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Urban black-odorous sewage treatment system and technology

A sewage treatment system, black and odor technology, applied in water/sewage treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc.

Inactive Publication Date: 2016-10-12
尚川(北京)水务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide an urban black and odorous sewage treatment system. The urban black and odorous sewage treatment system provided by this application can solve the problem of urban black and odorous sewage and improve the quality of effluent water

Method used

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  • Urban black-odorous sewage treatment system and technology
  • Urban black-odorous sewage treatment system and technology
  • Urban black-odorous sewage treatment system and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In Guantou Village, Beijing, the black and odorous water body was selected for engineering application, and the sewage was treated according to the following steps, and finally discharged up to the standard.

[0049] Step 1: Put the black and odorous sewage into the first carbon separation device with a filter belt of 5 μm and a filtration rate of 0.5 m / s for treatment, wherein more than 95% of suspended solids in the black and odorous sewage are removed, and the dissolved oxygen concentration is 9 mg / s L's first black and smelly sewage;

[0050] Step 2: Enter the first black and odorous sewage into the high-concentration activated sludge biological tank for dual-sludge active treatment for 1 hour to obtain the second black and odorous sewage with a dissolved oxygen concentration of 0.5-2mg / L, dual-sludge active treatment process The sludge concentration is 30000mg / L, the pool is filled with filler, and the filling rate of the filler is 30%;

[0051] Step 3: Put the se...

Embodiment 2

[0057] Step 1: Black and odorous sewage enters the first carbon separation device with a filter belt of 100 μm and a filtration rate of 3.5m / s for treatment, wherein more than 60% of suspended solids in the black and odorous sludge are removed, and the dissolved oxygen concentration is 3mg / L The first black and smelly sewage;

[0058] Step 2: Enter the first black and odorous sewage into the high-concentration activated sludge biological tank for dual sludge active treatment for 6 hours to obtain the second black and odorous sewage with a dissolved oxygen concentration of 0.5-2mg / L, dual sludge active treatment process The sludge concentration is 6000mg / L, the pool is filled with filler, and the filling rate of the filler is 70%;

[0059] Step 3: Put the second black and odorous sewage into the filter belt of 50 μm, and the second carbon separation device with a filtration rate of 0.3m / s for preliminary mud-water separation, and the obtained activated sludge is completely disc...

Embodiment 3

[0065] Step 1: Put the black and odorous sewage into the first carbon separation device with a filter belt of 50 μm and a filtration rate of 2 m / s for treatment, wherein more than 70% of the suspended solids in the black and odorous sewage are removed, and the dissolved oxygen concentration is 5 mg / L The first black and smelly sewage;

[0066] Step 2: Enter the first black and odorous sewage into the high-concentration activated sludge biological tank for dual sludge active treatment for 3 hours to obtain the second black and odorous sewage with a dissolved oxygen concentration of 0.5-2 mg / L, dual sludge active treatment process The sludge concentration is 7500mg / L, the tank is filled with filler, and the filling rate of the filler is 50%;

[0067] Step 3: Put the second black and odorous sewage into the filter belt of 30 μm, and the second carbon separation device with a filtration rate of 2.5m / s for preliminary mud-water separation, and the obtained activated sludge is compl...

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Abstract

The invention provides an urban black-odorous sewage treatment system which comprises a first carbon separation device, an activated sludge biological tank, a second carbon separation device and an advanced treatment unit, wherein an exit of the first carbon separation device is connected with an entrance of the activated sludge biological tank; an exit of the activated sludge biological tank is connected with an entrance of the second carbon separation device; and an exit of the second carbon separation device is connected with an entrance of the advanced treatment unit. In the invention, since the first carbon separation device and the second carbon separation device are arranged in the black-odorous sewage treatment system, the suspended solids in the black-odorous sewage are removed first, and then mud-water separation of the black-odorous sewage is performed; and moreover, the dissolved oxygen of the black-odorous sewage is increased, and finally, the effluent quality is improved. The invention also provides an urban black-odorous sewage treatment technology.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an urban black and odorous sewage treatment system and an urban black and odorous sewage treatment process. Background technique [0002] The "Water Pollution Prevention and Control Action Plan" issued by the State Council put forward clear requirements for the treatment of black and odorous water bodies: by 2020, the black and odorous water bodies in the built-up areas of cities at the prefecture level and above in my country shall be controlled within 10%; by 2030, the urban built-up areas The black and odorous water bodies are generally eliminated. [0003] Black and odorous water bodies in urban areas not only bring extremely poor sensory experience to the masses, but also directly affect the lives and health of the masses. Therefore, for black and odorous sewage, it is imperative to recognize its causes and take effective control measures to eliminate black and odor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F3/00C02F1/444C02F2001/007
Inventor 张源凯查亦飞罗涛
Owner 尚川(北京)水务有限公司