{"id":1545,"date":"2022-07-12T11:58:57","date_gmt":"2022-07-12T03:58:57","guid":{"rendered":"http:\/\/www.greenmax.tech\/?page_id=1545"},"modified":"2022-08-04T20:20:09","modified_gmt":"2022-08-04T12:20:09","slug":"introduction-to-medical-waste-treatment-technology","status":"publish","type":"page","link":"https:\/\/www.greenmax.tech\/en\/introduction-to-medical-waste-treatment-technology","title":{"rendered":"Introduction to medical waste treatment technology"},"content":{"rendered":"

Introduction to medical waste treatment technology<\/span><\/h3><\/div><\/a><\/div>\"Introduction<\/a><\/div><\/div><\/div><\/section>\n\n\n\n

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Based on the purpose of environmental protection and resource and energy recycling, and focusing on the strategy of sustainable development, the state has put forward the principles of recycling, harmlessness and reduction for waste treatment. Harmless means that the treated waste is harmless to human health and the surrounding environment; Reduction refers to the obvious reduction of the volume and quantity of treated waste to reduce the harm to human beings and the environment; Recycling refers to the proper treatment of waste to obtain useful materials and energy.<\/p>\n<\/div>\n<\/div>\n\n\n\n

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At present, the commonly used medical waste treatment technologies are generally divided into three categories: \u2460 conventional treatment methods, such as disinfection, sterilization, microwave and safe landfill; \u2461 High temperature treatment methods, such as incineration, pyrolysis and gasification; \u2462 Innovative technologies, such as plasma technology. The following table compares the advantages and disadvantages of several common medical waste treatment technologies. The World Health Organization stated that the selection of medical waste treatment technology should follow the following points: the risk assessment of equipment is the lowest, the impact on human health and the environment is the smallest, low-cost, high-yield and easy to implement; It can fully inactivate infectious microorganisms to protect public health and safety; Know the quantity and type of waste before choosing technology. The following table summarizes the applicability of medical waste treatment technology to different medical wastes.<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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omparison of characteristics of various medical waste treatment technologies<\/strong><\/p>\n<\/div><\/div>\n\n\n\n

Processing technology<\/strong><\/td>Technical parameter<\/strong><\/td>Advantage<\/strong><\/td>Shortcoming<\/strong><\/td><\/tr>
landfill<\/td>Medical waste characteristics,
geological conditions, climate, scale, etc<\/td>		Simple process and large processing capacity<\/td>Low volume reduction, high investment, large land occupation, large land occupation,
harmful gases (NH, HS, etc.) and volatile organic compounds are generated. The quality of soil and groundwater needs to be monitored.<\/td><\/tr>
Chemical disinfection<\/td>Reagent concentration,
temperature, pH, mixing time, etc<\/td>		Simple process, good deodorization effect and fast disinfection<\/td>It will produce waste liquid and waste gas, and the disinfectant is harmful to
human body. Volatile and semi volatile organic matter are not applicable to this method.<\/td><\/tr>
Microwave treatment<\/td>Microwave intensity,
treatment time, waste characteristics, etc<\/td>		Little pollution, easy to realize automatic treatment<\/td>The cost is high and the weight loss effect is poor. This method is not applicable to blood and dangerous chemicals.<\/td><\/tr>
temperature and high pressure steam sterilization<\/td>Temperature, pressure,
steam penetration, feed size, etc<\/td>		Low cost and good disinfection effect<\/td>The reduction is poor and easy to produce air pollutants. Formaldehyde, phenol and other substances are not suitable for this method.<\/td><\/tr>
Dry heat crushing sterilization method<\/td>Waste characteristics, temperature, etc<\/td>Low cost, no need for disinfectant<\/td>Crushing pretreatment is required, which is easy to produce odor and air pollutants<\/td><\/tr>
High temperature incineration<\/td>Waste moisture content,
temperature, residence time, etc<\/td>		The volume and weight reduction are
obvious, applicable to all waste types, the technology is mature, and the potential heat energy can be recycled<\/td>		It is easy to pollute the air, produce dioxins, polycyclic aromatic compounds,
polychlorinated biphenyls and harmful gases (HF, so, etc.), and the waste residue and fly ash are toxic<\/td><\/tr>
Pyrolysis treatment<\/td>Temperature, time,
material size and characteristics, etc<\/td>		Low temperature, fixed heavy
metals, recycled heat energy, recyclable energy, waste does not need classification and pretreatment<\/td>		The space required is large, the installation cost is high, and radioactive substances and mercury cannot be treated<\/td><\/tr>
plasma gasification<\/td>Power, temperature, waste characteristics, etc<\/td>Suitable for all kinds of waste,
space saving, environmentally friendly, energy recovery, low toxic residues<\/td>		New technologies are in the hands of European and American enterprises, and there are few domestic R & D enterprises<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
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\u5404\u79cd\u533b\u7597\u5e9f\u7269\u5904\u7406\u6280\u672f\u5404\u79cd\u533b\u7597\u5e9f\u7269\u5904\u7406\u65b9\u6cd5\u5bf9\u5e9f\u7269\u7684\u9002\u7528\u6027<\/strong>\u7279\u70b9\u6bd4\u8f83<\/strong><\/p>\n<\/div><\/div>\n\n\n\n

Technology<\/strong><\/td>Infectious waste<\/strong><\/td>Dissecting waste<\/strong><\/td>Cytotoxic waste<\/strong><\/td>Chemical waste<\/strong><\/td>Drug<\/strong><\/td>Sharps<\/strong><\/td><\/tr>
landfill<\/td>\u221a<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>smaller part<\/td>\u00d7<\/td><\/tr>
Chemical disinfection<\/td>\u221a<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td><\/td><\/tr>
Microwave treatment<\/td>\u221a<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td><\/tr>
temperature and high pressure steam sterilization<\/td>\u221a<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>\u00d7<\/td>\u221a<\/td><\/tr>
Dry heat crushing sterilization method<\/td>\u221a<\/td>\u00d7<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td><\/tr>
High temperature incineration method<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td><\/tr>
Pyrolysis treatment<\/td>\u221a<\/td>\u221a<\/td><\/td>smaller part<\/td>Small part or high temperature \u2265 850 \u2103<\/td>\u221a<\/td><\/tr>
Gasification method<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td><\/tr>
plasma gasification<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td>\u221a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Note: \u221a means applicable; \u00d7 means not applicable<\/strong><\/strong><\/p>\n\n\n\n

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