WST technology for sorting mixed MSW. WST process is designed to sort the mixed MSW by using a number of special mechanical devices. The principal of WST technology is based on the differences of physical characteristics of various waste materials which can be separated in a water stream. The MSW is automatically sorted and classified by its nature of each waste class into six major categories: 1) dust and sands; 2) magnetic metals such as iron cans, screws and bottle caps; 3) heavy materials including rubbles, broken glasses and bones; 4) combustibles such as paper and textiles; 5) plastics such as polythene bags and packaging materials and 6) organic substances including kitchen wastes such as fruit and vegetable peels, small bones and other organic refuse. The precision rate of sorting reaches 90% and the sorted materials will be converted into commercially viable products by other processes. These products include organic fertilizers, renewable building materials, RDF and plastic-derived fuel oil..
