Metal Recovery and Separation from Wastes

<p>With the development of society large amounts of solid waste (slag sludge tailing electronic waste etc.) are generated every year. Each type of waste contains specific metals such as As Cr V Cu Pb and Zn which are valuable resources and are also harmful to the environment. Recently problems regarding the environment have increasingly attracted widespread attention. If metals in wastes are not recovered effectively not only are resources wasted but the environment is also seriously polluted. The current processes for recovering metals (V Cr Ti Fe Mn Pb Zn Cu Ni Co Al As Nb Mg Au etc.) from wastes include gravimetric magnetic floatation pyrometallurgical hydrometallurgical bioleaching chlorination electrolysis methods etc. To minimize production costs and environmental impacts it will be more and more necessary to use cleaner and more economical methods to recover metals from wastes. The purpose of this Special Issue is to focus on the current state-of-the-art ideas methods technologies etc. for utilizing waste.</p>