Ventilation and reaeration system with no power for treating land of sewage

A land treatment and sewage technology, applied in water/sewage treatment, water/sludge/sewage treatment, energy and wastewater treatment, etc., can solve the problem of difficulty in reoxygenation of soil percolation layer, and improve mass transfer efficiency and reoxygenation. Effect, convenient construction, strengthen the effect of natural ventilation

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0010] The purpose of the present invention is to solve the problem of difficult reoxygenation of the soil percolation laye

Method used

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  • Ventilation and reaeration system with no power for treating land of sewage

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Embodiment Construction

[0018] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] The non-powered ventilation reoxygenation system of the present invention is mainly composed of two parts, and its cross-sectional structure is arranged as follows: figure 1 shown. One part is the perforated ventilation pipe 3 coated with the polymer hydrophobic breathable membrane 4 in the sewage treatment system; the other part is an exhaust fan 1 installed on the surface of the land treatment system; in addition, there is a connection between the perforated ventilation pipe 3 and the exhaust fan 1 The airway 2. The present invention is applied to a sewage land treatment device comprising a water distribution pipe 5 , a soil infiltration layer 6 and a water collection pipe 7 .

[0020] The specific structure of the present invention is: in the soil infiltration layer 6 between the water distribution pipe 5 and the water collection p...

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Abstract

The method is install a perforated gas pipe in soil infiltration layer between water distributing pipe and water collecting pipe installed at ground with sewage, to cover high polymer hydrophobic poromeric film on outside surface of the perforated gas pipe to form a gas pipe which gas can escape but water cant, air pipe connected to ends of the gas pipe is connected with pumping fan on the earth's surface and direct interliked to air. 'Gas-liquid-gas-solid' mass transfer way is changed to 'gas-solid' by this invention to increase mass transfer efficiency and oxide effect from air to soil.

Description

technical field [0001] The invention relates to a non-powered ventilation and reoxygenation system for sewage land treatment, which utilizes natural wind energy to automatically replace and circulate the air in the ventilation pipe of the treatment system, and utilizes the polymer hydrophobic gas-permeable membrane coated on the outer surface of the perforated ventilation pipe, Improve the mass transfer efficiency and reoxygenation effect from air to soil. The invention belongs to the technical field of environmental engineering sewage treatment. technical background [0002] With the rapid development of my country's economy, water eutrophication caused by non-point source pollution in the Taihu Lake Basin, the Three Gorges Basin, and the Bohai Bay Basin has become increasingly severe, and has gradually become a social problem that affects economic development. Pay attention to. The "Ninth Five-Year" and "Tenth Five-Year" national "863" plans have invested a lot of money i...

Claims

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Application Information

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IPC IPC(8): C02F1/00
CPCY02W10/33
Inventor 胡湛波孔海南郑向勇
Owner SHANGHAI JIAO TONG UNIV
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