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Water quality in-situ purification method in river estuary

An in-situ, water-quality technology, applied in the field of volume purification, can solve problems such as reducing pollution load

Inactive Publication Date: 2009-10-07
云南省环境科学研究院(中国昆明高原湖泊国际研究中心)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the existing water pollution control technology in the estuary area, and provide a kind of water quality purification facility in which all parts are built at the intersection of rivers and rivers and lakes. In-Situ Water Purification Method in Estuary Area of ​​Lake Pollution Load

Method used

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Examples

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Effect test

Embodiment 1

[0021] An in-situ purification method for water quality in an estuary area has good purification effect and can greatly reduce the pollution load entering lakes.

[0022] The in-situ purification method for water quality in the estuary area of ​​the present invention is to set up a sedimentation pond 1, an aeration oxidation zone 2, a facultative pond 3 and a floating pond in sequence along the direction of the river flowing into the lake in the estuary area at the bell mouth where the river course and the river lake meet. Island biological decontamination zone 4, the method is:

[0023] a. The upstream polluted river water entering the lake first enters the sedimentation pond, and in the sedimentation pond 1, it undergoes settlement, anaerobic decomposition, and plant absorption;

[0024] b. The river water after sedimentation flows into the aeration oxidation zone 2 sequentially to increase the oxygen content;

[0025] c. The river water flowing through the aeration oxidati...

Embodiment 2

[0033] An in-situ water purification method in an estuary area. The floating island uses light, durable, and non-polluting materials as a floating carrier, and is made into a 4×2m rectangular surface covered with 8-15cm of soil to form a floating island matrix. Emergent plants are directly planted on the substrate, the planting density is 0.5m×0.5m / clump, 2-4 plants per clump, the plant height is 0.4-0.6m, and the rest are the same as in Example 1.

Embodiment 3

[0035] An in-situ purification method for water quality in an estuary area. The floating island uses light, durable, and non-polluting materials as a floating carrier, and is made into a 6×3m rectangular surface covered with 8-15cm of soil to form a floating island matrix. Emergent plants are directly planted on the substrate, the planting density is 0.4m×0.4m / cluster, 2-4 plants per clump, the plant height is 0.4-0.6m, and the rest are the same as in Example 1.

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Abstract

A water quality in-situ purification method in river estuary relates to a water quality purification method in river estuary, especially relates to river estuary of convergence of lakes and rivers. A deposition pond, a aeration oxidation zone, a facultative pond and a floating island biological purification zone are disposed along rivers flowing into the lake direction in turns in river estuary of the horn-mouth shape region where watercourse crossing rivers and lakes, the method is: a, upstream polluted river water flows into the deposition pond for sedimentation, anaerobic decomposition and plant absorption; b, deposited river water flows into the aeration oxidation zone in order for increasing oxygen content; c, then the river water flows from the aeration oxidation zone into the facultative pond for degradation; d, degraded river water flows into the floating island biological purification zone at last, then the polluted water flows into lake by purification treatment. The invention uses in-situ purification method to process river water, no occupation of watercourse side land, resolving problem of rare land resource in river estuary and difficult to build water quality purification establishment. Key point of the invention provided water quality purification is intensifying absorption of natural hydrophyte and metabolism of microorganism for degrading pollutant in water, the water quality purification effect is obvious and brings no secondary pollution.

Description

technical field [0001] The invention relates to a method for purifying water quality in an estuary area, in particular to a method for purifying the estuary area where lakes and rivers meet, which can reduce the amount of pollutants brought into lakes by rivers. Background technique [0002] The eutrophication of lakes is one of the major environmental problems to be solved urgently. According to the national "Eleventh Five-Year" environmental protection plan, the treatment of "three rivers and three lakes" is still the focus of water pollution prevention and control. The eutrophication of lakes is not unique to China, but an environmental problem affecting the whole world. Scientists have studied a large number of methods to control lake eutrophication, and some methods have achieved good results in different stages of lake eutrophication control. [0003] However, the lake is not a single, isolated water environment, but a complex water basin system composed of many rive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F3/32C02F3/30
Inventor 杨逢乐李立雄贺彬金竹静
Owner 云南省环境科学研究院(中国昆明高原湖泊国际研究中心)
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