CN204079711U - A kind of regeneration paper mill wastewater recycling and processing device - Google Patents
A kind of regeneration paper mill wastewater recycling and processing device Download PDFInfo
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- CN204079711U CN204079711U CN201420550602.XU CN201420550602U CN204079711U CN 204079711 U CN204079711 U CN 204079711U CN 201420550602 U CN201420550602 U CN 201420550602U CN 204079711 U CN204079711 U CN 204079711U
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- paper mill
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- mill wastewater
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Abstract
The utility model provides a kind of regeneration paper mill wastewater recycling and processing device, belongs to environmental engineering, technical field of sewage.Regeneration paper mill wastewater recycling and processing device, its structure comprises water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond and storage basin; Described water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond are connected by pipeline successively with storage basin, described coagulation efficient air-floating pond water outlet is provided with clean water basin, and clean water basin water outlet is connected with slip house, described second pond and aeration settling pond are respectively equipped with sludge pipe, are connected with storage basin.The utility model is reasonable in design, easy to use, can effectively process regeneration paper mill wastewater and reclaim, will drop to minimum to the pollution of environment, and can reduce sludge discharge, improves the cycling and reutilization of effluent quality and water.
Description
Technical field
The utility model relates to environmental engineering, technical field of sewage, specifically a kind of regeneration paper mill wastewater recycling and processing device.
Background technology
Regeneration paper mill wastewater mainly results from the operations such as deinking, washing, purification screening, concentrated, copy paper.China's recycled writing paper papermaking enterprise quantity is many, and institute's effluent is distinguished to some extent because of recycled writing paper kind, source and treatment process difference, and wastewater treatment is limited to pulp recovery part more, and effluent quality does not reach environment protection emission requirement.Regeneration paper mill wastewater complicated component, usually containing xylogen, Mierocrystalline cellulose and fiber fines, and the sizing agent, talcum powder etc. that add in copy paper operation, in the deinking pulp-making waste-water being raw material with old newsprint, useless magazine paper and useless book paper, also containing the pollutent such as ink, deinking agent.Regeneration and reparation main manifestations is that SS content is high, colourity is large and containing complicated COD material, wastewater biodegradability is poor, if not in addition process can cause environmental pollution.
Traditional method for processing paper-making waste water of regenerative paper mainly contains coagulant sedimentation, biochemical treatment process etc.But be through the waste water content after coagulant sedimentation process to be often difficult to reach emission request.Biochemical treatment process the most typical case is activated sludge process, because its processing efficiency is high, stable and reliable operation, becomes the main flow of waste water treatment process; But the method floor space is large, initial cost is high, and due to waste component complexity, under the high temperature of some months in summer, the efficiency of active sludge treatment is very low, in waste water, aromatics is difficult to degraded, and waste water is after treatment difficult to reach emission standard, and water outlet NH
3-N concentration is high, easily causes body eutrophication, adds environmental stress.
Recycled writing paper papermaking enterprise effluent reuse is often only limitted to the slagging-off, pulp washing, rinsing etc. of the production process workshop section not high to water quality requirement, but these workshop section's use water there are certain requirements the index such as COD, turbidity, and existing wastewater processing technology can not meet the water quality requirement of these workshop sections.If regeneration paper mill wastewater reuse after general process, can directly have influence on paper effect, must adopt more advanced treatment process, on the basis of original sewage qualified discharge, reduce water outlet COD, BOD further
5, NH
3-N and SS content.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, one is provided to process regeneration paper mill wastewater and to reclaim, water outlet water quality reaching standard be can be recycled, and the regeneration paper mill wastewater recycling and processing device of water of productive use amount, reduction sludge discharge can be reduced.
The utility model solves the technical scheme that its technical problem adopts:
A kind of regeneration paper mill wastewater recycling and processing device, its structure comprises water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond and storage basin, described water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond are connected by pipeline successively with storage basin, described coagulation efficient air-floating pond water outlet is provided with clean water basin, and clean water basin water outlet is connected with slip house, described second pond and aeration settling pond are respectively equipped with sludge pipe, are connected with storage basin.
Described air supporting administration system comprises PAM dosing system and/or PAC dosing system.
Described coagulation efficient air-floating pond comprises cell body, water inlet pipe and rising pipe, and be provided with exposure chamber and separate chamber in described cell body, cell body top is provided with slag scraper; Air Bubble generating apparatus is provided with, the air supporting head that air Bubble generating apparatus is comprised electric motor and is connected with electric motor by quill shaft in described exposure chamber.As preferably, in the separate chamber of described coagulation efficient air-floating pond, be provided with the return line being communicated with exposure chamber.
Described aerated biological fludized bed unit adopts at least TSA biological fluidized bed to be composed in series, and aeration mode is blast aeration at the bottom of pond.
Further, described water collecting basin is connected with slanted screen by the pipeline being in series with sewage pump.
Further, described second pond is connected with storage basin by the sludge pipe being in series with sludge pump with aeration settling pond.
Further, described second pond is radical sedimentation basin.
Further, described slanted screen and/or coagulation efficient air-floating Chi Chu are provided with fibrous recovery unit, and fibrous recovery unit is connected with production plant.
Further, modification infusorial earth has been added in described aeration settling pond.
Further, described aeration settling pond water outlet is connected with sand filtering device and sand filter.
When the utility model regeneration paper mill wastewater recycling and processing device runs, comprise the steps:
1) first the regeneration paper mill wastewater that production plant produces comes together in water collecting basin, slanted screen is promoted to through sewage pump, by the barrier effect of slanted screen grid hole, be retained down by most of SS and recycle, SS mainly comprises screenings, the robust fibre that slip house runs off.
2) regeneration paper mill wastewater introduces coagulation efficient air-floating pond after slanted screen filtration treatment, waste water is mixed with PAC and PAM in air supporting administration system and produces flco, removes fiber fines, SS and partial solubility COD in waste water.
3) the 30-40% water outlet of top, coagulation efficient air-floating pond enters aerated biological fludized bed unit, and wherein 60-70% gravity flow imports clean water basin, and reuse is to slip house.After aerated biological fludized bed unit, non-solubility COD, NH in waste water
3-N and BOD
5the microbial film be attached on filler is decomposed into inorganic molecules.
4) water outlet of aerated biological fludized bed unit enters second pond, and by the sludge settling of generation at the bottom of pond, top clear water enters the aeration settling pond adding modification infusorial earth and does further process after precipitation.
5) aeration settling pond water outlet is connected with sand filtering device and sand filter, after sand filtration, be directly used in paper machine room water as reuse water, the mud of second pond and aeration settling pond by sludge pumping to storage basin, last mummification landfill.
Compared with prior art, the beneficial effect produced is regeneration paper mill wastewater recycling and processing device of the present utility model:
1, the utility model is reasonable in design, easy to use, can effectively reclaim regeneration paper mill wastewater, will drop to minimum to the pollution of environment, can avoid the secondary pollution of mud, improves the cycling and reutilization of water.
2, the utility model is by adding modification infusorial earth at aeration settling pond, further process is done to regeneration paper mill wastewater, the pollutent of SS and colloidal attitude can not only be removed, and there is efficient decoloring ability, on the basis of original sewage qualified discharge, reduce COD, BOD in water further
5, NH
3-N and SS content.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model regeneration paper mill wastewater recycling and processing device.
Accompanying drawing 2 is the structural representation in the utility model coagulation efficient air-floating pond.
In figure, 1, water collecting basin, 2, sewage pump, 3, slanted screen, 4, air supporting administration system, 5, coagulation efficient air-floating pond, 501, cell body, 502, water inlet pipe, 503, rising pipe, 504, exposure chamber, 505, separate chamber, 506, slag scraper, 507, electric motor, 508, quill shaft, 509, air supporting head, 510, return line, 6, aerated biological fludized bed unit, 601, aeration tube, 7, clean water basin, 8, second pond, 9, aeration settling pond, 10, modification infusorial earth, 11, sludge pump, 12, storage basin.
Embodiment
Below in conjunction with the drawings and specific embodiments, regeneration paper mill wastewater recycling and processing device of the present utility model is described in detail below.
Embodiment 1
As shown in accompanying drawing 1, accompanying drawing 2, regeneration paper mill wastewater recycling and processing device of the present utility model, its structure comprises water collecting basin 1, slanted screen 3, coagulation efficient air-floating pond 5, aerated biological fludized bed unit 6, second pond 8, aeration settling pond 9 and storage basin 12; Described water collecting basin 1, slanted screen 3, coagulation efficient air-floating pond 5, aerated biological fludized bed unit 6, second pond 8, aeration settling pond 9 are connected by pipeline successively with storage basin 12, described coagulation efficient air-floating pond 5 water outlet is provided with clean water basin 7, and clean water basin 7 water outlet is connected with slip house, described second pond 8 and aeration settling pond 9 are respectively equipped with sludge pipe, are connected with storage basin 12.
Described coagulation efficient air-floating pond 5 is connected with air supporting administration system 4, and described air supporting administration system 4 comprises PAM dosing system and/or PAC dosing system.
Described coagulation efficient air-floating pond 5 comprises cell body 501, water inlet pipe 502 and rising pipe 503, is provided with exposure chamber 504 and separate chamber 505 in described cell body 501, and cell body 501 top is provided with slag scraper 506; Be provided with air Bubble generating apparatus in described exposure chamber 504, air Bubble generating apparatus comprises electric motor 507 and the air supporting that is connected with electric motor 507 by quill shaft 508 509.Waste water enters the exposure chamber 504 being provided with air supporting 509 through water inlet pipe 502, electric motor 507 drives air supporting 509 acutely to rotate, and waste water is mixed with the gas floatation agent in air supporting administration system 4 and produces flco; While stirring, being rotated in of air supporting 509 produces negative pressure under water, forms a vacuum area, and under the effect of barometric point, the air in the external world is inhaled into by quill shaft 508, under the cutting of current, forms a large amount of micro bubbles; Adhere to the flco produced in the process that these bubbles rise at exposure chamber 504 internal screw and form gas-solid agglomerate, and enter separate chamber 505, due to gas-solid adhesion and fluid density difference and the buoyancy produced makes band gas SS floating to the water surface, be separated through separate chamber 505, scraped by slag scraper 506, the waste water after process is discharged by rising pipe.
Further, the return line 510 being communicated with exposure chamber 504 is provided with in described coagulation efficient air-floating pond 5 separate chamber 505, and return line is the suction function produced by air supporting 509 high speed rotating automatically carries out, without any need for other as pump etc. needs the equipment of consumption of power.The effect of return line 509 has two: one to be make to enter in air supporting process that separate chamber 505 but fails to become scum silica frost and the flco SS be sunken to bottom separate chamber 505 enters contact 504 Room again, realize repeatedly coagulation and repeatedly air supporting, to ensure the treatment effect of air-flotation system; Two is when the wastewater flow fed changes, and carries out suitable adjustment, ensures the stability of air-flotation system.
Described aerated biological fludized bed unit 6 adopts at least TSA biological fluidized bed to be composed in series, and every grade of pond height path difference is greater than 25 cm, and flow dynamic is from difference of elevation.Described aerated biological fludized bed pond is as right cylinder, and pond Bottom Shape is funnel-form, is provided with aeration tube 601 at the bottom of pond, and filler is macromolecular material bio-carrier, and aeration mode is blast aeration at the bottom of pond.Funnel like design at the bottom of pond makes the flow velocity of waste water, aeration increase, and is conducive to upgrading in time of biofilm surface attachment carrier, and carrier collides under driving mutually at aeration, waste water, aeration is cut into microbubble, adds oxygen utilization rate, reduce aeration rate.
Further, described water collecting basin 1 is connected with slanted screen 3 by the pipeline being in series with sewage pump 2.
Further, described second pond 8 is connected with storage basin 12 by the sludge pipe being in series with sludge pump 11 with aeration settling pond 9.
Further, described second pond 8 is radical sedimentation basin.
Further, described slanted screen 3 and/or coagulation efficient air-floating Chi5Chu are provided with fibrous recovery unit, reclaim screenings, robust fibre and fiber fines to production plant.
Further, in described aeration settling pond 9, add modification infusorial earth 10, further process can have been done to regeneration paper mill wastewater.When modification infusorial earth 10 is for sewage disposal, granularity and the larger flco of density can be formed fast, and the good stability of flco, even after flco is broken, also reflocculation can occur, this be the conventional sewage flocculants such as other aluminium salt, molysite incomparable.COD, BOD of waste water can be made after process
5, the index such as SS and colourity reaches new emission standard, effectively can solve the difficult problem that conventional processes cannot reach new standard emission request.
Further, described aeration settling pond 9 water outlet is connected with sand filtering device and sand filter, to obtain the high water outlet of clarity and to be back to production plant, realizes the recycle of water resources, can significantly reduce water of productive use amount.
The each workshop section of the utility model purifies liquid waste effluent quality and water quality standard in table 1.
table 1.the each workshop section of the utility model purifies liquid waste effluent quality table
As shown in Table 1, the utility model effluent quality is better than prior art, and reaches environmental emission standard.Waste water after the utility model purification can utilize by direct circulation, and slip house run off screenings, robust fibre, fiber fines also can reuse, achieve Resource Rationalization and utilize.
Except the technical characteristic described in specification sheets, be the known technology of those skilled in the art.
Claims (10)
1. a regeneration paper mill wastewater recycling and processing device, it is characterized in that, comprise water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond and storage basin, described water collecting basin, slanted screen, coagulation efficient air-floating pond, aerated biological fludized bed unit, second pond, aeration settling pond is connected by pipeline successively with storage basin, described coagulation efficient air-floating pond water outlet is provided with clean water basin, and clean water basin water outlet is connected with slip house, described second pond and aeration settling pond are respectively equipped with sludge pipe, be connected with storage basin.
2. regeneration paper mill wastewater recycling and processing device according to claim 1, is characterized in that, described coagulation efficient air-floating pond is connected with air supporting administration system, and described air supporting administration system comprises PAM dosing system and/or PAC dosing system.
3. regeneration paper mill wastewater recycling and processing device according to claim 1 and 2, is characterized in that, described coagulation efficient air-floating pond comprises cell body, water inlet pipe and rising pipe, and be provided with exposure chamber and separate chamber in described cell body, cell body top is provided with slag scraper; Air Bubble generating apparatus is provided with, the air supporting head that air Bubble generating apparatus is comprised electric motor and is connected with electric motor by quill shaft in described exposure chamber.
4. regeneration paper mill wastewater recycling and processing device according to claim 3, is characterized in that, is provided with the return line being communicated with exposure chamber in the separate chamber of described coagulation efficient air-floating pond.
5. regeneration paper mill wastewater recycling and processing device according to claim 3, is characterized in that, described aerated biological fludized bed unit adopts at least TSA biological fluidized bed to be composed in series, and aeration mode is blast aeration at the bottom of pond.
6. the regeneration paper mill wastewater recycling and processing device according to claim 1 or 2 or 4 or 5, it is characterized in that, described water collecting basin is connected with slanted screen by the pipeline being in series with sewage pump.
7. the regeneration paper mill wastewater recycling and processing device according to claim 1 or 2 or 4 or 5, it is characterized in that, described second pond is connected with storage basin by the sludge pipe being in series with sludge pump with aeration settling pond.
8. the regeneration paper mill wastewater recycling and processing device according to claim 1 or 2 or 4 or 5, is characterized in that, described slanted screen and/or coagulation efficient air-floating Chi Chu are provided with fibrous recovery unit.
9. the regeneration paper mill wastewater recycling and processing device according to claim 1 or 2 or 4 or 5, is characterized in that, added modification infusorial earth in described aeration settling pond.
10. the regeneration paper mill wastewater recycling and processing device according to claim 1 or 2 or 4 or 5, is characterized in that, described aeration settling pond water outlet is connected with sand filtering device and sand filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550602.XU CN204079711U (en) | 2014-09-24 | 2014-09-24 | A kind of regeneration paper mill wastewater recycling and processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550602.XU CN204079711U (en) | 2014-09-24 | 2014-09-24 | A kind of regeneration paper mill wastewater recycling and processing device |
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| Publication Number | Publication Date |
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| CN204079711U true CN204079711U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420550602.XU Expired - Fee Related CN204079711U (en) | 2014-09-24 | 2014-09-24 | A kind of regeneration paper mill wastewater recycling and processing device |
Country Status (1)
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| CN (1) | CN204079711U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692593A (en) * | 2015-02-28 | 2015-06-10 | 江苏高科物流科技股份有限公司 | Treatment method applied to industrial wastewater |
| CN106091449A (en) * | 2016-06-20 | 2016-11-09 | 许昌中亚工业智能装备股份有限公司 | A kind of heat recovery system of paper machine |
| CN107758979A (en) * | 2016-08-16 | 2018-03-06 | 贵阳时代沃顿科技有限公司 | A kind of woodwork processing wastewater treatment method and processing unit |
| CN112647561A (en) * | 2020-10-30 | 2021-04-13 | 上海市政工程设计研究总院（集团）有限公司 | Circulation processing system of sludge drying carrier gas comdenstion water |
-
2014
- 2014-09-24 CN CN201420550602.XU patent/CN204079711U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692593A (en) * | 2015-02-28 | 2015-06-10 | 江苏高科物流科技股份有限公司 | Treatment method applied to industrial wastewater |
| CN106091449A (en) * | 2016-06-20 | 2016-11-09 | 许昌中亚工业智能装备股份有限公司 | A kind of heat recovery system of paper machine |
| CN106091449B (en) * | 2016-06-20 | 2018-08-31 | 许昌中亚工业智能装备股份有限公司 | A kind of heat recovery system of paper machine |
| CN107758979A (en) * | 2016-08-16 | 2018-03-06 | 贵阳时代沃顿科技有限公司 | A kind of woodwork processing wastewater treatment method and processing unit |
| CN112647561A (en) * | 2020-10-30 | 2021-04-13 | 上海市政工程设计研究总院（集团）有限公司 | Circulation processing system of sludge drying carrier gas comdenstion water |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20180924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |