1, red trash can: The red trash can usually represents harmful waste. Hazardous wastes include waste batteries, waste cathode fluorescent lamps, waste silver products, waste film and products, waste paint and waste mineral oil. These wastes are harmful to human health and the environment and need special treatment.
2. Blue trash can: Blue trash can usually represents recyclables. Recyclable materials include paper, plastic, glass, metal and cloth. These items have high recycling value, which can be recycled and reduce the waste of resources.
3. Green trash can: Green trash can usually represents kitchen garbage. Kitchen waste includes leftovers, melon peels and stones, coffee grounds, tea grounds, vegetable stems and leaves, etc. These wastes can be composted and converted into fertilizers to provide nutrition for agricultural production.
4. Yellow trash can: Yellow trash can usually represents medical waste. Refers to the infectious, toxic and other harmful wastes directly or indirectly produced in medical treatment, prevention, health care, scientific research and teaching. Medical waste mainly comes from hospitals, clinics, CDC, laboratories, pharmacies and other medical and health institutions.
5. Black trash can: Black trash can usually represents other garbage. Other wastes include wastes other than hazardous wastes, recyclables and kitchen wastes, such as brick and tile ceramics, toilet paper, diapers and cat litter. These wastes will be sent to waste incineration plants or landfills for treatment.