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Artificial wetland-biological regeneration integration enhancement denitrogenation and phosphorus removal treatment process

A technology of constructed wetlands and biological regeneration, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of secondary pollution, high cost, low removal effect, etc. The effect of low pollution load and long natural cycle

Inactive Publication Date: 2013-04-03
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

[0003] In order to overcome the problems of low removal effect, high cost and secondary pollution of the existing technology, the present invention provides an ecological technology series process, which can not only effectively remove nitrogen and phosphorus, but also has low cost and is eco-friendly

Method used

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  • Artificial wetland-biological regeneration integration enhancement denitrogenation and phosphorus removal treatment process
  • Artificial wetland-biological regeneration integration enhancement denitrogenation and phosphorus removal treatment process

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Embodiment Construction

[0009] exist figure 1 In , biosorption and constructed wetland are connected in series through the water distribution area. The biosorption filling matrix is ​​pebble layer from bottom to top, about 20cm in thickness; artificial soil, about 20cm in thickness, and biological filler layer, about 10cm in thickness, and its particle size is generally 2-4mm; artificial soil is composed of quartz sand, limestone According to the composition of 1:1; 2 layers of artificial soil, the thickness is about 40cm, the artificial soil is composed of quartz sand, ore, activated carbon and nutrients.

[0010] figure 2 Medium, plant reeds in artificial wetlands, with a density of 25-30 plants / m 2 , The biological filler is biological ceramsite with a particle size of 30-40mm; the artificial wetland filling matrix is ​​sandstone with a particle size of 30-50mm and a porosity of 35%-40%.

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Abstract

The present invention relates to an artificial wetland-biological regeneration integration enhancement denitrogenation and phosphorus removal treatment process. According to an ecology technology series connection process, plants are introduced into a sewage treatment system, and a multi-layer matrix is introduced to configure a biological adsorption layer to form a microorganism-plant-materialization effect integrated land ecosystem, wherein the system has a self-regulation mechanism and a comprehensive pollutant purification function, harmonization of rapid denitrogenation and phosphorus removal, and ecological purification is achieved, cost is low, and an eco-friendly characteristic is provided.

Description

technical field [0001] The invention relates to a sewage treatment technology in the field of environmental protection, in particular to an integrated enhanced nitrogen and phosphorus removal treatment process of artificial wetland and biological regeneration. Background technique [0002] At present, the intensification of environmental pollution and water eutrophication has forced more and more countries and regions to formulate strict nitrogen and phosphorus discharge standards, which has also made wastewater nitrogen and phosphorus removal technology a hot spot in the field of environmental protection. The commonly used nitrogen and phosphorus removal technologies include biological and chemical methods. Biotechnology mainly forms aerobic and anoxic alternating stages by controlling the oxygen input in the system to provide a good habitat for system denitrification and phosphorus removal bacteria. Through the action of such bacteria, nitrogen and phosphorus removal effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 郑蕾丁爱中孙宗健豆俊峰张意
Owner BEIJING NORMAL UNIVERSITY
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