Hospital sewage fully enclosed treatment technology and integrated equipment

Abstract

A process and its integrated equipment for treating the sewage of hospital in fully enclosed mode feature that in a full-enclosed case, there are regulating pool, aerobic internal circulating reaction pool, deposition pool, disinfecting pool for discharged water, disinfecting pool for exhausted gas, concentrating and disinfecting pool for discharge sludge, and equipment room. Its advantages are high efficiency and safety automatic control, and low cost.

Description

Technical field [0001] The invention relates to a sewage treatment process and equipment, in particular to a hospital sewage treatment process and its corresponding fully enclosed integrated equipment. Background technique [0002] Hospital sewage contains a large number of germs, viruses and parasite eggs, which has always been a hidden danger to people's health and social stability. Due to the ravages of SARS, a large number of personal injuries and property losses have been caused, and the requirements for the safe treatment and disposal of hospital sewage and waste have been raised to a new level. [0003] Hospital sewage comes from outpatient clinics, inpatient departments, laundry rooms, canteens, toilets, etc., usually ranging from tens to hundreds of tons per day. The quality of hospital sewage is relatively complicated. In addition to containing a large number of germs and parasite eggs, it mainly contains various drugs, washing powder or soda ash, radioisotopes, cotton ...

AI Technical Summary

Problems solved by technology

[0005] Existing facilities, especially the systems built in the last century, generally have the following problems: ① Open pools are mostly used, and generally only the effluent is sterilized, only some of which can sterilize the remaining sludge, and the waste gas generated by aeration No disinfection, so bacteria and viruses in the wastewater can be brought into the atmosphere during aeration, and the sewage treatment device itself is a source of pollution

② Manual operations are mostly used, and operators are exposed to polluted environments for a long time, which will endanger their health

③ The process of the aerobic part and the disinfection part of the early construction facilities are relatively backward, and the process of the aerobic part is mostly a traditional process, which has the disadvantages of low efficiency, large volume and high investment in equipment

Chlorine disinfection is used for disinfection. Since there are many by-products of chlorine disinfection, some of which have carcinogenic and teratogenic effects, there is a problem of secondary pollution, and chlorine is severely corrosive to equipment.

④Manual operation, the water quality of the effluent is unstable, and it is easy to cause waste of disinfectant

[0006] At present, a hospital sewage closed treatment system is disclosed in the prior art, and its aerobic reactor adopts a membrane bioreactor, but the membrane bioreactor has the disadvantages that the domestic membrane is short in life, the imported membrane is expensive, and the structure of the membrane module is relatively complicated. , and in order to overcome membrane fouling, cleaning and backwashing must be carried out, the operation is more complicated, and the operation cost is higher

In addition, the integration degree of existing hospital sewage treatment equipment is still not high enough. At present, only biological treatment and effluent disinfection are integrated, and additional equipment must be installed for the treatment of waste gas and excess sludge.

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