Buried sewage ecological treatment system

An ecological treatment, buried technology, applied in biological water / sewage treatment, water / sludge / sewage treatment, energy and wastewater treatment, etc. question

Active Publication Date: 2014-06-18
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Rapid infiltration process, slow infiltration process, artificial wetland and other treatment technologies require a large area of ​​treatment site, which consumes valuable land resources; and the treatment site cannot be restored to its original appearance at the same time; it is easy to generate odor and breed mosquitoes to pollute the surrounding environment; Moreover, the process is greatly affected by the climate, and the treatment performance often drops greatly in winter; at the same time, these three processes have problems such as insufficient reoxygenation and insufficient carbon source during denitrification.
[0006] The shortcomings of the underground infiltration process currently used in China are: with the operation of the treatment system, the system is prone to clogging, and the oxygen supply of the soil infiltration layer is insufficient, resulting in a reduction in the activity of aerobic microorganisms that remove organic matter and nitrifying bacteria that perfor

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  • Buried sewage ecological treatment system

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Embodiment Construction

[0014] Such as figure 1As shown, a buried sewage ecological treatment system includes a relatively airtight box 1, in which a water distribution device 2, a filter material layer with large pores and high air permeability 3, a denitrification anaerobic layer 4, and a seepage filter layer 4 are arranged. Filter layer 5, drainage device 6 and water collection gravel layer 7, described macroporous highly gas-permeable filter material layer 3 is one or several combinations in slag, gravel, pottery, brick, and described box body 1 is made of cement It is made of concrete or glass fiber reinforced plastic or plastic; among them, the large-porous high-permeability filter material layer 3, the denitrification anaerobic layer 4, the percolation layer 5 and the water-receiving gravel layer 7 are laid in the box from top to bottom in sequence, and the top layer The large-porous highly air-permeable filter material layer 3 and the inner top surface of the box body 1 are arranged at inter...

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Abstract

The invention belongs to the technical field of sewage treatment of environmental engineering, and particularly relates to a device for sewage treatment. The technical scheme of the invention is as follows: a buried sewage ecological treatment system is characterized by comprising a relatively closed box body which is internally provided with a water distributing device, a macroporous high-permeability filter material layer, a denitrification anaerobic layer, a percolation layer, a drainage device and a water receiving gravel layer, wherein the macroporous high-permeability filter material layer, the denitrification anaerobic layer, the percolation layer and the water receiving gravel layer are sequentially paved in the box body from top to bottom. An air inlet is formed in a position corresponding to the macroporous high-permeability filter material layer of the box body located at the gap or on the box body. A sprinkler head of the water distributing device is arranged above the macroporous high-permeability filter material layer, and a water conveyer pipe of the drainage pipe is arranged below the percolation layer. By adopting the technical scheme, the invention provides a power-free novel buried sewage ecological treatment system which is efficiently rich in oxygen and realizes full and direct contact of sewage and air.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering sewage treatment, in particular to a device for sewage treatment. technical background [0002] With the rapid development of my country's economy, the situation of water pollution is becoming more and more serious, especially in areas such as the Huaihe River Basin, the Yangtze River Basin, Taihu Lake, Chaohu Lake and other areas where water eutrophication caused by water pollution occurs from time to time. "863 plans have invested a lot of money to develop non-point source pollution prevention and control technologies suitable for my country's national conditions. On the other hand, since my country's overall development level is still at a relatively low level, in cities, the infrastructure costs and operating costs of sewage plants are often a major problem restricting sewage treatment. In rural areas that account for the vast majority of my country's population, sewage Basica...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/34B01D53/02
CPCY02E50/30Y02W10/33Y02W10/37
Inventor 张业健赵敏郑向勇叶海仁程天行严立
Owner WENZHOU UNIVERSITY
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