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System and method for treating runway pollution by aquatic floating plant

A technology for floating plants and river channels, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., to achieve the effects of fast construction, low construction and operating costs, and improved self-purification capabilities

Inactive Publication Date: 2004-12-08
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention proposes a system and method for using aquatic floating plants to control river channel pollution, which can use all river channel water surfaces to cultivate water hyacinth and other aquatic floating plants, remove organic pollutants and nutrient salts in polluted rivers, and solve the problem of using river channel to cultivate aquatic floating plants. The problem of pollution

Method used

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Embodiment

[0025] In this embodiment, a tributary ditch of the Nanfei River is selected to implement the present invention. The Nanfei River flowing through the urban area of ​​Hefei receives most of the untreated sewage in Hefei and the nutrients lost from the farmland in the river basin. It is one of the main channels for the organic pollutants and nutrients discharged into Chaohu Lake. The total phosphorus discharged from Nanfei River into Chaohu Lake is about 400 tons, which has exceeded the self-purification capacity of Chaohu Lake. Implement the tributary of the present invention to be long 180 meters, wide 14 meters, deep 3.2m, discharge into domestic sewage 600 tons every day. By setting up barrage nets (or dams can also be built) in the river, the flow rate of the river is controlled below 0.3 m / s, and aquatic floating plants such as water hyacinth and duckweed are cultivated, and the aerator is used to aerate the river, and every day and every few days Floating plants such as ...

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Abstract

A system and method for culturing the water plant to decrease the organic pollutants and nutritive salts in river features that a barrage dam or net is built in a polluted river, the floating water plants are cultured in the upstream river of said barrage, and the treated water flows into the downstream river of said barrage.

Description

Technical field: [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a system and a method for reducing organic pollutants and nutrient salts in rivers by using cultured aquatic plants. Background technique: [0002] With the development of modern science and technology, only about 30-50% of chemical fertilizers such as nitrogen, phosphorus, and potassium, which are widely used in agricultural production, are absorbed by plants, and most of them flow into natural water bodies such as rivers and lakes, making natural water bodies eutrophic, which in turn leads to algae The large number of reproductions makes the content of organic matter in the water body increase rapidly, pollutes the living water source of human beings, and becomes a problem that is difficult to deal with. [0003] In order to treat domestic sewage, cities must spend huge sums of money to build huge pipe networks and large sewage treatment plants. ...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F7/00
CPCY02W10/10
Inventor 黄卫东
Owner UNIV OF SCI & TECH OF CHINA
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