Unpowered microflocculation reaction sedimentation tank

Abstract

The invention relates to an unpowered microflocculation reaction sedimentation tank. The tank comprises a mixing component, a sedimentation component and a sludge removal component. The mixing component include a first eddy current reaction zone, a second eddy current reaction zone and a slow-flow clarification zone arranged in a sedimentation tank, a water outlet of the first eddy current reaction zone is formed in the second eddy current reaction zone, the inner wall of the first eddy current reaction zone is gradually contracted in the direction from a total water inlet of one end of the first eddy current reaction zone to a first water outlet of the other end, a second water outlet of the second eddy current reaction zone is communicated with the slow-flow clarification zone, and a micro eddy current generating mechanism is arranged in the slow-flow clarification zone; the sedimentation component includes a sedimentation region arranged in a sedimentation tank, and a third water outlet of the slow-flow clarification zone is communicated with a sedimentation region, and the sludge removal component includes a sludge outlet. Mechanical stirring is not needed, good and rapid flocculation and sedimentation are achieved, an agent is saved, energy consumption is reduced, the structure is compact and simple, and an existing wastewater treatment project can be simply, rapidly and efficiently transformed.

Description

technical field [0001] The invention belongs to the field of environmental protection equipment, and relates to industrial organic wastewater and municipal domestic sewage treatment systems, in particular to an unpowered micro-flocculation reaction sedimentation tank. Background technique [0002] Flocculation and sedimentation are composed of two parts: flocculation and sedimentation. The flocculation process refers to the process in which the flocculant is fully mixed with the wastewater by adding the flocculant through hydraulic or mechanical stirring, and the flocs collide with each other to form ideal alum flowers for settlement. The most widely used flocculation processes in existing sewage stations are mechanical agitation and hydraulic agitation. Most small and medium-sized sewage stations use mechanical agitation, but mechanical agitation has poor flocculation effect, low equipment efficiency, high operating costs, and heavy maintenance workload. question. Most of...

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Problems solved by technology

The most widely used flocculation processes in existing sewage stations are mechanical agitation and hydraulic agitation. Most small and medium-sized sewage stations use mechanical agitation, but mechanical agitation has poor flocculation effect, low equipment efficiency, high operating costs, and heavy maintenance workload. question

Most of the large-scale sewage stations use hydraulic agitation, including: swirling reaction tanks, advection sedimentation tanks, inclined tube sedimentation tanks, hydraulic clarification tanks, etc. However, such processes have long process flow, large floor area, high infrastructure costs, and stable operation. Poor performance, poor coagulation effect and other problems

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