Chitosan Complexes Eliminate Chloroform and Carbon Tetrachloride in Drinking Water

This paper introduced the preparation methods of chitosan and its complex. It focuses on drinking water treatment, eliminating products causing by chlorine disinfect (Chloroform, Carbon tetrachloride). The results showed that all the chitosan granule, chitosan- activated carbon complex and activated carbon had certain adsorption ability to the chloroform and carbon tetrachloride. Before 40 min, the adsorption rate was 80% or so, but at 60 min, the adsorption rate suffered a decline apparently, or even occurred the negative adsorption.