CN101560043B - Papermaking wastewater treatment device - Google Patents
Papermaking wastewater treatment device Download PDFInfo
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- CN101560043B CN101560043B CN2009101066378A CN200910106637A CN101560043B CN 101560043 B CN101560043 B CN 101560043B CN 2009101066378 A CN2009101066378 A CN 2009101066378A CN 200910106637 A CN200910106637 A CN 200910106637A CN 101560043 B CN101560043 B CN 101560043B
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- papermaking wastewater
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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 discloses a papermaking wastewater treatment device. The device comprises a grid, a preliminary sedimentation tank, an adjusting tank, an aeration biological filter, an A/O tank and a secondary sedimentation tank which are connected through pipelines in sequence. The papermaking wastewater is pretreated and then is treated by the aeration biological filter and the A/O tank, the quality of the yielding water after treatment can be greatly improved to achieve the water quality standard of the reused, so that the water can be reused, the recirculation of the water after treatment can be realized and the waste of the water resources is reduced.
Description
Technical field
The present invention relates to technical field of waste water processing, refer in particular to a kind of papermaking wastewater treatment device.
Background technology
The waste water that paper industry produced is one of main industrial pollution source, and characteristics such as waste water complicated component, bio-degradable property are low, organic pollutant content height that it has belong to more unmanageable trade effluent.To the characteristics of paper waste, people develop various dissimilar devices to be used for the purifying treatment of waste water, and a kind of common papermaking wastewater treatment device is as shown in Figure 1; It is formed by the preliminary sedimentation tank that is provided with grid 11 13, equalizing tank 15, A/O pond 17, second pond 19 and discharging pond 21 order pipe connection, and the paper waste that is produced gets into the impurity that preliminary sedimentation tank 13 depositions are removed larger particles after tackling suspended substances such as barks, paper pulp fiber through grid 11, subsequently; Flowing into the equilibrium of carrying out the water yield and water quality in the equalizing tank 15 regulates; Paper waste after the adjusting flows into A/O pond 17 and carries out denitrogenation dephosphorizing, removes treatment of organic matters of organic, and then, treat effluent gets into second pond 19 and precipitates and make mud-water separation; Wherein, Supernatant flows into discharging pond 21 and discharges, and sludge part is back to A/O pond 17, and remainder is then transported outward disposal.Above-mentioned existing papermaking wastewater treatment device; It is used for technological process of treating papermaking; After handling water outlet (being supernatant) though water quality can reach the requirement of general discharge water, be difficult to reach the water quality standard of general reuse water, can only be with its direct discharging; And fail reuse in addition, cause the waste of water resources.So having needs to improve existing papermaking wastewater treatment device, to improve the water quality that it handles the back water outlet.
Summary of the invention
The objective of the invention is to overcome the existing defective of common paper waste device, provide a kind of and can effectively improve the papermaking wastewater treatment device of handling the back effluent quality.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of papermaking wastewater treatment device; Include a grid, a preliminary sedimentation tank, an equalizing tank, a BAF, an A/O pond and a second pond, connect in order through pipeline between above-mentioned each integral part.
In the above-mentioned papermaking wastewater treatment device, said papermaking wastewater treatment device also includes a sand filter, and the water-in pipe connection of said sand filter is in the water outlet of said second pond, and water outlet then pipe connection is gone into clean water basin.
In the above-mentioned papermaking wastewater treatment device, said sand filter is provided with a back-purge system.
In the above-mentioned papermaking wastewater treatment device, said BAF flows to BAF on being.
In the above-mentioned papermaking wastewater treatment device, said preliminary sedimentation tank is an inclined-plate clarifying basin.
Beneficial effect of the present invention is: this papermaking wastewater treatment device is provided with BAF and A/O pond; Be used for paper waste is handled; Can increase substantially the water quality of handling the back water outlet; Make its water quality standard that reaches reuse water and in addition reuse, realize handling the recycle of back water outlet, reduce the waste of water resources.
Description of drawings
Fig. 1 is the structural representation of common papermaking wastewater treatment device.
Fig. 2 is the structural representation of papermaking wastewater treatment device of the present invention.
Embodiment
For making those of ordinary skill in the art be expressly understood the object of the invention, technical scheme and advantage more, the present invention is done further elaboration below in conjunction with accompanying drawing and embodiment.
With reference to shown in Figure 2; It is structural representation of the present invention; This papermaking wastewater treatment device includes a grid 10, a preliminary sedimentation tank 12, an equalizing tank 14, a BAF 16, an A/O pond 18, a second pond 20, a sand filter 22 and clean water basin 24, passes through pipe connection between above-mentioned each integral part.
In order to improve the whole structure of wastewater treatment, and guarantee the steady running of entire treatment device, paper waste at first need pass through the pre-treatment of grid 10, preliminary sedimentation tank 12 and equalizing tank 14.The waste water that paper machine room produced, flows in the preliminary sedimentation tank 12 wherein such as big suspended substance such as bark, wood chip, paper pulp fiber through grid 10 interceptions then, and the body refuse of being tackled then can drain into the mud thickner, and outward transport is disposed after its dehydration compression.Waste water precipitates in preliminary sedimentation tank 12 and removes part macrobead pollutent and portion C OD, and its water outlet flows into equalizing tank 14, and the body refuse that is settled out is then handled by the mud compressor and outward transport is disposed.Preferably, preliminary sedimentation tank 12 adopts inclined-plate clarifying basin, and it has, and sedimentation effect is good, the residence time short, take up an area of advantages such as few.
The water-in pipe connection of equalizing tank 14 gets into equalizing tank 14 in the water outlet of preliminary sedimentation tank 12 through the paper waste after preliminary sedimentation tank 12 precipitation process, carries out the adjusting of the water yield and water quality, to satisfy the design requirements of BAF 16.
The water-in pipe connection of BAF 16 is in equalizing tank 14, and water outlet then pipe connection is gone into A/O pond 18.Paper waste after equalizing tank 14 is regulated water quality; Handle among squeezing into BAF 16 through water pump; Remove wherein colloidal pollutent, SS, COD, BOD etc.; Its water outlet gets into A/O pond 18 and is for further processing, and the body refuse that produces then drains into the mud thickner, and outward transport is disposed after the dehydration compression.Preferably, BAF 16 adopts UBAFs, than under flow to BAF, its have receive dirty efficient high, be difficult for stopping up, advantage that the cycle of operation is long.
18 pairs in A/O pond comes from the paper waste of BAF 16 makes further denitrogenation dephosphorizing, removes treatment of organic matters of organic, and the back flows into second pond 20 and carries out mud-water separation.Supernatant in the second pond 20 flows into sand filter 22 through pipeline, and the mud that deposition produces, the A that is partly refluxed to A/O pond 18 holds, and remainder is then transported outward disposal.
Handle with the 18 pairs of paper wastes in A/O pond through BAF 16 is set, can increase substantially the water quality of handling the back water outlet, make its water quality standard that reaches reuse water and in addition reuse, realize handling the recycle of back water outlet, reduce the waste of water resources.
The water-in pipe connection of sand filter 22 is in the water outlet of second pond 20; Water outlet then pipe connection is gone into clean water basin 24; It filters the supernatant that comes from second pond 20, further removes impurity contained in the supernatant, after enter in the clean water basin 24 and store for future use.The setting of sand filter 22 can further improve the water quality of handling the back water outlet.Preferably, sand filter 22 is provided with a back-purge system, is used for sand filter 22 is washed and recovers the wherein filtering function of filtrate.
Above-mentionedly be merely preferred embodiment of the present invention, but not any pro forma restriction is done in invention, all equivalent variations or modifications of in the claim scope, being done all should fall within the protection domain of the present invention.
Claims (4)
1. papermaking wastewater treatment device; Include pipe connection one grid (10), a preliminary sedimentation tank (12), an equalizing tank (14), an A/O pond (18) and a second pond (20) in order; It is characterized in that: be provided with a BAF (16) between said equalizing tank (14) and A/O pond (18); The water-in pipe connection of said BAF is in the water outlet of said equalizing tank (14), its water outlet then pipe connection in the water-in in said A/O pond (18); Said papermaking wastewater treatment device also includes a sand filter (22), and the water-in pipe connection of said sand filter (22) is in the water outlet of said second pond (20), and water outlet then pipe connection is gone into clean water basin (24).
2. papermaking wastewater treatment device as claimed in claim 1 is characterized in that: said sand filter (22) is provided with a back-purge system.
3. according to claim 1 or claim 2 papermaking wastewater treatment device is characterized in that: said BAF (16) on flow to BAF.
4. according to claim 1 or claim 2 papermaking wastewater treatment device, it is characterized in that: said preliminary sedimentation tank (12) is an inclined-plate clarifying basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101066378A CN101560043B (en) | 2009-04-09 | 2009-04-09 | Papermaking wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101066378A CN101560043B (en) | 2009-04-09 | 2009-04-09 | Papermaking wastewater treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101560043A CN101560043A (en) | 2009-10-21 |
| CN101560043B true CN101560043B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101066378A Active CN101560043B (en) | 2009-04-09 | 2009-04-09 | Papermaking wastewater treatment device |
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| CN (1) | CN101560043B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674620A (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 strengthening treatment process for high organic matter and metal micro-polluted raw water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931749A (en) * | 2006-09-27 | 2007-03-21 | 山东贵和显星纸业股份有限公司 | Paper-making effluent purifying treatment process |
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2009
- 2009-04-09 CN CN2009101066378A patent/CN101560043B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931749A (en) * | 2006-09-27 | 2007-03-21 | 山东贵和显星纸业股份有限公司 | Paper-making effluent purifying treatment process |
Non-Patent Citations (1)
| Title |
|---|
| 王中刚.处理城市污水的A/O工艺.《小氮肥》.2008,第36卷(第8期),12-14. * |
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| CN101560043A (en) | 2009-10-21 |
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