Horizontal sedimentation tank with sludge pump house

Abstract

The present invention discloses a horizontal sedimentation tank with a sludge pump house. The horizontal sedimentation tank comprises several groups of sedimentation tank units, each of the sedimentation tank units is successively provided with: a water inlet region, a precipitation region, a sludge discharge region for discharging sludge and a water outlet region for discharging precipitated water; a sludge hopper is formed within the sedimentation region, the sludge discharging region is further provided with a sludge discharge groove, one end of which is connected to the sludge hopper, and another end of the sludge discharge groove is connected to a sludge external reflux pump house for external refluxing and a residual sludge pump house for discharging excessive sludge via a sludge discharge pipe. Sludge scrapers for scrapering the sludge are provided within the discharge sludge groove and both sides of an inlet. The horizontal sedimentation tank with the sludge pump house disclosed by the present invention can meet the influent water quality, the water amount change and various override working conditions, and engineer lands and construction costs are saved to the maximum extent.

Description

technical field [0001] The invention relates to a sewage treatment tank, in particular to an advection sedimentation tank with a sludge pump room. Background technique [0002] A sedimentation tank is a structure that uses sedimentation to remove suspended solids in water. Sedimentation tanks are widely used in wastewater treatment. It has many types, which can be divided into three types: advection type, vertical flow type and radial flow type according to the direction of water flow in the pool. [0003] In recent years, due to the improvement of environmental protection standards on the effluent indicators of sewage plants, and the land occupation control of sewage plants has become more and more stringent, how to ensure the effect of sedimentation tanks and the concentration of sludge return flow is very important for the more stable and standard operation of sewage plants. If the design If it is unreasonable, it will be difficult to meet the current water discharge re...

AI Technical Summary

Problems solved by technology

However, with the large-scale planning of sewage treatment, the intensification of treatment area, and the automation of treatment process, the number of traditional secondary settling tanks is increasing, and the area is getting larger and larger. Due to factors such as foundation settlement, it cannot be guaranteed that every The treatment capacity of the group is equal and the load of the weir is consistent, and the treatment effect cannot be guaranteed

In many cities, land has become a bottleneck for the development of various facilities, and many equipment and technologies cannot be implemented due to the large area occupied

Images