatment of papermaking method according to claim 1 is characterized in that: in the described Fibrous membrane filtration pond (40) the multilayer hollow fiber film is set, the aperture of described hollow-fibre membrane is most 0.3 μ m of 0.1 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101266076A CN101830599B (en) | 2010-03-12 | 2010-03-12 | Processing method of paper making wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101266076A CN101830599B (en) | 2010-03-12 | 2010-03-12 | Processing method of paper making wastewater |
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| CN101830599A true CN101830599A (en) | 2010-09-15 |
| CN101830599B CN101830599B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101266076A Expired - Fee Related CN101830599B (en) | 2010-03-12 | 2010-03-12 | Processing method of paper making wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674619A (en) * | 2011-03-14 | 2012-09-19 | 上海市政工程设计研究总院（集团）有限公司 | Combined enhanced treatment process for micro-pollution high-ammonia nitrogen raw water |
| CN104045144A (en) * | 2014-05-27 | 2014-09-17 | 大庆高新区百世环保科技开发有限公司 | Integrated apparatus for treating high-concentration chemical flooding oil field wastewater by strong oxidation gas wet contact method |
| CN104829047A (en) * | 2015-04-21 | 2015-08-12 | 德州华北纸业有限公司 | Comprehensive advanced treatment method for papermaking wastewater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609022A (en) * | 2003-10-24 | 2005-04-27 | 杨素叶 | Papermaking effluent treating method |
| CN101372382A (en) * | 2008-08-29 | 2009-02-25 | 北京桑德环保集团有限公司 | Advanced treatment method and processing system for wastepaper pulping and papermaking waste water |
| CN101643291A (en) * | 2008-08-04 | 2010-02-10 | 王威 | Method for treating waste water from paper making |
-
2010
- 2010-03-12 CN CN2010101266076A patent/CN101830599B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609022A (en) * | 2003-10-24 | 2005-04-27 | 杨素叶 | Papermaking effluent treating method |
| CN101643291A (en) * | 2008-08-04 | 2010-02-10 | 王威 | Method for treating waste water from paper making |
| CN101372382A (en) * | 2008-08-29 | 2009-02-25 | 北京桑德环保集团有限公司 | Advanced treatment method and processing system for wastepaper pulping and papermaking waste water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674619A (en) * | 2011-03-14 | 2012-09-19 | 上海市政工程设计研究总院（集团）有限公司 | Combined enhanced treatment process for micro-pollution high-ammonia nitrogen raw water |
| CN104045144A (en) * | 2014-05-27 | 2014-09-17 | 大庆高新区百世环保科技开发有限公司 | Integrated apparatus for treating high-concentration chemical flooding oil field wastewater by strong oxidation gas wet contact method |
| CN104045144B (en) * | 2014-05-27 | 2015-08-26 | 大庆高新区百世环保科技开发有限公司 | A kind of integrated apparatus of Strong oxdiative gas wet type contact process process high density chemistry displacing oil-field oil extraction waste water |
| CN104829047A (en) * | 2015-04-21 | 2015-08-12 | 德州华北纸业有限公司 | Comprehensive advanced treatment method for papermaking wastewater |
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| CN101830599B (en) | 2011-09-28 |
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Granted publication date: 20110928 Termination date: 20190312 |