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    Home > Chemicals Industry > China Chemical > The "use side" of the new solid waste law urges reusable medical protective clothing to "land" and speed up

    The "use side" of the new solid waste law urges reusable medical protective clothing to "land" and speed up

    • Last Update: 2022-06-26
    • Source: Internet
    • Author: User
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      On September 1, the "Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste" (hereinafter referred to as the New Solid Waste Law) was formally implemented.
    It is known as the legal system of "the most stringent system and the strictest rule of law to protect the ecological environment".
    The new solid waste law specifically mentions the treatment of hazardous solid waste brought about by emergencies such as major infectious disease epidemics.


      The occurrence of the new crown pneumonia epidemic has greatly increased the use of disposable medical protective equipment.
    Its processing costs and possible environmental problems have attracted attention, affecting solid waste treatment, standard formulation, research and development and other links.


      One-time use brings "high cost" to waste disposal.
    "The cost of

      incineration of 1 ton of hazardous waste is at least RMB 3,000, while the cost of incineration of 1 ton of domestic waste is only about RMB 200.
    " Miao Haomei from the Ministry of Environmental Hazardous Waste Industry said A reporter from the Daily said that the cost of hazardous waste disposal is more than ten times that of domestic waste.


      At the same time, the treatment of medical waste requires a special hazardous waste business license.
    At present, there is only one incineration plant specializing in the treatment of medical waste in Beijing, as well as two hazardous waste incineration plants.


      It can be seen that regardless of the cost of treatment or the establishment of a special treatment site, the use of a large number of disposable medical protective equipment is expensive when it is used as a hazardous solid waste treatment.


      At the same time, the new solid waste law also puts forward requirements for reducing the output of hazardous solid waste from the "use side".
    The law mentions: "Units that produce hazardous waste should formulate a hazardous waste management plan in accordance with relevant national regulations.
    Including reducing the amount of hazardous waste produced.


      How to reduce the amount of hazardous waste generated?

      Reusable becomes the most effective solution.
    In this regard, the State Council’s Joint Prevention and Control Mechanism Science and Technology Research Group listed "Medical Protective Clothing Technology Research and Product Development Evaluation" in the fourth batch of emergency science and technology research projects, and deployed a team of experts in Beijing, Shandong, Henan, Jiangsu and other places to develop repeatable research and development.
    Use medical protective clothing.
    This type of protective clothing is made of special materials and can be used multiple times after sterilization.


      Difficulties facing reusability

      From the perspective of reproducibility, medical protective equipment needs to be able to withstand high temperature sterilization.


      From the perspective of medical protection, it isolates the patient and the doctor who are facing each other, but it must be a soft "golden bell.
    "

      However, in our country, there is still a difficulty in the industrialization of reusable medical protective clothing and other protective equipment, and that is the lack of standards.
    To this end, on March 10, 2020, the National Medical Products Administration issued a notice to approve the emergency establishment of the "Reusable Medical Protective Clothing" medical device industry standard revision project, and urgently promote the industrial development of reusable medical protective clothing.


      "The research and development of reusable medical protective products is actually ongoing.
    " Sun Mingzhi, head of Weihai Yunlong Composite Textile Material Co.
    , Ltd.
    , who participated in the formulation of the new national standard for "reusable medical protective clothing", explained to a reporter from Science and Technology Daily, "2001 In 1991, the Chinese People’s Liberation Army General Hospital (301 Hospital) and Shandong Yunlong Group jointly undertook the National 863 Project.
    At that time, medical protective products were mainly used to solve the problem of nosocomial infections.
    Different composite materials were used to achieve three preventions and at the same time breathe.
    .
    " "

      we often see war 'plague' front-line medical workers soaked in the body after take off protective clothing, surgical gowns inner all wet, wear protective clothing if they can achieve high permeability, such The phenomenon will improve a lot.
    " Sun Mingzhi said.


      In a highly pathogenic and complex environment, while opening the "channel" for water vapor, it is also necessary to prevent viruses, bacteria, stains, etc.
    from entering the protective clothing.


      "Waterproof, anti-fouling, anti-permeation, high air permeability, and high temperature and high pressure steam or ethylene oxide, ultraviolet sterilization, so many requirements leave very little space for the material, but it can be achieved through composite materials.
    "Sun Mingzhi said, for

      example, through the composite lamination process of polymer film and woven fabric, the fabric used in protective clothing can achieve the effect of "full water" to keep the interior dry and comfortable.
    For another example, through a three-layer composite structure of "molding layer + skeleton layer + barrier layer", materials with protective functions are sandwiched in the middle for protection, which can resist the "ravages" of the sterilization process.


      "For the first time in China, we have developed a reusable flexible composite material that can withstand high temperature and high pressure steam sterilization.
    We have also carried out research on the principle of moisture curing reaction, polymer membrane technology, dot coating composite and other processes, and solved the waterproof and permeability of protective clothing.
    The problem of wetness incompatibility, and at the same time make it have good antibacterial properties.
    " Sun Mingzhi said.


      Sudden public health incidents caused industry upgrades and upgrades.


      “During the SARS period in 2003, we donated related products to key epidemic prevention hospitals such as Beijing Ditan Hospital through the Ministry of Health at that time.
    The feedback from the use at that time also gave us our participation in standard formulation.
    Provides valuable experience.
    " Sun Mingzhi said.


      People still remember that in the early days of the new crown pneumonia epidemic, the supply of medical protective clothing was severely insufficient, and there was an urgent demand for high-protection products.
    The state mobilizes the production capacity of all parties to support the production of medical supplies including protective clothing.


      Responding to sudden major public health incidents has raised new issues for the medical products industry.
    Reusable medical protective clothing has gradually come into people's field of vision as a solution to the shortage of strategic stockpiles of epidemic prevention materials.


      "Bacterial resistance rate is 100%, impermeability is above 10Kpa, it can withstand 80℃ washing and 134℃ steam sterilization, and it can be recycled up to 12 times or more.
    " Sun Mingzhi gave a series of numbers for first-line products used for epidemic prevention Requirements.
    He believes that the protective clothing has the performance of "waterproof, anti-fouling, anti-permeation, high air permeability, high barrier, and high reusability", which will improve the protective ability of medical staff, reduce the comprehensive use cost of hospitals, and break the anti-epidemic material reserves and solidification.
    Risks and consumption issues of waste disposal.


      Sun Mingzhi calculated an account, 2 million pieces of reusable protective clothing, equivalent to 24 million pieces of disposable protective clothing, which can reduce the risk and consumption of 5600 tons of medical solid waste.
    If the processing cost is 3,000 yuan per ton, it will save 16.
    8 million yuan in processing costs.



    Transfer from: Science and Technology Daily

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