CN102515354A - Nitrogen phosphor interception undercurrent dam - Google Patents
Nitrogen phosphor interception undercurrent dam Download PDFInfo
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- CN102515354A CN102515354A CN201110342733XA CN201110342733A CN102515354A CN 102515354 A CN102515354 A CN 102515354A CN 201110342733X A CN201110342733X A CN 201110342733XA CN 201110342733 A CN201110342733 A CN 201110342733A CN 102515354 A CN102515354 A CN 102515354A
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- interception
- nitrogen phosphorus
- undercurrent dam
- undercurrent
- dam
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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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- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a nitrogen phosphor interception undercurrent dam which is applied in a farmland ecological trench to intercept substances such as nitrogen, phosphor and the like. According to the invention, water permeable walls are arranged at the two sides. A gravel filter layer is arranged in the middle of the water permeable walls. A soil cover layer is disposed over the gravel filter layer. A vegetable system is planted on the soil cover layer. The nitrogen phosphor interception undercurrent dam can be placed in a farmland drainage channel and a surface flow wetland. In the surface flow wetland system, when sewage flows through the nitrogen phosphor interception undercurrent dam, hydraulic retention time can be effectively increased; in addition, due to the arrangement of the gravel filter layer, suspending pollutants in the water body can be settled and absorbed, and plants on the nitrogen phosphor interception undercurrent dam can effectively absorb eutrophicated pollutants such as nitrogen, phosphor and the like in the water body. Finally, sewage treatment effect of a common surface flow wetland is increased.
Description
Technical field
The present invention relates to a kind of nitrogen phosphorus interception undercurrent dam, be specifically related to a kind of nitrogen phosphorus interception undercurrent dam that is applied to material such as agricultural ecological ditch interception nitrogen phosphorus.
Background technology
Chemical fertilizer this season utilization ratio (34.2%), the especially utilization rate of nitrogen fertilizer on the low side of China only have 30%～35%, are lower than the 10-20 of developed country percentage point.Yet, increase the problem of environmental pollution that the fertilizer input amount causes and also become increasingly conspicuous, this is that master's agriculture prodn pattern has also directly been quickened the consumption of important natural resources with a large amount chemical fertilizer input.
Be accompanied by the utilization of HS agrochemicals, the loss of pollutents such as farmland nitrogen, phosphorus becomes the important factor that causes body eutrophication.With Taihu Lake is example, and the series of Taihu Lake basin representative region monitoring in recent years and experimental study result's statistics shows that the loss coefficient of farmland, basin nitrogen is about 10-20kg/hm
2A, the loss coefficient of phosphorus is about 1-5kg/hm
2A.Therefore, study and define cost-effective farmland nitrogen, phosphorus loss resistance control means, subdue pollutant load such as nitrogen, phosphorus in the farmland drainage,, promote that basin society and sustainable economic development are significant for containment Taihu Lake body eutrophication.
The state that existing sewage work often is in intermittent operation or does not move because processing cost and standing charges are expensive causes the waste of a large amount of construction funds and the deterioration day by day of environmental pollution.In addition, traditional activated sludge process is main to remove the carbon source pollutent, and is then very little to the removal of nutritive substances such as nitrogen phosphorus, and water outlet enters problems such as being prone to cause eutrophication behind the environment water.
Artificial swamp is to develop a kind of faster effective sewage disposal technology in recent decades, and less investment, easy care, good purification, applied widely are paid much attention to, and at the existing many application examples of China, has obtained good environmental effect at present.
Hydraulic detention time is one of important design variable of artificial marsh sewage treatment system; Nitrogen, phosphorus and suspended substance etc. have great significance this parameter in the water body for removing; Current wetland often can increase hydraulic detention time in less relatively processing unit, then need relatively long processing unit to realize identical hydraulic detention time for the surface current wetland.
But the advantage of comparing surface current wetland wetland with current wetland is design and simple to operate; Less investment; Working cost is low, in order to improve existing surface current artificial wetland's nitrogen phosphorus interdiction capability, increases surface current artificial wetland's hydraulic detention time; Subdue water body nitrogen phosphorus and suspended substance etc., designed following nitrogen phosphorus interception undercurrent dam.
Summary of the invention
The object of the invention is to provide a kind of nitrogen phosphorus interception undercurrent dam, thereby increases surface current artificial wetland system hydraulic detention time, improves the water pollutant treatment effect, beautifies surrounding enviroment.
The present invention is achieved in that
A kind of nitrogen phosphorus interception undercurrent dam, there is permeable wall both sides, are provided with the gravel filling layer in the middle of the permeable wall, above the gravel filling layer, soil cover are arranged, and plant on the soil cover and are implanted with vegetation system.
The gravel filling layer reduces along its gravel particle diameter of water (flow) direction gradually.
The vegetation of said vegetation system plantation comprises evergreen shrubs and evergreen turfgrass.
Evergreen shrubs in the botanical system can be shrubs such as Chinese ilex, little leaf boxwood, glossy privet, barberry, Chinese littleleaf box, Chinese photinia, and evergreen lawn can be English ryegrass, Festuca Arundinacea, annual bluegrass, coronule flower etc.
In the middle of gravel filling layer and soil cover, can bury a pipeline that runs through whole nitrogen phosphorus interception undercurrent dam underground.
In the gravel filling layer, current updrift side gravel size is 5 to 8cm, and current downstream direction gravel particle diameter is 1 to 3cm; Gravel filling in the gravel filling layer can be in the materials such as pebbles, useless fragment of brick, cement block, cinder one or more.Permeable wall is that hollow brick assembles and forms, and thickness is 40cm.
Described nitrogen phosphorus interception undercurrent dam length degree is 4 to 8m, and height 70 is to 90cm, and width can be adjusted according to the different ecosystems and practical situation.
The gravel bed packing height is 40-50cm, on gravel bed, covers the pedosphere of high 30-40cm.
This nitrogen phosphorus interception undercurrent dam can place farmland drainage irrigation canals and ditches and surface current artificial wetland; When sewage in the surface current artificial wetland system is tackled the undercurrent dam through nitrogen phosphorus; Can effectively increase hydraulic detention time, and, can make the suspended contaminant in the water body obtain sedimentation and absorption owing to be provided with the gravel filling layer; Plant on the nitrogen phosphorus interception undercurrent dam also can effectively absorb the eutrophication pollution things such as nitrogen phosphorus in the water body, finally increases the wastewater treatment efficiency of general surface person who lives in exile worker wetland.
Description of drawings
Fig. 1 is the structural representation on nitrogen phosphorus interception undercurrent dam.
1 is permeable wall among the figure, the 2nd, and gravel packing layer, the 3rd, upflow tube, the 4th, permeable wall, the 5th, pedosphere, the 6th, evergreen shrubs, the 7th, evergreen lawn.
Embodiment
A kind of nitrogen phosphorus interception undercurrent dam, its width is according to farmland drainage irrigation canals and ditches or surface current artificial wetland's structure, length 4-8m; Height 70-90cm; The both sides permeable wall confirms that according to nitrogen phosphorus interception undercurrent height of dam degree thickness is 40cm, is formed by staggered the assembling of perforated brick; Big particle diameter gravel (can be pebbles, brickbat head, slag etc.) layer is filled near water inlet one side in permeable wall inside; Reduce the gravel particle diameter then successively and fill until the opposite side permeable wall, the gravel bed packing height is 40-50cm, on gravel bed, covers the pedosphere of high 30-40cm; The plantation evergreen shrubs is like shrubs such as Chinese ilex, little leaf boxwood, glossy privet, barberry, Chinese littleleaf box, Chinese photinias on the soil, evergreen lawn such as English ryegrass, Festuca Arundinacea, annual bluegrass, coronule flower etc.
Application of the present invention can effectively increase surface current artificial wetland's hydraulic detention time; The gravel packing layer can effectively adsorb and tackle the pollutent in the water body; Botanical system can absorb, the pollutent in absorption and the enrichment water body; Can and beautify the environment for the water body delivering oxygen simultaneously, effectively reduce water body nitrogen phosphorus 40%-50% through this system of the continuous service more than 2 years.
Claims (8)
1. a nitrogen phosphorus is tackled the undercurrent dam, it is characterized in that: there is permeable wall said nitrogen phosphorus interception both sides, undercurrent dam, are provided with the gravel filling layer in the middle of the permeable wall, above the gravel filling layer, soil cover are arranged, and vegetation system is arranged on the soil cover.
2. according to the said nitrogen phosphorus interception of claim 1 undercurrent dam, it is characterized in that: in the middle of gravel filling layer and soil cover, be embedded with a pipeline that runs through whole nitrogen phosphorus interception undercurrent dam.
3. according to the said nitrogen phosphorus interception of claim 1 undercurrent dam, it is characterized in that: the gravel filling of said gravel filling layer is one or more in pebbles, useless fragment of brick, cement block, the cinder, and said gravel filling reduces along water (flow) direction gravel particle diameter gradually.
4. according to the said nitrogen phosphorus of claim 3 interception undercurrent dam, it is characterized in that: in the gravel filling layer, current updrift side gravel size is 5 to 8cm, and current downstream direction gravel particle diameter is 1 to 3cm.
5. according to the said nitrogen phosphorus interception of claim 1 undercurrent dam, it is characterized in that: the vegetation of said vegetation system plantation comprises evergreen shrubs and evergreen turfgrass.
6. according to the said nitrogen phosphorus interception of claim 5 undercurrent dam, it is characterized in that: said evergreen shrubs is Chinese ilex, little leaf boxwood, glossy privet, barberry, Chinese littleleaf box, Chinese photinia, and evergreen lawn is English ryegrass, Festuca Arundinacea, annual bluegrass, coronule flower.
7. according to the said nitrogen phosphorus of claim 1 interception undercurrent dam, it is characterized in that: said permeable wall is that hollow brick assembles and forms, and thickness is 40cm.
8. according to the said nitrogen phosphorus of the arbitrary claim of claim 1 to 7 interception undercurrent dam, it is characterized in that: described nitrogen phosphorus interception undercurrent dam length degree is 4 to 8m, and height 70 is to 90cm, and the gravel filling layer height is 40-50cm, and the soil cover height is 30-40cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342733XA CN102515354B (en) | 2011-11-03 | 2011-11-03 | Nitrogen phosphor interception undercurrent dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342733XA CN102515354B (en) | 2011-11-03 | 2011-11-03 | Nitrogen phosphor interception undercurrent dam |
Publications (2)
| Publication Number | Publication Date |
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| CN102515354A true CN102515354A (en) | 2012-06-27 |
| CN102515354B CN102515354B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110342733XA Expired - Fee Related CN102515354B (en) | 2011-11-03 | 2011-11-03 | Nitrogen phosphor interception undercurrent dam |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910783A (en) * | 2012-10-18 | 2013-02-06 | 江苏商达水务有限公司 | Artificial wetland micro power treating system applied to rural biological sewage |
| CN103086570A (en) * | 2013-01-15 | 2013-05-08 | 天津大学 | Farmland non-point pollution stepped undercurrent dam ecological purification ditch system |
| CN103112954A (en) * | 2013-03-08 | 2013-05-22 | 江苏省环境科学研究院 | Method for prevention and control of non-point source pollution and cyclic utilization of resources of tea garden and system thereof |
| CN103410124A (en) * | 2013-08-23 | 2013-11-27 | 中国科学院东北地理与农业生态研究所 | Method for constructing ecological intercepting dams capable of improving wet land water levels |
| CN103663702A (en) * | 2013-10-18 | 2014-03-26 | 浙江绿凯环保科技有限公司 | Ecological intercepting technology of source of pollution of urban and rural polluted water |
| CN103866743A (en) * | 2014-02-14 | 2014-06-18 | 河海大学 | Environment-friendly barrage and water body purification method |
| CN104174641A (en) * | 2014-08-19 | 2014-12-03 | 四川达沃斯生态环保科技有限公司 | Heavy metal contaminated soil remediation device and isolated remediation method |
| CN105706691A (en) * | 2016-02-18 | 2016-06-29 | 广东省生态环境与土壤研究所 | Method for reducing farmland drainage canal nitrogen and phosphorus loss through charcoal |
| CN106277657A (en) * | 2016-10-31 | 2017-01-04 | 中冶华天工程技术有限公司 | The most interim purifying integral system and effluent purification method |
| CN108358397A (en) * | 2018-03-26 | 2018-08-03 | 新乡市环境保护科学设计研究院 | A kind of Multi-functional effluent treatment unit for improving the ecological environment |
| CN108423919A (en) * | 2018-01-30 | 2018-08-21 | 苏州农业职业技术学院 | A kind of permeable purification dam that nitrogen phosphorus intercepts |
| CN109574402A (en) * | 2018-12-28 | 2019-04-05 | 安徽水韵环保股份有限公司 | A kind of ecological circulation in situ for river regulation filters system only |
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| CN101973638A (en) * | 2010-11-09 | 2011-02-16 | 河海大学 | Ecological percolating type water purification groin system |
| CN202416277U (en) * | 2011-11-03 | 2012-09-05 | 农业部环境保护科研监测所 | Nitrogen and phosphorus intercepting submerged dam for ecological ditch |
-
2011
- 2011-11-03 CN CN201110342733XA patent/CN102515354B/en not_active Expired - Fee Related
Patent Citations (4)
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| WO1985001723A1 (en) * | 1983-10-17 | 1985-04-25 | Városépitési Tudományos És Tervezo^" Intézet | Process for protecting lakes against eutrophization caused by subsoil water |
| CN1978329A (en) * | 2005-12-01 | 2007-06-13 | 北京建筑工程学院 | T-shape dam upper stross potential-flow wet ground |
| CN101973638A (en) * | 2010-11-09 | 2011-02-16 | 河海大学 | Ecological percolating type water purification groin system |
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Non-Patent Citations (1)
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| 田猛 等: "用于控制太湖流域农村面源污染的透水坝技术试验研究", 《环境科学学报》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910783A (en) * | 2012-10-18 | 2013-02-06 | 江苏商达水务有限公司 | Artificial wetland micro power treating system applied to rural biological sewage |
| CN103086570A (en) * | 2013-01-15 | 2013-05-08 | 天津大学 | Farmland non-point pollution stepped undercurrent dam ecological purification ditch system |
| CN103112954A (en) * | 2013-03-08 | 2013-05-22 | 江苏省环境科学研究院 | Method for prevention and control of non-point source pollution and cyclic utilization of resources of tea garden and system thereof |
| CN103112954B (en) * | 2013-03-08 | 2014-04-30 | 江苏省环境科学研究院 | Method for prevention and control of non-point source pollution and cyclic utilization of resources of tea garden and system thereof |
| CN103410124A (en) * | 2013-08-23 | 2013-11-27 | 中国科学院东北地理与农业生态研究所 | Method for constructing ecological intercepting dams capable of improving wet land water levels |
| CN103663702A (en) * | 2013-10-18 | 2014-03-26 | 浙江绿凯环保科技有限公司 | Ecological intercepting technology of source of pollution of urban and rural polluted water |
| CN103866743B (en) * | 2014-02-14 | 2015-07-08 | 河海大学 | Environment-friendly barrage and water body purification method |
| CN103866743A (en) * | 2014-02-14 | 2014-06-18 | 河海大学 | Environment-friendly barrage and water body purification method |
| CN104174641A (en) * | 2014-08-19 | 2014-12-03 | 四川达沃斯生态环保科技有限公司 | Heavy metal contaminated soil remediation device and isolated remediation method |
| CN104174641B (en) * | 2014-08-19 | 2016-03-16 | 四川达沃斯生态环保科技有限公司 | A kind of heavy-metal contaminated soil prosthetic device and isolation restorative procedure |
| CN105706691A (en) * | 2016-02-18 | 2016-06-29 | 广东省生态环境与土壤研究所 | Method for reducing farmland drainage canal nitrogen and phosphorus loss through charcoal |
| CN106277657A (en) * | 2016-10-31 | 2017-01-04 | 中冶华天工程技术有限公司 | The most interim purifying integral system and effluent purification method |
| CN108423919A (en) * | 2018-01-30 | 2018-08-21 | 苏州农业职业技术学院 | A kind of permeable purification dam that nitrogen phosphorus intercepts |
| CN108423919B (en) * | 2018-01-30 | 2021-04-06 | 苏州农业职业技术学院 | Nitrogen phosphorus interception's purification dam that permeates water |
| CN108358397A (en) * | 2018-03-26 | 2018-08-03 | 新乡市环境保护科学设计研究院 | A kind of Multi-functional effluent treatment unit for improving the ecological environment |
| CN109574402A (en) * | 2018-12-28 | 2019-04-05 | 安徽水韵环保股份有限公司 | A kind of ecological circulation in situ for river regulation filters system only |
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|---|---|
| CN102515354B (en) | 2013-10-16 |
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