Refuse treatment method and apparatus for separating solid and liquid and separating organics and inorganics

A refuse treatment method for separating solid and liquid and separating organics and inorganics, comprising the steps of:

• 1) subjecting municipal domestic refuse to a bag-breaking treatment and water washing;
• 2) performing a washing treatment on the municipal domestic refuse after the bag-breaking treatment with water to wash off water-soluble organics in the municipal domestic refuse;
• 3) performing a solid liquid separation treatment on the washed municipal domestic refuse;
• performing a sorting treatment on separated solid refuse;
• performing an anaerobic treatment on separated refuse water after precipitation to convert organics in the refuse water to marsh gas, and utilizing clear water after a cleaning treatment;
• and
• continuing to perform spray washing on the solid refuse in the sorting treatment, performing an anaerobic treatment on washed-off refuse water after precipitation to convert organics in the refuse water to marsh gas, and utilizing clear water after a cleaning treatment;
• 4) performing a cracking treatment and then a dehydration treatment on sorted water-insoluble organic refuse, performing a pyrolysis treatment in a hypoxic state to produce biochar, performing an anaerobic treatment on sewage generated during the dehydration treatment to convert organics in the sewage to marsh gas, and utilizing clear water after a cleaning treatment;
• mixing sorted inorganic refuse subjected to cracking and silt precipitated from the refuse water for utilization;
• and
• directly recovering sorted plastics, metals, and batteries;
• and
• 5) performing a dehydration treatment on marsh gas residue after marsh gas is generated in the refuse water, and performing a pyrolysis treatment in a hypoxic state to produce biochar;
• and performing an anaerobic treatment on sewage generated in the dehydration of the marsh gas residue to convert organics in the sewage to marsh gas, and collecting the marsh gas generated in the anaerobic treatment for utilization.