The anaerobic fermentation process of food waste refers to the process in which the organic matter in the waste is degraded from high molecular material to small molecular material under the action of anaerobic bacteria, and then transformed into food biogas.
The biogas produced by anaerobic fermentation degradation of kitchen waste can be converted into electric energy and heat energy by on-line biogas analyzer. The electric energy can be connected to the power grid for production and domestic use. The heat energy can supplement part of the heat demand of municipal heating facilities after being supplied to the waste treatment equipment itself, so as to achieve a win-win situation of economic and social benefits. The biogas slurry produced by fermentation can be used as liquid organic fertilizer in agricultural irrigation, garden planting and other fields after denitrification, desalination and desulfurization. Biogas residue can also be used as fertilizer after aerobic composting, so as to realize the reduction of waste and resource treatment.
The advantages of anaerobic fermentation technology are the reduction of waste, good resource treatment effect, and the kitchen biogas power generation can be used as new energy to supplement the existing conventional energy. There is no odor escaping in the process of anaerobic fermentation, and there is no secondary pollution after fermentation, which is highly accepted by the public. The technology is mature and has been applied in many projects in China.
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2021-04-16
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