Medical sewage safe processing system adopting biomembrane method

Abstract

The invention relates to a medical sewage safe processing system adopting a biomembrane method, which comprises a closed water collecting pond, a closed sterilizing pond, a primary sedimentation pond, an aerobic biomembrane processing pond and a secondary sedimentation pond which are connected in sequence; the inside of a water inlet pipe of the closed water collecting pond is provided with a pipe type wet grinder; the closed water collecting pond and the closed sterilizing pond are in closed connection by a pipe; a water inlet and a water outlet of the aerobic biomembrane processing pond are both positioned on the upper part of the aerobic biomembrane processing pond, and the inside of the aerobic biomembrane processing pond is provided with a vertical baffle clapboard connected with the top part of the aerobic biomembrane processing pond, the pond on one side of the water inlet of the clapboard , is provided with a fixed packed bed, and the pond on one side of the water outlet of the clapboard is provided with a water channel; a water inlet of the secondary sedimentation pond is connected with the water outlet of the aerobic biomembrane processing pond; the top of the primary sedimentation pond is provided with a balling gun of a disinfectant neutralizing preparation. The system has the advantages of good biological safety, unsusceptible occurrence of spreading risk of pathogenic microorganisms, high purification efficiency, relatively less investment, and convenient operation and maintenance.

Description

technical field [0001] The invention relates to a medical sewage safety treatment system adopting a biofilm method, which belongs to the technical field of environmental protection. Background technique [0002] Medical sewage comes from hospitals and other medical institutions, which may contain a large number of pathogenic microorganisms, and contain various drugs, washing powder, soda ash, radioisotopes, cotton swabs, gauze, etc., and its COD is close to the numerical range of domestic sewage, but the fluctuation is relatively large. Large. The BOD / COD of sewage is generally around 0.5, and the biodegradability is good, but biological safety is an important issue, and it cannot be treated like ordinary sewage. [0003] According to the characteristics of medical sewage water quality and the adopted discharge standards, the current commonly used treatment technology is to pass the sewage through the grid and regulating tank into the aerobic biological treatment unit, and t...

AI Technical Summary

Problems solved by technology

The current ubiquitous defects are mainly manifested in several aspects: (1) Open tanks are mostly used, especially for aerobic biochemical treatment, because aeration is required in it, there will be a large amount of other discharges, and the gas in these gases The sol will carry microorganisms and diffuse into the atmosphere, and the sewage treatment plant itself is a source of pollution

(2) The operation is not standardized, and the degree of automatic detection and control is low. (3) Some processing sites occupy a large area and high operating costs

[0004] In view of this, people began to develop a fully enclosed treatment system, which closed all treatment equipment, and sterilized the purified water discharged from it and the collected air to achieve the purpose of eliminating biological harmlessness. Closed equipment requires relatively high investment and is difficult to operate and maintain

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