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Integral treatment apparatus for urban sewage

A comprehensive treatment and urban sewage technology, applied in the direction of anaerobic digestion treatment, etc., can solve the problems of inability to remove nitrogen and phosphorus, achieve enhanced treatment effect, uniform water distribution, and ensure contact effect

Inactive Publication Date: 2007-11-14
HUNAN UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that: aiming at the technical problems existing in the prior art, the present invention provides a method that can adapt to low-concentration urban sewage, can effectively degrade COD, and can effectively solve the problem that anaerobic biological treatment cannot remove nitrogen and The shortcomings of phosphorus, so that the effluent COD, ammonia nitrogen and phosphorus can all meet the urban sewage treatment first-level discharge standard of urban sewage comprehensive treatment device

Method used

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  • Integral treatment apparatus for urban sewage
  • Integral treatment apparatus for urban sewage
  • Integral treatment apparatus for urban sewage

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] As shown in Figure 1, the urban sewage comprehensive treatment device of the present invention comprises water inlet tank 1, expanded granular sludge bed anaerobic reactor 2, adsorption column 4 and treatment water tank 5, wherein expanded granular sludge bed anaerobic reactor 2 The water inlet 21 at the bottom is connected to the water inlet tank 1 through a pipeline, and the water outlet 22 at the top of the expanded granular sludge bed anaerobic reactor 2 is connected to the treatment water tank 5 through a pipeline; the bottom of the expanded granular sludge bed anaerobic reactor 2 A reactor sieve plate is provided at the water inlet 21, and a three-phase separator 7 is provided at the water outlet 22 at the top of the expanded granular sludge bed anaerobic reactor 2, and a three-phase separator 7 is provided at the expanded granular sludge bed anae...

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Abstract

A comprehensive treating system for city sewage is composed of an admission water tank, a reactor with water inlet on its bottom, water outlet on its top, screen plate at said water inlet and three-phase separator at its water outlet, an adsorptive column with zeolite as its filler and the screen plates at its water inlet and outlet, and a treating water tank. Its advantage is high effect to remove COD, ammoniacal nitrogen and P.

Description

technical field [0001] The invention mainly relates to the field of environmental protection equipment, in particular to a comprehensive urban sewage treatment device. Background technique [0002] At present, compared with aerobic biological treatment technology, the advantages of anaerobic treatment are: (1) No oxygen supply is required, which saves operating costs; (2) The amount of sludge produced is 3 to 20 times less than that of aerobic process, and the sludge is easy to handle; (3) Less investment, easy maintenance, etc. Furthermore, the anaerobic process produces biogas, allowing the energy stored in the organic matter to be recovered. With the process of urbanization in China, the discharge of urban wastewater is increasing, and anaerobic reactors will also be widely used in the field of urban sewage treatment. [0003] Due to the lack of oxygen supply in anaerobic treatment, the ammonia nitrogen in the sewage cannot be converted into nitrate nitrogen and nitrite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
Inventor 郭亮李小明曾光明杨麒管慧玲
Owner HUNAN UNIV
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