改性棉秸秆对Cr(Ⅵ)吸附性能的研究  

Study on Adsorption of Cr(Ⅵ) by Modified Cotton Straw

作　　者：吕喜风 吴迁川 雷高伟 李旭[4] Lu Xifeng Wu Qianehuan Lei Gaowei Li Xu(Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of XPCC, Alar, Xinjiang 843300 College of Life Sciences, Tarim University, Alar, Xinjiang 843300 State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 College of Information Engineering, Tarim University, Alar, Xinjiang 843300)

机构地区：[1]新疆兵团南疆化工资源利用工程实验室,新疆阿拉尔843300 [2]北京化工大学化工资源有效利用国家重点实验室,北京100029 [3]塔里木大学生命科学学院,新疆阿拉尔843300 [4]塔里木大学信息工程学院,新疆阿拉尔843300

出　　处：《塔里木大学学报》2017年第3期103-109,共7页Journal of Tarim University

基　　金：塔里木大学校长基金项目(TDZKQNZD201501);塔里木大学大学生创新创业训练计划项目(2016027);北京化工大学化工资源有效利用国家重点实验室开放课题(CRE-2015-C-111)

摘　　要：本文利用本地棉花秸秆,经过氢氧化钠预处理以后,在超声波作用下用二硫化碳进行化学改性,制得改性棉秆吸附剂;控制单一因素的条件下,研究各个因素对吸附性能的影响,通过正交试验确定最优工艺水平组合,结果显示,pH值为1.50、吸附时间为120 min、吸附剂量0.3 g、吸附温度55℃,在此条件下,吸附效率和单位吸附量的效果最好。After pretreated with sodium hydroxide, the local cotton straw was chemically modified with carbon disulfide under the ac- tion of ultrasonic wave to obtain the modified cotton stalk adsorbent. The effects of various factors on the adsorption performance were studied under the condition of controlling single factor and the optimum process level combination was determined by orthogonal test. The results show that the modified cotton has the best adsorption effect at the pH value of 1. 5, adsorption time of 120min, adsorption dose of O.3g and the temnerature of 55℃.

关 键 词：棉花秸秆 吸附 铬离子 

分 类 号：TQ425.236[化学工程]