CN201678556U - Field low-concentration non-point sewage biological purification facility - Google Patents
Field low-concentration non-point sewage biological purification facility Download PDFInfo
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- CN201678556U CN201678556U CN 201020123001 CN201020123001U CN201678556U CN 201678556 U CN201678556 U CN 201678556U CN 201020123001 CN201020123001 CN 201020123001 CN 201020123001 U CN201020123001 U CN 201020123001U CN 201678556 U CN201678556 U CN 201678556U
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Abstract
The utility model relates to a field low-concentration non-point sewage biological purification facility, which is characterized in that an economical aquatic plant zone, a grid, a sedimentation tank and a composite medium water filter dam are sequentially arranged along the water flow direction of an existing field ditch. Aquatic plants planted in the economical aquatic plant zone are arrowheads or wild rice shoots. The composite media of the composite media water filter dam include high-efficiency nitrogen-phosphorus absorptive composite media, such as walnut shells, lignite, steel slag, ceramic particles and the like. The height of the composite media water filter dam is 60%-80% of that of the field ditch. Compared with the prior art, the field low-concentration non-point sewage biological purification facility has the advantages that the facility has the function of biologically purifying for field low-concentration non-point sewage, can effectively reduce nitrogen and phosphorous content, sufficiently utilizes existing field ditch space, saves land resources, and is simple in structure, convenient in construction and future maintenance and low in construction cost, and planting of the economical aquatic plants can effectively reduce operational maintenance cost.
Description
Technical field:
The utility model belongs to pollution of area source prevention and cure project field, farmland, relates to a kind of farmland low-concentration area source sewage ecological purification facility.
Background technology:
In recent years, along with the continuous increase of applying quantity of chemical fertilizer, total nitrogen, total phosphorous are respectively 2～15mg/L, 0.1～0.5mg/L in farmland rainfall runoff or the draining, are V～IV class surface water, belonging to low-concentration area source sewage, is the major incentive of river, district, the network of rivers, farmland, water body in lake eutrophication.Yet existing farmland ditch only has drain function, the water purification function reduction.Wherein, existing native irrigation canals and ditches severe water and soil erosion, suspended substance and silt in can not limited trap water; Existing " three light " irrigation canals and ditches hydrobiont amount less, especially the waterplant amount is few, does not have ecological water purification function substantially.It is engineered how to utilize existing farmland ditch to carry out ecology, makes up the strong farmland low-concentration area source sewage ecological purification facility of water purification ability, and control farmland pollution of area source is needed solution badly.
The utility model content:
The purpose of this utility model is to provide a kind of farmland low-concentration area source sewage ecological purification facility, nitrogen, phosphorus content in the low-concentration area source sewage that produces when effectively cutting down farmland rainfall runoff or draining, realize its ecological purification, effectively prevent and treat the eutrophication in river, district, the network of rivers, farmland, lake.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: along water (flow) direction, be provided with economical waterplant band, grid, settling tank, complex media filter dam successively in existing farmland ditch.
The waterplant of described economical waterplant band plantation is arrowhead or wild rice stem.
Complex media in the described complex media filter dam is efficient nitrogen phosphorus absorption such as nut-shell, brown coal, slag, a haydite complex media.
The height of described complex media filter dam is 60%～80% of the described farmland ditch degree of depth.
Its principle is: by at economical waterplant band plantation arrowhead or wild rice stem, increase the biomass in the facility, especially the waterplant amount strengthens absorption, adsorptive power to nitrogen phosphorus, reduces the nitrogen and phosphorus content in the water; By the interception and the precipitation of grid, settling tank, remove suspended substance, reduce particulate form nitrogen and phosphorus content in the water; By complex media in the complex media filter dam with and on physics, chemistry, the bio combined effect of the microorganism that adheres to, further reduce the nitrogen and phosphorus content in the water, thereby realize farmland low-concentration area source sewage ecological purification.
The beneficial effects of the utility model:
The ecological purification function of the farmland low-concentration area source sewage that described facility produces when having rainfall runoff or draining can effectively be prevented and treated the eutrophication of river, district, the network of rivers, farmland, water body in lake, and does not influence the normal drain function of farmland ditch; Make full use of existing farmland ditch space, do not strive ground, saved land resources with grain; Facility structure is simple, is convenient to build and later maintenance, and construction cost is low; Plant economical waterplant, have certain economic benefits, can effectively reduce operation expense.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Embodiment:
Embodiment is further described the utility model below in conjunction with accompanying drawing.
Utilize existing farmland ditch (1), be provided with economical waterplant band (2) grid (3), settling tank (4), complex media filter dam (5) successively along water (flow) direction, the waterplant of economical waterplant band (2) plantation is an arrowhead, complex media in the complex media filter dam (5) is efficient nitrogen phosphorus absorption such as nut-shell, brown coal, slag, a haydite complex media, and the height of complex media filter dam (5) is 70% of farmland ditch (1) degree of depth.The low-concentration area source sewage that produces when farmland rainfall runoff or draining enters above-mentioned ecological purification facility, at first the arrowhead by economical waterplant band (2) plantation with and absorption, the adsorption of going up attached microbial, reduce the nitrogen and phosphorus content in the water.Then,, remove suspended substance, reduce particulate form nitrogen and phosphorus content in the water by the interception and the precipitation of grid (3), settling tank (4).At last, by complex media in the complex media filter dam (5) with and on physics, chemistry, the bio combined effect of the microorganism that adheres to, further reduce the nitrogen and phosphorus content in the tail water of farmland, thereby realize the purpose of farmland low-concentration area source sewage ecological purification, the eutrophication of effectively preventing and treating river, district, the network of rivers, farmland, water body in lake.
Claims (2)
1. a facility that is applicable to farmland low-concentration area source sewage ecological purification is characterized in that: along water (flow) direction, be provided with economical waterplant band (2), grid (3), settling tank (4), complex media filter dam (5) successively in farmland ditch (1).
2. farmland according to claim 1 low-concentration area source sewage ecological purification facility is characterized in that: the height of complex media filter dam (5) is 60%～80% of farmland ditch (1) degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020123001 CN201678556U (en) | 2010-03-04 | 2010-03-04 | Field low-concentration non-point sewage biological purification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020123001 CN201678556U (en) | 2010-03-04 | 2010-03-04 | Field low-concentration non-point sewage biological purification facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678556U true CN201678556U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020123001 Expired - Fee Related CN201678556U (en) | 2010-03-04 | 2010-03-04 | Field low-concentration non-point sewage biological purification facility |
Country Status (1)
| Country | Link |
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| CN (1) | CN201678556U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951774A (en) * | 2012-11-29 | 2013-03-06 | 上海勘测设计研究院 | Water quality pre-treating facility |
| CN105110562A (en) * | 2015-08-31 | 2015-12-02 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | Treatment method of farmland wastewater |
| CN106882899A (en) * | 2017-02-09 | 2017-06-23 | 中国农业科学院农业环境与可持续发展研究所 | A kind of farmland nitrogen phosphorus pollution of area source control and recycling system and method |
| CN109626723A (en) * | 2018-12-19 | 2019-04-16 | 北京建筑大学 | A kind of ecological treatment system controlling agricultural non -point pollution |
| CN110104779A (en) * | 2019-03-29 | 2019-08-09 | 浙江农林大学 | A kind of construction method of farmland nitrogen phosphorus ecological intercepting sewerage |
| CN110526408A (en) * | 2019-09-06 | 2019-12-03 | 南京林业大学 | A kind of agricultural land water quality ecological repair system and method |
| CN114230105A (en) * | 2021-12-27 | 2022-03-25 | 南京大学 | Method for reducing farmland non-point source pollution by utilizing reinforced natural irrigation and drainage ditches |
-
2010
- 2010-03-04 CN CN 201020123001 patent/CN201678556U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951774A (en) * | 2012-11-29 | 2013-03-06 | 上海勘测设计研究院 | Water quality pre-treating facility |
| CN105110562A (en) * | 2015-08-31 | 2015-12-02 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | Treatment method of farmland wastewater |
| CN106882899A (en) * | 2017-02-09 | 2017-06-23 | 中国农业科学院农业环境与可持续发展研究所 | A kind of farmland nitrogen phosphorus pollution of area source control and recycling system and method |
| CN109626723A (en) * | 2018-12-19 | 2019-04-16 | 北京建筑大学 | A kind of ecological treatment system controlling agricultural non -point pollution |
| CN110104779A (en) * | 2019-03-29 | 2019-08-09 | 浙江农林大学 | A kind of construction method of farmland nitrogen phosphorus ecological intercepting sewerage |
| CN110526408A (en) * | 2019-09-06 | 2019-12-03 | 南京林业大学 | A kind of agricultural land water quality ecological repair system and method |
| CN114230105A (en) * | 2021-12-27 | 2022-03-25 | 南京大学 | Method for reducing farmland non-point source pollution by utilizing reinforced natural irrigation and drainage ditches |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20140304 |