Hospital wastewater treatment process equipment and hospital wastewater treatment method

Abstract

The invention provides hospital wastewater treatment process equipment and a hospital wastewater treatment method. The hospital wastewater treatment process equipment comprises an adjusting pool, a contact oxidation pool, a membrane bioreactor, a water producing pool, a sludge settling pond, a sludge storage pond and a tail gas treatment device, wherein the adjusting pool is communicated with the contact oxidation pool through a sewage lifting pump; the contact oxidation pool is communicated with the membrane bioreactor; an immersion type micro-filter membrane assembly is arranged in the membrane bioreactor; the membrane bioreactor is communicated with the water producing pool through a self-suction water pump; the upper part of the water producing pool is communicated with a sodium hypochlorite dosing device; the bottom end of the membrane bioreactor is communicated with a sludge reflux pump, the sludge settling pond and the sludge storage pond in sequence; the pipelines of the sludge settling pond and the sludge reflux pump are communicated with the sodium hypochlorite dosing device; the sludge storage pond is connected with a plate frame press filter through a pipeline provided with a screw pump. The hospital wastewater treatment process equipment has the beneficial effects that outlet water meets the requirements of medical institution water pollution discharge standards, equipment is compact, the operation is simple and convenient, the investment is low, and the operation management is safe and reliable.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment and a sewage treatment method, in particular to a hospital wastewater treatment process equipment and a hospital wastewater treatment method. Background technique [0002] Hospital wastewater is mainly a variety of toxic, harmful and bacterial wastewater generated during the operation of medical institutions. The water quality varies with the nature, scale and location of different hospitals. The amount of sewage discharged by each hospital bed is about 200-1000L per day. The sources and components are complex, mainly composed of wastewater discharged from consultation rooms, wards, pathological anatomy rooms, radiology rooms, X-ray photography rooms, and operating rooms, as well as a small amount of wastewater from offices and washing. Hospital wastewater contains a large number of pathogenic bacteria, viruses and chemical agents, and has the characteristics of pollution, acute infection...

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Problems solved by technology

[0003] The hospital wastewater treatment in the prior art has the following deficiencies: at present, the sewage of most hospitals in my country is discharged after direct disinfection, and only a few hospitals undergo secondary biological treatment before disinfection. Viruses can be attached to or wrapped in suspended flocs and are not easily inactivated by disinfectants; the existing hospital wastewater treatment is disinfected when the organic matter has not been removed or the removal efficiency is low, which not only has poor disinfection effect, but also produces A large number of disinfection by-products; the residual sludge produced by hospital wastewater treatment contains a large number of pathogenic microorganisms, if not handled properly, it will become a secondary pollution source

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