Sludge return sedimentation pool improved from pipe chute sedimentation pool and improving method thereby

Abstract

The present invention provides a return sludge settler changed by an inclined tube settler, characterized in that the upper reation region is set with a mixing region and a promoting flocculation zone, a blender is set in the mixing region, a promoting mixer and an attachable stainless steel cylinder are set in the promoting flocculation zone, a baffle system is set between a filtering zone and a inclined tube water outlet, a mud zone sets a plug concentrating mud scraper, the mud pipe is connected with a mud runback to water inlet, the mud runback is set with a mud reflux pump, the mud runback is connected with exterior, and a medical feeding point is set in the water inlet and the main settler. The advantages of the invention is that giving full play impact to index such as biological degradation organic matter, nitrogen and phosphorus etc nu changing traditional inclined tube settler, enhancing coagulation efficiency by high effect mixing and mud return, thus the effluent effect is improved, and the solid ratio of the drainable sludge is enhanced, meeting the direct dehydration condition.

Description

Technical field: [0001] The invention relates to the field of municipal engineering, in particular to a sludge return sedimentation tank transformed from an inclined tube sedimentation tank and a modification method thereof. Background technique: [0002] At present, the conventional treatment of waterworks, sewage treatment and special water treatment mostly use traditional tank types such as advection sedimentation tanks, mechanical agitation clarifiers, and inclined tube sedimentation tanks. Among them, the inclined tube sedimentation tank is widely used due to its small footprint and high water outlet efficiency. However, due to reasons such as mechanical scraping and flocculation effects, the processing capacity is limited, making it difficult to improve the overall water quality of the outlet water. How to install it in the existing tank type? Under certain conditions, through methods such as strengthening flocculation and improving sludge discharge conditions, the eff...

AI Technical Summary

Problems solved by technology

Among them, the inclined tube sedimentation tank is widely used due to its small footprint and high water outlet efficiency. However, due to reasons such as mechanical scraping and flocculation effects, the processing capacity is limited, making it difficult to improve the overall water quality of the outlet water. How to install it in the existing tank type? Under certain conditions, through methods such as strengthening flocculation and improving sludge discharge conditions, the effect of mixed flocculation and sedimentation can be fully exerted, and the biodegradation effect can be exerted as much as possible by combining various medicaments and aeration. Further optimization is needed.

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