Construction method of multi-pond system for controlling agricultural non-point source pollution

A technology of agricultural non-point source pollution and construction method, applied in the construction field of multi-pond system, can solve the problems of long hydraulic retention time, large area and unstable treatment efficiency.

Active Publication Date: 2016-12-14
重庆大方生态环境治理股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the ecological pond technology also has certain defects: the treatment efficiency is unstable, the hydraulic retention time is long, the floor area is large, and the infrastructure cost is high.

Method used

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  • Construction method of multi-pond system for controlling agricultural non-point source pollution
  • Construction method of multi-pond system for controlling agricultural non-point source pollution
  • Construction method of multi-pond system for controlling agricultural non-point source pollution

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Embodiment

[0128] Select the Erhai Lake area, construct multi-pond system by the method of the present invention:

[0129] S1: Determine the total storage capacity: Calculate the target interception rate and the reduced amount of water to be lifted in the Erhai Lake area, and draw the relationship between the total storage capacity and the target interception rate and the reduced amount of water to be lifted ( image 3 ), and determine the total storage capacity according to the relationship diagram; from image 3 It can be seen that from 1 million m 3 ~6 million m 3 When increasing, every increase of 1 million m 3 Storage capacity, interception rate increased by 5% to 10%, from 6 million m 3 ~12 million m 3 Every increase of 1 million m 3 Storage capacity, interception rate only increased by 1% to 2%. So choose 6 million m 3 Storage capacity is the best.

[0130] S2: Determine the zone storage capacity: Divide the Erhai area into 9 zones by town, and calculate the ratio of the s...

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Abstract

The invention discloses a construction method of a multi-pond system for controlling agricultural non-point source pollution. The multi-pond system is constructed in tropical and subtropical zones. The multi-pond system comprises a plurality of farmland water purifying pond units. Each farmland water purifying pond unit comprises farmland, a water quality purifying pond and a pump station. The construction method specifically comprises the steps that S1, the total storage capacity is determined; S2, the subarea storage capacities are determined; S3, multi-pond system bodies in subareas are constructed; and S4, the subareas communicate with one another to form the multi-pond system. The construction method has the advantages that water storage and purification in rainy seasons are achieved, the lift irrigation amount in dry seasons is reduced, and the farmland return water is purified.

Description

technical field [0001] The invention belongs to the technical field of environmental treatment, and in particular relates to a method for constructing a multi-pond system for controlling agricultural non-point source pollution. Background technique [0002] There are a large number of farmlands in the subtropics and tropics in the world. Because the climate in these areas is very suitable for the growth of crops, human activities are becoming more and more frequent. With the increase of population and economic pressure in the basin, agricultural non-point source pollution in these areas is becoming more and more serious, which makes water bodies pollution is also increasing. Farmland return water and rainwater runoff are the main ways to bring agricultural non-point source pollution into water bodies. Therefore, researching and formulating effective non-point source sewage interception measures to reduce agricultural non-point source pollutants entering water bodies has beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/00C02F3/32
CPCC02F3/327C02F2301/08E02B3/00
Inventor 付国楷钟科王宇飞陈衍东张绍博
Owner 重庆大方生态环境治理股份有限公司
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