4GUPTA V K,SHRIVASTAVA A K,JAIN N. Biosorption of chromium(VI) frbm aqueous solutions by green algae spimgyra species [ J ]. Water re- search ,2001,35(17) :4079 -4085.
5YANG J B,VOLESKY B. Biosorption of uranium sargassum biomass [ J ]. Water research, 1999,33 ( 15 ) :3357 - 3363.
6LI H Z, SHAN W Y, YEE T F. Bioaccmnulation of nickel by various scenedesmus species in cultural solution containing nickel[ J ]. Aeta botan- ica sinica,2002,44(8) :978 -982.
7BROWN M J,LESTER J N. Metal removal in activated sludge:The role of bacterial extracell~ar polymers [ J ]. Water research, 1973,13 (9) : 817 - 837.
8MATHEICKAL J T,YU Q M,WOODBURN G M. Biosorption of cadmium (11) from aqueous solution by pre-treated biomass of marine alga Durv//- laea ootatorum[ J ]. Water research. 1999.33 (2) :335 - 342.
9AKSUN Z, KUTSAL T, GUN S, et al. Investigation of biesorption of Cu (11) ,Ni(11) and Cr(VI) ions to activated-sludge bacteria[J]. Environ- mental techology, 1991,12 (12) :915 - 912.
10YU Q M,MATHEICKAL J T,YIN P H,et al. Heavy metal uptake capaci- ties of common marine macro algal biomass [ J ]. Water r~..arch, 1999,33 (6) : 1534 - 1537.