%0 Journal Article
%T Biosorption of Pb2+ by Bacillus cereus Biomass<br>蜡状芽孢杆菌Bacillus cereus吸附铅的研究
%A PAN Jian hua
%A LIU Rui xia
%A <br>潘建华
%A 刘瑞霞
%J 环境科学
%D 2004
%I 
%X In this paper, the potentiometric titration and the sorption experiments were applied to investigate the biosorption behavior of Pb2+ on Bacillus cereus biomass. It was shown that the biosorption capacities increased with increasing pH from 3 to 7, and the higher concentration of the biomass in solution was favorable to the sorption of Pb2+. Langmuir model simulated the adsorption data of Pb2+ ion very well, and the saturated sorption capacity for Pb2+ ion achieved 36 7mg·g-1 dry biomass. According to the result of the potentiometric titration, the Gran plots for the hydroxide back titration of biomass suspension systems were utilized to derive the specific volume of titrant at the equivalence point (Ce), furthermore, the total surface site concentration was calculated.
%K Bacillus cereus
%K biosorption
%K lead<br>蜡状芽孢杆菌
%K 生物吸附
%K 铅
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=E2288C761954992A&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=43608FD2E15CD61B&eid=954CE65414DD94CA&journal_id=0250-3301&journal_name=环境科学&referenced_num=15&reference_num=8