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Plants boost pyrrhotite-driven nitrogen removal in constructed wetlands.
Shen, Cheng; Su, Liti; Zhao, Yaqian; Liu, Wenbo; Liu, Ranbin; Zhang, Fuhao; Shi, Yun; Wang, Jie; Tang, Qiuqi; Yang, Yan; Bon Man, Yu; Zhang, Jin.
Affiliation
  • Shen C; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China; Dooge Centre for Water Resources Research, School of Civil Engineering, University
  • Su L; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China.
  • Zhao Y; Dooge Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Belfield Dublin 4, Ireland; State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China.
  • Liu W; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China.
  • Liu R; Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Beijing Advanced Innovation Center of Future Urban Design, Beijing University of Civil Engineering & Architecture, Beijing 100044, China; Dooge Centre for Water Resources Research, School of Civil Engineering, University Coll
  • Zhang F; Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Beijing Advanced Innovation Center of Future Urban Design, Beijing University of Civil Engineering & Architecture, Beijing 100044, China; State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Te
  • Shi Y; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China.
  • Wang J; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China.
  • Tang Q; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China.
  • Yang Y; Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Beijing Advanced Innovation Center of Future Urban Design, Beijing University of Civil Engineering & Architecture, Beijing 100044, China.
  • Bon Man Y; Consortium on Health, Environment, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR, China.
  • Zhang J; Zhejiang Province Key Laboratory of Recycling and Ecological Treatment of Waste Biomass, School of Environment and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang 310023, China. Electronic address: jinzhang@zust.edu.cn.
Bioresour Technol ; 367: 128240, 2023 Jan.
Article in En | MEDLINE | ID: mdl-36332867
Pyrrhotite is a promising electron donor for autotrophic denitrification. Using pyrrhotite as the substrate in constructed wetlands (CWs) can enhance the nitrogen removal performance in carbon-limited wastewater treatment. However, the role of plants in pyrrhotite-integrated CW is under debate as the oxygen released from plant roots may destroy the anoxic condition for autotrophic denitrification. This study compared pyrrhotite-integrated CWs with and without plants and identified the effects of plants' presence in nitrogen removal, pyrrhotite oxidized dissolution, and microbial community. The results show that plants enhanced the TN removal significantly (from 41.6 ± 3.9 % to 97.1 ± 2.6 %). Plants can accelerate the PAD in CW through the strengthening of pyrrhotite dissolution. Enriched functional (Thiobacillus and Acidiferrobacter) and a more complex bacterial co-occurrence network has been found in CW with plants. This study identified the role of plants in PAD acceleration, providing an in-depth understanding of pyrrhotite in CW systems.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Wetlands / Nitrogen Language: En Journal: Bioresour Technol Journal subject: ENGENHARIA BIOMEDICA Year: 2023 Document type: Article Country of publication: United kingdom
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Wetlands / Nitrogen Language: En Journal: Bioresour Technol Journal subject: ENGENHARIA BIOMEDICA Year: 2023 Document type: Article Country of publication: United kingdom