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Ecological dam device for aquaculture pollution control and ecological restoration

An aquaculture and pollution control technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, application and other directions, can solve problems such as pollution, achieve the effect of increasing aquaculture capacity and environmental capacity, and improving the utilization rate of bait

Active Publication Date: 2014-04-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the current aquaculture pollution problem, and provides an ecological dam device for aquaculture pollution control and ecological restoration functions

Method used

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  • Ecological dam device for aquaculture pollution control and ecological restoration
  • Ecological dam device for aquaculture pollution control and ecological restoration
  • Ecological dam device for aquaculture pollution control and ecological restoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 2 As shown, the ecological dam controls the pollution of a hairy crab breeding.

[0024] Construct (seine) breeding area with a length of 20 meters and a width of 10 meters. Bamboo stakes are set up at intervals of 1.5 meters, 1 meter above the water surface, a seine is laid, and ground cages are set at the bottom.

[0025] Build an ecological dam unit around the breeding area. The filler floating bed unit is 2 meters long and 1 meter wide. The length of the fixed elastic filler is 1.5 meters. The floating plate of the plant floating bed unit is 1 m long and 0.5 m wide. Float connection;

[0026] In the seine breeding area, 36 ecological dam units are connected to each other to form a rectangular dam. The outer area of ​​the ecological dam is 20 meters long and 10 meters wide. The water area inside the dam is 16 meters long and 6 meters wide. 4 each.

[0027] Commercial crops such as water spinach and water celery are planted on the floating bed.

[...

Embodiment 2

[0031] Such as image 3 As shown, the ecological restoration of an aquaculture polluted water body by the ecological dam.

[0032] The water depth of a hairy crab breeding lake was 1.5 meters. After long-term breeding, the water quality dropped to Class V water, the transparency was 60cm, a large number of submerged plants died, and the water ecosystem deteriorated;

[0033] Build a seine ecological restoration area with a length of 20 meters and a width of 10 meters. Bamboo stakes are set up at intervals of 1.5 meters, 1 meter above the water surface, and a fence is laid from the bottom of the lake to the bamboo stakes;

[0034] Construct an ecological dam unit, the floating bed is 2 meters long, 1 meter wide, and the fixed filler is 1.8 meters long; 36 ecological dam units are connected to each other to form a rectangular dam. Meters, 6 meters wide; no more bait in the ecological dam area.

[0035] The following 5 kinds of aquatic plants were selected for the floating bed pl...

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Abstract

The invention relates to an ecological dam device for aquaculture pollution control and ecological restoration. An ecological dam is composed of basic composition units of a packing floating bed and a plant floating bed, the packing floating bed is formed by a floating bed body, packing and a fixing net, and the plant floating bed is arranged on the internal water surface of the packing floating bed. A plurality of unit structures are interconnected to form a box dam which is fixed. The ecological dam is constructed around an aquaculture zone, aquaculture contaminants in the dam are decomposed and converted through microorganism when passing through the ecological dam, and plant roots in the floating bed body absorb nitrogen and phosphorus nutrients, so that the purpose of contamination control is achieved; meanwhile, materials are recycled through food chains formed by rich ecological systems in the ecological dam, so that bait utilization rate can be increased. The ecological dam constructed in a contaminated water body can have the ecological system of the water body in the dam restored through the ecological restoration. Compared with the prior art, the ecological dam device has the advantages that aquaculture capacity and environment capacity of aquaculture can be improved, and dual functions of resource development and utilization and ecological environmental protection can be realized.

Description

technical field [0001] The invention relates to a device in the technical field of environmental protection, in particular to an ecological dam device used for aquaculture pollution control and ecological restoration. Background technique [0002] my country is a big aquaculture country, and its aquaculture production accounts for about 70% of the world's total aquaculture production, and more than 90% of the production comes from ponds, shallow seas, lakes, reservoirs and other waters. Shallow water lakes are the main types of lakes in the eastern coastal areas of my country and the middle and lower reaches of the Yangtze River. They are also the main water resources for natural freshwater aquaculture. They are mainly fish, and have developed into a variety of famous, special and high-quality new products of fish, shrimp and shellfish. However, in recent years, eutrophication of shallow lakes has occurred frequently, and one of the main reasons is aquaculture pollution. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/02C02F3/32C02F3/34
CPCY02P60/21Y02W10/10
Inventor 张振家李春杰刘志明
Owner SHANGHAI JIAO TONG UNIV
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