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Zhao Y, Liu Y, Cao S, Hao Q, Liu C, Li Y. Anaerobic oxidation of methane driven by different electron acceptors: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174287. [PMID: 38945238 DOI: 10.1016/j.scitotenv.2024.174287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/31/2024] [Accepted: 06/23/2024] [Indexed: 07/02/2024]
Abstract
Methane, the most significant reduced form of carbon on Earth, acts as a crucial fuel and greenhouse gas. Globally, microbial methane sinks encompass both aerobic oxidation of methane (AeOM), conducted by oxygen-utilizing methanotrophs, and anaerobic oxidation of methane (AOM), performed by anaerobic methanotrophs employing various alternative electron acceptors. These electron acceptors involved in AOM include sulfate, nitrate/nitrite, humic substances, and diverse metal oxides. The known anaerobic methanotrophic pathways comprise the internal aerobic oxidation pathway found in NC10 bacteria and the reverse methanogenesis pathway utilized by anaerobic methanotrophic archaea (ANME). Diverse anaerobic methanotrophs can perform AOM independently or in cooperation with symbiotic partners through several extracellular electron transfer (EET) pathways. AOM has been documented in various environments, including seafloor methane seepages, coastal wetlands, freshwater lakes, soils, and even extreme environments like hydrothermal vents. The environmental activities of AOM processes, driven by different electron acceptors, primarily depend on the energy yields, availability of electron acceptors, and environmental adaptability of methanotrophs. It has been suggested that different electron acceptors driving AOM may occur across a wider range of habitats than previously recognized. Additionally, it is proposed that methanotrophs have evolved flexible metabolic strategies to adapt to complex environmental conditions. This review primarily focuses on AOM, driven by different electron acceptors, discussing the associated reaction mechanisms and the habitats where these processes are active. Furthermore, it emphasizes the pivotal role of AOM in mitigating methane emissions.
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Affiliation(s)
- Yuewen Zhao
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
| | - Yaci Liu
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China.
| | - Shengwei Cao
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
| | - Qichen Hao
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
| | - Chunlei Liu
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
| | - Yasong Li
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China.
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2
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Zhang X, Wang R, Wang H, Xu Z, Feng C, Zhao F. CH 4 control and nitrogen removal from constructed wetlands by plant combination. CHEMOSPHERE 2024; 355:141898. [PMID: 38579951 DOI: 10.1016/j.chemosphere.2024.141898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/19/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Global warming trend is accelerating. This study proposes a green and economical methane (CH4) control strategy by plant combination in constructed wetlands (CWs). In this study, a single planting of Acorus calamus L. hybrid constructed wetland (HCW-A) and a mixed planting of Acorus calamus L. and Eichhornia crassipes (Mart.) Solms hybrid constructed wetland (HCW-EA) were constructed. The differences in nitrogen removal performance and CH4 emissions between HCW-A and HCW-EA were compared and analyzed. The findings indicated that HCW-EA demonstrated significant improvements over HCW-A, with NH4+-N and TN removal rates increasing by 21.61% and 16.38% respectively, and CH4 emissions decreased by 43.36%. The microbiological analysis results showed that plant combination promoted the enrichment of Proteobacteria, Alphaproteobacteria and Bacillus. More nitrifying bacteria carrying nxrA genes and denitrifying bacteria carrying nirK genes accelerated the nitrogen transformation process. In addition, the absolute abundance ratio of pmoA/mcrA increased, reducing the release of CH4.
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Affiliation(s)
- Xinwen Zhang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Rongzhen Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Hongxiu Wang
- Inspur General Software Co., Ltd, Jinan, 250101, China
| | - Zhenghe Xu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
| | - Chengye Feng
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Fangxing Zhao
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
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3
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Zhang M, Huang W, Zhang L, Feng Z, Zuo Y, Xie Z, Xing W. Nitrite-dependent anaerobic methane oxidation (N-DAMO) in global aquatic environments: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:171081. [PMID: 38387583 DOI: 10.1016/j.scitotenv.2024.171081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
The vast majority of processes in the carbon and nitrogen cycles are driven by microorganisms. The nitrite-dependent anaerobic oxidation of methane (N-DAMO) process links carbon and nitrogen cycles, offering a novel approach for the simultaneous reduction of methane emissions and nitrite pollution. However, there is currently no comprehensive summary of the current status of the N-DAMO process in natural aquatic environments. Therefore, our study aims to fill this knowledge gap by conducting a comprehensive review of the global research trends in N-DAMO processes in various aquatic environments (excluding artificial bioreactors). Our review mainly focused on molecular identification, global study sites, and their interactions with other elemental cycling processes. Furthermore, we performed a data integration analysis to unveil the effects of key environmental factors on the abundance of N-DAMO bacteria and the rate of N-DAMO process. By combining the findings from the literature review and data integration analysis, we proposed future research perspectives on N-DAMO processes in global aquatic environments. Our overarching goal is to advance the understanding of the N-DAMO process and its role in synergistically reducing carbon emissions and removing nitrogen. By doing so, we aim to make a significant contribution to the timely achievement of China's carbon peak and carbon neutrality targets.
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Affiliation(s)
- Miao Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garde, Chinese Academy of Sciences, Wuhan 430074, China
| | - Wenmin Huang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garde, Chinese Academy of Sciences, Wuhan 430074, China; Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, Wuhan 430074, China
| | - Lei Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garde, Chinese Academy of Sciences, Wuhan 430074, China
| | - Zixuan Feng
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garde, Chinese Academy of Sciences, Wuhan 430074, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yanxia Zuo
- Analysis and Testing Center, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zuoming Xie
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China.
| | - Wei Xing
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garde, Chinese Academy of Sciences, Wuhan 430074, China; Hubei Key Laboratory of Wetland Evolution and Ecological Restoration, Wuhan 430074, China.
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4
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Park SM, Rhee MS. Prevalence and phylogenetic traits of nitrite-producing bacteria in raw ingredients and processed baby foods: Potential sources of foodborne infant methemoglobinemia. Food Res Int 2024; 178:113966. [PMID: 38309914 DOI: 10.1016/j.foodres.2024.113966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 12/19/2023] [Accepted: 01/02/2024] [Indexed: 02/05/2024]
Abstract
Nitrite, which has been mainly regarded as a chemical hazard, can induce infant methemoglobinemia. As for nitrite as a product of microbial metabolism, the contribution of the oral or gut microbiome has mostly received attention, whereas the role of nitrite-producing bacteria (NPBs) in food has been less elucidated. In this study, mesophilic NPBs were isolated from food samples (n = 320) composed of raw ingredients for weaning foods (n = 160; beetroot, broccoli, carrot, lettuce, rice powder, spinach, sweet potato, and honey) and processed baby foods (n = 160; cereal snack, cheese, yogurt, powdered infant formula, sorghum syrup, vegetable fruit juice, and weaning food). The phylogenetic diversity of the NPB strains was analyzed via 16S rRNA sequencing. All 15 food items harbored NPBs, with a prevalence of 71.9 % and 34.4 % for the raw ingredients and processed foods, respectively. The NPBs isolated from the foods were identified as Actinomycetota (Actinomycetes), Bacteroidota (Flavobacteriia, Sphingobacteriia), Bacillota (Bacilli), or Pseudomonadota (Alpha-, Beta-, and Gammaproteobacteria). Among the raw and processed foods, beetroot (85.0 %) and powdered infant formula (70.0 %) showed had the highest NPB prevalence (P > 0.05). Bacillota predominated in both types of food. The contamination source of Pseudomonadota, which was another major phylum present in the raw ingredients, was presumed to be the soil and endophytes in the seeds, whereas that of Bacillota was the manufacturing equipment used with the raw ingredients. Common species for probiotics, such as Lacticaseibacillus, Leuconostoc, Enterococcus, and Bacillus, were isolated and identified as NPBs. To our knowledge, this is the first study to reveal the taxonomical diversity and omnipresence of NPBs in food for babies. The results of this study highlight the importance of food-mediated microbiological risks of infant methemoglobinemia which are yet underrecognized.
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Affiliation(s)
- Sun Min Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Min Suk Rhee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
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5
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Zhao Q, Lu Y. Anaerobic oxidation of methane in terrestrial wetlands: The rate, identity and metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:166049. [PMID: 37543312 DOI: 10.1016/j.scitotenv.2023.166049] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/19/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
The recent discovery of anaerobic oxidation of methane (AOM) in freshwater ecosystems has caused a great interest in "cryptic methane cycle" in terrestrial ecosystems. Anaerobic methanotrophs appears widespread in wetland ecosystems, yet, the scope and mechanism of AOM in natural wetlands remain poorly understood. In this paper, we review the recent progress regarding the potential of AOM, the diversity and distribution, and the metabolism of anaerobic methanotrophs in wetland ecosystems. The potential of AOM determined through laboratory incubation or in situ isotopic labeling ranges from 1.4 to 704.0 nmol CH4·g-1 dry soil·d-1. It appears that the availability of electron acceptors is critical in driving different AOM in wetland soils. The environmental temperature and salinity exert a significant influence on AOM activity. Reversal methanogenesis and extracellular electron transfer are likely involved in the AOM process. In addition to anaerobic methanotrophic archaea, the direct involvement of methanogens in AOM is also probable. This review presented an overview of the rate, identity, and metabolisms to unravel the biogeochemical puzzle of AOM in wetland soils.
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Affiliation(s)
- Qingzhou Zhao
- College of Urban and Environmental Science, Peking University, Beijing 100871, PR China
| | - Yahai Lu
- College of Urban and Environmental Science, Peking University, Beijing 100871, PR China.
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6
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Wang T, Zhumabieke M, Zhang N, Liu C, Zhong J, Liao Q, Zhang L. Variable promotion of algae and macrophyte organic matter on methanogenesis in anaerobic lake sediment. ENVIRONMENTAL RESEARCH 2023; 237:116922. [PMID: 37598844 DOI: 10.1016/j.envres.2023.116922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/29/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
Shallow lakes are an important natural source of atmospheric methane (CH4), and the input of autochthonous organic matter (OM) into their sediments encourages methanogenesis. Although algal- and macrophytic-originated OM in these lakes are expected to have different impacts on methanogenesis and methanogenic archaeal communities in lake sediments owing to their various properties, their specific influence and role in sediment remain unclear. In this study, a 148-day incubation was carried out by adding algal- and macrophytic-OM to the sediments of shallow eutrophic Lake Chaohu and Lake Taihu in China. CH4 was periodically monitored, while the methanogens were examined via qPCR and high-throughput sequencing at the end of incubation. Algal-OM stimulated CH4 production more than macrophytic-OM in both sediments, with the rates initially increasing and then decreasing before reaching a relative constant. Macrophytic-OM promoted CH4 production to a comparable extent in both lakes, while algal-OM promoted greater CH4 in Lake Chaohu than in Lake Taihu. However, algal-OM did not significantly increase mcrA gene copies, while macrophytic-OM did by 17.0-20.1-fold. Algal-OM potentially promoted the methylotrophic pathway in Lake Taihu but did not change the methanogenic structure in Lake Chaohu. Comparatively, macrophytic-OM promoted CH4 production mainly by acetoclastic methanogen proliferation in both lakes. More CH4 release with algal-OM compared to macrophytic-OM deserves further attention owing to the prevailing increasing algal blooms and the declining macrophyte population in lakes.
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Affiliation(s)
- Tong Wang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Maidina Zhumabieke
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Nan Zhang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China; School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, PR China
| | - Cheng Liu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Jicheng Zhong
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Qianjiahua Liao
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Lei Zhang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China.
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7
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Singh S, Soti A, Kulshreshtha NM, Kumar N, Brighu U, Gupta AB, Bezbaruah AN. Optimization of depth of filler media in horizontal flow constructed wetlands for maximizing removal rate coefficients of targeted pollutant(s). BIORESOURCE TECHNOLOGY 2023; 376:128898. [PMID: 36931442 DOI: 10.1016/j.biortech.2023.128898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
Varying the depth of HFCW media causes differences in the redox status within the system, and hence the community structure and diversity of bacteria, affecting removal rates of different pollutants. The key functional microorganisms of CWs that remove contaminants belong to the phyla Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes. Secondary data of 111 HFCWs (1232 datasets) were analyzed to deduce the relationship between volumetric removal rate coefficients (KBOD, KTN, KTKN, and KTP) and depth. Equations of depth were derived in terms of rate coefficients using machine learning approach (MLR and SVR) (R2 = 0.85, 0.87 respectively). These equations were then used to find the optimum depth for pollutant(s) removal using Grey wolf optimization (GWO). The computed optimum depths were 1.48, 1.71, 1.91, 2.09, and 2.14 m for the removal of BOD, TKN, TN, TP, and combined nutrients, respectively, which were validated through primary data. This study would be helpful for optimal design of HFCWs.
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Affiliation(s)
- Saurabh Singh
- Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India
| | - Abhishek Soti
- Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India
| | - Niha Mohan Kulshreshtha
- Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India
| | - Nikhil Kumar
- Department of Electrical Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India
| | - Urmila Brighu
- Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India
| | - Akhilendra Bhushan Gupta
- Department of Civil Engineering, Malaviya National Institute of Technology, JLN Marg, Jaipur 302017, India.
| | - Achintya N Bezbaruah
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA
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Hu S, Zhu H, Bañuelos G, Shutes B, Wang X, Hou S, Yan B. Factors Influencing Gaseous Emissions in Constructed Wetlands: A Meta-Analysis and Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3876. [PMID: 36900888 PMCID: PMC10001287 DOI: 10.3390/ijerph20053876] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/08/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Constructed wetlands (CWs) are an eco-technology for wastewater treatment and are applied worldwide. Due to the regular influx of pollutants, CWs can release considerable quantities of greenhouse gases (GHGs), ammonia (NH3), and other atmospheric pollutants, such as volatile organic compounds (VOCs) and hydrogen sulfide (H2S), etc., which will aggravate global warming, degrade air quality and even threaten human health. However, there is a lack of systematic understanding of factors affecting the emission of these gases in CWs. In this study, we applied meta-analysis to quantitatively review the main influencing factors of GHG emission from CWs; meanwhile, the emissions of NH3, VOCs, and H2S were qualitatively assessed. Meta-analysis indicates that horizontal subsurface flow (HSSF) CWs emit less CH4 and N2O than free water surface flow (FWS) CWs. The addition of biochar can mitigate N2O emission compared to gravel-based CWs but has the risk of increasing CH4 emission. Polyculture CWs stimulate CH4 emission but pose no influence on N2O emission compared to monoculture CWs. The influent wastewater characteristics (e.g., C/N ratio, salinity) and environmental conditions (e.g., temperature) can also impact GHG emission. The NH3 volatilization from CWs is positively related to the influent nitrogen concentration and pH value. High plant species richness tends to reduce NH3 volatilization and plant composition showed greater effects than species richness. Though VOCs and H2S emissions from CWs do not always occur, it should be a concern when using CWs to treat wastewater containing hydrocarbon and acid. This study provides solid references for simultaneously achieving pollutant removal and reducing gaseous emission from CWs, which avoids the transformation of water pollution into air contamination.
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Affiliation(s)
- Sile Hu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Zhu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Gary Bañuelos
- USDA, Agricultural Research Service, San Joaquin Valley Agricultural Science Center, 9611 South Riverbend Avenue, Parlier, CA 93648-9757, USA
| | - Brian Shutes
- Department of Natural Sciences, Middlesex University, Hendon, London NW4 4BT, UK
| | - Xinyi Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengnan Hou
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
| | - Baixing Yan
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
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9
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Yang WT, Shen LD, Bai YN. Role and regulation of anaerobic methane oxidation catalyzed by NC10 bacteria and ANME-2d archaea in various ecosystems. ENVIRONMENTAL RESEARCH 2023; 219:115174. [PMID: 36584837 DOI: 10.1016/j.envres.2022.115174] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/07/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
Freshwater wetlands, paddy fields, inland aquatic ecosystems and coastal wetlands are recognized as important sources of atmospheric methane (CH4). Currently, increasing evidence shows the potential importance of the anaerobic oxidation of methane (AOM) mediated by NC10 bacteria and a novel cluster of anaerobic methanotrophic archaea (ANME)-ANME-2d in mitigating CH4 emissions from different ecosystems. To better understand the role of NC10 bacteria and ANME-2d archaea in CH4 emission reduction, the current review systematically summarizes different AOM processes and the functional microorganisms involved in freshwater wetlands, paddy fields, inland aquatic ecosystems and coastal wetlands. NC10 bacteria are widely present in these ecosystems, and the nitrite-dependent AOM is identified as an important CH4 sink and induces nitrogen loss. Nitrite- and nitrate-dependent AOM co-occur in the environment, and they are mainly affected by soil/sediment inorganic nitrogen and organic carbon contents. Furthermore, salinity is another key factor regulating the two AOM processes in coastal wetlands. In addition, ANME-2d archaea have the great potential to couple AOM to the reduction of iron (III), manganese (IV), sulfate, and even humics in different ecosystems. However, the study on the environmental distribution of ANME-2d archaea and their role in CH4 mitigation in environments is insufficient. In this study, we propose several directions for future research on the different AOM processes and respective functional microorganisms.
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Affiliation(s)
- Wang-Ting Yang
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Li-Dong Shen
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Ya-Nan Bai
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
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10
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Chen F, Niu Y, An Z, Wu L, Zhou J, Qi L, Yin G, Dong H, Li X, Gao D, Liu M, Zheng Y, Hou L. Effects of periodic drying-wetting on microbial dynamics and activity of nitrite/nitrate-dependent anaerobic methane oxidizers in intertidal wetland sediments. WATER RESEARCH 2023; 229:119436. [PMID: 36459897 DOI: 10.1016/j.watres.2022.119436] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) plays an important role in methane (CH4) consumption in intertidal wetlands. However, little is known about the responses of n-DAMO in intertidal wetlands to periodic drying-wetting caused by tidal cycling. Here, comparative experiments (waterlogged, desiccated, reflooded) with the Yangtze estuarine intertidal sediments were performed to examine the effects of periodic tidal changes on n-DAMO microbial communities, abundances, and potential activities. Functional gene sequencing indicated the coexistence of n-DAMO bacteria and archaea in the tide-fluctuating environments and generally higher biodiversity under reflooded conditions than consecutive inundation or emersion. The n-DAMO microbial abundance and associated activity varied significantly during alternative exposure and inundation, with higher abundance and activity under the waterlogged than desiccated conditions. Reflooding of intertidal wetlands might intensify n-DAMO activities, indicating the resilience of n-DAMO microbial metabolisms to the wetting-drying events. Structural equation modeling and correlation analysis showed that n-DAMO activity was highly related to n-DAMO microbial abundance and substrate availability under inundation, whereas salt accumulation in sediment was the primary factor restraining n-DAMO activity under the desiccation. Overall, this study reveals tidal-induced shifts of n-DAMO activity and associated contribution to mitigating CH4, which may help accurately project CH4 emission from intertidal wetlands under different tidal scenarios.
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Affiliation(s)
- Feiyang Chen
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Yuhui Niu
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Zhirui An
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China
| | - Li Wu
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China
| | - Jie Zhou
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Lin Qi
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China
| | - Guoyu Yin
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; Key Laboratory of Spatial-temporal Big Data Analysis and Application of Natural Resources in Megacities, Ministry of Natural Resources, Shanghai 200241, China
| | - Hongpo Dong
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Xiaofei Li
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Dengzhou Gao
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China
| | - Min Liu
- School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; Key Laboratory of Spatial-temporal Big Data Analysis and Application of Natural Resources in Megacities, Ministry of Natural Resources, Shanghai 200241, China
| | - Yanling Zheng
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, Shanghai 200241, China; Key Laboratory of Spatial-temporal Big Data Analysis and Application of Natural Resources in Megacities, Ministry of Natural Resources, Shanghai 200241, China.
| | - Lijun Hou
- State Key Laboratory of Estuarine and Coastal Research, Yangtze Delta Estuarine Wetland Ecosystem Observation and Research Station, Ministry of Education & Shanghai, East China Normal University, Shanghai 200241, China.
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11
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Cheng H, Yang Y, Shen L, Liu Y, Zhan X, Hu Z, Huang H, Jin J, Ren B, He Y, Jin Y, Su Z. Spatial variations of activity and community structure of nitrite-dependent anaerobic methanotrophs in river sediment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158288. [PMID: 36030855 DOI: 10.1016/j.scitotenv.2022.158288] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Rivers are an important site for methane emissions and reactive nitrogen removal. The process of nitrite-dependent anaerobic methane oxidation (n-damo) links the global carbon cycle and the nitrogen cycle, but its role in methane mitigation and nitrogen removal in rivers is poorly known. In the present study, we investigated the activity, abundance, and community composition of n-damo bacteria in sediment of the upper, middle, and lower reaches of Wuxijiang River (Zhejiang Province, China). The 13CH4 stable isotope experiments showed that the methane oxidation activity of n-damo was 0.11-1.88 nmol CO2 g-1 (dry sediment) d-1, and the activity measured from the middle reaches was significantly higher than that from the remaining regions. It was estimated that 3.27 g CH4 m-2 year-1 and 8.72 g N m-2 year-1 could be consumed via n-damo. Quantitative PCR confirmed the presence of n-damo bacteria, and their 16S rRNA gene abundance varied between 5.45 × 105 and 5.86 × 106 copies g-1 dry sediment. Similarly, the abundance of n-damo bacteria was significantly higher in the middle reaches. High-throughput sequencing showed a high n-damo bacterial diversity, with totally 152 operational taxonomic units being detected at 97 % sequence similarity cut-off. In addition, the n-damo bacterial community composition also varied spatially. The inorganic nitrogen (NH4+, NO2-, NO3-) level was found to be the key environmental factor controlling the n-damo activity and bacterial community composition. Overall, our results showed the spatial variations and environmental regulation of the activity and community structure of n-damo bacteria in river sediment, which expanded our understanding of the quantitative importance of n-damo in both methane oxidation and reactive nitrogen removal in riverine systems.
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Affiliation(s)
- Haixiang Cheng
- College of Chemistry and Materials Engineering, Quzhou University, Quzhou 324000, China
| | - Yuling Yang
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Lidong Shen
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
| | - Yan Liu
- Wuxi River Drinking Water Source Protection and Management Center, Quzhou 324000, China
| | - Xugang Zhan
- Quzhou Bureau of Ecology and Environment, Quzhou 324000, China
| | - Zhengfeng Hu
- Eco-environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, China
| | - Hechen Huang
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Jinghao Jin
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Bingjie Ren
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yefan He
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yuhan Jin
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Zhenfa Su
- Jiangsu Key Laboratory of Agricultural Meteorology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
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12
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Yang WT, Wang WQ, Shen LD, Bai YN, Liu X, Tian MH, Wang C, Feng YF, Liu Y, Yang YL, Liu JQ, Geng CY. Potential role of nitrite-dependent anaerobic methane oxidation in methane consumption and nitrogen removal in Chinese paddy fields. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156534. [PMID: 35679939 DOI: 10.1016/j.scitotenv.2022.156534] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/20/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Nitrite-dependent anaerobic methane oxidation (n-damo), catalyzed by bacteria closely related to Candidatus Methylomirabilis oxyfera, links the global carbon and nitrogen cycles. Currently, the contribution of n-damo in controlling methane emissions and nitrogen removal, and the key regulatory factors of this process in Chinese paddy fields are poorly known. Here, soil samples from 20 paddy fields located in different climate zones across China were collected to examine the n-damo activity and bacterial communities. The n-damo activity and bacterial abundance varied from 1.05 to 5.97 nmol CH4 g-1 (dry soil) d-1 and 2.59 × 105 to 2.50 × 107 copies g-1 dry soil, respectively. Based on the n-damo activity, it was estimated that approximately 0.91 Tg CH4 and 2.17 Tg N could be consumed annually via n-damo in Chinese paddy soils. The spatial variations in n-damo activity and community structure of n-damo bacteria were significantly (p < 0.05) affected by the soil ammonium content, labile organic carbon content and pH. Furthermore, significant differences in n-damo activity, bacterial abundance and community composition were observed among different climate zones. The n-damo activity was found to be positively correlated with the mean annual air temperature. Taken together, our results demonstrated the potential importance of n-damo in both methane consumption and nitrogen removal in Chinese paddy soils, and this process was regulated by local soil and climatic factors.
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Affiliation(s)
- Wang-Ting Yang
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Wei-Qi Wang
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Li-Dong Shen
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
| | - Ya-Nan Bai
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Xin Liu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Mao-Hui Tian
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Chun Wang
- Key Laboratory of Humid Subtropical Eco-geographical Process, Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Yan-Fang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210044, China
| | - Yang Liu
- Information Center, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yu-Ling Yang
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Jia-Qi Liu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Cai-Yu Geng
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
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13
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Qin C, Yao D, Cheng C, Xie H, Hu Z, Zhang J. Influence of iron species on the simultaneous nitrate and sulfate removal in constructed wetlands under low/high COD concentrations. ENVIRONMENTAL RESEARCH 2022; 212:113453. [PMID: 35537498 DOI: 10.1016/j.envres.2022.113453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
Nitrate and sulfate are crucial factors of eutrophication and black and odorous water in the surface water and thus have raised increasing environmental concerns. Constructed wetlands (CWs) are the last ecological barrier before effluent enters the natural water body. To explore the simultaneous removal of nitrate and sulfate, the CW microcosms of CW-Con (with quartz sand), CW-ZVI (quartz sand and zero-valent iron), CW-Mag (quartz sand and magnetite), CW-ZVI + Mag (quartz sand, ZVI and magnetite) groups were set up under the low (100 mg/L)/high (300 mg/L) chemical oxygen demand (COD) concentration. Under the high COD condition, CW-ZVI group showed the best performance in nitrate (97.1%) and sulfate (96.9%) removal. Under the low COD concentration, the removal content of nitrate and sulfate in CW-ZVI group was better than CW-Mag group. The reason for this result was that zero-valent iron (ZVI) could be the electron donor for nitrate and sulfate reduction. Meanwhile, ZVI promoted chemical denitrification under high COD concentration according to PCA analysis. In addition, the produced sulfides inhibited the relative abundance of denitrifying bacteria, resulting in the lowest nitrate removal rate in CW-Mag group with sufficient electron donors. This study provided an alternative method to enhance simultaneous sulfate and nitrate removal in CWs.
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Affiliation(s)
- Congli Qin
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China
| | - Dongdong Yao
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China
| | - Cheng Cheng
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Huijun Xie
- Environment Research Institute, Shandong University, Qingdao, 266237, PR China.
| | - Zhen Hu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
| | - Jian Zhang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China; College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
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14
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Zhao Y, Jiang H, Wang X, Liu C, Yang Y. Quinolone antibiotics enhance denitrifying anaerobic methane oxidation in Wetland sediments: Counterintuitive results. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119300. [PMID: 35427678 DOI: 10.1016/j.envpol.2022.119300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 03/25/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Denitrifying anaerobic methane oxidation (DAMO) plays an important role in the element cycle of wetlands. In recent years, the content of antibiotics in wetlands has gradually increased due to human activities. However, the impact of antibiotics on the ecological function of DAMO remains unclear. Here we studied the influence of three high-content quinolone antibiotics (QNs) on DAMO in the sediments of the Baiyangdian Wetland. The results show that QNs can significantly promote the potential DAMO rates. Moreover, the enhancement of potential DAMO rates is positively correlated with the dosage of QNs. This promotion effect of QNs on nitrate-DAMO can be attributed to the hormesis phenomenon or their inhibition of substrate competitors. As antibacterial agents, QNs inhibit nitrite-DAMO conducted by bacteria, but greatly promote nitrate-DAMO conducted by archaea. These results suggest that the short-term effect of QNs on DAMO in wetlands is promotion rather than inhibition.
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Affiliation(s)
- Yuewen Zhao
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang, 050800, China
| | - Hongchen Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.
| | - Xiuyan Wang
- Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, China; Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang, 050800, China
| | - Changli Liu
- Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes, Xiamen, 361021, China; Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang, 050061, China
| | - Yuqi Yang
- School of Water Resources and Environment, China University of Geosciences, Beijing, 100083, China
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15
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Feng M, Liang J, Wang P, Wang Y, Li J. Use of sponge iron dosing in baffled subsurface-flow constructed wetlands for treatment of wastewater treatment plant effluents during autumn and winter. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 24:1405-1417. [PMID: 35570740 DOI: 10.1080/15226514.2022.2031866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sponge iron (SI) is widely used in water treatment. As effluents from wastewater treatment plant (WWTP) require advanced treatment methodology, three forms of constructed wetlands (CWs): wetlands with sponge iron (SI), copper sulfate modified sponge iron (Cu/SI), and sponge iron coupled with solid carbon sources (C/SI), have been investigated in this paper for the removal effects of organic matter and nutrients in WWTP effluents, and the corresponding mechanisms have been analyzed. The results showed the effect of baffled subsurface-flow constructed wetland (BSFCW) with SI dosing to purify the WWTP effluents after the stable operation. The water flow of this BSFCW is the repeated combination of upward flow and downward flow, which can provide a longer treatment pathway and microbial exposure time. The average removal rates of total inorganic nitrogen (TIN) were 27.80%, 30.17%, and 44.83%, and the average removal rates of chemical oxygen demand (COD) were 19.96%, 23.73%, and 18.38%. The average removal rates of total phosphorus (TP) were 85.94%, 82.14%, and 83.95%. Cu/SI improved the dissolution of iron, C/SI improved denitrification, and a winter indoor temperature retention measure was adopted to increase the effectiveness of wetland treatment during the winter months. After comprehensively analyzing X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and two-dimensional numerical simulation diagrams, a plausible conjecture that microbes use electrons from SI for autotrophic denitrification is presented. Moreover, the stress effect of wetlands dosed with SI on plants decreased stepwise along the course since C/SI used on wetlands had less impact on plant stress.
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Affiliation(s)
- Muyu Feng
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China
- Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou, China
| | - Jinming Liang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China
- Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou, China
| | - Peng Wang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China
- Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou, China
| | - Ya'e Wang
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China
- Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou, China
| | - Jie Li
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, China
- Key laboratory of Yellow River Water Environment in Gansu Province, Lanzhou, China
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16
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Wang J, Long Y, Yu G, Wang G, Zhou Z, Li P, Zhang Y, Yang K, Wang S. A Review on Microorganisms in Constructed Wetlands for Typical Pollutant Removal: Species, Function, and Diversity. Front Microbiol 2022; 13:845725. [PMID: 35450286 PMCID: PMC9016276 DOI: 10.3389/fmicb.2022.845725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/01/2022] [Indexed: 01/09/2023] Open
Abstract
Constructed wetlands (CWs) have been proven as a reliable alternative to traditional wastewater treatment technologies. Microorganisms in CWs, as an important component, play a key role in processes such as pollutant degradation and nutrient transformation. Therefore, an in-depth analysis of the community structure and diversity of microorganisms, especially for functional microorganisms, in CWs is important to understand its performance patterns and explore optimized strategies. With advances in molecular biotechnology, it is now possible to analyze and study microbial communities and species composition in complex environments. This review performed bibliometric analysis of microbial studies in CWs to evaluate research trends and identify the most studied pollutants. On this basis, the main functional microorganisms of CWs involved in the removal of these pollutants are summarized, and the effects of these pollutants on microbial diversity are investigated. The result showed that the main phylum involved in functional microorganisms in CWs include Proteobacteria, Bacteroidetes, Actinobacteria and Firmicutes. These functional microorganisms can remove pollutants from CWs by catalyzing chemical reactions, biodegradation, biosorption, and supporting plant growth, etc. Regarding microbial alpha diversity, heavy metals and high concentrations of nitrogen and phosphorus significantly reduce microbial richness and diversity, whereas antibiotics can cause large fluctuations in alpha diversity. Overall, this review can provide new ideas and directions for the research of microorganisms in CWs.
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Affiliation(s)
- Jianwu Wang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Yuannan Long
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China.,Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha, China
| | - Guoliang Wang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Zhenyu Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Peiyuan Li
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Yameng Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Kai Yang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Shitao Wang
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
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17
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Cui X, Zhang M, Ding Y, Sun S, He S, Yan P. Enhanced nitrogen removal via iron‑carbon micro-electrolysis in surface flow constructed wetlands: Selecting activated carbon or biochar? THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152800. [PMID: 34982986 DOI: 10.1016/j.scitotenv.2021.152800] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
The iron-assisted autotrophic denitrification was plagued by passivation when introduced in surface flow constructed wetlands (SFCWs). Iron‑carbon micro-electrolysis (Fe/C-M/E) could facilitate the transfer of electrons during the utilization of iron. In this study, iron scraps coupling with activated carbon and biochar were applied to explore the effects of carbon materials on autotrophic denitrification. The results showed that TN removal rate in the SFCW with iron scraps and activated carbon (SFCW-IAC) and the SFCW with iron scraps and biochar (SFCW-IBC) were improved by 31.61% ± 8.18% and 14.09% ± 7.15%, and N2O fluxes were reduced to 2.73 and 3.12 mg m-2 d-1, respectively. The greater iron mass loss rate (0.91%) was confirmed in SFCW-IAC. Microbial community analysis reported that autotrophic denitrification and iron related genera were increased. This study proved that activated carbon was more suitable than biochar to Fe/C-M/E for denitrification enhancement and N2O emission reduction.
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Affiliation(s)
- Xijun Cui
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, PR China
| | - Manping Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - YiJing Ding
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, PR China
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, PR China; School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Pan Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
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18
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Chi Z, Zhu Y, Yin Y. Insight into SO 4(-II)- dependent anaerobic methane oxidation in landfill: Dual-substrates dynamics model, microbial community, function and metabolic pathway. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 141:115-124. [PMID: 35114562 DOI: 10.1016/j.wasman.2022.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/18/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
In anaerobic landfill, SO42- could serve as electron receptor for methane oxidation. In theory, concentrations of both methane and SO42- should be related to methane oxidation rate. However, the dynamics process has yet to be discovered, and the understanding of metabolic pathways of the sulfate-dependent anaerobic methane oxidation (S-DAMO) process in landfill remains limited. In this study, S-DAMO dynamics was investigated by observing the CH4 oxidation rates under different CH4/ SO42-counter-gradients. The CH4-SO42- dual-substrate model based on MichaeliseMenten equation was got (maximum substrate degradation rate Vmax [22.9 ± 1.31] µmol/[kg·d], half-saturation constants [Formula: see text] , and [Formula: see text] ). High-throughput sequencing analysis indicated Methanobacterials, Methanosarcinales, and Soil Crenarchaeotic were the main functional microorganisms for S-DAMO in landfill. The metabolic pathway of S-DAMO was speculated as the reverse methanogenesis pathway through Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUST) analysis, while methanogenesis was the methyl nutrition way based on methanol. The enzymes related to the carbon and sulfur cycles and their relative abundances in the microcosms were analyzed to graph the methane metabolic pathway and the sulfur metabolic pathway. The findings provide important parameters for CH4 mitigation in landfills, and give a new insight for understanding S-DAMO metabolic pathway in landfill.
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Affiliation(s)
- Zifang Chi
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China.
| | - Yuhuan Zhu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Ying Yin
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
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19
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Song S, Wang X, Wang Y, Li T, Huang J. NO 3- is an important driver of nitrite-dependent anaerobic methane oxidation bacteria and CH 4 fluxes in the reservoir riparian zone. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:16138-16151. [PMID: 34647205 DOI: 10.1007/s11356-021-16914-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Abstract
Nitrite-dependent anaerobic methane oxidation (N-DAMO) is an important biological process that combines microbial nitrogen and carbon cycling and is mainly carried out by nitrite-dependent anaerobic methane-oxidizing bacteria. The discovery of this microbial process has changed the conventional view of methane oxidation and nitrogen loss. In this study, the abundance, diversity, and community structure of N-DAMO bacteria were investigated based on high-throughput sequencing and fluorescence quantitative PCR measurements. We examined environmental factors driving the variations of CH4 fluxes and N-DAMO bacterial using correlation analysis and redundancy analysis. We found low CH4 fluxes and abundant N-DAMO bacteria in the riparian zone. After decomposing the effects of single variables and exploring them, NO3- was the only significant factor that significantly correlated with the abundance and richness of the N-DAMO community and gas fluxes (p < 0.05). Under the influence of three different land use types, the increase in NO3- (grassland vs. woodland and sparse woods, + 132.81% and + 106.25%) caused structural changes in the composition of the N-DAMO bacterial community, increasing its abundance (- 9.58% and + 21.19%), thus promoting the oxidation of CH4 and reduced CH4 emissions (+ 4.78% and + 35.63%) from the riparian zone. Appropriate NO3- input helps maintain the existing low methane emission fluxes in the riparian zone of the reservoir.
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Affiliation(s)
- Shuang Song
- College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China
| | - Xiaoyan Wang
- College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China.
| | - Yubing Wang
- College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China
| | - Tingting Li
- College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China
| | - Jingyu Huang
- College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China
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20
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Niu Y, Zheng Y, Hou L, Gao D, Chen F, Pei C, Dong H, Liang X, Liu M. Microbial dynamics and activity of denitrifying anaerobic methane oxidizers in China's estuarine and coastal wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150425. [PMID: 34560448 DOI: 10.1016/j.scitotenv.2021.150425] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Estuarine and coastal wetlands, which act as large sources of methane (CH4) and undergo substantial loading of anthropogenic nitrogen (N), provide ideal conditions for denitrifying anaerobic methane oxidation (DAMO) to occur. Yet the microbial mechanisms governing DAMO and the main driving factors in estuarine and coastal ecosystems remain unclear. This study investigated the spatiotemporal distribution and associated activity of DAMO microorganisms along a wide swath of China's coastline (latitudinal range: 22-41°N) using molecular assays and isotope tracing techniques. We uncovered significant spatial and seasonal variation in DAMO bacterial community structure, whereas DAMO archaeal community structure exhibited no seasonal differences. The abundance of DAMO bacterial pmoA gene (2.2 × 105-1.0 × 107 copies g-1) was almost one order of magnitude higher than that of DAMO archaeal mcrA gene (8.7 × 104 -1.8 × 106 copies g-1). A significant positive correlation between pmoA and mcrA gene abundances (p < 0.01) was observed, indicating that DAMO bacteria and archaea may cooperate closely and thus complete nitrate elimination. Potential DAMO rates, in the range of 0.09-23.4 nmol 13CO2 g-1 day-1 for nitrite-DAMO and 0.03-43.7 nmol 13CO2 g-1 day-1 for nitrate-DAMO, tended to be greater in the relatively warmer low-latitudes. Potential DAMO rates were weakly positively correlated with gene abundances, suggesting that DAMO microbial activity could not be predicted directly by gene abundance alone. The heterogeneous variability of DAMO was shaped by interactions among key environmental characteristics (sediment texture, N availability, TOC, Fe3+, salinity of water, and temperature). On a broader continental scale, potential N removal rates of 0.1-11.2 g N m-2 yr-1 were estimated via nitrite-DAMO activity in China's coastal wetlands. Overall, our results highlight the widespread distribution of DAMO microbes and their potential role in eliminating excess N inputs and reducing CH4 emissions in estuarine and coastal ecosystems, which could help mitigate global warming.
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Affiliation(s)
- Yuhui Niu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanling Zheng
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
| | - Lijun Hou
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
| | - Dengzhou Gao
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Feiyang Chen
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chenya Pei
- School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Hongpo Dong
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xia Liang
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Min Liu
- School of Geographic Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China; Key Laboratory of Geographic Information Science (Ministry of Education), East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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21
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Tian MH, Shen LD, Liu X, Bai YN, Hu ZH, Jin JH, Feng YF, Liu Y, Yang WT, Yang YL, Liu JQ. Response of nitrite-dependent anaerobic methanotrophs to elevated atmospheric CO 2 concentration in paddy fields. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149785. [PMID: 34467934 DOI: 10.1016/j.scitotenv.2021.149785] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Nitrite-dependent anaerobic methane oxidation (n-damo) catalyzed by Candidatus Methylomirabilis oxyfera (M. oxyfera)-like bacteria is a new pathway for the regulation of methane emissions from paddy fields. Elevated atmospheric CO2 concentrations (e[CO2]) can indirectly affect the structure and function of microbial communities. However, the response of M. oxyfera-like bacteria to e[CO2] is currently unknown. Here, we investigated the effect of e[CO2] (ambient CO2 + 200 ppm) on community composition, abundance, and activity of M. oxyfera-like bacteria at different depths (0-5, 5-10, and 10-20 cm) in paddy fields across multiple rice growth stages (tillering, jointing, and flowering). High-throughput sequencing showed that e[CO2] had no significant effect on the community composition of M. oxyfera-like bacteria. However, quantitative PCR suggested that the 16S rRNA gene abundance of M. oxyfera-like bacteria increased significantly in soil under e[CO2], particularly at the tillering stage. Furthermore, 13CH4 tracer experiments showed potential n-damo activity of 0.31-8.91 nmol CO2 g-1 (dry soil) d-1. E[CO2] significantly stimulated n-damo activity, especially at the jointing and flowering stages. The n-damo activity and abundance of M. oxyfera-like bacteria increased by an average of 90.9% and 50.0%, respectively, under e[CO2]. Correlation analysis showed that the increase in soil dissolved organic carbon content caused by e[CO2] had significant effects on the activity and abundance of M. oxyfera-like bacteria. Overall, this study provides the first evidence for a positive response of M. oxyfera-like bacteria to e[CO2], which may help reduce methane emissions from paddy fields under future climate change conditions.
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Affiliation(s)
- Mao-Hui Tian
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Li-Dong Shen
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
| | - Xin Liu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Ya-Nan Bai
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Zheng-Hua Hu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China.
| | - Jing-Hao Jin
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yan-Fang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210044, China
| | - Yang Liu
- Institute of Agricultural Information, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Wang-Ting Yang
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Yu-Ling Yang
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Jia-Qi Liu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, China
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22
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Zhang K, Wu X, Chen J, Wang W, Luo H, Chen W, Ma D, An X, Wei Z. The role and related microbial processes of Mn-dependent anaerobic methane oxidation in reducing methane emissions from constructed wetland-microbial fuel cell. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 294:112935. [PMID: 34119986 DOI: 10.1016/j.jenvman.2021.112935] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/26/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Anaerobic oxidation of methane (AOM) plays an important role in global carbon cycle and greenhouse gas emission reduction. In this study, an effective green technology to reduce methane emissions was proposed by introducing Mn-dependent anaerobic oxidation of methane (Mn-AOM) and microbial fuel cell (MFC) technology into constructed wetland (CW). The results indicate that the combination of biological methods and bioelectrochemical methods can more effectively control the methane emission from CW than the reported methods. The role of dissimilated metal reduction in methane control in CW and the biochemical process associated with Mn-AOM were also investigated. The results demonstrated that using Mn ore as the matrix and operating MFC effectively reduced methane emissions from CW, and higher COD removal rate was obtained in CW-MFC (Mn) during the 200 days of operation. Methane emission from CW-MFC (Mn) (53.76 mg/m2/h) was 55.61% lower than that of CW (121.12 mg/m2/h). The highest COD removal rate (99.85%) in CW-MFC (Mn) was obtained. As the dissimilative metal-reducing microorganisms, Geobacter (5.10%) was found enriched in CW-MFC (Mn). The results also showed that the presence of Mn ore was beneficial to the biodiversity of CW-MFCs and the growth of electrochemically active bacteria (EAB) including Proteobacteria (35.32%), Actinobacteria (2.38%) and Acidobacteria (2.06%), while the growth of hydrogenotrophic methanogens Methanobacterium was effectively inhibited. This study proposed an effective way to reduce methane from CW. It also provided reference for low carbon technology of wastewater treatment.
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Affiliation(s)
- Ke Zhang
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China; School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China.
| | - Xiangling Wu
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Jia Chen
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Wei Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China
| | - Hongbing Luo
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Wei Chen
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Dandan Ma
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Xiaochan An
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
| | - Zhaolan Wei
- College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, PR China
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Zhang M, Wang ZJ, Huang JC, Sun S, Cui X, Zhou W, He S. Salinity-driven nitrogen removal and its quantitative molecular mechanisms in artificial tidal wetlands. WATER RESEARCH 2021; 202:117446. [PMID: 34314924 DOI: 10.1016/j.watres.2021.117446] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/30/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
The present study investigated the performance in nitrogen removal and associated nitrogen transformation processes in seven mesocosms fed with saline water (0‰ to 30‰) to simulate tidal flow constructed wetlands (TF CWs). The highly effective and steady removal of NH4+-N (84.74% averagely) was obtained at various salinities, while the rates varied from 6.34% to 89.19% and 22.54% to 87.48% for NO3--N and total nitrogen (TN), respectively. Overall, nitrogen removal efficiencies were greater at lower salinities. Molecular biological analyses verified the co-occurrence of dissimilatory nitrate reduction to ammonium (DNRA), denitrification, anaerobic ammonium oxidation (anammox) and nitrification in the mesocosms, reportedly contributing to nitrogen removal in TF CWs. The absolute copy numbers of nitrogen functional genes and total bacterial 16S rRNA were 2.54 × 103-7.35 × 107 and 3.21 × 107-7.82 × 109 copies g-1 dg (dry gravel), respectively, with the dominant phyla, i.e., Chloroflexi, Proteobacteria, Actinobacteriota, Cyanobacteria, and Firmicutes, accounting for over 80% of the sequences. The relative abundances of the genera related to nitrification and dissimilatory nitrate reduction processes, i.e., denitrification, anammox and DNRA, varied from 0.16% to 0.89% and from 3.66% to 11.59%, respectively, while quantitative relationships confirmed NH4+-N transformation rate was jointly controlled by amoA, hzsB, nxrA and nrfA, and NO3--N removal rate by nirS, nosZ, narG, qnorB and nxrA. These findings may shed light on quantitative molecular mechanisms for nitrogen removal in TF CWs for the saline water treatment, providing a sustainable solution to nitrogen pollution problem in the estuary ecosystem.
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Affiliation(s)
- Manping Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Zi-Jing Wang
- Department of Environmental Engineering, National Cheng Kung University, Tainan City 701, Taiwan
| | - Jung-Chen Huang
- Department of Environmental Engineering, National Cheng Kung University, Tainan City 701, Taiwan.
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xijun Cui
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, PR China
| | - Weili Zhou
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
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24
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Mellado M, Vera J. Microorganisms that participate in biochemical cycles in wetlands. Can J Microbiol 2021; 67:771-788. [PMID: 34233131 DOI: 10.1139/cjm-2020-0336] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Several biochemical cycles are performed in natural wetlands (NWs) and constructed wetlands (CWs). The knowledge of the microorganisms could be used to monitor the restoration of wetlands or the performance of the wastewater treatment. Regarding bacteria, Proteobacteria phylum is the most abundant in NWs and CWs, which possesses a role in N, P, and S cycles, and in the degradation of organic matter. Other phyla are present in lower abundance. Archaea participate in methanogenesis, methane oxidation, and the methanogenic N2 fixation. Sulfur and phosphorus cycles are also performed by other microorganisms, such as Chloroflexi or Nitrospirae phyla. In general, there is more information about the N cycle, especially nitrification and denitrification. Processes where archaea participate (e.g. methane oxidation, methanogenic N2 fixation) are still unclear their metabolic role and several of these microorganisms have not been isolated so far. The study can use 16S rDNA genes or functional genes. The use of functional genes gives information to monitor specific microbial populations and 16S rDNA is more suitable to perform the taxonomic classification. Also, there are several Candidatus microorganisms, which have not been isolated so far. However, it has been described their metabolic role in the biochemical cycles in wetlands.
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Affiliation(s)
- Macarena Mellado
- Universidad de Santiago de Chile, 28065, Santiago de Chile, Chile, 8320000;
| | - Jeannette Vera
- Universidad del Bio-Bio - Sede Chillán, 185153, Chillán, Chile;
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25
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Li Q, Peng C, Zhang J, Li Y, Song X. Nitrogen addition decreases methane uptake caused by methanotroph and methanogen imbalances in a Moso bamboo forest. Sci Rep 2021; 11:5578. [PMID: 33692387 PMCID: PMC7947007 DOI: 10.1038/s41598-021-84422-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 02/11/2021] [Indexed: 11/23/2022] Open
Abstract
Forest soils play an important role in controlling global warming by reducing atmospheric methane (CH4) concentrations. However, little attention has been paid to how nitrogen (N) deposition may alter microorganism communities that are related to the CH4 cycle or CH4 oxidation in subtropical forest soils. We investigated the effects of N addition (0, 30, 60, or 90 kg N ha−1 yr−1) on soil CH4 flux and methanotroph and methanogen abundance, diversity, and community structure in a Moso bamboo (Phyllostachys edulis) forest in subtropical China. N addition significantly increased methanogen abundance but reduced both methanotroph and methanogen diversity. Methanotroph and methanogen community structures under the N deposition treatments were significantly different from those of the control. In N deposition treatments, the relative abundance of Methanoculleus was significantly lower than that in the control. Soil pH was the key factor regulating the changes in methanotroph and methanogen diversity and community structure. The CH4 emission rate increased with N addition and was negatively correlated with both methanotroph and methanogen diversity but positively correlated with methanogen abundance. Overall, our results suggested that N deposition can suppress CH4 uptake by altering methanotroph and methanogen abundance, diversity, and community structure in subtropical Moso bamboo forest soils.
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Affiliation(s)
- Quan Li
- Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, 712100, China.,State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Changhui Peng
- Center for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, 712100, China. .,Department of Biology Sciences, Institute of Environment Sciences, University of Quebec at Montreal, Case Postale 8888, Succursale Centre-Ville, Montreal, H3C3P8, Canada.
| | - Junbo Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yongfu Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xinzhang Song
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.
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Dang CC, Xie GJ, Liu BF, Xing DF, Ding J, Ren NQ. Heavy metal reduction coupled to methane oxidation:Mechanisms, recent advances and future perspectives. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124076. [PMID: 33268204 DOI: 10.1016/j.jhazmat.2020.124076] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 08/08/2020] [Accepted: 09/21/2020] [Indexed: 06/12/2023]
Abstract
Methane emission has contributed greatly to the global warming and climate change, and the pollution of heavy metals is an important concern due to their toxicity and environmental persistence. Recently, multiple heavy metals have been demonstrated to be electron acceptors for methane oxidation, which offers a potential for simultaneous methane emission mitigation and heavy metal detoxification. This review provides a comprehensive discussion of heavy metals reduction coupled to methane oxidation, and identifies knowledge gaps and opportunities for future research. The functional microorganisms and possible mechanisms are detailed in groups under aerobic, hypoxic and anaerobic conditions. The potential application and major environmental significances for global methane mitigation, the elements cycle and heavy metals detoxification are also discussed. The future research opportunities are also discussed to provide insights for further research and efficient practical application.
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Affiliation(s)
- Cheng-Cheng Dang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Guo-Jun Xie
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - De-Feng Xing
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jie Ding
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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Zhang M, Huang JC, Sun S, Rehman MMU, He S, Zhou W. Nitrogen removal through collaborative microbial pathways in tidal flow constructed wetlands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 758:143594. [PMID: 33246723 DOI: 10.1016/j.scitotenv.2020.143594] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 06/12/2023]
Abstract
Constructed wetlands are efficient in removing nitrogen from water; however, little is known about nitrogen-cycling pathways for nitrogen loss from tidal flow constructed wetlands. This study conducted molecular and stable isotopic analyses to investigate potential dissimilatory nitrate reduction to ammonium (DNRA), denitrification, nitrification, anaerobic ammonium oxidation (anammox), and their contributions to nitrogen removal by two tidal wetland mesocosms, PA (planted with Phragmites australis) and NP (unplanted), designated to treat Yangtze River Estuary water. Our results show the mesocosms removed ~22.6% of TN from nitrate-dominated river water (1.19 mg·L-1), with better performance obtained in PA than that in NP, which was consistent with the molecular and stable isotopic data. The potential activities of DNRA, anammox, denitrification and nitrification varied between 0.6 and 1.6, 4.6-37.3, 36.4-305.7, and 463.7-945.9 nmol N2 g-1 dry soil d-1, respectively, with higher values obtained in PA than NP. Nitrification accounted for 94.3-99.4% of NH4+ oxidation, with the rest through anammox. Denitrification contributed to 77.9-90.3% of NOx- reduction, compared to 9.2-21.6% and 0.5-1.5% via anammox and DNRA, respectively; 78.4-90.9% of N2 was produced through denitrification, with the rest via anammox. Pearson correlation analyses suggest NH4+ was the major factor regulating nitrification, while NO3- played an important role in the competition between denitrification and DNRA, and NO2- was a key restrictive factor for anammox. Overall, this study reveals the importance of nitrification, denitrification, anammox and DNRA in nitrogen removal, providing new insight into the nitrogen-cycling mechanisms in natural/artificial tidal wetlands.
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Affiliation(s)
- Manping Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jung-Chen Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Muhammad Muneeb Ur Rehman
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Weili Zhou
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
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28
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Zhang M, Zhao D, Chen C, Yang J, Lu Q, Zhang N, Leng X, An S. The effect of re-startup strategies on the recovery of constructed wetlands after long-term resting operation. BIORESOURCE TECHNOLOGY 2020; 311:123583. [PMID: 32474375 DOI: 10.1016/j.biortech.2020.123583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to identify the proper re-startup strategies (RSSs) for constructed wetlands (CWs) after long-term resting operation in terms of the recovery of pollutant removal efficiency (RE) and N-cycle gene abundance. The results suggested that backwashing increased the gene abundance without shortening the recovery time of gene abundance. The RSS involving excavation and washing performed better in terms of chemical oxygen demand (COD) RE, especially at the beginning, and performed slightly better or similarly in terms of N-cycle gene abundance and the REs of ammonia nitrogen (NH4+-N) and total nitrogen (TN). The abundance of the Amox gene was 66.1-92.8, 76.3-161.8 and 1550-2492 times larger than that of the napA, narG and amoA genes, respectively, and the anammox process was the dominant N removal pathway. Therefore, excavation and washing is recommended as the RSS for CWs with a long-term rest period.
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Affiliation(s)
- Miao Zhang
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Dehua Zhao
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China.
| | - Chen Chen
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Jiqiang Yang
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Qianqian Lu
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Nannan Zhang
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Xin Leng
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
| | - Shuqing An
- Institute of Wetland Ecology, School of Life Science, Nanjing University, Nanjing 210093, China
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