(1) Recyclable substances refer to unpolluted domestic garbage suitable for recycling and resource utilization, such as paper, plastic, glass, metal, etc.
(2) Hazardous wastes refer to domestic wastes that directly or potentially endanger human health or the natural environment, including waste rechargeable batteries, waste button cell, waste lamps, waste medicines, waste pesticides (containers), waste paints (containers), waste daily chemicals, waste silver products, etc.
(3) Kitchen garbage refers to organic garbage such as kitchen garbage generated in the production process of catering operators and unit canteens, kitchen garbage generated in residents' family life and perishable garbage generated in bazaars;
(4) Other garbage refers to other domestic garbage except recyclables, hazardous wastes and kitchen garbage, such as paper, plastic, glass, metal, fabric and wood which are mixed, polluted and difficult to classify.