Polycysteine and other polyamino acid functionalized microfiltration membranes for heavy metal capture

Article Abstract:

A polyethylene-silica membrane treated with polycysteine is used to remove and recover toxic heavy metals from aqueous solutions containing Pb (II), Hg(II), and Cd(II). The results are charted and compared to removal results when using plain silica and cellulose membranes.

United States, Primary nonferrous metals, not elsewhere classified, Lead, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Water Treatment Chemicals, Kentucky, Cadmium, Mercury, Statistical Data Included, Lead products, Water purification equipment and supplies industry, Water treatment equipment industry, Mercury (Metal)

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Could flame retardants deter electronics recycling?

Article Abstract:

Stockholm University's Andreas Sjodin and colleagues report that when electronic goods are dismantled, they emit flame-retardant additives that are 2 to 3 times greater than the amount produced in other work environments. There are few regulations that cover flame-retardant chemicals, and some of these compounds tend to bioaccumulate. The article details the risks of exposure to the additives, which include polybrominated diphenyl ethers.

Sweden, Research and Testing Services, Scientific Research and Development Services, Pollutants produced & recycled, Flameproofing Chemicals NEC, Research & Development-Universities, Brief Article, Environmental aspects, Safety equipment industry, Fire prevention equipment industry, Fireproofing agents, University research, Stockholm University, Sjodin, Andreas

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