Initial rainwater collection and storage purification pool and purification process

Abstract

The invention designs an initial rainwater collection and storage purification pool and a purification process, the initial rainwater collection and storage purification pool comprises a pool body ventilation system, a rainwater feeding system, a coagulant adding system, a sludge water distribution system and a collection and storage pool emptying system, the space required by rainwater regulation and storage is utilized, on the basis of a collection and storage function, the rainwater purification function and the sludge discharge function are achieved, and impurity separation in water can be achieved; an independent water purification structure does not need to be built additionally; the bottom of the pool body adopts a reciprocating type traction sludge suction vehicle group to collect sludge sundries, and no electrified equipment is arranged in the pool body; according to the purification process, the processes of rainwater collection and storage, coagulant addition, coagulating sedimentation, sludge discharge, water discharge (clear), standby and the like are automatically controlled and sequentially completed by a configured industrial personal computer in an intermittent operation mode, and the coagulation process adopts an air bubble stirring mode and has the advantages of land saving, high utilization efficiency of engineering facilities, reliable water purification effect, simple structure, low cost and the like. The operation management is convenient; the automation degree is high; and the investment is saved, and the operation and maintenance cost is low.

Description

technical field [0001] The invention relates to an initial rainwater collection and purification tank and a purification process, which are used for the collection and treatment of initial polluted rainwater, and belong to the technical field of water environment treatment and sponge city construction. Background technique [0002] In the process of urban modernization, due to the large amount of buildings occupying limited ground, the surface runoff pollution generated during rainfall, especially the initial rainwater pollution, is one of the important causes of urban black and odorous water bodies, and thus becomes an important part of urban water environment governance and The main targeted control target of sponge city construction. In order to reduce the pollution of the initial rainwater to the environment, the main technical measures adopted in the project are to collect and store the rainwater at the initial stage of rainfall through the storage tank, and to purify i...

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Problems solved by technology

[0003] The invention patent "A Method for Rainwater Percolation, Storage and Purification" (201611100292.1) is to filter rainwater through gravel, PP cotton, activated carbon and other materials, and then treat it in combination with sterilization. The treatment device can be reused for a short period, and the treatment cost is high; the device disclosed in the new patent "A Rainwater Garden System with Enhanced Water Purification Function" (201721441941.4) has a small processing capacity and occupies a large area, and is not suitable for urban rainwater treatment, etc. question

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