CN101973636A - Distributed water inflow enhanced biological denitrification subsurface flow wetland - Google Patents
Distributed water inflow enhanced biological denitrification subsurface flow wetland Download PDFInfo
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- CN101973636A CN101973636A CN2010102911148A CN201010291114A CN101973636A CN 101973636 A CN101973636 A CN 101973636A CN 2010102911148 A CN2010102911148 A CN 2010102911148A CN 201010291114 A CN201010291114 A CN 201010291114A CN 101973636 A CN101973636 A CN 101973636A
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- wetland
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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 distributed water inflow enhanced biological denitrification subsurface flow wetland, which comprises a water distributing well, a wetland main body, a vermiculite packing layer, a melting furnace slag packing layer, a soil packing layer, a water storage chamber, water distribution pipes and aquatic plants, wherein partition walls are arranged in the wetland main body to divide the wetland into a front section wetland and a back section wetland; 80 percent of inflow water passes through the water storage chamber and enters the front section wetland in a horizontal flow mode, and the other 20 percent of the inflow water enters the back section wetland uniformly through the water distribution pipes in a vertical flow mode to ensure that part of the inflow water directly enters the back part of the wetland, thereby meeting a carbon source requirement of a denitrification zone and improving the total nitrogen removal capacity of the process.
Description
One, technical field: the present invention relates to a kind of distributed water inlet enhanced biological denitrogenation current wetland, belong to the sewage purification field.
Two, technical background:
Artificial swamp is matrix, waterplant and the microorganism that utilizes in the wetland, reaches the purpose of purifying waste water by a series of physics, chemistry and biological approach.This system has that initial cost is few, working cost is low, maintenance and management is simple relatively, high treating effect, can remove COD, SS and TP effectively.But present horizontal flow, vertical current or the combined-flow subsurface flow wetland system that adopts, the carbon source in its water inlet is mostly in nitrification zone consumption, and the carbon source of being advanced in the water influences, and the denitrification efficient of wetland denitrification zone is lower, and the removal effect of TN is poor.
The present invention is directed to the problems referred to above, propose a kind of distributed water inlet enhanced biological denitrogenation current wetland, principal feature is to utilize distributed water inlet, makes the part water inlet directly enter the wetland rear section, to satisfy the carbon source demand of denitrification zone, improve the total nitrogen of technology and remove ability.
Three, summary of the invention:
A kind of distributed water inlet enhanced biological denitrogenation current wetland of the present invention, comprise between distributing well, wetland main body, vermiculite packing layer, stove slag packing layer, soil packing layer, water storage, water distributor, waterplant, be provided with partition wall in the wetland main body, wetland is divided into leading portion wetland and back segment wetland, 80% part in the water inlet enters the leading portion wetland in the horizontal flow mode through between water storage, other 20% part water inlet evenly enters the back segment wetland by water distributor in the vertical current mode.Described water distribution pipe is made of main pipe line and small transfer line, and small transfer line is arranged in the upper face of back segment wetland.
The following technical scheme of concrete employing:
A partition wall is established in the centre of wetland main body, forms leading portion wetland and back segment wetland that top is communicated with.The wetland main body is outer to be masonry structure, and internal layer is a concrete structure, and handle through antiseepage the bottom; Wetland body interior one side is provided with the two sides body of wall, and the two constitutes tank, and in the bottom of inner body of wall the water inlet perforated wall is set, and makes that into water is even, reduces the impact of water inlet to the wetland layer.Waste water at first distributes through water pump lifting to distributing well, wherein 80% part is fallen between water storage with the drop that exceeds body of wall top H=0.3～0.5m between water storage, the amount of the dissolved oxygen in the water is into increased, help organic decomposition, the water inlet perforated wall of water inlet bottom through between water storage enters the leading portion wetland.In the leading portion wetland, mainly carry out organic Decomposition, consume the dissolved oxygen in the water inlet.
When the water inlet of present segment wetland covers partition wall and enters the back segment wetland, and advance to mix by 20% water inlet of water distributor input in addition.At the back segment wetland, mainly carry out the place to go technology of ammonia nitrogen.Wherein provide carbon source by 20% water inlet, very low from the effusive waste water dissolved oxygen content of leading portion wetland simultaneously, after 20% water inlet mixes, satisfy nitrated and anoxic condition nitrite bacteria.Along with the current direction current downflow, dissolved oxygen constantly descends, and carries out denitrification gradually, because the water inlet of 20% part contains competent organism, enriches carbon source for denitrification provides, the carrying out of satisfying denitrification, the removal efficient of assurance ammonia nitrogen.Last water outlet flows into next tank by the bottom perforated wall, from tank discharge suitable for reading.
Wet land filler among the present invention is vermiculite packing layer, stove slag packing layer, soil packing layer from bottom to top successively.The soil that soil adds the bed of material mixes with rural area soil and the ratio of plant ash by quality at 5: 4, is beneficial to the growth of plant.
Stove slag packing layer can select for use waste and old fishing net etc. with the filler parcel, becomes block unit, has both helped biological attachment, and packing layer stability is improved.
The present invention has the following advantages:
The present invention adopts distributed water inlet, has solved the insufficient problem of traditional wetland denitrification carbon source, improves and denitrogenates efficient.Distributed water inlet make wet land system handle load be divided into before and after two portions, having changed traditional wetland fore portion, to handle load big, the difficult problem that the mud generation is many has reduced localised load, reduces mud at partial generation, the difficult obstruction.The present invention is provided with between water storage in the front-end and back-end of wetland, makes the water inlet of wetland and water outlet more stable, is beneficial to the steady running of wet land system.
Four, description of drawings
Fig. 11 is the wetland main body wherein for the structural profile synoptic diagram of wetland of the present invention, and 2 is between water storage, and 3 is perforated wall, and 4 is the soil packing layer, and 5 is stove slag packing layer, and 6 is the vermiculite packing layer, and 7 is water distributor
Five, embodiment
Waste water at first through water pump lifting to distributing well, be divided into two portions in 8: 2 ratios, wherein 80% water inlet is fallen between water storage with the drop that exceeds body of wall top H=0.3～0.5m between water storage, the amount of the dissolved oxygen in the water is into increased, be beneficial to organic decomposition, the water inlet perforated wall of water inlet bottom through between water storage enters the leading portion wetland.In the leading portion wetland, mainly carry out organic Decomposition, consume the dissolved oxygen in the water inlet.
When the water inlet of present segment wetland covers partition wall and enters the back segment wetland, and advance to mix by 20% water inlet of water distributor input in addition.At the back segment wetland, mainly carry out the place to go technology of ammonia nitrogen.Wherein provide carbon source by 20% water inlet, very low from the effusive waste water dissolved oxygen content of leading portion wetland simultaneously, after 20% water inlet mixes, satisfy nitrated and anoxic condition nitrite bacteria.Along with the current direction current downflow, dissolved oxygen constantly descends, and carries out denitrification gradually, because the water inlet of 20% part contains competent organism, enriches carbon source for denitrification provides simultaneously, the carrying out of satisfying denitrification, the removal efficient of assurance ammonia nitrogen.Last water outlet flows into next tank by the bottom perforated wall, from tank discharge suitable for reading.
Claims (2)
1. distributed water inlet enhanced biological denitrogenation current wetland, comprise between distributing well, wetland main body, vermiculite packing layer, stove slag packing layer, soil packing layer, water storage, water distributor, waterplant, it is characterized in that being provided with partition wall in the wetland main body, wetland is divided into leading portion wetland and back segment wetland, 80% part in the water inlet enters the leading portion wetland in the horizontal flow mode through between water storage, other 20% part water inlet evenly enters the back segment wetland by water distributor in the vertical current mode.
2. a kind of distributed water inlet enhanced biological denitrogenation current wetland according to claim 1 is characterized in that described water distribution pipe is made of main pipe line and small transfer line, and small transfer line is arranged in the upper face of back segment wetland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102911148A CN101973636A (en) | 2010-09-26 | 2010-09-26 | Distributed water inflow enhanced biological denitrification subsurface flow wetland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102911148A CN101973636A (en) | 2010-09-26 | 2010-09-26 | Distributed water inflow enhanced biological denitrification subsurface flow wetland |
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| CN101973636A true CN101973636A (en) | 2011-02-16 |
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| CN2010102911148A Pending CN101973636A (en) | 2010-09-26 | 2010-09-26 | Distributed water inflow enhanced biological denitrification subsurface flow wetland |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139957A (en) * | 2011-02-23 | 2011-08-03 | 山东大学 | Operation mode capable of efficiently and intensively denitrifying on vertical flow constructed wetland |
| CN102689988A (en) * | 2012-04-27 | 2012-09-26 | 湖北理工学院 | Carbon-oxygen combined regulatory denitrification system for horizontal underflow constructed wetlands |
| CN102786144A (en) * | 2011-05-20 | 2012-11-21 | 天津城市建设学院 | Method for construction of garden filter tank sewage treatment facility |
| CN107416980A (en) * | 2017-04-24 | 2017-12-01 | 海绵城市投资股份有限公司 | A kind of Artificial subsurface flow wetland sewage disposal device and its sewage water treatment method |
| CN108249580A (en) * | 2018-03-09 | 2018-07-06 | 江苏省环境科学研究院 | A kind of control system and method for artificial swamp automatic feeding water mode |
| CN111056640A (en) * | 2019-12-17 | 2020-04-24 | 深圳市碧园环保技术有限公司 | Constructed wetland structure suitable for cold areas |
| CN112811733A (en) * | 2021-01-08 | 2021-05-18 | 罗洪湖 | Livestock breeding sewage treatment device and method |
Citations (5)
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| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| CN1475448A (en) * | 2003-07-31 | 2004-02-18 | 清华大学 | Fortified artificial wetlan sewage disposal method and system |
| CN100998883A (en) * | 2006-01-12 | 2007-07-18 | 香港理工大学 | System for treating odour compound in dirty air and its method |
| CN101560784A (en) * | 2009-05-25 | 2009-10-21 | 南京大学 | Regulating reservoir of drinking water source water |
| CN201538713U (en) * | 2009-11-06 | 2010-08-04 | 山东大学 | Quasi subsurface-flow constructed wetland |
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2010
- 2010-09-26 CN CN2010102911148A patent/CN101973636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| CN1475448A (en) * | 2003-07-31 | 2004-02-18 | 清华大学 | Fortified artificial wetlan sewage disposal method and system |
| CN100998883A (en) * | 2006-01-12 | 2007-07-18 | 香港理工大学 | System for treating odour compound in dirty air and its method |
| CN101560784A (en) * | 2009-05-25 | 2009-10-21 | 南京大学 | Regulating reservoir of drinking water source water |
| CN201538713U (en) * | 2009-11-06 | 2010-08-04 | 山东大学 | Quasi subsurface-flow constructed wetland |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139957A (en) * | 2011-02-23 | 2011-08-03 | 山东大学 | Operation mode capable of efficiently and intensively denitrifying on vertical flow constructed wetland |
| CN102139957B (en) * | 2011-02-23 | 2012-11-07 | 山东大学 | Operation mode capable of efficiently and intensively denitrifying on vertical flow constructed wetland |
| CN102786144A (en) * | 2011-05-20 | 2012-11-21 | 天津城市建设学院 | Method for construction of garden filter tank sewage treatment facility |
| CN102786144B (en) * | 2011-05-20 | 2013-12-11 | 天津城建大学 | Method for construction of garden filter tank sewage treatment facility |
| CN102689988A (en) * | 2012-04-27 | 2012-09-26 | 湖北理工学院 | Carbon-oxygen combined regulatory denitrification system for horizontal underflow constructed wetlands |
| CN107416980A (en) * | 2017-04-24 | 2017-12-01 | 海绵城市投资股份有限公司 | A kind of Artificial subsurface flow wetland sewage disposal device and its sewage water treatment method |
| CN108249580A (en) * | 2018-03-09 | 2018-07-06 | 江苏省环境科学研究院 | A kind of control system and method for artificial swamp automatic feeding water mode |
| CN108249580B (en) * | 2018-03-09 | 2023-11-24 | 江苏省环境科学研究院 | Control system and method for automatic water inlet mode of constructed wetland |
| CN111056640A (en) * | 2019-12-17 | 2020-04-24 | 深圳市碧园环保技术有限公司 | Constructed wetland structure suitable for cold areas |
| CN112811733A (en) * | 2021-01-08 | 2021-05-18 | 罗洪湖 | Livestock breeding sewage treatment device and method |
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Open date: 20110216 |