摘要
以磷酸法制备的不定型竹活性炭为原料,分析其脱除六价铬的过程,探讨吸附时间、温度、浓度和p H值对竹活性炭除铬性能的影响。结果表明,随着吸附时间和温度的增大,竹活性炭对K2Cr2O7溶液的吸附量不断上升;溶液起始浓度的提高,有利于活性炭对六价铬的吸附量和吸附速率的增大,且吸附速率与起始浓度成线性关系,速率方程为r=0.07835c-0.805。
Granule activated carbon prepared from bamboo by phosphoric acid activation was used as raw materials .The adsorption process of Cr（VI）by bamboo activated carbon was analyzed ,and the parameters such as adsorption time ,temperature,concentration and pH value were dissucssed.The results showed that adsorption capacity of Cr （ VI） increased continuously with the increase of ad-sorption time and temperature , and the increase of initial concentration benefited the improvement of adsorption amount and rate.They showed a linear relationship between adsorption rate and initial concentration ,the equation was r=0.07835 c-0.805.
出处
《福建林业科技》
2015年第1期96-99,共4页
Journal of Fujian Forestry Science and Technology
关键词
竹活性炭
磷酸
孔隙结构
吸附
activated carbon
phosphoric acid
pore structure
adsorption
