2Mail P K. Dye removal from wastewater using activated carbon developed from sawdust: adsorption equilrium and kinetics[J] .J Hazard Mater, 113 : 81 - 88.
3Tahir S S. Rauf N. Removal of Fe( II ) from the wastewater of a galvanized pipe manufacturing industry by adsorption onto bentonite clay[J ].J Erviron Manage. 2004, 73: 285 - 292.
4Bhatnagar A, Jain A K. Methylphenols removal from water by low-cost adsorbents[J]. J Colloid Interface Sci, 2002, 251:371 - 376 .
5zcan A S, Erdem B, zcan A .Adsorption of Acid Blue 193 from aqueous solutions onto Na- bentonite and DTMA-bentonite[J] .J Colloid Interface Sci,2004, 280:44- 54.
