New technique for efficiently performing natural ecological treatment on sewage in villages and towns and manually enhancing effects of removing nitrogen, phosphorus and lasting organic matters

A technology for ecological treatment, nitrogen and phosphorus removal, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Instability and other problems, to achieve the effect of alleviating blockage and improving effluent quality

Inactive Publication Date: 2012-03-28
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems of low removal effect, large floor area and unstable treatment effect of the existing village and town sewage technology, the present invention provides an ecological technology series process, which can not only effectively remove nitrogen, phosphorus, and persistent organic matter, but also reduce the cost low, eco-friendly

Method used

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  • New technique for efficiently performing natural ecological treatment on sewage in villages and towns and manually enhancing effects of removing nitrogen, phosphorus and lasting organic matters
  • New technique for efficiently performing natural ecological treatment on sewage in villages and towns and manually enhancing effects of removing nitrogen, phosphorus and lasting organic matters
  • New technique for efficiently performing natural ecological treatment on sewage in villages and towns and manually enhancing effects of removing nitrogen, phosphorus and lasting organic matters

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Embodiment Construction

[0011] In Figure 1, sewage purification biogas digesters, constructed wetlands and high-efficiency bacteria and algae ponds are connected in series through the water distribution area.

[0012] Applicable areas: areas where the groundwater temperature is kept above 5°C in winter.

[0013] Biogas digester design: the pool type can be rectangular or circular; pool capacity design: the total volume of biogas digesters applicable to every 20-30 households is 40-50m 3 ; The total pool volume applicable to every 50-60 households is 80-90m 3 ; The total pool volume applicable to every 100-120 households is 160-180m 3 . The specific length, width and height can be adjusted according to the site conditions.

[0014] Constructed wetland design

[0015]

[0016] Specific types of aquatic higher plants can be planted according to local suitable plants.

[0017] High-efficiency bacteria pond design: rectangular or oval, aspect ratio > 3:1; pond depth 0.3-0.5m; water inlet end is eq...

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Abstract

The invention relates to a new technique for efficiently performing natural ecological treatment on sewage in villages and towns and manually enhancing effects of removing nitrogen, phosphorus and lasting organic matters. A sewage methane tank is utilized to degrade granular pollutants in the sewage, thereby greatly relieving the blocking problem of an artificial wet land. The artificial wet land and an efficient bacillus-algae pond are used for subsequent treatment, thereby greatly improving the quality of an effluent and achieving a long-acting stable effect.

Description

technical field [0001] The invention relates to an ecological sewage treatment technology in the field of environmental protection, in particular to a new technology for artificially enhanced nitrogen and phosphorus removal and persistent organic matter removal for natural ecological treatment of high-efficiency village and town sewage. Background technique [0002] Environmental protection has always been a weak link in the development of villages and towns. According to the main data bulletin of the second national agricultural census, only 19.4% of the 19,391 towns in the census have undergone centralized treatment of domestic sewage, while most of the other domestic sewage and industrial wastewater directly discharged into water bodies without any treatment. Compared with big cities, villages and towns have poor awareness of environmental protection and small economic strength, so it is difficult to invest a lot of money in environmental protection and ecological environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/28C02F3/34
Inventor 郑蕾丁爱中豆俊峰张意
Owner BEIJING NORMAL UNIVERSITY
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