For different types of waste have their own processing technology. There are also specific methods of extraction from the pile of waste or other material. For example, the steel and iron for recycling enterprises are extracted using magnets. In many countries there is a household waste sorting. Citizens distribute their waste in separate containers for paper, plastic, glass, etc.
Metals – material that is recycled by melting. Particularly advantageous recycling of valuable non-ferrous metals (aluminum, copper, tin). Recycle not only scrap metal, but also technical details, such as processors and chips that contain gold. Such debris is sorted by size, crushed and poured acid in which the metals are dissolved. Gold under the influence of the propellant and of the reducing agent is deposited, and other metals from solution is isolated by separation.
Waste glass and plastic is also melted. Method of recycling get the following plastics: polyvinyl chloride, polypropylene, polyethylene of high and low pressure, polystyrene, polycarbonates, polyamides and others.
Clothing made of artificial materials can be used in the production of secondary plastics. Natural fabrics in the processing of crushed, soaked and discolor. The thus obtained raw material is used for the production of banknotes or high quality art paper for painting in watercolor or pastel.
Shoes during processing is separated into its components: the outsole, the upper, buckles, etc. Each material is processed separately. Much success in the processing of the shoes has achieved NIKE, which gives the buyer a discount when you buy new shoes, if he will bring it to the store your old sneakers.
Waste paper, i.e. all kinds of paper waste, used in the production of newsprint, packaging and toilet paper, various types of paperboard and packaging non-food items.
Incineration is another method of recycling. In this case, the objective is to produce thermal energy.
Unfortunately, in Russia still used this method of waste disposal as landfill. This method is dangerous to the environment because many of the substances from appliances, batteries, energy saving bulbs are toxic. Once in the soil, they penetrate into groundwater and can poison a large area.