Rainfall runoff pollution treatment equipment with self-cleaning function

Abstract

The invention relates to rainwater treatment and recovery, and provides rainfall runoff pollution treatment equipment with a self-cleaning function. A water storage skip bucket communicated with inlet water is arranged in a cell body; the both ends of the water storage skip bucket are movably connected with two opposite inner lateral faces of the cell body, and are fixedly connected with the cell body through a bolt; a sediment hopper is arranged on the cell bottom of the cell body; a submersible sewage pump is mounted in the sediment hopper; an overflow weir hopper is further arranged in the cell body; and the weir top of the overflow weir hopper is lower than the upper edge of the cell body. For the purpose of convenience for automatic control, the rainfall runoff pollution treatment equipment further comprises a PLC (Programmable Logic Controller) electric control cabinet; a floater liquid level switch is arranged in the sediment hopper; and the PLC electric control cabinet controls the on and off of the submersible sewage pump according to received signals transmitted by the floater liquid level switch and controls the opening and closing of the bolt simultaneously. According to the rainfall runoff pollution treatment equipment provided by the invention, initial-stage runoff with heavier pollution and later-stage runoff with lighter pollution can be effectively separated and flow to own treatment units. Finally, the area pollution caused by runoff is removed. Therefore, the water quality of the natural water body is protected, and the self-cleaning of the equipment is realized.

Description

technical field [0001] The invention belongs to the field of rainwater treatment, and relates to a rainwater runoff separation device for early and late stages, in particular to a rainwater runoff pollution treatment device with self-cleaning function. Background technique [0002] Large and medium-sized cities in my country mostly adopt a separate drainage system, which only collects sewage into the sewage treatment plant for treatment, and discharges the rainwater runoff collected through the rainwater pipe network into natural water bodies without any treatment. Existing studies have shown that rainwater runoff carries a large amount of pollutants, and the resulting non-point source pollution promotes the deterioration of water quality. The practice of direct discharge of runoff without treatment can no longer meet the increasingly stringent water pollution control requirements. However, if all the runoff is collected into the sewage plant, the unstable water input will ...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing invention patents for runoff treatment are simple solid-liquid separators, and the deposited sludge / silt needs to be dredged manually on a regular basis, and the device cannot be cleaned automatically

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