Hospital waste water purification system

Abstract

The invention relates to a hospital wastewater purification treatment system. The system comprises a grid, an adjusting disinfection tank, a coagulation pool, a primary precipitation pool, a hydrolysis acidification pool, an aerobic biological filter tank, a secondary precipitation pool, deep oxidation equipment, a sludge pool and a recycling water storage tank connected mutually; the grid is used for removing solid impurities; the adjusting disinfection tank is used for accumulating original wastewater discharged by various wastewater sources; the coagulation pool is used for adding and mixing a coagulant and a coagulant aid; the primary precipitation pool is used for precipitating precipitable substances of wastewater in the precipitation pool; the hydrolysis acidification pool is used for biodegradation in an anoxic state; the aerobic biological filter tank is used for converting organic molecules into inorganic molecules through biological action in an aerobic state; the secondary precipitation pool is used for precipitating newly generated water and original precipitable substances in the aerobic biological filter tank; and the deep oxidation equipment is used for oxidizing residual organic matters in the water which are different for biological treatment into inorganic molecules. The system has high purification degree; and outlet water can be used as recycled water for use.

Description

technical field [0001] The invention relates to a purification system for medical waste water, the purified water can reach the reuse standard of reclaimed water. Background technique [0002] Medical sewage is mainly the sewage discharged from the hospital's diagnosis and treatment rooms, laboratories, wards, laundry rooms, X-ray photography rooms and operating rooms. The source and composition of the sewage are very complicated. Hospital sewage contains a large number of pathogenic bacteria, viruses and chemical agents, and has the characteristics of space pollution, acute infection and latent infection. In foreign countries, hospital sewage is a special kind of sewage, regardless of whether it is sewage related to infectious patients or not, it must be thoroughly treated and disinfected. However, most hospitals in my country do not have a sewage treatment system. Hospital sewage is often treated as general domestic sewage, and is directly discharged into natural water bo...

AI Technical Summary

Problems solved by technology

Some experts believe that medical sewage contains a variety of viruses and bacteria, which is highly contagious. If it is not handled or disposed of properly, it will inevitably pollute the environment seriously and endanger human health, making the hospital a place where "the front door treats diseases and the back door releases poison". It must undergo strict special treatment before it can be discharged. At present, high-tech should be used to transform the hospital sewage treatment system to return the public to a safe environment.

[0004] At present, there are mainly two types of hospital wastewater treatment technologies, one is chlorine disinfection, which mainly uses liquid chlorine, sodium hypochlorite, chlorine dioxide and ozone, etc., among which sodium hypochlorite disinfection is mostly used, and the other is biological treatment, mainly aerobic Biological treatment and aerobic biological treatment are the same as hydrolytic acidification treatment and anaerobic biological treatment under anoxic state. Because aerobic treatment has a relatively high degree of purification and low pollutant content, it is selected for most treatment systems, while anaerobic biological treatment And hydrolytic acidification biological treatment is conducive to the degradation of large organic molecules that are difficult to aerobic biochemical into small molecules, and is conducive to reducing the sludge generated during treatment. It is usually selected for large-scale treatment systems, and combined with aerobic biological treatment to form a group treatment system , but the selection and cooperation methods of these treatment technologies have their own characteristics, and have their advantages and adaptability in different occasions. However, considering the overall treatment depth of existing hospital wastewater is generally not high, and the degree of purification of effluent water is not high. Will not be recycled, in today's emphasis on sustainable development, this can not but be said to be a major flaw

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