Nitrate bioreduction in redox-variable low permeability sediments
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- 作者：Sen Yana ; b ; Yuanyuan Liub ; Chongxuan Liua ; b ; chongxuan.liu@pnnl.gov" class="auth_mail" title="E-mail the corresponding author ; Liang Shib ; Jianying Shangb ; Huimei Shana ; b ; John Zacharab ; Jim Fredricksonb ; David Kennedyb ; Charles T. Reschb ; Christopher Thompsonb ; Sarah Fanslerb
- 关键词：Nitrate bioreduction ; Low permeability zone ; Subsurface redox transitional sediments ; Nitrous oxide ; Organic carbon speciation ; Kinetic model
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：539
- 期：Complete
- 页码：185-195
- 全文大小：1167 K
文摘
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Low permeability zones (LPZ) can microbially remove nitrate in groundwater.
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The rate and end product of nitrate bioreduction vary within LPZ.
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Greenhouse gas N2O can be the end product of nitrate bioreduction in LPZ.
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Organic carbon, denitrifier mass, and gene expression are the controlling factors.