A combined treatment system of artificial wetland and plant pond for advanced treatment of tail water
A constructed wetland and advanced treatment technology, which is applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of high pollutant content in the effluent, and achieve no operating costs, Low management cost, improved effect of pollutant removal
Active Publication Date: 2016-11-23
FUDAN UNIV
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Problems solved by technology
[0005] In order to solve the problem of high pollutant content in the effluent of existing urban sewage treatment plants, to alleviate the continuous pressure of tail water on the water environment, and to overcome the shortcomings of existing sewage treatment technologies, the present invention provides a surface flow constructed wetland and The plant pond combined treatment system is used for the advanced treatment of tail water, which can effectively solve the problem of high pollutant content in the effluent of existing urban sewage treatment plants, relieve the continuous pressure of tail water on the water environment, and treat the effluent to meet the national urban sewage discharge Level A standard, while beautifying the surrounding landscape
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Embodiment 1
[0020] After a sewage treatment plant was built in the upstream of a water source in a city in Guizhou Province, the water quality of the water source was affected and the water quality declined. In order to protect the source of drinking water, a joint treatment system of surface flow artificial wetland and plant pond was adopted. Due to the terrain, an area of 100m× Constructed wetland of 100m, at the same time build a secondary plant pond, the area of the plant pond is 300m 2 、500m 2 .
[0021] 1. The surface flow artificial wetland includes a water supply system, an anti-seepage system, a medium system, plants, etc.; both the first-level plant pond and the second-level plant pond are planted with landscape plants; both ponds are planted with submerged plants and spruces. Aquatic plants, among them, the submerged plants selected for the first-level plant ponds are Heliconia spicaculata, and the submerged plants for the second-level plant ponds are Hydrilla verticillium...
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Abstract
The invention discloses a combined treatment system of an artificial wetland and a plant pond for advanced treatment of tail water. It includes a surface flow artificial wetland, a first-level plant pond and a second-level plant pond arranged in steps from top to bottom; between the surface flow artificial wetland and the first-level plant pond, and between the first-level plant pond and the second-level plant pond Water distribution water level regulators are set respectively; aquatic plants are planted in the surface flow artificial wetland, and water surface plants and shore plants are planted in the first-level plant pond and the second-level plant pond. The present invention fully utilizes the self-flow mode to operate, does not generate operating expenses, and has simple management and maintenance, and has high application value.
Description
technical field [0001] The invention belongs to the technical field of ecology and environmental protection, and in particular relates to a combined treatment system of an artificial wetland and a plant pond for advanced treatment of tail water. Background technique [0002] At present, most of the sewage treatment plants are implementing the second-level or first-level B discharge standards in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002). To achieve the first-level A discharge standards, it is generally necessary to increase the depth treatment process, which will greatly increase the cost of sewage treatment. Constructed wetland sewage treatment technology is a composite process combining natural purification and artificial treatment. It mainly uses the action of substrates, plants and microorganisms to purify sewage. It has the advantages of less investment, simple operation, and low maintenance and operation costs. It can not only...
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IPC IPC(8): C02F9/14
CPCC02F3/327
Inventor 张继彪黄威栾晓男郑正
Owner FUDAN UNIV