As shown in Table 1, the total profit of recycling WPBs is up to
2260 CNY t1, confirming the feasibility of recycling WCDs by hydrometallurgical
method. The profit of Al is calculated based on the
price of waste Al metal, and the profit is 860 CNY t1 exclusion ofthe profit of Al. Hydrometallurgical method is relatively environmentally
friendly and is more exact, more efficient and more easily
controlled. Besides the economic benefits, recycling WPBs possesses
considerable environmental and social benefits by displacing
partially virgin plastics and reducing wastes that go to incineration
and landfill and thus decreasing the environmental pollution.