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Food Waste Anaerobic Digestion Enameled Tank with Biogas Holder

Enameled bolted tanks are currently the mainstream technology for anaerobic digestion of food waste (such as kitchen waste). They are prefabricated in factories and assembled on-site, offering significant advantages over traditional concrete or welded tanks in terms of construction time, corrosion resistance, and future capacity expansion.

    description

    Food waste is characterized by "four highs": high water content, high organic matter content, high oil content, and high salt content, as well as its unique properties of being easily perishable and easily acidified. These characteristics directly determine the technological difficulty and equipment selection requirements in anaerobic fermentation treatment (which is why enamel bolted tanks need to have extremely strong corrosion resistance and sealing performance).

    应用 食品 厌氧

    Glass fused to steel is a permanent, molecular bond created by fusing a specially formulated silica-based glass enamel to a base sheet of steel at very high temperatures (around 820°C / 1500°F) ,combines the advantages of both materials -- the strength and flexibility of steel and excellent anti-corrosion properties of glass.

    Specification

    Coating thickness

    250~450um

    pH range

    Standard grade 3~11; Special grade 1~14

    Coating process

    Standard 2 coats 2 fire; 3 coats 3 fire available

    Hardness

    6.0 Mohs

    Elasticity

    500KN/mm

    Service life

    More than 30 years

    In response to the characteristics of food waste being high in oil, salt, and organic matter, this enameled bolted tank has the following advantages:
    1.Strong corrosion resistance
    The porcelain glaze has a smooth, chemically inert surface, which can resist long-term corrosion from the high concentrations of organic acids and hydrogen sulfide produced during food waste fermentation.
    2.Excellent sealing
    Bolted connections combined with specialized sealant effectively maintain the anaerobic environment inside the tank, preventing oxygen infiltration and ensuring the activity of methanogens.
    3.Flexible construction
    Installation is less affected by weather and has a short cycle. It can be flexibly customized according to project scale, and can be easily expanded, disassembled, or relocated after completion.
    4.Long service life
    The enamel coating is wear-resistant and aging-resistant, and its designed service life is typically over 30 years.
    5.Integrated Design
    The tank top can be integrated with a double-membrane flexible gas holder, realizing integrated fermentation gas production and storage, saving space.

    enamel tank with biogas holder
    (GFS tank with biogas holder)

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