Summary
Waste sorting is the process by which waste is separated into different elements. Waste sorting can occur manually at the household and collected through curbside collection schemes, or automatically separated in materials recovery facilities or mechanical biological treatment systems. Hand sorting was the first method used in the history of waste sorting. Until now this method is still used. Waste can also be sorted in a civic amenity site. "Waste segregation" means dividing waste into dry and wet. Dry waste includes wood and related products, metals and glass. Wet waste typically refers to organic waste usually generated by eating establishments and are heavy in weight due to dampness. Waste segregation is different from waste sorting. Waste segregation is the grouping of waste into different categories. Each waste goes into its category at the point of dumping or collection, but sorting happens after dumping or collection. Segregation of waste ensures pure, quality material. Sorting on the other hand will end up producing impure materials with less quality. Waste is collected at its source in each area and separated. The way that waste is sorted must reflect local disposal systems. The following categories are common: Paper Cardboard (including packaging for return to suppliers) Glass (clear, tinted–no light bulbs or window panes, which belong with residual waste) Plastics Textiles Wood, leather, rubber Scrap metal Compost Special/hazardous waste Residual waste Organic waste can also be segregated for disposal: Leftover food which has had any contact with meat can be collected separately to prevent the spread of bacteria. Meat and bone can be retrieved by bodies responsible for animal waste. If other leftovers are sent, for example, to local farmers, they can be sterilised before being fed to the animals. Peels and scrapings from fruit and vegetables can be composted along with other degradable matter. Other waste can be included for composting, such as cut flowers, corks, coffee grounds, rotting fruit, tea bags, eggshells and nutshells, and paper towels.
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