Microbial Inactivation by microwave treatment - Bertin medical Waste

    Microbial Inactivation by microwave treatment

    The microwave technology used by Sterilwave is recognized and recommended by the WHO. It meets the requirements of all standards in the world. Pressurless, it allows a safe treatment of bio-hazardous waste without rejection of liquid effluent, in compliance with environmental requirements.

    The Sterilwave solution for disinfecting biomedical waste is based on a combination of shredding by rotating blades and temperature rise by microwave technology, the most respectful of the environment. 100% electric, this innovative patented technology allows microbial inactivation of medical waste in 30 minutes. Compared to traditional autoclave solutions, which consume high amount of energy (generation of steam / water / electricity / treatment of effluents) and require the management of a vessel under several pressure bars by qualified technicians, Sterilwave solutions minimize the significant risks of pressure thanks to their ease of use by unqualified operators. Their maintenance is simple and low cost compared to competing technologies (incineration / autoclave / friction).

    All types of solid waste as well as liquids packaged without specific segregation (plastic, glass, metal, textiles, blades, sharps, etc.) can be treated by the Sterilwave system which records the entire process in order to ensure full traceability of all operations (printed ticket + memory card recording + possibility of remote connection to export data in real time). Besides the efficient and rapid decontamination of waste with a microbial inactivation level of up to 8 log10 (higher than the sterilization level) on a stable and fully automated cycle of 30 minutes, Sterilwave also makes it possible to convert biohazardous waste into dry and inert waste, reducing their weight by more than 25% and their volume by 80%. This resulting material similar to municipal waste can also serve as energy-efficient secondary fuel and offers circular economy possibilities.

    PROCESS DESCRIPTION

    Through a fully automated 30-minute cycle in one single vessel and a rapid and efficient temperature rise up to 110 ° C, Sterilwave transforms infectious waste into decontaminated municipal waste.

    KEY BENEFITS

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    Efficient: microbial inactivation up to 8log10
    Compliant with all international standards

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    Safe: no irradiation risk, no pressure on the vessel, no chemicals

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    Eco-friendly: 100% electric
    No water, no liquid effluent, circular economy possibilities

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    Adapted to any type of medical waste without specific segregation
    Plastics, sharps & needles, blood bags, textiles, anatomical waste …

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    Low operating cost, easy maintenance
    Low energy consumption, low maintenance cost, one of the lowest operating costs on the market

    PROCESS DESCRIPTION

    Microbial inactivation by microwave treatment - Process description

    COMPARISON

    Incineration has been the most widely used method for treating infectious waste. However, biomedical waste incinerators release a wide variety of pollutants in the air, including organic compounds such as benzene, chlorophenols, polycyclic aromatic hydrocarbons (PAHs), vinyl chloride and dioxins, heavy metals (mercury, arsenic, cadmium, chromium, lead, etc.), acid gases (hydrogen chloride, hydrogen fluoride, sulfur dioxide, nitrogen oxides), carbon monoxide, and particulate matter such as fly ash. Pathogens can also be found in the solid residues and exhaust gases of poorly designed and poorly used incinerators.

    For the treatment of solid biomedical waste (and liquid waste packaged in suitable packaging / containers), there are alternative heat treatments so-called “low temperature” incineration by dry or humid heat. These decontamination technologies must be combined with mechanical methods such as shredding or crushing, to destroy pathogens. The shredders improve the rate of heat transfer and expose more waste surface for processing.

    As it uses the microwave technology, Sterilwave is the easiest, most efficient and economical solution to manage medical waste onsite.

    Waste management methodWaste output Weight reduction Volume reduction Immediate installation
    No specific construction required
    Zero effluents
    No polluting emissions
    DryStableSterilized
    STERILWAVE
    AutoclaveSome modelsSome models
    Incineration
    Chemical treatmentSome modelsSome models

    The best alternative to autoclave and incineration solutions – detailed comparison:

    AUTOCLAVEINCINERATIONSTERILWAVE
    TechnologyTemperature under pressure over 130 °C Require a steam-powered generatorIncineration on specific location. Require special carrier (expensive)Based on microwave technology, simple and efficient (heating at 100°-110°C) More efficient than Autoclave technology ( confirmed by WHO)
    Pressure / authorization Risk in case of error

    Working under pressure (several bars of saturated steam);
    Specific authorization to work under pressure;
    Require many maintenance tasks;
    High risk in case of human error

    NCAmbient pressure Safe to operate and maintain Limited Risk in case of Human error
    Integrated grinding systemSlow shredding <20 mm output sizeNoYes by rotate blade: 1500 RPM <10mm output size
    Disinfection efficiencyfrom 5 log to 8 log10 (depending the brand model)Complete destructionUp to 8 log10 more than 6 log 10 for virus
    Output Waste after treatmentVolume reduction up to 80%;
    Wet waste;
    Increase of the weight 20% due to water and steam
    Complete destruction AshesVolume reduction up to 80%
    Dry Waste
    Weight reduction of 25%
    Easy to recycle
    Operation costCost for energy, water, spar parts and consumablesCost for Energy, filters, maintenanceLowest running cost for consumables, energy and maintenance
    Environmental impactMedium
    Require important volume of water
    Liquid effluents
    Negative
    Pollution
    Special carrier of ashes always requested
    POPs, Toxins
    Positive
    On-site waste treatment
    No effluents
    Volume and weight reduction of the treated waste
    Only require electricity

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