黄孢展齿革菌菌丝球上铅的解吸  

Desorption of Pb^(2+) From Phanerochaete chrysosporium Pellets

作　　者：李薇[1] 吴涓[1] 李清彪[1] 邓旭[1] 刘刚[1] 

机构地区：[1]厦门大学化学工程系,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2000年第4期481-484,共4页Journal of Xiamen University：Natural Science

基　　金：国家教委留学回国人员科研启动基金资助项目

摘　　要：报道了Ｐｂ２＋从黄孢展齿革菌菌丝球上的解吸特性．实验结果表明ＨＣｌ、ＨＮＯ３、ＮａＣｌ、Ｎａ２Ｓ２Ｏ３、ＥＤＴＡ和柠檬酸都是有效的解吸剂，以硝酸的解吸效果为最好．考察了解吸剂浓度、解吸剂用量、解吸时间对解吸效果的影响，当硝酸浓度为 ０．１ ｍｏｌ／Ｌ，解吸时间为 １０ ｈ，解吸剂用量为 ５０ ｍＬ时，解吸效果最好，解吸率达９８％以上．菌丝球重复使用四次，吸附性能没有明显变化．The desorption of Pb2+from the mycelial pellets of Phanerochaete chrysosporium with Ph2+ adsorbed on it was investigated. Pb2+ could be easily desorpted by water solution of HCl, HNO,,NaCl,Na2S2O3, EDTA and citric acid among which HNO3 is the best eluent. The effects on desorption of eluent concentration,desorption time and eluent volume were examined. The biggest Pb2+ desorption ratio of more than 98% could be obtained by putting the Pb2+ adsorbed pellets in 50 mL water solution of 0. 1 mol/L HNO, and shaking for 10 h. During 4 biosorptiondesorption circulations, the adsorption capacity of the biomass remainded nearly unchanged, around 95 %.

关 键 词：黄孢展齿革菌 铅 菌丝球 吸附 解吸 废水处理 

分 类 号：X703[环境科学与工程—环境工程] X172