CN101428937B - System for regenerating and recycling papermaking wastewater - Google Patents
System for regenerating and recycling papermaking wastewater Download PDFInfo
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- CN101428937B CN101428937B CN2008101626708A CN200810162670A CN101428937B CN 101428937 B CN101428937 B CN 101428937B CN 2008101626708 A CN2008101626708 A CN 2008101626708A CN 200810162670 A CN200810162670 A CN 200810162670A CN 101428937 B CN101428937 B CN 101428937B
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Abstract
The invention provides a paper-making wastewater reclamation and reuse system, which comprises an air-floatation treatment unit, an A/O treatment unit connected with the air-floatation treatment unit, an MBR treatment unit connected with the A/O treatment unit, a RO treatment unit connected with the MBR treatment unit, and a clean water tank connected with the RO treatment unit. The system can perform advanced treatment on paper-making wastewater so as to ensure that the water quality of output water meets the requirement on the water quality for paper-making industry, thereby realizing production reuse.
Description
Technical field
The present invention relates to technological process for the treatment of papermaking, be specifically related to a kind of system for regenerating and recycling papermaking wastewater.
Background technology
Paper industry is the rich and influential family of China's process water and blowdown, in order to practice the Scientific Outlook on Development, implements energy-saving and emission-reduction, and the developing industry recycling economy promotes enterprise's sustainable development rapidly and healthily, paper waste is carried out advanced treatment realize that the production reuse is imperative.Usually paper waste water is made up of pulp-making waste-water, wastewater from paper machine etc.Mainly contain tiny suspension fiber in the waste water, papermaking filler, printing ink, all kinds of organic and mineral compound that adds in waste paper impurity and the paper process is as sizing agent, CaCO
3Deng, have COD
CrWith SS concentration height, characteristics such as biodegradability difference.At present, domestic paper waste reuse mainly is based on carrying out cleaner production, promotes the fibrous material washing water and recycle in art production process, and the pulping water of secondary stock slurry recycles plain boiled water reuse etc.But paper waste is carried out advanced treatment, realize the production reuse, still be in the research and development starting stage thereby make effluent quality reach paper industry water water quality requirement.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of system for regenerating and recycling papermaking wastewater, can carry out advanced treatment to paper waste, realizes the production reuse thereby make effluent quality reach paper industry water water quality requirement.
For solving the problems of the technologies described above, the present invention adopts following scheme: a kind of system for regenerating and recycling papermaking wastewater comprises air supporting processing unit, the A/O processing unit that is connected with the air supporting processing unit, the MBR processing unit that is connected with the A/O processing unit, the RO processing unit that is connected with the MBR processing unit and the clean water basin that are connected with the RO processing unit.
As preferably, described MBR processing unit is provided with the MBR film.
As preferably, described RO processing unit be provided with the RO film, with the filter core that the RO symphysis connects, described RO film is provided with the cleaning water tank, is provided with scale remover case and pH adjusting tank between described RO film and the filter core.
Beneficial effect:
The present invention adopts technique scheme that a kind of system for regenerating and recycling papermaking wastewater is provided, by each unitary running in the system, particularly be provided with the MBR film at the MBR processing unit, the RO processing unit is provided with the RO film, can carry out advanced treatment to paper waste, realize the production reuse thereby make effluent quality reach paper industry water water quality requirement.Be provided with filter core, clean water tank, scale remover case and pH adjusting tank at described RO processing unit, it is more stable to make that the RO processing unit uses, and the life-span is longer, thereby improves water treatment effect and reduce energy consumption.
Figure of description
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a use process flow sheet of the present invention.
Embodiment
As Fig. 1, does a kind of system for regenerating and recycling papermaking wastewater comprise that (the sequence number part needs bracket to air supporting processing unit 1?), the A/O processing unit 2 that is connected with air supporting processing unit 1, the MBR processing unit 3 that is connected with A/O processing unit 2, the RO processing unit 4 that is connected with MBR processing unit 3 and the clean water basin 5 that are connected with RO processing unit 4.Described MBR processing unit 3 is provided with MBR film 31.The filter core 42 that described RO processing unit 4 is provided with RO film 41, is connected with RO film 41, described RO film 41 are provided with and clean water tank 43, are provided with scale remover case 44 and pH adjusting tank 45 between described RO film 41 and the filter core 42.The internal diameter of MBR film is 320～350 μ m, and the aperture is 0.1～0.2 μ m, and membrane flux is 9～16l/m
2.h.Single RO film water production rate under the standard detection condition of 25 ℃ of water temperatures is 34m
3/ d, ratio of desalinization is 99%.
As Fig. 1 and Fig. 2, in the actual use, waste water is introduced into air flotation slot in the air supporting processing unit 1 by water-in I, adopt the dosing coagulation air-float to handle, with remove contain in the waste water be suspensoid shape organic pollutant, improve the subsequent biological treatment operational conditions, improve biological treatment efficient; The water outlet of handling through air supporting is again through A/O biological processing unit 2, to remove majority of organic pollutants; 2 water outlets of A/O biological processing unit enter MBR processing unit 3, further remove organic pollutant and SS in the waste water, reduce colourity and turbidity; The desalination processing is carried out in the filter core 42 filtration-reverse osmosiss (RO) of MBR water outlet in RO processing unit 4, to remove total solids (TDS) content in the water to greatest extent, reduces specific conductivity.But RO film 41 degree of depth are removed colourity, turbidity, COD simultaneously
Cr, make reuse water quality reach the requirement of production technique.The dense water of RO is as miscellaneous water or qualified discharge.Look the RO effluent quality, utilize pH adjusting tank 45 to carry out after pH adjusts in case of necessity, by water outlet II water outlet.
After adopting the present invention, it is tested, test situation is as follows:
Experimental scale: water production rate 0.5m
3/ h, 24h moves continuously, promptly every day water production rate 12.0m
3/ d.
Test-results: test water inlet and effluent quality such as table 1:
Table 1
Claims (3)
1. a system for regenerating and recycling papermaking wastewater is characterized in that: comprise air supporting processing unit (1), the A/O processing unit (2) that is connected with air supporting processing unit (1), the MBR processing unit (3) that is connected with A/O processing unit (2), the RO processing unit (4) that is connected with MBR processing unit (3) and the clean water basin (5) that are connected with RO processing unit (4).
2. a kind of system for regenerating and recycling papermaking wastewater according to claim 1 is characterized in that: described MBR processing unit (3) is provided with MBR film (31).
3. a kind of system for regenerating and recycling papermaking wastewater according to claim 1 and 2, it is characterized in that: the filter core (42) that described RO processing unit (4) is provided with RO film (41), is connected with RO film (41), described RO film (41) is provided with and cleans water tank (43), is provided with scale remover case (44) and pH adjusting tank (45) between described RO film (41) and the filter core (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101626708A CN101428937B (en) | 2008-12-08 | 2008-12-08 | System for regenerating and recycling papermaking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101626708A CN101428937B (en) | 2008-12-08 | 2008-12-08 | System for regenerating and recycling papermaking wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101428937A CN101428937A (en) | 2009-05-13 |
| CN101428937B true CN101428937B (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101626708A Active CN101428937B (en) | 2008-12-08 | 2008-12-08 | System for regenerating and recycling papermaking wastewater |
Country Status (1)
| Country | Link |
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| CN (1) | CN101428937B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774737B (en) * | 2009-12-28 | 2011-11-23 | 北京清大国华环保科技有限公司 | Method and device for treating and recycling tobacco wastewater with double-membrane process |
| CN102120680B (en) * | 2011-04-15 | 2012-10-03 | 龙江环保集团股份有限公司 | Anoxic/oxic-membrane bioreactor water treatment device and sewage treatment method thereof |
| CN102826654A (en) * | 2012-08-23 | 2012-12-19 | 天通新环境技术有限公司 | Device and method for recovery treatment on sewage obtained by sludge heat drying |
| CN104591485B (en) * | 2014-12-31 | 2016-06-08 | 浙江东洋环境工程有限公司 | A kind of pulping wastewater treatment and reuse technology |
| CN105753255A (en) * | 2016-04-07 | 2016-07-13 | 桑德集团有限公司 | Advanced treatment recycling system for industrial park wastewater |
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2008
- 2008-12-08 CN CN2008101626708A patent/CN101428937B/en active Active
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| CN101428937A (en) | 2009-05-13 |
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