Research on Influential Factors for Adsorption of Heavy Metal Chromium (VI) by Modified Auricularia auricular-judae
Zhuo Lin · Journal of Chongqing Technology and Business University · 2012
Auricularia auricular-judae was modified for preparing adsorption agent by hydrochloric acid to adsorb Chromium(Ⅵ) in aqueous solution,the influence of the factors such as modified hydrochloric acid concentration,modifying time,modifying temperature,pH value of the solution,adsorption time and temperature on the effect of the adsorption of Chromium(VI) by modified Auricularia auricular-judae is tested,the results show that the adsorption effect is better under the condition of 5% hydrochloric acid,35 ℃ temperature and 20 hours modification,however,under the condition of temperature 30 ℃,initial Cr(Ⅵ) concentration 20 mg/L,pH value 2.0,the amount of modified Auricularia auricular-judae 2.5g/L and adsorption time 300 minutes,adsorption amount of Cr(Ⅵ) reaches 266 mg/kg,Lagergren first order kinetics model can better describe adsorption kinetics process of Cr(Ⅵ) in aqueous solution by modified Auricularia auricular-judae.