System process for coupling pyrohydrolysis dehydration with anaerobic fermentation

The invention relates to a system process for coupling pyrohydrolysis dehydration and anaerobic fermentation, which is characterized in that organic wastes enter an anaerobic reactor and then are subjected to anaerobic fermentation to produce biogas, the produced biogas slurry is conveyed into a pyrohydrolysis reactor and is subjected to pyrohydrolysis reaction at high temperature and high pressure, and the biogas slurry is cooled by a cooler and then enters a centrifugal machine for solid-liquid separation after being subjected to pyrohydrolysis reaction. Meanwhile, in the PAM dosing tank, the PAM medicament is conveyed into the centrifugal machine through the dosing pump, and the iron-based medicament solution in the iron-based medicament dosing tank is conveyed into the centrifugal machine through the dosing pump. Therefore, the centrifugal machine can realize relatively efficient solid-liquid separation. After solid-liquid separation, biogas residues are used for preparing an organic ...