Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints

This study aims to explore microbial activity evidence, composition of archaeal communities, and environmental constraints in coalbed-produced waters from the Hancheng Block, a representative region for coalbed methane development on the eastern margin of Ordos Basin, China. The investigation involv...

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Main Authors: Yuan Bao, Xueru Chen, Zhidong Guo, Zhengyan Li, Yufei Zhuang, Min Gao
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/17/20/5170
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author Yuan Bao
Xueru Chen
Zhidong Guo
Zhengyan Li
Yufei Zhuang
Min Gao
author_facet Yuan Bao
Xueru Chen
Zhidong Guo
Zhengyan Li
Yufei Zhuang
Min Gao
author_sort Yuan Bao
collection DOAJ
description This study aims to explore microbial activity evidence, composition of archaeal communities, and environmental constraints in coalbed-produced waters from the Hancheng Block, a representative region for coalbed methane development on the eastern margin of Ordos Basin, China. The investigation involves analyzing microbial community composition using 16S rRNA sequencing analysis as well as examining hydrogeochemical parameters. The results indicate that <i>Euryarchaeota</i> and <i>Thaumarchaeota</i> are predominant phyla within archaeal communities present in coalbed-produced water from the Hancheng Block. Among these communities, <i>Methanobacterium</i> is identified as the most abundant genus, followed by <i>Methanothrix</i> and <i>Methanoregula</i>. Moreover, a positive correlation is observed between the abundance of <i>Methanobacterium</i> and the levels of total dissolved solids as well as Mn; conversely, there is a negative correlation with dissolved organic carbon, Zn concentrations, and pH. The abundance of Co and Ni primarily influence <i>Methanothrix</i> while pH and Zn play significant roles in controlling <i>Methanoregula</i>. Additionally, No. 5 coal seam waters exhibit greater species diversity in the archaeal community compared to No. 11 counterparts. The higher abundance of archaea in the No. 5 coal seam promotes biogas generation due to the correlation between bicarbonate and dissolved inorganic carbon isotope. These research findings hold scientific significance in guiding the exploration and development of biogas within coal seams.
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spelling doaj-art-c324059090294573a9df89b7f73baf9c2025-08-20T02:11:12ZengMDPI AGEnergies1996-10732024-10-011720517010.3390/en17205170Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical ConstraintsYuan Bao0Xueru Chen1Zhidong Guo2Zhengyan Li3Yufei Zhuang4Min Gao5College of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaInstitute of Engineering and Technology, PetroChina Coalbed Methane Company Limited, Xi’an 710082, ChinaBaode Coal Mine, China Shenhua Shendong Coal Group, Xinzhou 036603, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaCollege of Geology and Environment, Xi’an University of Science and Technology, Xi’an 710054, ChinaThis study aims to explore microbial activity evidence, composition of archaeal communities, and environmental constraints in coalbed-produced waters from the Hancheng Block, a representative region for coalbed methane development on the eastern margin of Ordos Basin, China. The investigation involves analyzing microbial community composition using 16S rRNA sequencing analysis as well as examining hydrogeochemical parameters. The results indicate that <i>Euryarchaeota</i> and <i>Thaumarchaeota</i> are predominant phyla within archaeal communities present in coalbed-produced water from the Hancheng Block. Among these communities, <i>Methanobacterium</i> is identified as the most abundant genus, followed by <i>Methanothrix</i> and <i>Methanoregula</i>. Moreover, a positive correlation is observed between the abundance of <i>Methanobacterium</i> and the levels of total dissolved solids as well as Mn; conversely, there is a negative correlation with dissolved organic carbon, Zn concentrations, and pH. The abundance of Co and Ni primarily influence <i>Methanothrix</i> while pH and Zn play significant roles in controlling <i>Methanoregula</i>. Additionally, No. 5 coal seam waters exhibit greater species diversity in the archaeal community compared to No. 11 counterparts. The higher abundance of archaea in the No. 5 coal seam promotes biogas generation due to the correlation between bicarbonate and dissolved inorganic carbon isotope. These research findings hold scientific significance in guiding the exploration and development of biogas within coal seams.https://www.mdpi.com/1996-1073/17/20/5170archaeal communityhydrochemistry compositioncoalbed-produced waterdissolved inorganic carbon isotopestrace elements
spellingShingle Yuan Bao
Xueru Chen
Zhidong Guo
Zhengyan Li
Yufei Zhuang
Min Gao
Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
Energies
archaeal community
hydrochemistry composition
coalbed-produced water
dissolved inorganic carbon isotopes
trace elements
title Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
title_full Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
title_fullStr Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
title_full_unstemmed Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
title_short Evidence of Microbial Activity in Coal Seam Production Water and Hydrochemical Constraints
title_sort evidence of microbial activity in coal seam production water and hydrochemical constraints
topic archaeal community
hydrochemistry composition
coalbed-produced water
dissolved inorganic carbon isotopes
trace elements
url https://www.mdpi.com/1996-1073/17/20/5170
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AT zhengyanli evidenceofmicrobialactivityincoalseamproductionwaterandhydrochemicalconstraints
AT yufeizhuang evidenceofmicrobialactivityincoalseamproductionwaterandhydrochemicalconstraints
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