Separator suitable for removing silt from activated sludge of sewage treatment plant

A technology of activated sludge and separator, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of accelerating equipment wear, affecting the normal operation of sewage treatment plants, affecting the effect of sewage treatment, etc., to improve rotation Angular velocity, beneficial to separation, and the effect of enhancing the scope of application

Inactive Publication Date: 2013-06-05
CHONGQING UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Obviously, this situation not only affects the effect of sewage treatment, but also the accumulation of sludge and silt will accelerate the wear and tear of equipment and affect the normal operation of sewage treatment plants

Method used

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  • Separator suitable for removing silt from activated sludge of sewage treatment plant
  • Separator suitable for removing silt from activated sludge of sewage treatment plant
  • Separator suitable for removing silt from activated sludge of sewage treatment plant

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Embodiment Construction

[0030] The structure of the present invention is described in detail below in conjunction with accompanying drawing:

[0031] see figure 1 , This separator is composed of two parts: pretreatment area 1 and core separation area 2. The activated sludge is input from the mud inlet pipe 11 of the pretreatment area, and the mud outlet pipe 12 of the pretreatment area is connected to the feed port 21 of the core separation area through pipelines, and the separated silt is discharged from the bottom outflow sand port 22, and the activated sludge The mud is discharged from the overflow mud outlet 23. A valve 3 and a pump 4 are arranged on the pipeline, a backwash water outlet A is arranged before the pretreatment area 1, and a backwash water inlet B is arranged behind.

[0032] see figure 2 , the pretreatment 1 is barrel-shaped, and a screen 13 is arranged horizontally inside it to intercept hair, grass blades and large particles in the sludge. 12 is a mud pipe, and 11 is a mud ...

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Abstract

The invention provides a separator suitable for removing slit from activated sludge of a sewage treatment plant, which aims to solve the problem of influences of the sewage treatment plant on a sewage treatment system. In the separator, the separation and the flow split of organic matters and the silt in the sludge are realized on the basis of a rotational flow separation technique principle according to density differences and granularity differences of the activated sludge and the silt in the sewage treatment plant. The separator provided by the invention consists of two parts, namely a pretreatment region and a core separation region, wherein the pretreatment region is barrel-shaped, consists of a screen and a circular cylinder shell and is mainly used for intercepting hairs, grass blades and large-grain substances in the sludge; the core separation region consists of a cylindrical structure and a conical structure; the top end of the core separation region is provided with an adjustable overflow sludge outlet, the middle part is provided with a cylindrical barrel body, the lower part is provided with a conical separation area, and the bottom end is provided with an adjustable bottom flow sand outlet; and a material inlet is in tangential connection with the cylindrical barrel. The separator has the advantages of small occupied area, high separation efficiency and the like and is easy and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a separator suitable for removing silt in activated sludge of a sewage treatment plant. Background technique [0002] In recent years, with the rapid development of society, the amount of urban sewage is also increasing day by day, and due to the society's high attention to environmental protection, the number of sewage plants is also increasing rapidly, and sludge as a by-product of sewage plants is also inevitable. Substantial growth. How to economically, effectively and safely treat and dispose of the large amount of sludge produced by these sewage plants has become an urgent problem to be solved in the field of sewage treatment in our country. Moreover, this problem is more prominent in large and medium-sized cities and economically developed areas with a high level of urbanization, which has restricted the sustainable development of social economy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B5/32
Inventor 吉芳英胡学斌宗述安徐璇晏鹏何小玲陆磊张轩
Owner CHONGQING UNIV
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