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Conch, mussel, fish and grass three-dimensional restoration technology for ecological restoration of natural water

A technology for ecological restoration and natural water bodies. It is applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. It can solve problems such as long-term effects, increased input costs, and easy washing away of aquatic animals. , to achieve the effect of obvious effect and strong stability

Active Publication Date: 2020-12-18
安徽水韵环保股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The stability of the water ecosystem constructed by the above method is average, mainly relying on the absorption of aquatic plants to purify the water quality, and the effect is relatively long. At the same time, once encountering a large water flow or when the plants wither in winter, the ecological restoration effect will be greatly reduced
At the same time, these aquatic animals are easily washed away with the water flow, and then need to be replenished again, which virtually increases the input cost

Method used

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  • Conch, mussel, fish and grass three-dimensional restoration technology for ecological restoration of natural water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment is a three-dimensional restoration technology for the ecological restoration of natural water bodies. A river section in Wuhu City has a total length of 1 km and a water area of ​​10,000 square meters. Conventional methods such as sewage interception, aeration, and oxygen enhancement have been adopted River restoration technology, but the water ecosystem has not been constructed, and its water quality indicators have remained as follows for a long time: total nitrogen is about 8mg / L, COD Mn About 25mg / L, total phosphorus about 0.8mg / L.

[0045] The specific operation is as follows:

[0046] The river section with a length of 1 km is divided into 10 sections, which are alternately set up in order of snail grass symbiosis section and mussel symbiosis section; figure 1 shown

[0047] Among them, in each cycle, a total of about 160,000 plants are planted in each snail-weed symbiosis section, and about 5,000 kg of snails are put in, and about 5,000 g of mus...

Embodiment 2

[0055] This embodiment is a three-dimensional restoration technology for the ecological restoration of natural water bodies. A river section in Wuhu City has a total length of 2 km and a water area of ​​20,000 square meters. Conventional methods such as sewage interception, aeration and oxygen enhancement have been adopted in this river section. River restoration technology, but the water ecosystem has not been constructed, and its water quality indicators have remained as follows for a long time: total nitrogen is about 7mg / L, COD Mn About 17mg / L, total phosphorus about 0.5mg / L.

[0056] The specific operation is as follows:

[0057] The river section with a length of 2km is divided into 20 sections, which are alternately set up in order of snail grass symbiosis section and mussel symbiosis section;

[0058] Among them, in each cycle, a total of about 160,000 plants are planted in each snail-weed symbiosis section, and about 5,000 kg of snails are put in, and about 5,000 g o...

Embodiment 3

[0066] The present embodiment is a three-dimensional repair technology for the ecological restoration of natural water bodies. The only difference from Embodiment 1 is that the grass only uses submerged plants; emergent plants and floating leaf plants are not used;

[0067] A river section in Wuhu City has a total length of 0.5km and a water area of ​​5,000㎡; among them, total nitrogen is about 7mg / L, COD Mn About 23mg / L, total phosphorus about 1mg / L.

[0068] After 3 months of restoration, the water quality is as follows: total nitrogen is about 5.8mg / L, COD Mn It is about 16.38mg / L, and the total phosphorus is about 0.62mg / L; the modification effect is relatively ideal; but there is obvious algae growth, and it needs to be harvested once a month.

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Abstract

The invention relates to a conch, mussel, fish and grass three-dimensional restoration technology for ecological restoration of natural water, a river reach to be restored is averagely divided into nsections, and conch-grass symbiotic sections and mussel-fish symbiotic sections are sequentially and circularly established in the n sections. The conch, mussel, fish and grass three-dimensional restoration technology provided by the invention breaks through the common mode of grass planting and fish culture of traditional water ecology construction, applies the ecological system key roles of conchs and mussels in freshwater shellfish to restoration, and combines fish and aquatic plants. According to the basic principle, conchs, mussels, grass and fish form a three-dimensional ecological purification system, and the conchs, the mussels, the grass and the fish are matched with one another and inhibit one another. According to the method provided by the invention, once a perfect conch, mussel and grass three-dimensional ecological system is established, the stability is very high, the conchs and the mussels can keep a certain purification effect even in winter and when plants wither, artificial intervention is basically not needed in the later period, and the effect is very obvious.

Description

technical field [0001] The invention relates to a natural water body ecological restoration technology, in particular to a three-dimensional restoration technology for the ecological restoration of natural water bodies. Background technique [0002] With the rapid development of industrialization, the ecology of the water environment has deteriorated, and the urban water environment has carried out black and odorous water treatment, but the methods adopted are still relatively simple, mainly including sewage interception, internal source cleaning, aeration and oxygenation, running water circulation, ecological construction, etc. Especially in the part of water ecology construction, the methods are complicated and diverse. The most commonly used method is planting grass and raising fish, often relying on planting emergent plants, floating leaf plants, submerged plants, and then stocking filter-feeding fish to build an aquatic ecosystem. [0003] The stability of the water ec...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCC02F3/327
Inventor 占明飞袁红军宁军王伟舒凤月
Owner 安徽水韵环保股份有限公司