文献类型：期刊文献

英文题名：Accelerated CO2 reduction to methane for energy by zero valent iron in oil reservoir production waters

作者：Ma, Lei[1,2];Zhou, Lei[1,2];Mbadinga, Serge Maurice[1,2,4];Gu, Ji-Dong[3];Mu, Bo-Zhong[1,2,4]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Appl Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Univ Hong Kong, Sch Biol Sci, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China;[4]Shanghai Collaborat Innovat Ctr Biomfg Technol, Shanghai 200237, Peoples R China

年份：2018

卷号：147

起止页码：663

外文期刊名：ENERGY

收录：;EI(收录号：20180704781727);WOS:【SCI-EXPANDED(收录号:WOS:000429391100053)】；

基金：The authors are grateful to the management of Shengli Oilfield for sampling support. This work was supported by the National Science Foundation of China (No. 41530318, 41403066), the Research Foundation of Shanghai (No. 15JC1401400), and the Fundamental Research Funds for the Central Universities of China (No. 222201717017, 222201414029).

语种：英文

外文关键词：CO2 biotransformation; Methanogenesis; ZVI; Oil reservoir; Greenhouse gas; Energy recovery

摘要：We assessed the microbiological reduction of carbon dioxide into methane bioenergy through biochemical reaction by addition of zero valent iron (ZVI) as an alternative electron donor in oil reservoir production waters under strictly anaerobic conditions. Enhanced methane production was observed in all the treatments amended with ZVI compared with the controls. The outcome of the microbial community (Illumina Next Generation Sequencing) analysis indicated that CO2-reducing methanogens were closely related to Methanothermobacter spp. responsible for the production of methane. Moreover, the detection of FeCO3 in the culture medium amended with ZVI at the end of the experiment, characterized by X-ray Photoelectron Spectroscopy (XPS), indicated a potential CO2 transformation via mineralization under the investigation conditions with simultaneous methane production. This study offers an alternative strategy for carbon dioxide reduction into methane for energy and also a potential possibility for carbon dioxide reducing and subsequently clean bioenergy recovery in oil reservoirs. (C) 2018 Elsevier Ltd. All rights reserved.