白腐菌对废弃印制电路板中重金属铅的吸附  

Study on the Disposal of Pb in Waste Printed Circuit Boards by White-Rot Fungi

作　　者：陈和祥[1] 梅艳珍[2] 

机构地区：[1]南京信息职业技术学院微电子学院,南京210046 [2]南京师范大学生命科学学院,南京210046

出　　处：《湖北农业科学》2013年第4期811-814,共4页Hubei Agricultural Sciences

基　　金：江苏省自然科学基金项目(BK2011838);南京信息职业技术学院科研基金项目(YKJ11-009)

摘　　要：为了消除废弃印制电路板中重金属铅的危害,利用高效降解性能的白腐菌对重金属铅进行了处理。在废弃印制电路板样品中含重金属铅为25.33 mg/g的情况下,分析了白腐菌吸附Pb2+的影响因素和特性。结果表明,当Pb2+的浓度为50 mg/L,pH 5,菌体培养时间为72 h,菌体生物量为6 g/L,吸附时间为6 h时,白腐菌对Pb2+的吸附率可以达到68.17%;白腐菌对Pb2+的吸附是单分子层的表面吸附过程。In order to remove Pb in waste printed circuit boards,the processing performance of heavy metal Pb by white-rot fungi,which had a strong degrading capacity,was studied.The content of Pb in the sample of waste printed circuit boards was 25.33 mg/g,and the adsorption factors and characteristics of Pb2+ by white-rot fungi were analyzed.The results showed that,under the 50 mg/L of Pb2+ concentration,pH 5,culturing for 72 hours,6 g/L of biomass,and 6 hours of adsorbing time,the adsorption rate of Pb2+ by white-rot fungi reached 68.17%,and the adsorption of Pb2+ by white-rot fungi belonged to monolayer surface adsorption.

关 键 词：白腐菌 废弃印制电路板 重金属铅 吸附 

分 类 号：S[农业科学]