海藻酸钠包埋鞘细菌及对铬离子吸附条件的研究  

Study on Sheathed Bacteria Embedded by Sodium Alginate and the Adsorption Conditions for Chromium Ion

作　　者：郑虹 邓加聪 林廉晶 崔伟斌 张雨婷 吴晓蕾 ZHENG Hong;DENG Jiacong;LIN Lianjing;CUI Weibin;ZHANG Yuting;WU Xiaolei(Fuqing Branch of Fujian Normal University, Fuqing Fujian 350300)

机构地区：[1]福建师范大学福清分校海洋与生化工程学院,福建福清350300

出　　处：《福建师大福清分校学报》2017年第5期76-82,共7页Journal of Fuqing Branch of Fujian Normal University

基　　金：福建省自然科学基金面上项目(2015J01132);福建省教育厅中青年教师项目(JA15569)

摘　　要：以海藻酸钠包埋鞘细菌制备生物吸附剂,通过单因素和正交实验研究固定化后鞘细菌S9对Cr(Ⅵ)吸附条件的效果和影响,获得其最佳的吸附条件为Cr(Ⅵ)初始浓度为30mg/L,吸附温度30℃,吸附pH 8.0,吸附时间35min,在此条件下,生物吸附剂吸附Cr(Ⅵ)的吸附率和吸附量分别为78.62%和2.39mg/g,比优化前分别提高了31.42%和0.89mg/g。The adsorption conditions of sheathed bacteriaafter immobilization on Cr(VI)of bio-adsorbent prepared withsheathed bacteriaembedded by sodium alginate were studied.And the optimum adsorption conditions for chromium ion were got by single factor and orthogonal experiments,with initial concentration Cr(VI)30mg/L,adsorption temperature30℃,the adsorption of pH8,the adsorption time35min.Under these conditions,the adsorption of Cr(VI)adsorption rateand adsorption capacity were78.62%and2.39mg/g whichincrease31.42%and0.89mg/g respectively before optimization.

关 键 词：鞘细菌 固定化 Cr(Ⅵ)吸附 条件优化 

分 类 号：X383[环境科学与工程—环境工程]