产黄青霉废菌体对铅的吸附机理研究——参与铅生物吸附的化学物质及功能团的确定

被引：17

作者：

汤岳琴

牛慧

林军

王建华

机构：

[1] 四川大学化学工程学院!四川成都,,四川大学化学工程学院!四川成都,,四川大学化学工程学院!四川成都,,四川大学化学工程学院!四川成都,

来源：

四川大学学报(工程科学版) | 2001年 / 03期

关键词：

生物吸附; 产黄青霉菌; 金属结合机理; 废水处理;

D O I：

10.15961/j.jsuese.2001.03.013

中图分类号：

O647.3 [吸附];

学科分类号：

070304 ; 081704 ;

摘要：

对产黄青霉废菌体对废水中Pb2 +的生物吸附机理进行了研究 ,主要探讨了参与吸附的细胞组分及化学功能团。对菌体的化学处理及红外光谱分析结果表明 :经脱蛋白、脱脂及脱乙酰化预处理的菌体对Pb2 +的吸附量明显增大 ;产黄青霉废菌体对Pb2 +的吸附主要发生在产黄青霉菌细胞壁上 ;细胞壁的主要成分几丁质和葡聚糖均参与了吸附过程 ;酰胺基团 (-NHCOCH3)和羟基基团 (-OH)协同作用结合Pb2 +,Pb2 +优先与酰胺基团作用

引用

页码：50 / 54

页数：5

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