1. US Environmental Protection Agency, Treatability manual, vol. 1, Washington, DC: EPA, 1988. p. 4.11–4.12.
2. Environmental sources and emission handbook,1976
3. Waste water treatment;Patterson,1977
4. Activated carbon adsorption of heavy metals from single and multi-component systems;Bhattacharyya;Environ. Prog.,1987
5. Combined removal of chromium, cadmium and nickel from wastes;Higgins;Engg. Prog.,1984