When science advances, cities and business enterprises grow in tandem. As human population in cities increases, the amount of waste also increases exponentially. Therefore, we should discover scientific means for properly handling this waste. If not, our natural environment will decay and diseases will spread. We must strive as much as possible to recycle and
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Metals are valuable materials that can be recycled again and again without altering their properties. Scrap metal are quite valuable, which motivates people to collect it for sale to recycling companies. According to the American Iron and Steel Institute (AISI), steel is the most recycled material on the planet. The other highly recycled metals include
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Waste collection is a fundamental element of a municipal solid waste management system. The main goal of a waste collection strategy is to collect in a timely and economical manner, as much correctly source separate waste as possible, in order to ease the subsequent waste sorting and/or treatment stage with the aim to maximize re-use
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