文献类型：期刊文献

英文题名：Bioremoval and recovery of metal ions by growing microalgae and via microwave assisted pyrolysis

作者：Cheng, Yanling[1,2,3]; Wang, Wanqing[1,2]; Hua, Wei[1,2]; Liu, Wenhui[1,2]; Chen, Paul[3]; Ruan, Roger[2,3]

第一作者：程艳玲;Cheng, Yanling

通讯作者：Ruan, Roger

机构：[1] Biochemical Engineering College, Beijing Union University, Beijing, 100023, China; [2] Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing, 100023, China; [3] Center for Biorefining and Department of Bioproducts and Biosystems, University of Minnesota, Minnesota, MN, 55108, United States

第一机构：北京联合大学生物化学工程学院

年份：2016

卷号：25

期号：2

起止页码：193-204

外文期刊名：International Agricultural Engineering Journal

收录：EI(收录号：20163602772213);Scopus(收录号：2-s2.0-84984630296)

基金：This work was supported International Science and Technology Cooperation Program of China (2014DFA61040, 2015DFA60170), The National High Technology Research and Development Program of China (863 Program 2014AA022002, 2015AA020200), Beijing Natural Science Foundation of China (KZ201411417038) and USDA, USDOT/DOE Sun Grants, Environment and Natural Resources Trust Fund (ENRTF), and University of Minnesota MNDrive, Serendipity Grant, Institute on the Environment, and Center for Biorefining.

语种：英文

外文关键词：Algae - Aluminum compounds - Charcoal - Copper compounds - Heavy metals - Metal ions - Microorganisms - Pyrolysis - Water pollution - Zinc compounds

摘要：Heavy metal pollution in water bodies is threatening all kinds of inhabiting organisms. In order to alleviate heavy metal burden in wastewaters, bioremovals of copper (II), zinc (II) and aluminum (III) from aqueous solutions using fresh microalgae Chlorella vulgaris were investigated. Effects of different pH value, retention time, and initial metal ions and microalgae biomass concentrations on heavy metal removals were evaluated. In appropriate conditions, 85% of copper (II), 84% of zinc (II) and 99% of aluminum (III) could be removed from the solutions by the microalgae within 20 minutes. Through pyrolysis of the microalgae used for the bio-sorption metal ions, the metals were further concentrated in the charcoal. The results showed that 97.92% Al, 98.59% Cu and 96.79% Zn stayed in the char portion. The metals in the microalgae feedstock improved the biofuel production during microwave assisted pyrolysis and reduced heating time to about half of that without biosorption metal. The results indicated that metal ion recovery by microalgae and microwave-assisted pyrolysis had prodigious potential applications.