CN201292299Y - Water treatment system with postpositive denitrification process - Google Patents
Water treatment system with postpositive denitrification process Download PDFInfo
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- CN201292299Y CN201292299Y CNU2008201224851U CN200820122485U CN201292299Y CN 201292299 Y CN201292299 Y CN 201292299Y CN U2008201224851 U CNU2008201224851 U CN U2008201224851U CN 200820122485 U CN200820122485 U CN 200820122485U CN 201292299 Y CN201292299 Y CN 201292299Y
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Abstract
The utility model relates to a water treatment system with a subsequent denitrification process, belonging to the technical field of sewage treatment. The water treatment system comprises a grating, a preliminary sedimentation tank, a conventional biological reaction tank, a secondary sedimentation tank and a denitrification biological filter tank, wherein an inlet of the grating is connected with a water inlet, and an outlet of the grating is connected with an inlet of the preliminary sedimentation tank; an outlet of the preliminary sedimentation tank is connected with an inlet of the conventional biological reaction tank, an outlet of the conventional biological reaction tank is connected with an inlet of the secondary sedimentation tank which is provided with two outlets respectively connected with the conventional biological reaction tank and the denitrification biological filter tank, and an outlet of the denitrification biological filter tank is used as a water outlet. The water treatment system has the advantages that total nitrogen is controlled by strengthening treatment at a denitrification stage so as to further decrease an index of suspended substances in produced water, improve the quality of the produced water, improve the removal of ammonium nitrogen and total nitrogen, suitably lower a reflux ratio and improve the treatment capability of the whole technology.
Description
Technical field
The utility model relates to a kind of water treatment system with rearmounted denitrification process, belongs to technical field of sewage.
Background technology
Though country is in the protection of constantly emphasizing water resources, and payes attention to further to sewage disposal technology, present water environment pollution problem is still serious.So more and more higher for the effluent of municipal sewage plant requirement, areas such as present Taihu Lake have begun mandatory requirement and have carried out one-level A standard.In the sewage effluents index, difficulty reaches high-level total phosphorus and the total nitrogen of mainly containing.At present, it mainly is that enhanced biological is removed or the interpolation chemical agent that the reinforcement of total phosphorus is removed, and the total phosphorus index can be controlled to a certain extent.Can raise the cost though add chemical agent, require the comparatively strict area of effluent index, chemical enhanced dephosphorization is a kind of simple and effective control mode.The removal mechanism of total nitrogen then is mainly biological denitrificaion, be difficult to find a simple effective method to control the water outlet total nitrogen, can only control by adjusting process parameter and running status, so cause the total nitrogen index to influence the implementation of one-level A standard in Sewage Plant to a great extent.
At present, great majority are because total nitrogen index operation conditions is bad, and can not the reason that maybe can't be upgraded to one-level A standard up to standard mainly contain following some:
1, total system does not have denitrification functions;
2, in the system denitrification functions is arranged, but the water-inlet carbon source deficiency;
3, in the system denitrification functions is arranged, but the total nitrogen of intaking is higher, because the restriction water outlet total nitrogen of reflux ratio is higher than requirement;
4, system is a synchronous nitration and denitrification, has certain influence each other.
The problematic Sewage Plant of water outlet total nitrogen in the actual at present operation, its water outlet total nitrogen is slightly higher than standard.
Summary of the invention
The purpose of this utility model is to propose a kind of water treatment system with rearmounted denitrification process, behind traditional biological denitrification process second pond, add denitrification bio-filter, the second pond water outlet is all or part of by this denitrification bio-filter, and denitrification bio-filter added carbon source separately, further reduce the nitric nitrogen in the former water outlet, to reach the requirement of strengthened denitrification.
The water treatment system that the utility model proposes with rearmounted denitrification process, comprise grid, preliminary sedimentation tank, conventional biological reaction tank, second pond and denitrification bio-filter, the import of described grid links to each other with water inlet, the outlet of grid links to each other with the import of preliminary sedimentation tank, the outlet of preliminary sedimentation tank links to each other with the import of conventional biological reaction tank, the outlet of conventional biological reaction tank links to each other with the import of second pond, second pond is provided with two outlets, link to each other with denitrification bio-filter with conventional biological reaction tank respectively, the outlet of denitrification bio-filter is a water out.
The utility model relates to the water treatment system with rearmounted denitrification process of proposition, and its advantage is:
1, fundamentally solve the removal of total nitrogen: traditional waste water treatment process mostly is aerobic process, so most ammonia-nitrogen all is oxidized to nitric nitrogen in treating processes, the denitrification stage is being limited the quality of effluent index usually.The Sewage treatment systems that the utility model proposes, the processing by the intensified anti-nitrated stage reaches the control to total nitrogen, has fundamentally solved the problem of total nitrogen.
2, reduce and water suspension: in the Sewage treatment systems of the present utility model, denitrification bio-filter can further reduce the indicator of suspended solids in the water outlet, improves effluent characteristics.
3, the transformation of existing sewage treatment process is based on dephosphorization, nitration reaction, Sewage treatment systems of the present utility model is by adding the rear-mounted denitrification biological filter, can alleviate the pressure of denitrification section in the protista technology preferably, can the operating mode of nitrated section of readjust and anaerobism dephosphorization section, make the entire sewage treatment scheme all reach operation conditions preferably.
4, improve original art breading ability: by adding the rear-mounted denitrification biological filter, improve removal, reflux ratio can suitably be reduced, make the processing power of whole technology be improved to nitre nitrogen and total nitrogen.
5, according to influent quality flexible configuration denitrification bio-filter treatment capacity: this Sewage treatment systems can be adjusted the second pond aquifer yield that enters denitrification bio-filter flexibly according to influent quality.When the water inlet total nitrogen is loaded when high, the water that can whole two settles out enters denitrification bio-filter, guarantees effluent quality; When water inlet total nitrogen load is low, the water yield that can enter denitrification bio-filter according to the treatment effect adjustment in aerobe pond.
Description of drawings
Fig. 1 is the synoptic diagram of the water treatment system with rearmounted denitrification process that the utility model proposes.
Embodiment
The water treatment system that the utility model proposes with rearmounted denitrification process, its structure as shown in Figure 1, comprise grid, preliminary sedimentation tank, conventional biological reaction tank, second pond and denitrification bio-filter, the import of described grid links to each other with water inlet, the outlet of grid links to each other with the import of preliminary sedimentation tank, the outlet of preliminary sedimentation tank links to each other with the import of conventional biological reaction tank, the outlet of conventional biological reaction tank links to each other with the import of second pond, second pond is provided with two outlets, link to each other with denitrification bio-filter with conventional biological reaction tank respectively, the outlet of denitrification bio-filter is a water out.
In the water treatment system of the present utility model, bad or be difficult to be upgraded to the present situation of higher standard at traditional denitrification process denitrification effect, denitrification bio-filter is set behind second pond, and denitrification bio-filter added carbon source separately, to remove the nitre nitrogen in the second pond water outlet, make last water outlet reach requirement.Native system can be widely used in existing various aerobe treatment facility.
Denitrification bio-filter in this water treatment system can be fixed biologically membrane reactors such as biological filter, perhaps is denitrification membrane reactor (DNMBR).To wherein adding carbon source, be generally methyl alcohol etc., perhaps be the Sewage Plant water inlet.
After denitrification bio-filter in this water treatment system was arranged on second pond, all or part of denitrification pond that enters of second pond water outlet was through handling direct water outlet.Directly use the second pond water outlet as the water source during back flushing, sewage directly enters conventional biological reaction tank (shown in the dotted line among Fig. 1) after the back flushing.
In this water treatment system conventional biological reaction tank can be anaerobism anoxic Aerobic Pond.
Claims (1)
1, a kind of water treatment system with rearmounted denitrification process, it is characterized in that, this water treatment system comprises grid, preliminary sedimentation tank, conventional biological reaction tank, second pond and denitrification bio-filter, the import of described grid links to each other with water inlet, the outlet of grid links to each other with the import of preliminary sedimentation tank, the outlet of preliminary sedimentation tank links to each other with the import of conventional biological reaction tank, the outlet of conventional biological reaction tank links to each other with the import of second pond, second pond is provided with two outlets, link to each other with denitrification bio-filter with conventional biological reaction tank respectively, the outlet of denitrification bio-filter is a water out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201224851U CN201292299Y (en) | 2008-09-12 | 2008-09-12 | Water treatment system with postpositive denitrification process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201224851U CN201292299Y (en) | 2008-09-12 | 2008-09-12 | Water treatment system with postpositive denitrification process |
Publications (1)
| Publication Number | Publication Date |
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| CN201292299Y true CN201292299Y (en) | 2009-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201224851U Expired - Lifetime CN201292299Y (en) | 2008-09-12 | 2008-09-12 | Water treatment system with postpositive denitrification process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880114A (en) * | 2010-07-21 | 2010-11-10 | 宇星科技发展(深圳)有限公司 | Rear-mounted denitrification phosphorus and nitrogen removal system and process |
| CN102923915A (en) * | 2012-11-15 | 2013-02-13 | 罗文兵 | Method and system for treating domestic sewage in rural areas |
| CN105776758A (en) * | 2016-04-20 | 2016-07-20 | 安徽国祯环保节能科技股份有限公司 | Improved SBR wastewater treatment process for obtaining standard IV-class surface water |
| CN107416978A (en) * | 2017-09-22 | 2017-12-01 | 深圳市澳洁源环保科技有限公司 | Sewage-treatment plant |
-
2008
- 2008-09-12 CN CNU2008201224851U patent/CN201292299Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880114A (en) * | 2010-07-21 | 2010-11-10 | 宇星科技发展(深圳)有限公司 | Rear-mounted denitrification phosphorus and nitrogen removal system and process |
| CN101880114B (en) * | 2010-07-21 | 2012-07-25 | 宇星科技发展(深圳)有限公司 | Rear-mounted denitrification phosphorus and nitrogen removal system and process |
| CN102923915A (en) * | 2012-11-15 | 2013-02-13 | 罗文兵 | Method and system for treating domestic sewage in rural areas |
| CN105776758A (en) * | 2016-04-20 | 2016-07-20 | 安徽国祯环保节能科技股份有限公司 | Improved SBR wastewater treatment process for obtaining standard IV-class surface water |
| CN105776758B (en) * | 2016-04-20 | 2018-09-28 | 安徽国祯环保节能科技股份有限公司 | A kind of Modified SBR sewage treatment process of IV class of surface water up to standard |
| CN107416978A (en) * | 2017-09-22 | 2017-12-01 | 深圳市澳洁源环保科技有限公司 | Sewage-treatment plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GENERAL WATER OF CHINA INVESTMENT CO., LTD. Free format text: FORMER OWNER: WANG BAOCHEN Effective date: 20091127 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091127 Address after: A, general international center, No. 3, East 28, east gate, Chaoyang District, Beijing, Yongan, China: 100022 Patentee after: General Water of China Co., Ltd. Address before: No. 14, building 1, gate 50, Chaoyang North Road, Beijing, Chaoyang District 605, postcode: 100024 Patentee before: Wang Baochen |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |