化工环保2013，Vol.33Issue(4)：344-348,5.
硝酸改性活性炭的制备及其对Cr(Ⅵ)的吸附性能
Preparation of HNO3-Modified Activated Carbon and Its Adsorption Capability to Cr(Ⅵ)
摘要
Abstract
Granular activated carbon was modified with HNO3 and used to treat chromium-containing wastewater.The effects of adsorption time,solution pH,adsorbent dosage on the Cr(Ⅵ) adsorption capability of the modified activated carbon were studied.The experimental results show that:The specific surface area and the total quantity of functional groups of the modified activated carbon is increased significantly; The Cr(Ⅵ) removal rate is increased with the prolonging of shaking time; When the Cr(Ⅵ) mass concentration is 10 mg/L,the solution volume is 100mL,the solution pH is neutral,and the dosage of the granular activated carbon modified with 30％(volume fraction) HNO3 is 0.4 g,the maximum Cr(Ⅵ)removal rate is 98％.关键词
activated carbon/ nitric acid/ modification/ adsorption/ chromium/ wastewater treatmentKey words
activated carbon/ nitric acid/ modification/ adsorption/ chromium/ wastewater treatment分类
资源环境引用本文复制引用
丁春生,贡飞,陈姗,彭芳..硝酸改性活性炭的制备及其对Cr(Ⅵ)的吸附性能[J].化工环保,2013,33(4):344-348,5.基金项目
浙江省自然科学基金资助项目(Y5110339) （Y5110339）
浙江省公益性技术应用研究计划项目(2012C23055). （2012C23055）
