SCIE 1P50 Lecture Notes - Lecture 5: Extended Producer Responsibility, Electronic Waste, Aqua Regia
3 Dec 2015
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It aims to ensure that businesses who place products on the market take responsibility for those products once they have reached the end of their life. The amount of gold in one tonne of pcs is equivalent to the amount of gold from 17 tonnes of unprocessed ore. According to the epa, experts estimate that recycling 1 million cell phones can recover about 24kg of gold, 250kg of silver, 9kg of palladium, and more than 9,000kg of copper. Potential to turn landfills and dumps into sources of metals. Rees, al, zn, cu, ni, fe, pb, etc . Mountain of waste- the city of guiyu is home to 5,500 businesses devoted to processing discarded electronics, known as e-waste. According to local websites, the region dismantles 1. 5 million pounds of junked computers, cell phones and other devices a year. Acid leached- aqua regia (nitric acid and hydrochloric acid) Rees- nd, dy, eu, pr & y.
