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Small-town sewage pretreatment integrated device and method

A technology for sewage pretreatment and small towns, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The effect of smooth mud, shortened process and reduced floor space

Inactive Publication Date: 2011-07-13
CHONGQING UNIV
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Problems solved by technology

[0007] Aiming at the problems of long conventional pretreatment process for small-volume sewage in small towns, high investment, complicated management, and poor water discharge effect, the present invention develops an integrated equipment for sewage pretreatment in small towns. Optimized combination of plate flocculation tank, upward flow two-stage inclined plate sedimentation tank, sand storage tank and mud storage tank, simplifying the process flow, saving investment, reducing land occupation, simple operation and management, and enhanced treatment effect

Method used

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  • Small-town sewage pretreatment integrated device and method
  • Small-town sewage pretreatment integrated device and method

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Embodiment Construction

[0029] Refer to attached Figure 1~6 , the equipment is composed of a swirling grit chamber 4, two folded plate flocculation reaction tanks 12, two inclined plate sedimentation tanks 14, a sand storage tank 21, and a mud storage tank with more than 20 kinds of technological structures integrated into one. The swirling grit chamber 4 is located in the middle of the equipment. The folded plate flocculation reaction tank 12 and the inclined plate sedimentation tank 14 are arranged in sequence on both sides of the swirl grit chamber 4. The bottom side of the swirl grit chamber 4 is arranged in sequence from top to bottom for sand storage. Pond 21, storage mud pond 20.

[0030] The swirling flow grit chamber 4 is large at the top and small at the bottom, the upper part is the grit separation area 25, the lower part is the sand collection area 26, and the top is fixed with a working bridge 5 for fixing the agitator, which is composed of a stepless variable speed motor 6 and a transm...

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Abstract

The invention provides a small-town sewage pretreatment integrated device, aiming at the problems of the small-town low-water-quantity sewage conventional pretreatment process such as long process, high investment and complex management. The device optimizes and combines a rotational flow grit chamber, a folded plate flocculating tank, an upward flow two-section deflection inclined plate setting tank, a sand storage tank and a mud storage tank. By adopting the device of the invention, the process flow can be simplified, the investment can be saved, the floor area can be reduced, and the operation and management can be simple. The chemical agent can be added in the rotational flow grit chamber to perform folded plate flocculation-deflection inclined plate setting so as to enhance the removals of suspended matter and phosphorus.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an integrated sewage pretreatment equipment centered on a chemically enhanced primary treatment process. It is especially suitable for areas with small water volume, tight land use, low management level and on-site treatment to meet discharge standards, such as small mountain towns, independent living quarters, remote military garrisons, etc. It is especially suitable for the treatment of domestic sewage in small mountain towns. Background technique [0002] At present, there are mainly four types of grit chambers: flat flow grit chamber, aerated grit chamber, vertical flow grit chamber, and swirl type grit chamber. The cyclone grit chamber is widely used due to its advantages of low land occupation, high sand removal efficiency, good operating environment, and reliable equipment operation. [0003] The flocculation tank mainly has four forms: clapboard floc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 何强梁建军柴宏祥艾海男刘明祥陈雁玲李家杰
Owner CHONGQING UNIV
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