标题:Research on the Cr (VI) Absorption by Floc-type Biosorbent AR
作者:Li Qiang; Han Sheng; Wang Yuanxiu; Ye Chunjiang; Wang Fengshan; Qi Qingsheng; Cui Haoran
通讯作者:Li, Q
作者机构:[Li Qiang; Han Sheng; Wang Yuanxiu; Ye Chunjiang] Univ Jinan, UJN, Sch Med & Life Sci, Jinan, Peoples R China.; [Wang Fengshan; Qi Qingsheng; Cui Ha 更多
会议名称:International Conference on Manufacturing Science and Technology (ICMST 2011)
会议日期:SEP 16-18, 2011
来源:MANUFACTURING SCIENCE AND TECHNOLOGY, PTS 1-8
出版年:2012
卷:383-390
页码:3029-3034
DOI:10.4028/www.scientific.net/AMR.383-390.3029
关键词:Floc-type biosorbent; Cr(VI); Glycocalyx; Desorption
摘要:Biosorptions of Cr (VI) by the floc-type biosorbent AR (with glycocalyx) and AR (without glycocalyx) were compared. The initial pH was important for biosorption, and the optimum effect on Cr (VI) biosorption was acquired within initial pH 0.5-1.0. With the pH increasing, the effect on Cr(VI) biosorption was reduced, and when the initial pH exceeded 3.0, the effect on Cr (VI) biosorption was in an equilibrium of low levels. Biosorbing Cr (VI) of different concentrations, the maximal absorbing capacity of AR (with glycocalyx) and AR (without glycocalyx) was 187.36 mg center dot g(-1), 56.1 mg center dot g(-1) respectively, and the glycocalyx adhering on the cell improved the absorption obviously. The absorbed Cr (VI) could be recovered by desorption, and the desorption rate of AR (with glycocalyx) and AR (without glycocalyx) reached 67.9% and 62.3% separately. The two biosorption processes conformed Langmuir and Freundlich isotherm adsorption equations, so we could presume that the progress of biosorptions was reversible adsorption and irreversible adsorption simultaneously, however the reversible adsorption was more important in the biosorption and the adsorption belonged to physical adsorption. Besides Agrobacterium sp. fermentation broth could be used as bioflocculant, Agrobacterium sp. could be applied as biosorbent, and the glycocalyx improved the absorption obviously, then both the bioflocculant and biosorbent were promising biological products
收录类别:CPCI-S;EI;SCOPUS
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-83755196806&doi=10.4028%2fwww.scientific.net%2fAMR.383-390.3029&partnerID=40&md5=203d5546d053916a271206f7946de564
TOP