A method of increasing the area of sedimentation

By setting up a packing bed and spray pipes in the buffer zone of the sedimentation tank, the problems of suspended solids accumulation and insufficient sedimentation area are solved, thereby increasing the sedimentation area of ​​the sedimentation tank and reducing costs. This method is suitable for various wastewater treatment scenarios.

CN117046164BActive Publication Date: 2026-06-05PAQUES ENVIRONMENTAL PROTECTION TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PAQUES ENVIRONMENTAL PROTECTION TECH (SHANGHAI) CO LTD
Filing Date
2023-09-19
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing sedimentation tanks suffer from poor settling properties of suspended solids, increased influent flow rate, or the introduction of oily substances into the water. Suspended solids tend to accumulate easily, and the sedimentation area is the same as the floor space occupied, resulting in high construction costs.

Method used

A packing bed is installed on the upper side of the buffer zone of the sedimentation tank, and water spray pipes and discharge pipes are installed on the upper side and side wall of the packing bed. Water is sprayed through the water spray pipes to create turbulence, and suspended solids adhering to the packing bed are discharged through the discharge pipes, thereby increasing the sedimentation area and reducing the risk of suspended solids accumulation.

Benefits of technology

It effectively increases the sedimentation area of ​​the sedimentation tank, reduces the risk of suspended solids accumulation in the sedimentation tank, reduces construction costs, and is suitable for different types of wastewater treatment, including oily or greasey wastewater and water treatment with high suspended solids concentration.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117046164B_ABST
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Abstract

The application discloses a method for increasing a sedimentation area, and a sedimentation tank with an increased sedimentation area. The sedimentation tank comprises a tank body, a water inlet pipe, a filler bed, a water spraying pipe and a discharge pipe. The tank body has a buffer zone and a sludge zone, and the sludge zone is arranged on the lower side of the buffer zone. The water inlet pipe extends in the up-down direction, the upper end of the water inlet pipe is provided with an inlet for sewage, and the lower end of the water inlet pipe extends to the buffer zone. The filler bed is arranged on the upper side of the buffer zone. The water spraying pipe is arranged on the upper side of the filler bed, and is used for spraying water to the filler bed. The discharge pipe is arranged in the buffer zone and on the side wall of the tank body, and is used for discharging sewage in the buffer zone. The sedimentation tank has the advantages of low risk of accumulation of suspended solids in the sedimentation tank and large sedimentation area.
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