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Integrated device for rural dispersive sewage treatment

A kind of sewage treatment and decentralized technology, applied in the field of environmental engineering, can solve the problems such as the difficulty of centralized sewage treatment and purification, and achieve the effects of guaranteeing sewage purification effect, optimizing hydraulic conditions and purification effect, and saving floor space

Inactive Publication Date: 2011-06-29
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the limitations of economic and technical conditions in rural areas, it is difficult to centralize sewage treatment or use complex processes to purify

Method used

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  • Integrated device for rural dispersive sewage treatment
  • Integrated device for rural dispersive sewage treatment
  • Integrated device for rural dispersive sewage treatment

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example 1

[0020] In a rural area in the north, limited by economic conditions, it is not suitable to build a sewage treatment plant and lay sewage collection pipe network in the village. Therefore, it is planned to equip each household with a set of the device of the present invention, so that domestic sewage can be discharged up to standard after treatment. There are 4-5 residents per household in this rural area, and the per capita domestic water consumption is about 76 liters per day. Considering the coefficient of flow variation, the design is based on the sewage production of two households of 0.5 tons per day. The application process is as follows:

[0021] 1) The size is determined. According to the flow rate, adjust the size of each unit of the integrated device. The diameters of the vertical flow sedimentation tank, the biological contact oxidation tank and the compound vertical flow constructed wetland are respectively 20cm, 50cm and 100cm, and the height is 100cm.

[0022]...

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Abstract

The invention relates to an integrated device for rural dispersive sewage treatment. Based on the characteristics of disperse distribution, large water quality difference, large water quantity change, irregular discharge and the like of rural sewage, the invention develops a sewage treatment process and equipment for wide rural areas in China, which is convenient to manage and operate and has the advantages of low operating energy consumption and fine treatment effect. The invention is characterized in that a settling pond technology, a biologic contact oxidation pond technology and a compound vertical underflow artificial wetland technology are combined into a technology system, and physical, chemical, biological and ecological processing units are combined, thereby effectively purifying rural disperse sewage. After structural and technological optimization, the process can be formed into an integrated device so as to meet the requirements for practical application. The invention has the characteristics of fine pollutant purifying effect, flexible use and installation and the like, and is convenient to operate and manage.

Description

Technical field: [0001] The invention relates to a decentralized sewage purification treatment process applicable to vast rural areas, and an integrated device based on the process, which belongs to the technical field of environmental engineering. Background technique: [0002] Rural sewage mainly includes domestic sewage, fecal sewage discharged from toilets, courtyard sewage (rain) water, poultry and livestock pen sewage, poultry and livestock feces, etc. The sewage directly enters the surrounding environment, causing serious "dirty and disorderly" phenomena, both in villages and towns. It is an important cause of water pollution and eutrophication, and is also a potential source of infectious diseases. [0003] According to the relevant report of the Ministry of Construction, the total annual discharge of rural domestic sewage in the country is about 10.82 billion tons, mainly distributed in the densely populated eastern and central regions. At present, more than half o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32C02F3/34
CPCY02W10/10
Inventor 单保庆胡春明
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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