Method and apparatus for improving transparency of water body

A water body transparency and water body technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as the environmental impact of chemicals, improve transparency, low cost, and restore eutrophication. The effect of melting water

Inactive Publication Date: 2012-11-28
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, the addition of chemicals has a direct or indirect impact on the environment, and the floccul

Method used

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  • Method and apparatus for improving transparency of water body
  • Method and apparatus for improving transparency of water body
  • Method and apparatus for improving transparency of water body

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A river in Guangzhou was selected as the experimental river. The river is 4.8km long, 6-10m wide, with an average depth of about 1.5m and a transparency of about 30cm. The river has serious eutrophication problems, and diatom blooms often occur in spring; the water is turbid and lacks vigor and vitality.

[0039] The present invention's method for improving the transparency of the river specifically includes the following steps:

[0040] 1. The selected bivalve mollusk is triangular sail clam, the specification of hanging culture is 50~200 grams / piece, and the hanging culture density is 50~500 grams / m 3 .

[0041] 2. The length of the main net for hanging is 5m, the width of the main net is the same as that of the river, and it is suspended at 50cm underwater. Three rows of net pockets are evenly arranged on the main body net, each of which places a certain number of triangular sailfish, and the upper edge of the main net is tied with a float with a diameter of 10 cm....

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Abstract

The invention discloses a method and an apparatus for improving transparency of a water body. The method, which is a biological method, uses bivalvia to improve the transparency of the water body, and comprises the following steps: selecting the bivalvia species, stocking the bivalvia species, and replacing the bivalvia. The selected bivalvia is hyriopsis cumingii, the size of the suspended stocking hyriopsis cumingii is 50-200 g/ind, and the suspended stocking density is 50-500g/m3. The hyriopsis cumingii are replaced regularly when the size of the hyriopsis cumingii is over 500 g/ind with the hyriopsis cumingii having the size of 50-200 g/ind. By using the method of the invention, the recovery of submerged plants in an eutrophication water body can be promoted, the pollutant in the water body can be significantly reduced, the ecological balance of the water body can be promoted and the environmental capacity can be improved. And with simple and feasible operation and some economic benefit, the method and the apparatus can be applied in the restoration of water bodies such as lakes and rivers.

Description

technical field [0001] The invention relates to the field of ecological environment protection, in particular to a method and a device for improving the transparency of water body. Background technique [0002] In recent decades, with the rapid development of industrial and agricultural production and the continuous growth of population, the human demand for fresh water resources is increasing day by day. When human beings participate in large-scale social activities and economic activities, they directly discharge industrial wastewater and domestic sewage rich in nutrients into rivers, rivers, lakes and other water bodies, resulting in serious degradation of the structure and function of aquatic ecosystems. The resulting eutrophication problem has also become the most prominent ecological environment problem affecting the sustainable development of my country's current society. [0003] People have taken many measures in the treatment of eutrophication, such as dredging the...

Claims

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Application Information

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IPC IPC(8): C02F3/32A01K61/00
CPCY02A40/81
Inventor 郭亮吴世凯陈顺权
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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