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Biological treatment process for surface water with duckweeds

A biological treatment and surface water technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as reducing the growth of duckweed, achieve elimination of large-scale aggregation, high promotion effect of value

Inactive Publication Date: 2012-10-24
施怀荣
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Problems solved by technology

[0004] Aiming at the problem of massive proliferation of duckweed, the purpose of the present invention is mainly to provide a safe, effective and non-secondary pollution, which can not only control and reduce the growth of duckweed, but also improve the water quality of the water body and gradually restore the ecological system of the water body. Governance new technology

Method used

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Embodiment Construction

[0019] The present invention is a bio-ecological restoration and treatment process for surface water outbreak duckweed mass proliferation. In the treatment process, the artificial wetland with the bank revetment of the river, and the anaerobic biochemical pool set at the sewage outlet of the river, and the outlet of the anaerobic biochemical pool Leading to the constructed wetland, spraying equipment is set at the junction of the constructed wetland and the river channel for adding biological agents to the river channel and the constructed wetland, and at the same time, adult ducks are released in the water area to be treated.

[0020] When the number of duckweeds is large, organize manpower to manually salvage the dead corner areas, and at the same time introduce adult ducks according to the ratio of 150 square duckweeds to stock one duck. After controlling the initial breeding of duckweeds within 15 days, start planting red water chestnut, water Turtle and other aquatic plant...

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Abstract

A biological treatment process for surface water with duckweeds is characterized by comprising a constructed wetland and an anaerobic biochemical pond, the constructed wetland is arranged on a river channel revetment, the anaerobic biochemical pond is arranged at the position of a drain outlet of a river channel, an outlet of the anaerobic biochemical pond leads to the constructed wetland, and a mist spray device is arranged at the position of the junction of the constructed wetland and the river channel and used for casting biological agents into the river channel and the constructed wetland and breeding mature ducks in a water area to be treated. The biological treatment process has high popularization values in treatment and maintenance of water bodies with a large amount of proliferated and gathered duckweeds.

Description

technical field [0001] The invention relates to a bio-ecological restoration and treatment process for large-scale proliferation of duckweed in rivers, lakes and other surface waters, especially for serious endogenous pollution, continuous release of pollutants in sediment to water bodies or flow rate and water renewal rate The water body in which duckweed blooms in large numbers in low surface water (the sum of the water surface area covered by duckweed exceeds 50% of the water area). Background technique [0002] The water bodies in which duckweed proliferates in large quantities are generally more likely to occur in two types of water bodies: one is due to the continuous discharge of long-term municipal sewage or rainwater into the surface runoff that brings more pollutants, and these pollutants in the water body The continuous enrichment forms the endogenous pollution of the water body - sediment. After the exogenous pollution has been controlled to a certain extent (th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/32C02F3/34C02F3/00
CPCY02W10/10
Inventor 施怀荣刘涛
Owner 施怀荣
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