An estimated 2.5 billion to 4 billion metric tons of wastes are collected worldwide. These wastes are treated in four different methods: disposal in uncontrolled and illegal deposits, disposal in controlled landfills, incineration, and recycling (“From Waste to Resource,” 2006)
According to the Global Development Research Center (2003), the volume of wastes is on an upward trend; more and more waste will be produced in the coming years. This poses risks to the environment and the human health. Therefore, proper management of these wastes is important. Looking at the four methods of waste treatment, recycling is the best method ...
