4CJ·Wiliams, D. Aderhold, etal. Comaprison between biosorbents for the removal of metal ions from aqueous solution [J]. Water Research, 1998, 31(1): 216-224.
5Kratoohvil D, Pimentel P F, Volesky B. Rmoval of trivalent chromium by seaw eed biomass. Department of CheimcaI Engineering 2002.
6Sag Y, Kaya A.Kutsal T. Biosorption of lead(Ⅱ), nickel(Ⅱ) and copper(Ⅱ) on Rhizopus arrhizus from binary and ternary metal mixtures[J]. Sep. Sci.Technol, 2000, 35, 2601-2617.