Subcritical hydrolysis technology for organic matter sorted from domestic waste is an efficient and environmentally friendly method for harmless treatment and resource utilization. It converts organic matter into high-value energy and products under specific conditions. This technology uses subcritical water (typical temperature 200-370°C, pressure 0.5-3 MPa) as the reaction medium to hydrolyze sorted organic waste (such as kitchen waste, animal manure, sludge, agricultural and forestry straw, wood waste, and various other organic wastes) in a closed system, breaking down macromolecular bonds and ultimately transforming them into usable products. By mixing organic waste with subcritical water and utilizing the high-temperature and high-pressure conditions of the water, harmful substances are separated from the organic matter, thereby converting it into reusable resources. This technology can effectively treat various types of harmful organic waste, including chemical waste, agricultural waste, and municipal solid waste. During the hydrolysis process, the organic matter in the waste can be decomposed into reusable resources such as combustible gas, water, carbon dioxide, organic coal, and fertilizers; simultaneously, harmful substances are also decomposed into harmless byproducts, thus achieving the resource utilization of waste.

Subcritical hydrolysis technology can convert waste into "organic coal" in about 15 minutes. It possesses multiple advantages including "reduction, harmlessness, resource utilization, low carbon footprint, and distributed implementation," and has become the preferred route for organic solid waste treatment in small and medium-sized towns jointly recommended by four national ministries.
 

Subcritical Hydrolysis

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