The discharge is divided into three times, which is defined as: all the garbage discharged by residents is discharged once, and it is discharged twice after being burned by the garbage treatment plant, and the remaining waste residue after the second discharge is discharged three times after being filtered, sorted and regenerated. The part of heavy metal ions discharged for the third time exceeding the standard needs to be treated harmlessly. ?

Recyclable is recyclable garbage. Paper, cardboard, glass, plastic, metal and plastic packaging, reusable itself or materials, such as newspapers, magazines, advertising leaflets and other clean paper-related materials can be recycled.

Extended data:

Recyclable range:

It mainly includes waste paper, plastics, glass, metals and textiles, hazardous waste, electronic/electrical waste and batteries, and discarded furniture waste.

Waste paper mainly includes: newspapers, magazines, books, all kinds of wrapping paper, office paper, cartons and so on. But paper towels and toilet paper are too water-soluble to be recycled.

Plastics mainly include: all kinds of plastic bags, plastic packaging materials, disposable plastic lunch boxes and tableware, toothbrushes, cups, mineral water bottles and so on.

Glass mainly includes: various glass containers. According to the recycling process, glass is divided into colorless glass, green glass and brown glass.

Metals mainly include: cans, metal cans, decorations and aluminum foil. According to the classification of recycled materials, they are iron and non-iron (generally refers to non-ferrous metals).

Textiles mainly include: discarded clothes, towels, schoolbags, cloth shoes, etc.

Hazardous wastes mainly include chemicals such as paints, pigments and various cleaning solutions, and some areas also classify battery and electronic/electrical wastes into this category.

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