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Method for treatment of wastewater by circular sedimentation tank with mechanical sludge discharge device

A sludge discharge device and a technology for treating wastewater, which are applied in the fields of sedimentation treatment, flocculation/sedimentation water/sewage treatment, sedimentation separation, etc., can solve the problems that are not conducive to the popularization and application of sedimentation tanks for advanced wastewater treatment, high effluent suspended solids, and high cost. , to achieve the effect of saving floor space, continuous and stable operation, and reducing siltation

Inactive Publication Date: 2020-03-06
山东环发科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The square sedimentation tank adopted by this method has high suspended solids in the effluent, a large area, and high cost, which is not conducive to the popularization and application of sedimentation tanks for advanced wastewater treatment.

Method used

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  • Method for treatment of wastewater by circular sedimentation tank with mechanical sludge discharge device
  • Method for treatment of wastewater by circular sedimentation tank with mechanical sludge discharge device
  • Method for treatment of wastewater by circular sedimentation tank with mechanical sludge discharge device

Examples

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Embodiment 1

[0032] A method for treating waste water using a circular sedimentation tank with a mechanical mud discharge device, the circular sedimentation tank with a mechanical mud discharge device includes a sedimentation tank main body 13, and the sedimentation tank main body 13 is provided with a mechanical mud discharge device device, the mechanical sludge removal device includes a mud scraper 6 located at the bottom of the sedimentation tank main body 13 and a motor 1 connected through a transmission shaft 3, and a reduction box 2 is also arranged below the motor 1; The part above the mud vessel 6 is also provided with a mud-water separation device, and the vertical distance between the mud-water separation device and the mud scraper 6 is 10000 mm; the mud-water separation device includes a support frame 5, and the support frame 5 is provided with a filler 4;

[0033] A water outlet 10 is arranged on the side wall of the main body 13 of the sedimentation tank, a drainage groove 11 ...

Embodiment 2

[0040] As described in Example 1, the difference is:

[0041] The filler 4 in the mud-water separation device is an inclined tube, the material is polypropylene, the inclination angle is set to 75°, and the vertical height of the filler 4 is 1500mm.

Embodiment 3

[0043] As described in Example 1, the difference is:

[0044] The filler 4 in the mud-water separation device is an inclined tube, the material is glass fiber reinforced plastic, the inclination angle is set to 60°, and the vertical height of the filler 4 is 200mm.

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Abstract

The invention relates to a method for treatment of wastewater by a circular sedimentation tank with a mechanical sludge discharge device. The method includes the steps of: letting to-be-treated wastewater enter a central cylinder through a water inlet pipe, distributing the to-be-treated wastewater to a sludge-water separation device through the central cylinder, completing sludge-water separationby filler in the sludge-water separation device, then converging clear water by a drainage groove into a water outlet groove, and performing discharging by a water outlet, letting the separated sludge fall to the bottom of a sedimentation tank main body, collecting the sludge through a sludge scraper and then performing discharging. The method provided by the invention can be used for large-scalewastewater treatment, at the same time has the advantages of simple operation, strong adaptability, stable operation and the like, also can improve the precipitation efficiency by 50-60%, and reducethe suspended matters in the water discharged from the system to 5-25mg / L.

Description

technical field [0001] The invention relates to a method for treating waste water by using a circular sedimentation tank equipped with a mechanical mud discharge device, and belongs to the technical field of environmental protection water treatment and purification. Background technique [0002] In recent years, with the gradual implementation of national environmental protection policies, industrial enterprises have gradually strengthened their investment in sewage treatment systems. Due to the relatively low per capita water consumption in our country, the cost of industrial water use is increasing year by year, and the requirements for sewage discharge are also constantly improving and becoming stricter. The papermaking wastewater discharge standard requires SS≤30mg / L, and the effluent suspended solids after treatment in ordinary sedimentation tanks is generally between 30 and 50 mg / L, and the effluent suspended solids index cannot meet the discharge standard requirements...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/02B01D21/24C02F1/52
CPCB01D21/02B01D21/2405B01D21/245C02F1/52C02F2001/007
Inventor 彭吉成
Owner 山东环发科技开发有限公司