What are the four main categories of domestic waste?

Acceptable materials: including waste paper, waste plastics, waste metal, waste glass and other domestic garbage that are not polluted and suitable for recycling and resource utilization.

Waste paper: newspapers, magazines, books, leaflets, envelopes, food and articles and other packaging cartons, shopping paper bags, egg cartons, beverages and milk and other paper packaging, instant noodle boxes, disposable paper cups, disposable paper tableware, computer printing paper, copy paper, fax paper, notes, calendars, notebooks, cartons, etc.

Waste plastics: plastic bags, plastic tableware (lunch boxes, bowls, spoons), plastic fresh food boxes, fresh-keeping bags (films), films, plastic bottles, plastic edible oil cans, plastic pots and barrels and other containers, plastic daily necessities, plastic stools and chairs, plastic stationery, plastic toys, plexiglass products, CD-ROM tapes, plastic films, protective films, toothbrushes, toothpaste skins, styrofoam, etc.

Scrap metal: cans, cans, hangers, stationery, toys, tableware, utensils, furniture and other metal daily necessities.

Waste glass: glass bottles, glasses, glass tabletops, glass coffee tables, glass windows and other glass products.

Food waste: refers to the organic perishable waste generated by households. It includes food trade, discarded and leftover food in the production process, such as rice, pasta, expired food, meat, fish and shrimp (can contain shells), crab shells, shells, bones, vegetables, melons and fruits, skin pits, bagasse, tea residues, durian shells, coconut shells, and branches (leaves) discarded from family potted plants.

Hazardous waste: refers to substances that cause direct or potential harm to human health or the natural environment. Including waste drugs and their packaging, waste pesticides and disinfectants and their packaging, waste paints and solvents and their packaging, waste mineral oil (waste cosmetics, etc.) and their packaging, waste film and waste photo paper, waste fluorescent tubes, waste thermometers, waste blood pressure monitors, waste rechargeable batteries, waste button batteries and other waste nickel-cadmium batteries and mercury oxide batteries, as well as other electronic hazardous wastes.

Other garbage: refers to other domestic garbage other than receptible materials, kitchen waste, and hazardous waste.

Domestic garbage can generally be divided into four categories: garbage, kitchen waste, hazardous waste and other garbage.

Garbage mainly includes five categories: waste paper, plastic, glass, metal and cloth. Waste paper: mainly including newspapers, periodicals, books, various packaging paper, office paper, advertising paper, cartons, etc., but pay attention to paper towels and toilet paper due to the strong water solubility.

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

It mainly includes all kinds of glass bottles, broken glass pieces, mirrors, light bulbs, thermoses, etc. Metal objects: mainly including cans, canning boxes, toothpaste skins, etc.

Fabrics: mainly include discarded clothes, tablecloths, face towels, school bags, shoes, etc.

Food waste includes food waste such as leftovers, bones, roots and leaves.

Hazardous waste is waste that is not properly disposed of and may cause harm or potential harm to the environment. For example, fluorescent tubes, dry batteries, various chemical batteries and other items containing harmful substances.

Other garbage includes bricks, ceramics, muck, toilet waste paper and other difficult wastes in addition to the above types of garbage, and the use of sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.

Garbage sorting is divided into four categories:

a) Can be ** garbage.

It refers to the domestic garbage that can be recycled, which can be put into the [can be recycled]. Including waste paper, waste plastics, waste glass products, waste metal, waste fabrics, and others (circuit boards, wires, sockets, wood building blocks, cutting boards).

b) Hazardous waste.

It refers to the garbage that has a great impact on the safety of illness and can be put into [hazardous garbage]. These include chemical metal batteries, waste fluorescent tubes (energy-saving lamps), waste medicines, hair dyes, nail polish (containing mercury), and pesticides (disinfectants).

c) Wet garbage.

Refers to perishable garbage, which can be put into [wet garbage], including food waste, leftovers, expired food, melon peel and fruit pits, flowers and plants.

4) Dry garbage (other garbage).

Refers to other garbage other than the above three types of garbage, which can be put into [dry garbage], including napkins, toilet paper, diapers, cat litter, dust, mirrors, disposable tableware, and bamboo products.

Garbage is a renewable resource, which refers to the waste that is not polluted and suitable for recycling.

Mainly include: paper (newspapers, leaflets, magazines, used books, cardboard boxes and other uncontaminated paper products, etc.), metals (iron, copper, aluminum and other products), glass (glass bottles, jars, flat glass and other glass products), cotton and linen, plastic products other than plastic bags (foam, plastic bottles, hard plastics, etc.), rubber and rubber products, milk cartons and other Tetra Pak packaging, beverage bottles (cola cans, plastic beverage bottles, beer bottles, etc.), etc.

Delivery attention: light dropping and handling; Clean and dry to avoid contamination;

The waste paper should be as flat as possible;

Please empty the contents of the three-dimensional packaging, flatten it after cleaning;

If there are sharp corners, they should be wrapped and put on.

Hazardous waste refers to the substances in domestic garbage that cause direct or potential harm to human health or the natural environment, which must be collected, transported, and stored separately, and specially safely disposed of by professional institutions recognized by the environmental protection department.

Mainly include: batteries (batteries, button batteries, etc.), waste electronic products, waste tube bulbs, expired medicines, expired cosmetics, hair dyes, insecticide containers, herbicide containers, waste mercury thermometers, waste paint buckets, waste printer cartridges, toner cartridges, etc.

Note: Please pay attention to the care when putting batteries and waste electronic products;

If there is any residue of paint buckets and pesticides, please seal them tightly and put them in;

Waste tubes, bulbs, etc. are easily damaged, please pack or wrap them with care;

Waste drugs and other packaging are put together.

As the name suggests, food waste (wet waste) is mainly leftovers from the canteen, leftovers and vegetable leaves, meat, fish and shrimp waste parts, eggshells, etc.

It mainly includes: leftovers and Western pastries and other food residues, vegetable stems and leaves, animal bones and internal organs, tea residues, fruit residues, fruit shells, melon peels, bonsai and other plant residues, waste edible oil, etc. Its main ** is home kitchens, restaurants, restaurants, canteens, markets and other industries related to food processing.

Notes: Pure liquid food waste, such as milk, should be poured directly into the drain;

Wet garbage with packaging should be removed and put into classification, and the packaging should be put into the corresponding ** or dry garbage container;

When disposing of wet waste, encourage the removal of packaging (e.g. plastic bags).

Other garbage (dry garbage) refers to other domestic garbage except for the most important things, hazardous garbage, and kitchen waste, that is, the garbage mainly collected and processed by the current sanitation system.

Mainly include: contaminated and non-renewable paper (paper cups, carbon paper, pressure-sensitive paper, receipt paper, postcards, photo albums, toilet paper, diapers, etc.), contaminated or other non-recyclable glass, plastic bags and other contaminated plastic products, waste clothes and other textiles, worn-out ceramics, feminine hygiene products, disposable tableware, shells, cigarette butts, dust, etc.

Putting caution: drain as much as possible;

Household waste of unidentifiable categories is disposed of in dry waste containers.

Domestic garbage is divided into 4 categories, namely: ** garbage, hazardous garbage, kitchen waste, and other garbage.

1. It can be **garbage.

Acceptable material refers to domestic waste suitable for utilization and resource utilization. The main varieties of materials include: waste paper, waste plastic bottles, waste metal, waste packaging, waste textiles, waste electrical and electronic products, waste glass, waste paper, plastic and aluminum composite packaging, etc.

2. Hazardous garbage.

Hazardous waste refers to domestic waste that causes direct or potential harm to human health or the natural environment. Common hazardous waste includes waste lamps, waste paint, pesticides, waste cosmetics, expired medicines, waste batteries, waste light bulbs, waste water silver thermometers, etc., and hazardous waste needs to be safely disposed of in accordance with special and correct methods.

3. Kitchen waste.

Kitchen waste refers to the garbage generated in residents' daily life and food processing, catering services, unit meals and other activities, including discarded leaves, leftovers, leftovers, peels, eggshells, tea residues, bones, etc., which are mainly home kitchens, restaurants, restaurants, canteens, markets and other industries related to food processing.

4. Other garbage.

Other garbage refers to the garbage that has less harm and no reuse value, such as construction waste, domestic garbage, etc., which are generally treated by landfill, incineration, sanitary decomposition, etc., and some can also be solved by biological decomposition, such as earthworms.

01 Domestic waste can generally be divided into four categories: garbage, kitchen waste, hazardous waste and other garbage. Processing:

Incineration, composting, landfilling, useful substances. Useful ingredients such as waste paper, ferrous and non-ferrous metals, plastics, fabrics, glass ceramics, leather and rubber in garbage should be utilized. This is also one of the important measures to protect the environment.

**Methods include gravity, flotation, magnetic separation, electrostatic separation, etc.

The first type, can be ** garbage, refers to those garbage that can be recycled after simple treatment. Waste paper, plastic, glass, metal and cloth are the main components of garbage.

The second is kitchen waste. Food waste is just like the word and includes leftovers and leaves from the kitchen. This type of waste usually needs to be composted on site by biotechnology, and then can be used to make organic fertilizer for crops, generally tons of organic fertilizer can be made per ton of kitchen waste.

The third type is hazardous waste. Hazardous waste refers to waste that is harmful to the environment or people, such as waste water, silver, thermometers, and expired medicines. This type of garbage needs to be treated with special safety, otherwise it will cause great harm to the environment, and it also needs to be handled with care when discarded to prevent harmful substances from leaking out and endangering the environment and people's health.

In addition to the above, other garbage also includes toilet waste paper, bricks, ceramics, muck and other wastes that are difficult to use and are not urgently needed. This type of waste is usually used in sanitary landfills to effectively reduce the pollution of water, soil and air environment.

The large increase of municipal solid waste has made garbage disposal more and more difficult, and the resulting environmental pollution and other problems have gradually attracted widespread attention from all walks of life. In order to realize the industrialization, recycling, reduction and harmlessness of municipal solid waste, China must face mixed collection, low content and calorific value of renewable substances, high moisture content and biodegradable organic content of domestic waste. In response to these problems, a variety of technologies have also been applied.