Medical sewage multi-stage water treatment system and treatment method

Abstract

The invention discloses a medical sewage multi-stage water treatment system and treatment method in the technical field of water treatment. The medical sewage multi-stage water treatment system comprises a pretreatment device, a water regulating device, a contact oxidation pond, a settling pond, a sterilization and disinfection pond and a dechlorination device, wherein the left side of the pretreatment device is connected with a sewage inlet, and cleaning and picking holes are formed in the left side and right side of the top of the shell of the pretreatment device respectively. The medical sewage multi-stage water treatment system and treatment method are reasonable in design, treatment efficiency is high by adopting multi-stage treatment, and solids in sewage can be decomposed by adopting the pretreatment device, so that volume of the sewage is reduced; by adopting the water regulating device, the heavy metal level in the medical sewage can be degraded, and the pH value of the sewage is regulated to be neutral; by adopting the contact oxidation pond, organic pollutants in the sewage can be decomposed and absorbed; and by adopting the sterilization and disinfection pond, viruses and bacteria in the sewage can be killed, and healthy water quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a multi-stage water treatment system and treatment method for medical sewage. Background technique [0002] Medical sewage comes from hospitals, containing a large number of pathogenic bacteria, viruses and chemical agents, which require special process treatment. Medical water involves many departments, including hemodialysis water, laboratory water, biochemical test water, pathology water, central supply room water, and surgical water. Compared with industrial sewage, medical sewage has a greater impact on the environment and is more harmful than industrial sewage. During the operation of the hospital, it is inevitable to produce direct or indirect infectious, toxic and other harmful sewage. The source of these sewage determines the complexity of its composition, involving a variety of biological and chemical properties. Contains a large number of pathogens such as ba...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-stage water treatment system and treatment method for medical sewage, so as to solve the problem that the current major hospitals do not properly dispose of seriously harmful medical sewage and ignore the viruses in sewage. The problem of water pollution vicious incidents that may be caused by infection

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