Method and device for purifying medical sewage in general hospital by graphene

Abstract

The invention discloses a device for purifying medical sewage in a general hospital by graphene, and also discloses a purification method of the device for purifying medical sewage in the general hospital by graphene. The invention aims to maximally remove suspended matters, harmful organic matters, heavy metals, various pathogens, parasites, residual antibiotics, oils, surfactants and radioactivesubstances in the medical sewage to in order to meet national relevant emission standards, ensure the discharge safety of various medical unit medical sewages in the general hospital and serve for the construction of green medical institutions. The method and the device for purifying the medical sewage with graphene have a good purification effect and a long service life, and is expected to be applied to treatment of various types of medical sewages in the general hospital; and the sewages undergo sorting purification according to the characteristics of the different medical unit medical wastewaters, and then undergo integral purification achieve a targeted purification process, so the purification effect and the purification efficiency of medical sewage are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of overall purification of medical sewage, and in particular relates to a method and a purification device for purifying medical sewage in a comprehensive hospital. Background technique [0002] Medical sewage is mainly the wastewater discharged from the hospital's consulting room, laboratory, inpatient ward, laundry room, X-ray photo-processing room and operating room. It has various sources and complex components. Generally speaking, medical sewage contains a large number of pathogenic bacteria, viruses and chemical agents, such as various drugs, disinfectants, diagnostic agents, detergents, as well as a large number of pathogenic microorganisms, parasite eggs and various viruses, including roundworms eggs, hepatitis virus, tuberculosis and dysentery. It has the characteristics of space pollution, acute infection and latent infection. Compared with industrial wastewater and domestic wastewater, medical s...

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Problems solved by technology

Compared with industrial wastewater and domestic wastewater, medical sewage has the characteristics of small water volume and strong pollution. If it is allowed to discharge, it will seriously pollute water sources, spread diseases, and easily cause major public health incidents

[0003] There are great differences in the components of sewage discharged by various medical departments of hospitals. If a single sewage treatment technology is generally adopted, the sewage purification effect will be greatly reduced.

The existing traditional sewage treatment technology does not fully consider the differences in the sewage discharge of various medical departments in hospitals, and some sewage purification processes still face problems of incomplete sterilization and residual pollutants, such as some pathogenic bacteria, including common bacteria, viruses, spirochetes, Rickettsia, chlamydia, mycoplasma, fungi and actinomycetes still remain

Some medical sewage may still be affected by suspended solids, radioactive substances, small or trace amounts of bromate, nitrate, chlorite, chlorate inorganic salts and antimony, barium, beryllium, boron, molybdenum, nickel, thallium, arsenic , cadmium, lead heavy metal ion pollution; residual antibiotics, sterilants, surfactants; residual formaldehyde, trihalomethane, dichloromethane, 1,2-dichloroethane, 1,1,1-trichloroethane, Chloroform, monochlorodibromomethane, dichloromonobromomethane, epichlorohydrin, vinyl chloride, 1,4-dichlorobenzene, trichlorobenzene, bis(2-ethylhexyl) phthalate, acrylamide, Microcystin-LR, bentazone, glyphosate, carbon tetrachloride, volatile phenolic organic compounds, residual chlorine, copper, lead, cadmium, mercury, arsenic, total chromium, hexavalent chromium heavy metals; if these are still treated Incomplete discharge of medical sewage that does not meet the standards can easily cause public health incidents and cause unprecedented social impact

On the other hand, some traditional medical sewage purification technologies also have potential safety hazards

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