CN100569665C - A kind of artificial wet land water treatment technology - Google Patents
A kind of artificial wet land water treatment technology Download PDFInfo
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- CN100569665C CN100569665C CNB2007100663118A CN200710066311A CN100569665C CN 100569665 C CN100569665 C CN 100569665C CN B2007100663118 A CNB2007100663118 A CN B2007100663118A CN 200710066311 A CN200710066311 A CN 200710066311A CN 100569665 C CN100569665 C CN 100569665C
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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
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Abstract
The invention discloses a kind of artificial wet land water treatment technology, especially low organic wastewater treatment process of storm runoff or lower concentration difficult degradation and C/N.This process using circulation artificial swamp, promptly wetland adopts two or more sets parallel forms, and every group by the annular series connection of four canals, and the wetland feed-water end is established biological zone of action, and the microbial film on the zone of action filler moves according to anoxic-aerobic process; The wetland outside two channels are reserved open water, add pusher under water; Establish the air-water backwashing system at the wetland feed-water end.Filler is divided into the perforation gas distribution pipe; Settling pit and circulation wetland are used.The artificial wet land water treatment technology of the present invention can effectively be removed nitrogenous substancess such as hardly degraded organic substance matter in little source of pollution water and ammonia nitrogen, organonitrogen, improves the conventional water treatment process operating performance, strengthens water security.Meet or exceed surface water III class water behind little source of pollution water process circulation wetland; Storm runoff.
Description
Technical field
The present invention relates to a kind of artificial wet land water treatment technology, especially storm runoff, lower concentration difficult degradation and the lower organic waste water of C/N, the treatment process of promptly high nitrogen water.
Background technology
Because greenery patches or farmland carry soil particle, organic matter (soil ulmin is main), nutritive substances such as N, P through storm runoff, directly do not enter big volume water body such as man-made lake, reservoir if do not add processing, can cause water hypoxia and eutrophication; Some large-size lake water body organism concentration are low and based on the organism of difficult degradation, TN concentration is higher relatively in the water, and C/N is lower, when during as the make up water of view park water, adopting conventional water technology to be difficult to satisfy water quality requirement with this type of water.For the treatment process of surface water, normal at present (prechlorination)-coagulation-precipitation (clarification)-filtration-sterilization process that adopts, this technology has certain effect for suspended matter, colloid pollution thing in the water, but does not almost have effect for solvability organic contamination, ammonia nitrogen.Ammonia nitrogen can and the chlorine generation chloramines that reacts, disinfection is slow, needs long duration of contact, and the chloramines frowziness; To the organism in the water, the break point chlorination methods that adopt are handled more, but after organic pollutant can generate haloform (THMs) with chlorine in finding water, adopt the break point chlorination method to handle contaminated water source and caused that fears are entertained that, thereby seeking to remove the effective ways of high nitrogen and organic pollutant water always.
Summary of the invention
The present invention provides a kind of just to be had security, can effectively reduce the water technology of the view park water make up water of its ammonia nitrogen and organic contamination substrate concentration view park water make up water in order to overcome the weak point that above-mentioned view park big volume water body make up water exists.
Technical problem to be solved by this invention provides a kind of technology of artificial swamp water treatment, especially at storm runoff, lower concentration difficult degradation and the lower organic waste water of C/N, the treatment process of promptly high nitrogen water.
The objective of the invention is to realize by following technical solution.
The present invention adopts the method for circulation artificial swamp, and promptly wetland adopts two or more sets parallel forms, and every group by the annular series connection of four canals, establishes mid-board and training wall between canal; The wetland feed-water end is established biological zone of action, and partition wall is established in the centre, and the zone of action hangs elastic solid filler, and elastic solid filler surface attachment growth microbial film moves according to anoxic-aerobic process; The wetland outside two channels are reserved open water, add pusher under water; Establish the air-water backwashing system at the wetland feed-water end.The wetland feed-water end is provided with biological zone of action, this district hangs elastic solid filler, the growth microbial film of elastic solid filler surface attachment moves according to anoxic-aerobic process, the acidication effect of anoxic part is decomposed into the easy degradation material of small molecules with the macromolecular substance of difficult degradation in the water, and provide carbon source for denitrifying bacteria, finish the denitrification denitrogenation effect under anaerobic environment, aerobic part is finished the oxidative degradation of organic pollutant, and the ammonia nitrogen in the water is had certain nitrification; The wetland outside two channels are reserved the water surface that opens wide, and add pusher under water, so just can guarantee the circulation oxidation effect.The use of circulation, can strengthen the dissolved oxygen content in the wetland, improve the nitrification efficiency of ammonia nitrogen, and nitric nitrogen is delivered to feed-water end, the organism in the utilization water inlet and the anaerobic environment of feed-water end are finished the denitrification denitrogenation effect, greatly reduce organic concentration and total nitrogen concentration in the water, crucial effect is arranged preventing follow-up wetland matrix silting.The pre-buried back flushing pipeline of circulation wetland feed-water end, back flushing is carried out in the change of hydrous water flow path direction when wetland circulation turns to, and regularly the suspended matter back flushing in the matrix to biological zone of action is discharged through post precipitation.In addition, can also divide into the perforation gas distribution pipe at elastic solid filler, viewing system dissolved oxygen situation start-stop aerating system is to satisfy the needs of oxygen in water; Also settling pit can be set before the circulation wetland, water such as storm runoff enter the circulation wetland again after settling pit is removed inorganic particle, under the acting in conjunction of wetland matrix, plant, microorganism, by physics, chemistry, biological action pollution substance is removed.
The invention has the beneficial effects as follows, use the artificial wet land water treatment technology of the present invention, can effectively remove nitrogenous substancess such as hardly degraded organic substance matter in little source of pollution water and ammonia nitrogen, organonitrogen, improve the conventional water treatment process operating performance, strengthen water security.Little source of pollution water meets or exceeds surface water III class water after handling through the circulation wetland; Storm runoff meets or exceeds surface water IV class water behind settling pit-circulation wetland.
Further set forth content of the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a FB(flow block) of the present invention;
Fig. 2 is a circulation wetland structure synoptic diagram;
Fig. 3 is the sectional structure synoptic diagram of Fig. 2 A-A.
Embodiment
Wetland is set to two or more sets parallel forms, and every group is made of the series connection of 4 channels 1 annular, in being provided with between the circulation channel 1 every training wall 2; Wetland feed-water end 3 is provided with biological zone of action 4, and biological zone of action 4 hangs elastic solid filler 5, elastic solid filler surface attachment growth microbial film 6, and this microbial film moves according to anoxic-aerobic process; The wetland outside two channels are reserved the water surface that opens wide, and add pusher 7 under water; Be provided with air water back washing cleaning device 8 at wetland feed-water end 3; The present invention divides into perforation gas distribution pipe 9 at elastic solid filler 5; Water is elder generation's process settling pit 10 before entering the circulation artificial swamp.
The circulation wetland adopts parallel form, hydraulic detention time 3h～6h.Long 50m～the 100m of wetland canal, canal is long: wide ≈ 10: 1, the annular series connection of 4 canals, in establishing between canal every training wall 2.The all dark 0.7m of wetland design current velocity 0.12m/s, water.Feed-water end is established biological zone of action 4, and every training wall 2, biological zone of action 4 hung elastic solid filler 5 during established the centre, and filler is divided into perforation gas distribution pipe 9, viewing system dissolved oxygen situation start-stop aerating system.For guaranteeing the circulation oxidation effect, the outside two channels are reserved open water, add pusher 7 under water.The back flushing pipeline of the pre-buried back-purge system 8 of circulation wetland feed-water end, back flushing is carried out in the change of hydrous water flow path direction when wetland circulation turns to, the back flushing draining enters the biological zone of action 4 of wetland front end with circulation, suspended substance is removed through microbiological deterioration and flocculation sediment in the zone of action, and throw out is regularly discharged.Wetland matrix adopts the land waste of particle diameter 30～50mm, and porosity is about 33%, plants the strong plants of humidogene soil removability such as Canna generalis Bailey, cattail, calamus, parasol bamboo on the matrix.
Claims (1)
1, a kind of artificial wet land water treatment technology is characterized in that, wetland is set to two or more sets parallel forms, and every group is made of 4 channels (1) annular series connection, between channel (1), being provided with every training wall (2); Wetland feed-water end (3) is provided with biological zone of action (4), and biological zone of action (4) hang elastic solid filler (5), elastic solid filler surface attachment growth microbial film (6), and this microbial film moves according to anoxic-aerobic process; The wetland outside two channels are reserved open water, add pusher (7) under water; Be provided with air water back washing cleaning device (8) at wetland feed-water end (3); Wetland adopts the circulation artificial swamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100663118A CN100569665C (en) | 2007-10-24 | 2007-10-24 | A kind of artificial wet land water treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100663118A CN100569665C (en) | 2007-10-24 | 2007-10-24 | A kind of artificial wet land water treatment technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101172693A CN101172693A (en) | 2008-05-07 |
| CN100569665C true CN100569665C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100663118A Expired - Fee Related CN100569665C (en) | 2007-10-24 | 2007-10-24 | A kind of artificial wet land water treatment technology |
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| Country | Link |
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| CN (1) | CN100569665C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786728B (en) * | 2010-02-01 | 2012-05-23 | 河海大学 | Diversion-type horizontal subsurface flow constructed wetland reactor |
| CN102259985B (en) * | 2011-07-01 | 2012-11-28 | 河海大学 | Method for reinforcing surface flow artificial wetland system by using biomembrane |
| CN102381805B (en) * | 2011-08-03 | 2013-04-03 | 交通运输部科学研究院 | Method and device for comprehensively purifying runoff rainwater |
| CN103319050B (en) * | 2013-07-04 | 2014-09-10 | 李敬生 | Ecological safety purifying method for sewage of rivers and channels |
| CN104817183A (en) * | 2015-04-20 | 2015-08-05 | 天津市联合环保工程设计有限公司 | Artificial subsurface wetland with dry bed |
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2007
- 2007-10-24 CN CNB2007100663118A patent/CN100569665C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101172693A (en) | 2008-05-07 |
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Granted publication date: 20091216 Termination date: 20101024 |