A Development And Application Of The Modified The Bentonite Chitosan Water Treatment Agent

A safe water purification sorbent based on bentonite loaded chitosan was developed .The physical and chemical characteristics and the adsorbab- ility removing micropollutants of the sorbent were studied.In our country natural bentonite and the chitosan resources are abundant. Develop the chitosan and changed bentonite water sorbent to have the extensively applied foreground. This text based SiChuang SanTai bentonit, preparation of Chitosan loaded bentonite by carbon-entraining roasting sorbent and as to it' s carried on the token. Chitosan loaded bentonite by carbon-entraining roasting sorbent is a new liquid waste processing technique, it is opposite in make use of to change bentonite and the adsorbent of the chitosans to have the liquid waste processing ability to strengthen alone. join the quantity smaller, sink to decline the shorter advantage of time, and this liquid waste processing technique have the economy energy, sweeping free from pollution etc. characteristics.Chitosan loaded bentonite by carbon-entraining roasting sorbent under the condition of PH=7, to the phenol aqua the phenol does away with the rate to attain above 80%; Do away with the rate to the dyestuff waste water under the condition of PH=3 big in 99%, do away with the rate to the high density artesian well liquid waste processing COD big in 80%.Experiment the enunciation: (1)Use to bentonite by carbon-entraining roasting sorbent to change to change sex to the bentonite under the adequacy of the temperature, ability bentonite of valid aggrandizement bentonite of ratio surface, the change surface structure, raise to adsorb the ability to the pollutant; (2)Make sure the best roasting to burn time as 2 hour, 600 °Cs of the best reaction temperature, the best join the active carbon to measure to 4%. (3)The choice of the PH value handles a processing waste water influence to the water very big. (4) Chitosan loaded bentonite by carbon-entraining roasting sorbent to adsorb the ability strong, extended to adsorb the waste water in the scope of the pollutant, can reduce the amount of devotion of the adsorbent.