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Efficient ecological purification system for farmland discharge

A technology for farmland drainage and ecological purification, applied in soil drainage, agriculture, water pollutants, etc., can solve problems such as excessive nitrate nitrogen content in groundwater, achieve the effects of protecting ecological functions, low maintenance costs, and reducing the risk of pollution

Active Publication Date: 2020-03-06
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of NH not absorbed by crops in farmland 4 + -H, NO 3 - -N will seep into the ground with rainfall or irrigation water, causing the content of nitrate nitrogen in groundwater to seriously exceed the standard

Method used

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  • Efficient ecological purification system for farmland discharge
  • Efficient ecological purification system for farmland discharge
  • Efficient ecological purification system for farmland discharge

Examples

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Embodiment Construction

[0031] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0032] The present invention takes the paddy field in a typical paddy planting area as an example. The paddy rice needs to be drained regularly in order to prevent root hypoxia. 4 + -N concentration 5~8mg / L, NO 3 - -N concentration 10~15mg / L, total phosphorus 1~3mg / L.

[0033] The structural schematic diagram of the efficient ecological purification system of farmland drainage in the specific embodiment is as follows fi...

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Abstract

The invention provides an efficient ecological purification system for a farmland discharge and a building method of the efficient ecological purification system for the farmland discharge, and belongs to the technical field of agricultural non-point source pollution treatment and the technical field of agricultural engineering. The system is composed of a farmland escape canal, detention ponds, awater distribution canal, an integrated-flow constructed wetland, a porous structure protective slope, a main discharge canal and a return pipeline. According to the efficient ecological purificationsystem for the farmland discharge and the building method of the efficient ecological purification system for the farmland discharge, an efficient treatment mode is provided for rural non-point source pollution, and integrated ecological means for slope protecting and pollutant intercepting are built for regulation of black and odorous rivers and eutrophic rivers at the same time, and the efficient ecological purification system for the farmland discharge and the building method of the efficient ecological purification system for the farmland discharge are low in capital construction investment, low in operating cost and convenient to operate and manage, has a good landscape effect, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of non-point source polluted water treatment and the technical field of agricultural engineering, and more specifically relates to a high-efficiency ecological purification system for farmland drainage, which can be combined with the design and construction of ecological revetments in the process of black and odorous river regulation and eutrophic water body treatment , on the premise of ensuring the integrity of the landscape as much as possible, to achieve efficient purification of farmland drainage. Background technique [0002] The crux of the eutrophication of black and odorous water bodies and rivers is the continuous input of exogenous pollutants, and the farmland drainage caused by extensive fertilization of farmland is a major contributor to black and odorous water bodies and eutrophication. [0003] At present, the nitrogen fertilizer used in large quantities in agricultural production is mainly am...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34E02B11/00C02F101/10C02F101/16
CPCC02F3/32C02F3/34E02B11/00E02B11/005C02F2101/105C02F2101/16Y02W10/10
Inventor 王宇晖王逸飞宋新山蒋兴一丁学沪戴晓波司志浩曹新赵雨枫程贤良迮思文
Owner DONGHUA UNIV
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