Preparation of chitosan modified bentonite was studied as well as process conditions of ammonia nitrogen wastewater treatment, so as to improve the treatment effect. With sodium base bentonite as raw material, chitosan as the modifier, chitosan modified bentonite was prepared. Then prepared bentonite was used to treat ammonia wastewater; effect of modifier addition amount, stirring rate and p H on the adsorption of ammonia nitrogen removal rate was investigated. The results show that ammonia nitrogen remova...