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Integrated ecology renovation method for extratropical eutrophication marine site

A technology of eutrophication and ecological restoration, applied in chemical instruments and methods, botanical equipment and methods, seawater treatment, etc., can solve problems such as lack, achieve low cost, fast growth, and enhance the effect of self-purification ability

Inactive Publication Date: 2007-07-04
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
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Problems solved by technology

However, for the vast eutrophic sea areas in northern my country, there is still a lack of technical reports on the use of ecological methods for eutrophication control.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Using the raft culture technology of shellfish and algae commonly used in the prior art, in the eutrophic sea area of ​​Qingdao Jiaozhou Bay (the sea area near the estuary of the Haibo River), the eutrophication environment restoration test was carried out from 2003 to 2004 in the sea area. The water temperature is 2-27°C. The cultivation mode of the macroalgae is as follows. From the beginning of May, 2003, Gracilaria lemaneiformis was cultivated. The asparagus used comes from the coast of Kamata, Fujian. Cultivate asparagus by clamping seedlings hanging method, each rope clips 1 meter of seedlings, 16-18 clusters of seedlings, each cluster of seedlings is 13-15 cm long, and 0.1 kg of seedlings per rope. The asparagus is 1 to 2 meters above the water surface, and it falls and falls. The distance between the rafts is 4 meters. 400 ropes of asparagus are cultivated per mu. Started to cultivate 2 mu, and by the beginning of July, the planting scale was expanded to 10 ...

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Abstract

The invention relates to a technique for treating polluted environment, which in detail is a comprehensive ecological restore method especially for etrophication waters in temperate zone in part of China. It combines the cultivation of large scale of algae and culture filter feeding animal of in etrophication waters to build a biological filter device and then restore polluted environment. The invention makes full use of ecological function of large scale algae absorbing dissolved nitrogen and phosphorus in large amount and ecological function of filter feeding animal filtering suspended particle and nutrient matter from water, to restore etrophication waters. The applied algae and filter feeding animal are important economical varieties, thus they can also bring economical benefit. The invention is characterized by both ecological benefit and economical benefit and suitability for etrophication waters in temperate zone in north of China.

Description

technical field [0001] The invention relates to the treatment technology of the polluted environment, in particular to a comprehensive ecological restoration method aimed at the eutrophic sea area in the northern temperate zone of our country. Background technique [0002] With the development of human urbanization and industrial and agricultural production, a large amount of sewage and surface runoff rich in nitrogen and phosphorus are discharged into seawater, resulting in eutrophication of coastal waters. Nutrient pollution is an important form of marine pollution and has become a global concern. The most familiar consequence of excessive nutrient loading in coastal waters is the stimulation of phytoplankton algae, causing phytoplankton blooms and even red tides. The hazards of red tides are well known. [0003] In order to reduce the pollution of coastal ecosystems caused by human activities, the control and treatment of pollution sources are the most basic measures th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32A01G33/00C02F103/08
CPCY02A40/80Y02A40/81
Inventor 周毅杨红生王晓宇刘鹰周兴许强张涛张福绥
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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