The main categories of hazardous waste include: waste batteries, waste lamps, waste medicines, waste chemicals, waste silver, waste film and waste photographic paper.
The most commonly used disposable dry batteries are mercury-free and cadmium-free, and basically contain no heavy metals. They are environmentally friendly batteries and can be treated as other garbage. Nickel-cadmium batteries, lead-acid batteries and button cell are all hazardous wastes because they contain heavy metals.
Because most cosmetics do not meet the harmful standards stipulated by the municipal environmental protection department, they do not belong to harmful waste and can be put into other garbage. However, it is worth noting that nail polish, nail polish remover, hair dye and other beauty products all contain a certain amount of harmful ingredients, so they are classified as hazardous waste.
When hazardous wastes are put into use, it should be noted that pressure tanks such as pesticides should be put down gently and cannot be squeezed. Waste lamps, mercury sphygmomanometers, mercury thermometers and other fragile and harmful wastes should be kept intact, clean and dry to prevent breakage. It can be packaged or wrapped together and then put into a hazardous waste collection container. Waste chemicals containing liquids, such as paints, pesticides and hair dyes, should be put together with packaging materials to prevent leakage and pollution.