Device and method for continuously and biologically treating urban sewage

A kind of urban sewage and biological treatment technology, applied in the field of water treatment, can solve the problems of secondary pollution, sludge not being properly treated and disposed, and achieve the effect of increasing the effective volume

Inactive Publication Date: 2012-07-04
吉林省禹泰环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the sewage in some places has been effectively treated, the sludge has not been properly treated and disposed of, causing secondary pollution

Method used

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  • Device and method for continuously and biologically treating urban sewage
  • Device and method for continuously and biologically treating urban sewage
  • Device and method for continuously and biologically treating urban sewage

Examples

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Embodiment Construction

[0024] Example 1. A city sewage treatment plant with a daily water treatment volume of 1*10 4 m 3 / d, influent COD=600mg / L; influent BOD=350mg / L, MLSS=3500mg / L, N S =0.2KgBOD 5 / (KgMLSS·d), the aeration volume is 4*10 3 m 3 Air.

[0025]The device of the present invention is composed of a grid 1, a grit chamber 2, a multi-bacteria reaction tank 3 and a sedimentation tank 4. The grid 1, the grit chamber 2, the multi-bacteria reaction tank 3 and the sedimentation tank 4 are connected in sequence, wherein the multi-bacteria The group reaction pool 3 is composed of a pool body 5, a cover plate 6, a guard plate 7 and an aeration diffusion device 10. The pool body 5 is a tank body, and the length of the pool body 5 is 25m; the left and right width is 5m, and the height is 5m. There is a water inlet 8, and the height of the water inlet 8 is 3 meters. The grit chamber 2 is connected to the water inlet 8, and the right side of the top of the pool body 5 is equipped with a cover pl...

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Abstract

The invention relates to a device and a method for continuously and biologically treating urban sewage, and belongs to the technical field of water treatment. The device consists of a grating, a desilting basin, a multi-flora reaction basin and a sedimentation basin which are connected in turn, wherein the multi-flora reaction basin consists of a basin body, a cover plate, a protecting plate and an aerated diffusion device; the right side of the top of the basin body is provided with the cover plate; a gap which is a free liquid surface is formed between the cover plate and the left side wallof the basin body; the free liquid surface is provided with the upward protecting plate; the rear side part of the top of the basin body is open to form a weir; and the aerated diffusion device is arranged at the bottom in the basin body along the length direction of the basin body. The method comprises the following steps of: pretreating the sewage by using the grating and the desilting basin, adding the sewage into the multi-flora reaction basin and performing anaerobic, anoxic and aerobic treatment simultaneously. The sewage treatment effect is good, infrastructural investment is small andoperating cost is low.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and relates to an urban sewage treatment device. The invention also relates to a method for treating sewage by using the treatment device. Background technique [0002] Water pollution and water shortage are one of the serious environmental problems facing our country. The direct discharge of a large amount of sewage not only destroys ecology, exacerbates water shortages, but also seriously endangers industrial and agricultural production and human health and safety. [0003] At present, the continuous flow treatment of urban sewage at home and abroad mainly adopts the activated sludge method, and the devices used are composed of grids, grit chambers, anaerobic reaction tanks, anoxic reaction tanks, aerobic reaction tanks and sedimentation tanks. Wherein the anaerobic reaction pool, the anoxic reaction pool and the aerobic reaction pool are square pool bodies, and the reaction pool has a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 边德军任庆凯田曦姜博周国东
Owner 吉林省禹泰环境工程有限公司
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