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Li Y, Hou F, Sun L, Lan J, Han Z, Li T, Wang Y, Zhao Z. Ecological effect of microplastics on soil microbe-driven carbon circulation and greenhouse gas emission: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 364:121429. [PMID: 38870791 DOI: 10.1016/j.jenvman.2024.121429] [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: 01/17/2024] [Revised: 05/09/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024]
Abstract
Soil organic carbon (SOC) pool, the largest part of terrestrial ecosystem, controls global terrestrial carbon balance and consequently presented carbon cycle-climate feedback in climate projections. Microplastics, (MPs, <5 mm) as common pollutants in soil ecosystems, have an obvious impact on soil-borne carbon circulation by affecting soil microbial processes, which play a central role in regulating SOC conversion. In this review, we initially presented the sources, properties and ecological risks of MPs in soil ecosystem, and then the differentiated effects of MPs on the component of SOC, including dissolved organic carbon, soil microbial biomass carbon and easily oxidized organic carbon varying with the types and concentrations of MPs, the soil types, etc. As research turns into a broader perspective, greenhouse gas emissions dominated by the mineralization of SOC coming into view since it can be significantly affected by MPs and is closely associated with soil microbial respiration. The pathways of MPs impacting soil microbes-driven carbon conversion include changing microbial community structure and composition, the functional enzyme's activity and the abundance and expression of functional genes. However, numerous uncertainties still exist regarding the microbial mechanisms in the deeper biochemical process. More comprehensive studies are necessary to explore the affected footprint and provide guidance for finding the evaluation criterion of MPs affecting climate change.
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Affiliation(s)
- Yaru Li
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Fangwei Hou
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao, 266071, China
| | - Lulu Sun
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Jing Lan
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Zhanghua Han
- Shandong Provincial Key Laboratory of Optics and Photonic Devices, Center of Light Manipulation and Applications, School of Physics and Electronics, Shandong Normal University, Jinan, 250358, China
| | - Tongtong Li
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Yiming Wang
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Zongshan Zhao
- College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
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Aguilar-Rangel EJ, Savin-Gámez A, García-Maldonado JQ, Prado B, Vásquez-Murrieta MS, Siebe C, Alcántara-Hernández RJ. Increases in the soil ammonia oxidizing phylotypes and their rechange due to long-term irrigation with wastewater. PLoS One 2024; 19:e0299518. [PMID: 38603769 PMCID: PMC11008854 DOI: 10.1371/journal.pone.0299518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/13/2024] [Indexed: 04/13/2024] Open
Abstract
Wastewater irrigation is a common practice for agricultural systems in arid and semiarid zones, which can help to overcome water scarcity and contribute with nutrient inputs. Ammonia-oxidizing bacteria (AOB) and archaea (AOA) are key in the transformation of NH4+-N in soil and can be affected by variations in soil pH, EC, N and C content, or accumulation of pollutants, derived from wastewater irrigation. The objective of this study was to determine the changes in the ammonia oxidizing communities in agricultural soils irrigated with wastewater for different periods of time (25, 50, and 100 years), and in rainfed soils (never irrigated). The amoA gene encoding for the catalytic subunit of the ammonia monooxygenase was used as molecular reporter; it was quantified by qPCR and sequenced by high throughput sequencing, and changes in the community composition were associated with the soil physicochemical characteristics. Soils irrigated with wastewater showed up to five times more the abundance of ammonia oxidizers (based on 16S rRNA gene relative abundance and amoA gene copies) than those under rainfed agriculture. While the amoA-AOA: amoA-AOB ratio decreased from 9.8 in rainfed soils to 1.6 in soils irrigated for 100 years, indicating a favoring environment for AOB rather than AOA. Further, the community structure of both AOA and AOB changed during wastewater irrigation compared to rainfed soils, mainly due to the abundance variation of certain phylotypes. Finally, the significant correlation between soil pH and the ammonia oxidizing community structure was confirmed, mainly for AOB; being the main environmental driver of the ammonia oxidizer community. Also, a calculated toxicity index based on metals concentrations showed a correlation with AOB communities, while the content of carbon and nitrogen was more associated with AOA communities. The results indicate that wastewater irrigation influence ammonia oxidizers communities, manly by the changes in the physicochemical environment.
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Affiliation(s)
- Eduardo J. Aguilar-Rangel
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Unidad de Posgrado, Edificio D, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Alba Savin-Gámez
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Unidad de Posgrado, Edificio D, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - José Q. García-Maldonado
- Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Merida 97310, Yucatán, México
| | - Blanca Prado
- Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Del. Coyoacán, 04510, Ciudad de México, México
| | - María Soledad Vásquez-Murrieta
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Del. Miguel Hidalgo, 11340, Ciudad de México, México
| | - Christina Siebe
- Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Del. Coyoacán, 04510, Ciudad de México, México
| | - Rocío J. Alcántara-Hernández
- Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Av. Universidad 3000, Del. Coyoacán, 04510, Ciudad de México, México
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Yalin D, Craddock HA, Assouline S, Ben Mordechay E, Ben-Gal A, Bernstein N, Chaudhry RM, Chefetz B, Fatta-Kassinos D, Gawlik BM, Hamilton KA, Khalifa L, Kisekka I, Klapp I, Korach-Rechtman H, Kurtzman D, Levy GJ, Maffettone R, Malato S, Manaia CM, Manoli K, Moshe OF, Rimelman A, Rizzo L, Sedlak DL, Shnit-Orland M, Shtull-Trauring E, Tarchitzky J, Welch-White V, Williams C, McLain J, Cytryn E. Mitigating risks and maximizing sustainability of treated wastewater reuse for irrigation. WATER RESEARCH X 2023; 21:100203. [PMID: 38098886 PMCID: PMC10719582 DOI: 10.1016/j.wroa.2023.100203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 12/17/2023]
Abstract
Scarcity of freshwater for agriculture has led to increased utilization of treated wastewater (TWW), establishing it as a significant and reliable source of irrigation water. However, years of research indicate that if not managed adequately, TWW may deleteriously affect soil functioning and plant productivity, and pose a hazard to human and environmental health. This review leverages the experience of researchers, stakeholders, and policymakers from Israel, the United-States, and Europe to present a holistic, multidisciplinary perspective on maximizing the benefits from municipal TWW use for irrigation. We specifically draw on the extensive knowledge gained in Israel, a world leader in agricultural TWW implementation. The first two sections of the work set the foundation for understanding current challenges involved with the use of TWW, detailing known and emerging agronomic and environmental issues (such as salinity and phytotoxicity) and public health risks (such as contaminants of emerging concern and pathogens). The work then presents solutions to address these challenges, including technological and agronomic management-based solutions as well as source control policies. The concluding section presents suggestions for the path forward, emphasizing the importance of improving links between research and policy, and better outreach to the public and agricultural practitioners. We use this platform as a call for action, to form a global harmonized data system that will centralize scientific findings on agronomic, environmental and public health effects of TWW irrigation. Insights from such global collaboration will help to mitigate risks, and facilitate more sustainable use of TWW for food production in the future.
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Affiliation(s)
- David Yalin
- A Department of Earth and Planetary Sciences, The Weizmann Institute of Science, Rehovot, Israel
| | - Hillary A. Craddock
- Department of Health Policy and Management, School of Public Health, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Shmuel Assouline
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | - Evyatar Ben Mordechay
- The Robert H Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Alon Ben-Gal
- Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization (ARO) – The Volcani Institute, Gilat Reseach Center, Israel
| | - Nirit Bernstein
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | | | - Benny Chefetz
- The Robert H Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Despo Fatta-Kassinos
- Department of Civil and Environmental Engineering, NIREAS-International Water Research Center, University of Cyprus, Nicosia, Cyprus
| | - Bernd M. Gawlik
- Ocean and Water Unit, Joint Research Centre, European Commission, Ispra, Italy
| | - Kerry A. Hamilton
- The School of Sustainable Engineering and the Built Environment and The Biodesign Institute Center for Environmental Health Engineering, Arizona State University, Tempe, AZ, USA
| | - Leron Khalifa
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | - Isaya Kisekka
- Department of Land Air and Water Resources, University of California, Davis, California, USA
| | - Iftach Klapp
- Institute of Agricultural engineering, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | | | - Daniel Kurtzman
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | - Guy J. Levy
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | - Roberta Maffettone
- Ocean and Water Unit, Joint Research Centre, European Commission, Ispra, Italy
| | - Sixto Malato
- CIEMAT-Plataforma Solar de Almería, Ctra. Sen´es km 4, 04200 Tabernas, Almería, Spain
| | - Célia M. Manaia
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Kyriakos Manoli
- NIREAS-International Water Research Center, University of Cyprus, Nicosia, Cyprus
| | - Orah F. Moshe
- Department of Soil Conservation, Soil Erosion Research Center, Ministry of Agriculture, Rishon LeZion, Israel
| | - Andrew Rimelman
- PG Environmental. 1113 Washington Avenue, Suite 200. Golden, CO 80401, USA
| | - Luigi Rizzo
- Water Science and Technology (WaSTe) Group, Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - David L. Sedlak
- Department of Civil & Environmental Engineering, University of California, Berkeley, Berkeley, CA 94720 USA
| | - Maya Shnit-Orland
- Extension Service, Ministry of Agriculture and Rural Development, Israel
| | - Eliav Shtull-Trauring
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
| | - Jorge Tarchitzky
- The Robert H Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | | | - Clinton Williams
- US Arid-Land Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Maricopa, AZ, USA
| | - Jean McLain
- Department of Environmental Science, University of Arizona, Tucson, Arizona, USA
| | - Eddie Cytryn
- Institute of Soil, Water and Environmental Sciences, Agriculture Research Organization (ARO) – The Volcani Institute, Rishon LeZion, Israel
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Liu X, Zhang L, Yang F, Zhou W. Determining reclaimed water quality thresholds and farming practices to improve food crop yield: A meta-analysis combined with random forest model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 862:160774. [PMID: 36513233 DOI: 10.1016/j.scitotenv.2022.160774] [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: 10/28/2022] [Revised: 11/29/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Irrigated agricultural systems with reclaimed water (RW) play a crucial role in alleviating global water scarcity and increased food demand. However, appropriate reclaimed water quality thresholds and farming practices to improve food crop yield is virtually unclear. Therefore, for the first time, this study made a large compilation of previous studies using meta-analysis combined with a random forest (RF) model and analyzed the impact of RW versus freshwater (FW) on the yield of food crops (cereals, vegetables, and fruits). It was found that magnesium ion (Mg2+), calcium ion (Ca2+), electrical conductivity (EC), total nitrogen (TN), and potential of hydrogen (pH) were the most important factors for RW quality indicators. Based on the results, water managers should establish more conservative RW quality thresholds to promote food crop production, especially for salts and pollutants in RW. Compared to international water quality standards, it could be slightly relaxed the restrictions of TN in RW. The optimal farming practices obtained that irrigation amount of the mixed RW and FW (RW + FW) was from 1000 m3 ha-1 to 5000 m3 ha-1, and the cultivation period was no more than three years. Flood irrigation (FI) and drip irrigation (DI) for cereals were also recommended. Finally, a comparison of the determined results from this method with other scenarios published, finding a good agreement.
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Affiliation(s)
- Xufei Liu
- College of Water Resources and Architecture Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Lin Zhang
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| | - Fuhui Yang
- College of Water Resources and Architecture Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Wei Zhou
- College of Water Resources and Architecture Engineering, Northwest A&F University, Yangling, Shaanxi 712100, PR China
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Zhou S, Li Z, Peng S, Jiang J, Han X, Chen X, Jin X, Zhang D, Lu P. River water influenced by shale gas wastewater discharge for paddy irrigation has limited effects on soil properties and microbial communities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 251:114552. [PMID: 36652741 DOI: 10.1016/j.ecoenv.2023.114552] [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: 10/26/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
The processes of hydraulic fracturing to extract shale gas generate a large amount of wastewater, and the potential impacts of wastewater discharge after treatment are concerning. In this field study, we investigated the effects of the irrigation of paddy fields for 2 consecutive years by river water that has been influenced by shale gas wastewater discharge on soil physicochemical properties, microbial community structure and function, and rice grain quality. The results showed that conductivity, chloride and sulfate ions in paddy soils downstream of the outfall showed an accumulative trend after two years of irrigation, but these changes occurred on a small scale (<500 m). Two-year irrigation did not cause the accumulation of trace metals (barium, cadmium, chromium, copper, lead, strontium, zinc, nickel, and uranium) in soil and rice grains. Among all soil parameters, the accumulation of chloride ions was the most pronounced, with concentrations in the paddy soil at the discharge site 13.3 times higher than at the upstream control site. The use of influenced river water for paddy irrigation positively increased the soil microbial diversity, but these changes occurred after two years of irrigation and did not occur after one year of irrigation. Overall, the use of river water affected by shale gas wastewater discharge for agricultural irrigation has limited effects on agroecosystems over a short period. Nevertheless, the possible negative effects of contaminant accumulation in soil and rice caused by longer-term irrigation should be seriously considered.
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Affiliation(s)
- Shangbo Zhou
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Zhiqiang Li
- Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Shuchan Peng
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang 550001, China.
| | - Jiawei Jiang
- Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xu Han
- Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xiangyu Chen
- Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xicheng Jin
- Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Daijun Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Peili Lu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Department of Environmental Science, School of Environment and Ecology, Chongqing University, Chongqing 400045, China.
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6
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Changes of Microbial Diversity in Rhizosphere of Different Cadmium-Gradients Soil under Irrigation with Reclaimed Water. SUSTAINABILITY 2022. [DOI: 10.3390/su14148891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Water scarcity and the uneven distribution of water resources in China have resulted in water shortages for agricultural irrigation in arid and semi-arid areas. Reclaimed water used for agricultural irrigation has become an effective solution in the context of the global water shortage. In order to improve soil productivity and solve the shortage of water resources, we carried out reclaimed water irrigation experiments on polluted soil. Compared with full irrigation treatments, the EC value of reclaimed water under deficit irrigation treatments decreased by 2.89–42.90%, and the content of organic matter increased by 6.31–12.10%. The proportion of Acidobacteria community in soils with different cadmium concentration gradients irrigated with reclaimed water ranged from 13.6% to 30.5%, its relative abundance decreased with the increase of soil cadmium concentration. In particular, the relative abundance of Pseudomonas pathogens in deficit irrigation treatments was lower than that of the full irrigation treatments. RDA analysis showed that the environmental factors that played a leading role in the change of microbial community structure were organic matter and pH. Furthermore, the metabolic function potential of the rhizosphere soil bacterial community in deficit irrigation treatments was higher than that of full irrigation treatments with reclaimed water. This study proved that reclaimed water irrigation for cadmium contaminated soil did not aggravate the pollution level and promoted the soil ecological environment with better microbial community diversity.
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Haroun B, Bahreini G, Zaman M, Jang E, Okoye F, Elbeshbishy E, Santoro D, Walton J, Al-Omari A, Muller C, Bell K, Nakhla G. Vacuum-enhanced anaerobic fermentation: Achieving process intensification, thickening and improved hydrolysis and VFA yields in a single treatment step. WATER RESEARCH 2022; 220:118719. [PMID: 35704979 DOI: 10.1016/j.watres.2022.118719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/08/2022] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
This study assessed the feasibility of a novel vacuum-enhanced anaerobic digestion technology, referred to as IntensiCarbTM (IC), under mild vacuum pressure (110 mbar), compared to a control (conventional fermenter), and evaluated the impact of the vacuum on the activities of various microbial groups. Both fermenters (test and control) were operated with mixed (50% v/v) municipal sludge at solids concentrations of 2-2.5%, pH of 7.8-8.1, 40-45 °C, a theoretical solids retention time (SRT) of 3 days with different hydraulic retention times (HRT). The intensification factor (IF) of the IC, defined as SRT/HRT, was controlled at 1.3 and 2.0. Simultaneous thickening and fermentation intensification were achieved. Compared with the control, the IC, despite the shorter HRTs, achieved 29.5 to 90.2% increase in the VFA yield (79 to 116 mg ΔVFA/ g VSS vs 61 mg ΔVFA/ g VSS), and 16.2% to 56.4% increase (280 to 377 mg ΔsCOD/ g VSS vs 241 mg ΔsCOD/ g VSS), in the hydrolysis yield. Fermentate from the IC exhibited comparable specific denitrification rates to acetate. Further, the solids-free condensate contained low nutrient concentrations, and thus was far superior to a typical centrates from dewatering as a carbon source. No adverse effects of vacuum on the activity of fermentative bacteria and methanogens were observed. This study demonstrated that the IC can be deployed as an intensification technology for both fermentation and anaerobic digestion of biosolids with the additional significant advantage, i.e. elimination of sidestream ammonia treatment requirements.
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Affiliation(s)
- Basem Haroun
- Chemical and Biochemical Engineering, University of Western Ontario, Canada; Water Pollution Research Department, National Research Center, 33 El Bohoth St., P.O.12622, Dokki, Giza, Egypt
| | | | - Masuduz Zaman
- Chemical and Biochemical Engineering, University of Western Ontario, Canada
| | | | - Frances Okoye
- Civil Engineering Department, Ryerson University, Canada
| | | | | | | | | | | | | | - George Nakhla
- Chemical and Biochemical Engineering, University of Western Ontario, Canada; Civil and Environmental Engineering, University of Western Ontario, Canada.
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Atamaleki A, Yazdanbakhsh A, Gholizadeh A, Naimi N, Karimi P, Thai VN, Fakhri Y. Concentration of potentially harmful elements (PHEs) in eggplant vegetable ( Solanum melongena) irrigated with wastewater: a systematic review and meta-analysis and probabilistic health risk assessment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:1419-1431. [PMID: 33588645 DOI: 10.1080/09603123.2021.1887461] [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: 11/08/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
The main objectives of this study were PHEs concentration meta-analysis (Fe, Zn, Cr, Ni, Cu, Pb, and Cd) in eggplant irrigated by wastewater and the following estimation of non-carcinogenic (n-CR) risk for the consumers based on countries. According to the results, the rank order of PHEs concentration in eggplant was Fe (88.3 mg/kg -dry weight) > Zn (10.1 mg/kg -dry weight) > Pb (3.0 mg/kg -dry weight) > Ni (2.7 mg/kg -dry weight) > Cu (1.1 mg/kg -dry weight) > Cd (0.9 mg/kg -dry weight) > Cr (0.05 mg/kg -dry weight). Moreover, n-CR risk showed that all investigated countries (China, India, Pakistan, Turkey, and Jordan) except for United Arab Emirates (UAE) had a considerable n-CR in both age groups (adults and children).
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Affiliation(s)
- Ali Atamaleki
- Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Yazdanbakhsh
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolmajid Gholizadeh
- Department of Environmental Health Engineering, School of Public Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Nayera Naimi
- Department of Environmental Health Engineering, School of Public Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
- PhD Student in Environmental Health Engineering, School Of Health, Student Research Committee, Mashhad University Of Medical Sciences, Mashhad, Iran
| | - Pouria Karimi
- Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Van Nam Thai
- Ho Chi Minh City University of Technology (HUTECH) 475A, Ho Chi Minh City, Dien Bien Phu, Ward 25, Binh Thanh District, Vietnam
| | - Yadolah Fakhri
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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9
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Indigenous microbial populations of abandoned mining sites and their role in natural attenuation. Arch Microbiol 2022; 204:251. [PMID: 35411412 DOI: 10.1007/s00203-022-02861-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 03/17/2022] [Accepted: 03/20/2022] [Indexed: 11/02/2022]
Abstract
Environmental contamination by toxic effluents discharged by anthropogenic activities including the mining industries has increased extensively in the recent past. Microbial communities and their biofilms inhabiting these extreme habitats have developed different adaptive strategies in metabolizing and transforming the persistent pollutants. They also play a crucial role in natural attenuation of these abandoned mining sites and act as a major driver of many biogeochemical processes, which helps in ecological rehabilitation and is a viable approach for restoration of wide stretches of land. In this review, the types of mine wastes including the overburden and mine drainage and the types of microbial communities thriving in such environments were probed in detail. The types of biofilms formed along with their possible role in metal bioremediation were also reviewed. This review also provides an overview of the shift in microbial communities in natural reclamation process and also provides an insight into the restoration of the enzyme activities of the soils which may help in further revegetation of abundant mining areas in a sustainable manner. Moreover, the role of indigenous microbiota in bioremediation of heavy metals and their plant growth-promoting activity weres discussed to assess their role in phytoremedial processes.
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10
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Lyu S, Wu L, Wen X, Wang J, Chen W. Effects of reclaimed wastewater irrigation on soil-crop systems in China: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152531. [PMID: 34953828 DOI: 10.1016/j.scitotenv.2021.152531] [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: 07/31/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Reclaimed wastewater (RW) use represents a substantial opportunity to alleviate the growing scarcity of water for irrigation of agricultural crops in China. However, insufficient understanding of the effects and fates of possible contaminants in RW promotes concerns over crop safety and prevents the extensive incorporation of RW in agriculture. We reviewed the characteristics of contaminants in RW, the fate of contaminants in soil-crop systems, and the effects of RW irrigation on soil quality and crop growth in China. We found that concentrations of heavy metals in RW were higher than the permissible limits in some areas. The total concentrations and main categories of emerging contaminants and pathogens in RW varied markedly among municipal wastewater treatment plants, and the greatest risks of contamination were posed by ofloxacin, sulfamethoxazole, and erythromycin, the most frequently observed compounds with risk quotients >1. The negative effects of salts and nutrients in RW on soil quality and crop growth were minor and manageable. The accumulation of heavy metals and emerging contaminants in soils irrigated with RW did not pose an immediate risk to soils and crops. Changes in soil microbial populations, diversity, and activity caused by RW irrigation increased crop yields and protected crops against contaminants. However, attention is necessary to the risks of bioaccumulation in soils and crops of heavy metals, emerging contaminants, intermediate metabolites, and pathogens, and their effects on human health with long-term RW irrigation. We recommend irrigation practices, crop screening, soil treatments, prioritizing the risks of contaminants, and comprehensive management to increase safety in RW used for agricultural irrigation.
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Affiliation(s)
- Sidan Lyu
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Laosheng Wu
- Department of Environmental Sciences, University of California, Riverside, California 92521, USA
| | - Xuefa Wen
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jing Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Weiping Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Assessing the Effect of Irrigation with Reclaimed Water Using Different Irrigation Techniques on Tomatoes Quality Parameters. SUSTAINABILITY 2022. [DOI: 10.3390/su14052856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
As the most important resource for life, water has been a central issue in the international agenda for several decades. Yet, the world’s clean freshwater supply is steadily decreasing due to climate change and extensive agricultural water demand for irrigated lands. Therefore, in addition to rational water use, we should use non-traditional water resources like Reclaimed Wastewater (RW). The present experiment was carried out in China over three years (2017, 2018, and 2019) to study the effects of two types of water qualities (reclaimed wastewater (RW) and clean water (CW)), two types of irrigation methods (Full irrigation (FI) and alternate partial root-zone irrigation (APRI)), and two types of irrigation techniques (Furrow irrigation (FUI) and subsurface drip irrigation (SDI)) on the main tomato fruit quality parameters. The APRI treatments obtained 70% of the FI irrigation water volume. The irrigation treatments of this study were: (1) SDI with APRI; (2) SDI with FI; (3) FUI with APRI; and (4) FUI with FI. These treatments were under RW and CW. Thus, the experiment consisted of eight treatments. The tomato fruit quality parameters studied were vitamin C (VC), total acidity (TA), protein content (PC), and total soluble sugar content (TSS). The results reveal that many measurements under reclaimed water (RW) had the highest values compared with clean water (CW), except in protein content (PC). The vast majority of values measured for PC under CW were slightly greater than the values under RW. Moreover, the results reveal that tomato quality in many measurements under APRI treatments increased compared with FUI. The statistical analysis generally shows that the fruit quality parameters were not significantly (p > 0.05) affected by the interaction between the irrigation treatments. In conclusion, the treatment SDI-APRI under RW can be an efficient irrigation method to reduce the consumption of clean water. Additionally, SDI-APRI offers a safe option because the physical contact between the wastewater, crops, and the farmers is minimized compare with the FUI treatment.
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12
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Niu L, Xie X, Li Y, Hu Q, Wang C, Zhang W, Zhang H, Wang L. Effects of nitrogen on the longitudinal and vertical patterns of the composition and potential function of bacterial and archaeal communities in the tidal mudflats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151210. [PMID: 34715211 DOI: 10.1016/j.scitotenv.2021.151210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/24/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Increasing attention has been focused on the diminishing health of coastal ecosystems. Understanding the effects of eutrophication on tidal flat ecosystems is beneficial for the restoration and management of coastal ecosystems. However, previous studies did not consider the effects of nitrogen on the structure and function of bacterial and archaeal communities in longitudinal and vertical profiles. Here, the diversity, composition, assembly mechanism, and potential metabolic function of the bacterial and archaeal communities were studied in two longitudinal tidal sections at different eutrophic levels. Nitrogen and salinity were the critical factors that influenced the bacterial and archaeal community composition using canonical correspondence and multivariate regression tree analyses. For the bacterial community, the higher nitrogen loading in tidal mudflats resulted in the convergence of diversity and structure in the longitudinal profile of bacteria, but divergence was detected in the vertical profile. For archaea, the diversity tended to be convergent in longitudinal and vertical profiles in the higher nitrogen area, but the change of structure was similar to that of bacteria. Besides the homogeneous processes influenced by salinity, the assembly process of the bacterial community was mainly influenced by heterogeneous selection (34.8%) and that of archaea by dispersal limitation (19.5%). However, the bacterial and archaeal communities in the higher nitrogen section presented more of an influence of heterogeneous selection (respectively, 39 and 5.6%) than that of the lower nitrogen section (respectively, 10 and 0.2%). Structural equation modeling indicated that nitrogen may have inhibited the effects of the bacterial community on nitrogen turnover in nitrogen-rich anoxic sediment environments, but may have strengthened the effect of the archaeal community on carbon metabolism compared to bacteria. This work deepens our understanding of the responses of bacterial and archaeal community structure and potential function to nitrogen pollution in tidal mudflats.
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Affiliation(s)
- Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Xudong Xie
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Qing Hu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Chao Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, PR China.
| | - Wenlong Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Huanjun Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Longfei Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Guedes P, Martins C, Couto N, Silva J, Mateus EP, Ribeiro AB, Pereira CS. Irrigation of soil with reclaimed wastewater acts as a buffer of microbial taxonomic and functional biodiversity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 802:149671. [PMID: 34454147 DOI: 10.1016/j.scitotenv.2021.149671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/29/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
The usage of reclaimed wastewater (RWW) for irrigation of agricultural soils is increasingly being acknowledged for reducing water consumption by promoting reuse of treated wastewater, and for the delivery of extant nutrients in the soil. The downside is that RWW may be a vector for contamination of soils with contaminants of emerging concern (CECs), if left uncontrolled. Its usage is anticipated to alter the soil properties, consequently also the soil microbial community. In the present study, soil microcosms were set to monitor how short periods (up to fourteen days) of RWW irrigation influence the soil ecosystem, namely its physicochemical properties, functioning, and colonising microbiota (differentiating fungi from bacteria). Two scenarios were studied: clean soil and soil contaminated (spiked) with 9 CECs, at conditions that limit any abiotic decay processes, monitoring along time fluctuations in the taxonomic and functional microbiota diversity. As shortly as fourteen days, the irrigation of either soil with RWW did not significantly (p > 0.05) alter its physicochemical properties and scarcely impacted the bioremediation processes of the CECs that showed decay levels ranging from 24% to 100%. Bacillus spp. dominance was enhanced along time in all the soil microcosms (reaching over 70% of the total abundance on the 7th day) but the RWW help to preserve, to some extent, high bacterial diversity. Besides, irrigation with RWW acted as a buffer of the soil mycobiota, limiting alterations in its composition caused either along time (to a minor degree) or due to contamination with CECs (to a great degree). This includes limiting the rise of Rhizopus sp. relative abundance. Collectively, our data support the utility of short-term periods of RWW irrigation for preserving the soil microbial diversity and functioning, especially when fungi are considered.
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Affiliation(s)
- Paula Guedes
- CENSE - Center for Environmental and Sustainability Research, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal; Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
| | - Celso Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Nazaré Couto
- CENSE - Center for Environmental and Sustainability Research, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Joana Silva
- CENSE - Center for Environmental and Sustainability Research, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Eduardo P Mateus
- CENSE - Center for Environmental and Sustainability Research, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Alexandra B Ribeiro
- CENSE - Center for Environmental and Sustainability Research, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Cristina Silva Pereira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
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14
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Oubane M, Khadra A, Ezzariai A, Kouisni L, Hafidi M. Heavy metal accumulation and genotoxic effect of long-term wastewater irrigated peri-urban agricultural soils in semiarid climate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 794:148611. [PMID: 34225150 DOI: 10.1016/j.scitotenv.2021.148611] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Water scarcity is becoming an alarming issue in the Mediterranean countries. Therefore, using the treated wastewater in the irrigation is considered as a valuable option. However, uncontrolled and long-term irrigation by wastewater leads to human health and environmental damages, mainly related to some specific pollutants. The assessment of the availability and toxicity of the heavy metals after long term irrigation, under semi-arid climate, is not yet well documented. In this study, physicochemical properties, genotoxicity (Vicia faba micronucleus test), total and available (CaCl2-extractable) concentrations of Cr, Pb, Cu, Zn, Co and Cd in eight soils of peri-urban farms irrigated with wastewater were examined to evaluate their accumulation. The results indicated that long-term irrigation with wastewater induced significant increase of electrical conductivity, organic matter, calcium carbonate equivalent and nutrient availability. Total and available concentration of heavy metals were significantly higher (P < 0.05) in irrigated soils by wastewater. The total concentrations of Zn, Pb, Cu, Cr, Cd and Co in irrigated soils by wastewater at 0-40 cm depth were 85.69, 43.94, 34.86, 14.62, 9.94 and 7.17 mg kg-1, respectively. Furthermore, the increase of the available metal fraction in irrigated soils by wastewater at 0-40 cm depth followed the following order: Co (1270.1%) > Cd (914.5%) > Cu (881.5%) > Cr (471.2%) > Pb (230.8%) > Zn (223.8%). The micronucleus assay indicated significant increase of micronucleus frequencies (41.25‰, 35.48‰, 21.66‰, 16.23‰ and 13.62‰ respectively for P1, P2, P3, P4 and P7) which were higher than the negative control (0‰) and the irrigated soil by fresh water (3.29‰). The micronucleus induction was significantly correlated with the high available fraction of Cd, Co and Zn at P1, P2 and P7. The genotoxicity can be a powerful test to assess the ecological effects associated with the interactions of heavy metals with other pollutants.
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Affiliation(s)
- Mohamed Oubane
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Ahmed Khadra
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Amine Ezzariai
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco
| | - Lamfeddal Kouisni
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco; University Mohammed VI Polytechnic (UM6P), Agrobiosciences Department, Benguerir, Morocco
| | - Mohamed Hafidi
- Laboratory of Microbial Biotechnology, Agrosciences and Environment, Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; University Mohammed VI Polytechnic (UM6P), Agrobiosciences Department, Benguerir, Morocco.
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15
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Adingo S, Yu JR, Xuelu L, Li X, Jing S, Xiaong Z. Variation of soil microbial carbon use efficiency (CUE) and its Influence mechanism in the context of global environmental change: a review. PeerJ 2021; 9:e12131. [PMID: 34721956 PMCID: PMC8522642 DOI: 10.7717/peerj.12131] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/17/2021] [Indexed: 12/05/2022] Open
Abstract
Soil microbial carbon utilization efficiency (CUE) is the efficiency with which microorganisms convert absorbed carbon (C) into their own biomass C, also referred to as microorganism growth efficiency. Soil microbial CUE is a critical physiological and ecological parameter in the ecosystem’s C cycle, influencing the processes of C retention, turnover, soil mineralization, and greenhouse gas emission. Understanding the variation of soil microbial CUE and its influence mechanism in the context of global environmental change is critical for a better understanding of the ecosystem’s C cycle process and its response to global changes. In this review, the definition of CUE and its measurement methods are reviewed, and the research progress of soil microbial CUE variation and influencing factors is primarily reviewed and analyzed. Soil microbial CUE is usually expressed as the ratio of microbial growth and absorption, which is divided into methods based on the microbial growth rate, microbial biomass, substrate absorption rate, and substrate concentration change, and varies from 0.2 to 0.8. Thermodynamics, ecological environmental factors, substrate nutrient quality and availability, stoichiometric balance, and microbial community composition all influence this variation. In the future, soil microbial CUE research should focus on quantitative analysis of trace metabolic components, analysis of the regulation mechanism of biological-environmental interactions, and optimization of the carbon cycle model of microorganisms’ dynamic physiological response process.
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Affiliation(s)
- Samuel Adingo
- College of Forestry, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Jie-Ru Yu
- College of Resources and Environment, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Liu Xuelu
- College of Resources and Environment, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Xiaodan Li
- School of Management, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Sun Jing
- College of Resources and Environment, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Zhang Xiaong
- College of Forestry, Gansu Agricultural University, Lanzhou, Gansu, China
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16
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Soil Bacteria to Regulate Phoebe bournei Seedling Growth and Sustainable Soil Utilization under NPK Fertilization. PLANTS 2021; 10:plants10091868. [PMID: 34579400 PMCID: PMC8471390 DOI: 10.3390/plants10091868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022]
Abstract
Soil bacteria play a key role in the plant–soil system and can regulate the growth of Phoebe bournei seedlings under fertilization. However, there are few reports on how soil bacteria respond to fertilization and regulate seedling growth. This study adopted the “3414” field fertilization experiment, combined with soil microbial sequencing, nutrient contents, and biomass measurement, to explore the changes of soil chemical properties and bacterial structure under different NPK fertilization conditions and to establish the coupling relationship between soil bacteria, soil nutrients, and plant growth. The results showed that NPK fertilization decreased soil pH; increased soil N, P, and K content; reduced bacterial diversity and abundance; promoted the growth of dominant bacterial species; and enhanced Phoebe bournei seedlings’ soil N, P, and K elements. NPK fertilization promoted Proteobacteria growth, especially of three genera (Methylobacterium, Sphingobium, and Acinetobacter) and Actinobacteria, while it decreased Acidobacteria and Chloroflexi. By reducing the ratio of N to K and increasing P, NPK fertilization can slow soil acidification, promote bacterial reproduction, maintain P. bournei seedlings’ soil ecological stability, and balance the seedlings’ growth and sustainable soil utilization. AD3, Pseudomonas, and Rhodanobacter can be used as the marker species for N, P, and K fertilization, respectively, while Methylobacterium, Brevundimonas, Acinetobacter, and Sphingobium can be used as indicator species for soil pH and soil N, P, and K content changes, respectively. These results provided a theoretical basis and technical guidance for the effective fertilization and cultivation of robust P. bournei seedlings.
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Abstract
As the most important resource for life, water has been a central issue on the international agenda for several decades. Yet, the world’s supply of clean freshwater is steadily decreasing due to extensive agricultural demand for irrigated lands. Therefore, water resources should be used with greater efficiency, and the use of non-traditional water resources, such as Treated Wastewater (TW), should be increased. Reusing TW could be an alternative option to increase water resources. Thus, many countries have decided to turn wastewater into an irrigation resource to help meet urban demand and address water shortages. However, because of the nature of that water, there are potential problems associated with its use in irrigation. Some of the major concerns are health hazards, salinity build-up, and toxicity hazards. The objectives of this comprehensive literature review are to illuminate the importance of using TW in irrigation as an alternative freshwater source and to assess the effects of its use on soil fertility and other soil properties, plants, and public health. The literature review reveals that TW reuse has become part of the extension program for boosting water resource utilization. However, the uncontrolled application of such waters has many unfavorable effects on both soils and plants, especially in the long-term. To reduce these unfavorable effects when using TW in irrigation, proper guidelines for wastewater reuse and management should be followed to limit negative effects significantly.
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Xi B, Yu H, Li Y, Dang Q, Tan W, Wang Y, Cui D. Insights into the effects of heavy metal pressure driven by long-term treated wastewater irrigation on bacterial communities and nitrogen-transforming genes along vertical soil profiles. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123853. [PMID: 33264929 DOI: 10.1016/j.jhazmat.2020.123853] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 06/12/2023]
Abstract
Irrigation with treated wastewater (TWW) influences soil ecological function due to the accumulation of heavy metals (HMs) and nutrients in soils. However, the interaction between HMs and microbial processes in TWW-irrigated soil has not been fully explored. We investigated the effect of HMs on bacterial communities and nitrogen-transforming (N-transforming) genes along vertical soil profiles irrigated with domestic TWW (DTWW) and industrial TWW (ITWW) for more than 30 years. Results indicate that long-term TWW irrigation reshaped bacterial community structure and composition. Irrigation with ITWW led to increased accumulation of Cd, Cr, Cu, Pb, Zn, and Ni in soils than DTWW. Accumulation of inorganic N, soil organic carbon, and HMs in topsoil irrigated with ITWW contributed to the activities of Micrococcaceae. The effect of the activation of nutrient factors on Bacillus, which was the dominant species in DTWW-irrigated soils, was greater than that of HMs. HM pressure driven by ITWW irrigation changed the vertical distribution of N-transforming functional genes, increasing the abundance of amoA gene and decreasing that of nifH through soil depth. ITWW irrigation enhanced the denitrification capacity in topsoil; ammonia-oxidizing capacity in deeper soil was increased after long-term irrigation with DTWW and ITWW, suggesting a potential risk of nitrogen loss.
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Affiliation(s)
- Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Hong Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China
| | - Yanping Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qiuling Dang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China.
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yan Wang
- School of Water and Environment, Chang'an University, Xi'an, 710054, China
| | - Dongyu Cui
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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Rossi G, Mainardis M, Aneggi E, Weavers LK, Goi D. Combined ultrasound-ozone treatment for reutilization of primary effluent-a preliminary study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:700-710. [PMID: 32820435 PMCID: PMC7782427 DOI: 10.1007/s11356-020-10467-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/10/2020] [Indexed: 05/12/2023]
Abstract
The present work is a preliminary study on the potential of low-frequency ultrasound irradiation coupled with O3 process for the disinfection of a primary effluent from a municipal wastewater treatment plant preserving nutrient levels (in particular nitrogen and phosphorous), for its possible reuse in civil, industrial, and agricultural sectors. The treated water could be reused, after appropriate dilution, contributing to the circular economy perspective and reducing the need for both chemical fertilizer addition and freshwater supply. The effect of different specific ultrasonic energies and ozone doses was assessed on a bench-top system, composed of an ultrasonic reactor and a semi-batch ozonation vessel. The results showed that the combined US-O3 process produces a good removal efficiency regarding soluble Chemical Oxygen Demand, sCOD (ca. 60%), anionic surfactants (ca. 50%), and formaldehyde (ca. 50%), and an optimal abatement for Methylene Blue Active Substances (MBAS, > 90%). The process also reached high disinfection performances, obtaining 4 logs for E. coli and 5 log abatement for Total Coliforms. The high removal efficiency is matched by an outstanding retention of nutrients (total nitrogen and orthophosphate) highlighting a high potential value for agricultural reuse of the treated primary effluent, with possible significant saving of chemical fertilizers. It was concluded that low-frequency ultrasound pre-treatment, combined with ozonation, could be a useful process for primary effluent recovery for several purposes. Further studies are expected to be planned and executed to evaluate system scale-up feasibility.
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Affiliation(s)
- Giada Rossi
- Polytechnic Department of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100, Udine, Italy
| | - Matia Mainardis
- Polytechnic Department of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100, Udine, Italy
| | - Eleonora Aneggi
- Polytechnic Department of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100, Udine, Italy.
| | - Linda K Weavers
- Ohio Water Resources Center, Department of Civil, Environmental, and Geodetic Engineering, The Ohio State University, 470 Hitchcock Hall, 2070 Neil Ave., Columbus, OH, 43210, USA
| | - Daniele Goi
- Polytechnic Department of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100, Udine, Italy
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Yang Y, Chen Y, Cai Y, Xing S, Mi J, Liao X. The relationship between culturable doxycycline-resistant bacterial communities and antibiotic resistance gene hosts in pig farm wastewater treatment plants. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111164. [PMID: 32858327 DOI: 10.1016/j.ecoenv.2020.111164] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/03/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Pig farm wastewater treatment plants (WWTPs) are an important repository for resistant bacterial communities (RBCs) and antibiotic resistance genes (ARGs). However, the relationship between RBCs and ARG hosts has not been well characterized. In this study, water samples from influent and effluent from five pig farm WWTPs were collected. Gradient concentrations of doxycycline (DOX) were used to screen the culturable RBCs. The abundance of 21 subtypes of ARGs and the bacterial community were investigated. This study detected a large number of culturable DOX-RBCs and ARGs in the influent and effluent of pig farm WWTPs. The abundances of ARGs and RBCs in all effluent samples was significantly lower than that in the influent samples (P < 0.05), which indicated that the WWTPs can effectively remove most ARGs and RBCs in pig farm wastewater. The main potential culturable RBCs in pig farm wastewater were the dominant bacteria Proteobacteria, Actinobacteria, Pseudomonas, and Rheinheimera. However, most of the ARGs were mainly present in Bacteroidetes, Actinobacteria, Corynebacteriaceae, Macellibacteroides, Acinetobacter, and Enterobacteriaceae, which are considered potential ARG hosts. The results presented here showed that there were obvious differences between the species of culturable DOX-RBCs and ARG hosts in the pig farm WWTPs, which may be due to various environmental factors. This highlights the urgent need for further research on the relationship between RBCs and ARG hosts.
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Affiliation(s)
- Yiwen Yang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China
| | - Yingxi Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China
| | - Yingfeng Cai
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China
| | - Sicheng Xing
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China
| | - Jiandui Mi
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China; Key Laboratory of Tropical Agricultural Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, China
| | - Xindi Liao
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agriculture University, Guangzhou, 510642, China; Key Laboratory of Tropical Agricultural Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, China.
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Poustie A, Yang Y, Verburg P, Pagilla K, Hanigan D. Reclaimed wastewater as a viable water source for agricultural irrigation: A review of food crop growth inhibition and promotion in the context of environmental change. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 739:139756. [PMID: 32540653 DOI: 10.1016/j.scitotenv.2020.139756] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/24/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
The geographical and temporal distribution of precipitation has and is continuing to change with changing climate. Shifting precipitation will likely require adaptations to irrigation strategies, and because 35% of rainfed and 60% of irrigated agriculture is within 20 km of a wastewater treatment plant, we expect that the use of treated wastewater (e.g., reclaimed wastewater) for irrigation will increase. Treated wastewater contains various organic and inorganic substances that may have beneficial (e.g., nitrate) or deleterious (e.g., salt) effects on plants, which may cause a change in global food productivity should a large change to treated wastewater irrigation occur. We reviewed literature focused on food crop growth inhibition or promotion resulting from exposure to xenobiotics, engineered nanoparticles, nitrogen, and phosphorus, metals, and salts. Xenobiotics and engineered nanoparticles, in nearly all instances, were detrimental to crop growth, but only at concentrations much greater than would be currently expected in treated wastewater. However, future changes in wastewater flow and use of these compounds and particles may result in phytotoxicity, particularly for xenobiotics, as some are present in wastewater at concentrations within approximately an order of magnitude of concentrations which caused growth inhibition. The availability of nutrients present in treated wastewater provided the greatest overall benefit, but may be surpassed by the detrimental impact of salt in scenarios where either high concentrations of salt are directly deleterious to plant development (rare) or in scenarios where soils are poorly managed, resulting in soil salt accumulation.
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Affiliation(s)
- Andrew Poustie
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557-0258, United States of America
| | - Yu Yang
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557-0258, United States of America
| | - Paul Verburg
- Natural Resources & Environmental Science, University of Nevada, Reno, NV 89557-0186, United States of America
| | - Krishna Pagilla
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557-0258, United States of America
| | - David Hanigan
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557-0258, United States of America.
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Choudri BS, Al-Awadhi T, Charabi Y, Al-Nasiri N. Wastewater treatment, reuse, and disposal-associated effects on environment and health. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1595-1602. [PMID: 32681598 DOI: 10.1002/wer.1406] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/25/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
This paper presents the review of the literature published in the year 2019 related to treatment and reuse of wastewater and effects on the environment and human health. The scientific review on the treatment and reuse of wastewaters is divided into various sections in the paper. The review sections cover wastewater management, reuse, removal of microorganisms, and chemical constituents. Besides, the review also covers research focused on wastewater treatment plants, disposal, and the management of wastewater sludge as well as biosolids in the environment. PRACTITIONER POINTS: This paper highlights the review of scientific literature published in the year 2019.Review provide issues related to health risks associated with human and the general environment on the reuse of wastewater, treatment as well as disposal.The literature review covers selected papers relevant to the topic.
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Affiliation(s)
- B S Choudri
- Center for Environmental Studies and Research, Sultan Qaboos University, Muscat, Oman
| | - Talal Al-Awadhi
- Department of Geography, Sultan Qaboos University, Muscat, Oman
| | - Yassine Charabi
- Center for Environmental Studies and Research, Sultan Qaboos University, Muscat, Oman
| | - Noura Al-Nasiri
- Center for Environmental Studies and Research, Sultan Qaboos University, Muscat, Oman
- Department of Geography, Sultan Qaboos University, Muscat, Oman
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23
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Xu X, Liu S, Zhu X, Guo X. Comparative Study on Soil Microbial Diversity and Structure Under Wastewater and Groundwater Irrigation Conditions. Curr Microbiol 2020; 77:3909-3918. [PMID: 32989486 DOI: 10.1007/s00284-020-02219-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 09/17/2020] [Indexed: 11/30/2022]
Abstract
Wastewater (WW) irrigation to agricultural soils is one of the most economical and effective water-saving strategies. The effects of WW irrigation on soil microbial communities have gained increasing focus as these effects are not well understood. In this study, the effects of WW and groundwater (GW) irrigation on microbial diversity and structure were compared using the high-throughput sequencing analysis of 16S rDNA amplicons. Soil samples irrigated by WW for several decades and maize soil (loamy) samples irrigated by GW were collected from Luancheng Town, Shijiazhuang City, China. Compared to the GW groups, WW groups exhibited non-significant soil bacterial community abundance at the 0-20 and 20-40 cm depths. WW irrigation significantly altered the bacterial community composition and structures compared to GW irrigation. The relative abundance of Proteobacteria and Firmicutes increased in WW irrigated soil, while Actinobacteria decreased. Moreover, 14 significantly abundant biomarkers from Proteobacteria and Firmicutes that corresponded with WW irrigation were identified. Additionally, WW irrigation enriched some KEGG pathways that corresponded with metabolism and human diseases. The physical and chemical properties of WW irrigated soil may shape the compositions and structures of soil bacterial communities. The findings of this study illuminated the effects of wastewater irrigation on microbial characteristics, which is important for estimating the effects of long-term wastewater irrigation on soil environmental health.
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Affiliation(s)
- Xiaotao Xu
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China.,Wuzhi Sub-Bureau of Jiaozuo City Ecological Environment Bureau, Wuzhi, China
| | - Sen Liu
- College of Life Sciences, Henan Normal University, Xinxiang, China
| | - Xiwang Zhu
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China
| | - Xiaoming Guo
- Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, China.
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Li M, Xue L, Zhou B, Duan J, He Z, Wang X, Xu X, Yang L. Effects of domestic sewage from different sources on greenhouse gas emission and related microorganisms in straw-returning paddy fields. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 718:137407. [PMID: 32105919 DOI: 10.1016/j.scitotenv.2020.137407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/29/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
Reusing domestic sewage for crop irrigation is a promising practice, particularly in developing countries, since it is a substitute for chemical fertilizer and reduces water contamination. More attention was paid to the effect of sewage irrigation on crop yield and soil nutrients, but little attention was paid to greenhouse gas (GHG) emission from straw-returning paddy fields. In this study, a soil column monitoring experiment was conducted to assess the effects of untreated domestic sewage (dominated with ammonia) and treated domestic sewage (dominated with nitrate) irrigation on methane (CH4), nitrous oxide (N2O) emission, and related soil microorganisms in straw-returning paddy fields. Results showed that straw-returning dramatically promoted CH4 emission but had little effect on N2O emission. Both untreated and treated domestic sewage irrigation decreased CH4 emission of straw-returning paddy whether nitrogen fertilizer applied or not. The mitigating effect of treated sewage irrigation on CH4 emission was greater than untreated sewage irrigation. CH4 emission had a significant correlation with the abundance of soil methanogens and methanogens/methanotrophs. N2O emission increased with untreated or treated domestic sewage irrigation, although the total N input, including the N carried by sewage water, was the same for all treatments. No significant correlation between N2O and denitrification functional genes was found in this study. Treated domestic sewage irrigation reduced the global warming potential (GWP) by 66.7%, but untreated domestic sewage had no evident influence on the GWP. Results indicated that treated domestic sewage irrigation could significantly inhibit CH4 emission and the GWP by decreasing the ratio of methanogens to methanotrophs, and is promising in mitigating GWP from straw-returned paddy fields.
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Affiliation(s)
- Mengyao Li
- 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 210014, China; School of agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Lihong Xue
- 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 210014, China; School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212001, China.
| | - Beibei Zhou
- College of Environment and Ecology, Jiangsu Open University, Nanjing, Jiangsu 210017, China
| | - Jingjing Duan
- 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 210014, China
| | - Zhu He
- 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 210014, China
| | - Xugang Wang
- School of agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Xiaofeng Xu
- School of agriculture, Henan University of Science and Technology, Luoyang 471023, China
| | - Linzhang Yang
- 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 210014, China
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Burges A, Fievet V, Oustriere N, Epelde L, Garbisu C, Becerril JM, Mench M. Long-term phytomanagement with compost and a sunflower - Tobacco rotation influences the structural microbial diversity of a Cu-contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 700:134529. [PMID: 31693956 DOI: 10.1016/j.scitotenv.2019.134529] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
At a former wood preservation site contaminated with Cu, various phytomanagement options have been assessed in the last decade through physicochemical, ecotoxicological and biological assays. In a field trial at this site, phytomanagement with a crop rotation based on tobacco and sunflower, combined with the incorporation of compost and dolomitic limestone, has proved to be efficient in Cu-associated risk mitigation, ecological soil functions recovery and net gain of economic and social benefits. To demonstrate the long-term effectiveness and sustainability of phytomanagement, we assessed here the influence of this remediation option on the diversity, composition and structure of microbial communities over time, through a metabarcoding approach. After 9 years of phytomanagement, no overall effect was identified on microbial diversity; the soil amendments, notably the repeated compost application, led to shifts in soil microbial populations. This phytomanagement option induced changes in the composition of soil microbial communities, promoting the growth of microbial groups belonging to Alphaproteobacteria, many being involved in N cycling. Populations of Nitrososphaeria, which are crucial in nitrification, as well as taxa from phyla Planctomycetacia, Chloroflexi and Gemmatimonadetes, which are tolerant to metal contamination and adapted to oligotrophic soil conditions, decreased in amended phytomanaged plots. Our study provides an insight into population dynamics within soil microbial communities under long-term phytomanagement, in line with the assessment of soil ecological functions and their recovery.
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Affiliation(s)
- Aritz Burges
- UMR BIOGECO INRA 1202, University of Bordeaux, Bât. B2, allée Geoffroy St-Hilaire, F-33615 Pessac Cedex, France; University of the Basque Country (UPV/EHU), Department of Plant Biology and Ecology, P.O. Box 644, E-48080 Bilbao, Spain.
| | - Virgil Fievet
- UMR BIOGECO INRA 1202, University of Bordeaux, Bât. B2, allée Geoffroy St-Hilaire, F-33615 Pessac Cedex, France
| | - Nadège Oustriere
- Laboratoire Génie Civil et Géoenvironnement (LGCGE), Yncréa Hauts-de-France, Institut Supérieur d'Agriculture, 48 Bld Vauban, 59046 Lille Cedex, France
| | - Lur Epelde
- NEIKER-Tecnalia, Department of Ecology and Natural Resources, Soil Microbial Ecology Group, c/ Berreaga 1, E-48160 Derio, Spain
| | - Carlos Garbisu
- NEIKER-Tecnalia, Department of Ecology and Natural Resources, Soil Microbial Ecology Group, c/ Berreaga 1, E-48160 Derio, Spain
| | - Jose María Becerril
- University of the Basque Country (UPV/EHU), Department of Plant Biology and Ecology, P.O. Box 644, E-48080 Bilbao, Spain
| | - Michel Mench
- UMR BIOGECO INRA 1202, University of Bordeaux, Bât. B2, allée Geoffroy St-Hilaire, F-33615 Pessac Cedex, France
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Cui G, Bhat SA, Li W, Wei Y, Kui H, Fu X, Gui H, Wei C, Li F. Gut digestion of earthworms significantly attenuates cell-free and -associated antibiotic resistance genes in excess activated sludge by affecting bacterial profiles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:644-653. [PMID: 31326798 DOI: 10.1016/j.scitotenv.2019.07.177] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
Vermicomposting can significantly attenuate antibiotic resistance genes (ARGs) in the excess activated sludge (EAS). However, the effect of earthworms, especially the effect of gut digestion as a critical step in the vermicomposting process, remains unclarified. The purpose of this study was to investigate the response of ARGs (cell-free and -associated) in EAS to gut digestion of earthworms and to clarify the possible mechanism from the viewpoint of bacterial community through quantitative polymer chain reaction (q-PCR) and high throughput sequencing. Compared to the initial sludge, the earthworm casts were observed to have significantly lower absolute abundances of ARGs, especially qnrS, tetM, and tetX with the removal exceeding 90%. Cell-free and -associated ARGs (except sul1 and tetG) had equivalent contributions to the attenuation of each ARG. Remarkable reductions of bacterial number and alpha diversity (chao1 and Shannon) were detected in the casts. Spearman correlation analysis between the targeted genes and bacterial community indicates that twelve different phyla mainly including Acidobacteria, Euryarchaeota, Deinococcus-Thermus, Chlorobi, Firmicutes, Fibrobacteres, and Proteobacteria are the potential ARGs hosts, suggesting that the fate and behaviour of these hosts during gut digestion of EAS by earthworms substantially determined the dynamics of the ARGs. These findings increase our understanding of earthworm gut digestion as an important process for the attenuation of ARGs in EAS, and contribute towards preventing their release into the total environment.
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Affiliation(s)
- Guangyu Cui
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China; River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Sartaj Ahmad Bhat
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Wenjiao Li
- Graduate School of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yongfen Wei
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Huang Kui
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Xiaoyong Fu
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Hongjie Gui
- School of Environmental Science and Engineering, Tan Kah Kee College, Xiamen University, Zhangzhou 363105, China
| | - Chaohai Wei
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Fusheng Li
- River Basin Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
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27
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Dang Q, Tan W, Zhao X, Li D, Li Y, Yang T, Li R, Zu G, Xi B. Linking the response of soil microbial community structure in soils to long-term wastewater irrigation and soil depth. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 688:26-36. [PMID: 31233911 DOI: 10.1016/j.scitotenv.2019.06.138] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/04/2019] [Accepted: 06/08/2019] [Indexed: 05/08/2023]
Abstract
Irrigation with treated wastewater (TWW) has become a prevailing agricultural practice due to the scarcity of fresh water resources, which may have a significant impact on the microbial communities that are critical to many biogeochemical processes in soils. However, it is unclear whether there are links between soil microbial responses to long-term irrigation with different sources of wastewater and soil depth. Here we assess the influence of treated domestic (DTWW), leather industry (LTWW) and pharmaceutical (PTWW) wastewater on microbial communities in vertical soil profiles using high-throughput sequencing based on 16S rRNA and internal transcribed spacer (ITS) gene profiling. We found that microbial α-diversity in the vertical profiles of soils was significantly influenced by TWW irrigation. Bacteria and fungi in different soil depths showed distinct responses to TWW; irrigation with TWW markedly increased abundance of bacterial OTUs and inhibited abundance of fungal OTUs. β-diversity analysis showed that the effect of TWW irrigation on microbial communities was greater than the effect of soil depth, and microbes in subsurface soil were more sensitive to different sources of irrigation water. We also found that, based on β-diversity analysis, irrigation with treated industrial wastewater, including LTWW and PTWW, had a greater impact on microbial community structures than DTWW. TWW irrigation significantly affected the composition of indigenous soil microbial communities at different depths and might introduce exogenous microbes into the soil environment. Our work explicitly demonstrates the vertical responses of bacterial and fungal communities in soils to irrigation with TWW from different sources, which can provides insights into the microbial-dominated geochemical processes from the perspective of the entire soil profile under the context of wastewater irrigation.
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Affiliation(s)
- Qiuling Dang
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xinyu Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Dan Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yanping Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Tianxue Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Renfei Li
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Guofeng Zu
- Groundwater Pollution Control and Remediation Industry Alliance, Beijing 100012, China
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Li R, Zhang Y, Yu H, Dang Q, Yu H, Xi B, Tan W. Biouptake Responses of Trace Metals to Long-Term Irrigation with Diverse Wastewater in the Wheat Rhizosphere Microenvironment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16173218. [PMID: 31484337 PMCID: PMC6747335 DOI: 10.3390/ijerph16173218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/28/2019] [Accepted: 08/30/2019] [Indexed: 12/21/2022]
Abstract
Wastewater irrigation is widely practiced and may cause serious environmental problems. However, current knowledge on the effects of long-term irrigation with wastewater from different sources on the biouptake of trace metals (TMs) in the rhizosphere zone by plants in farmlands is limited. Here, we analyzed wheat rhizosphere soil and wheat roots collected from a typical wastewater irrigation area in North China to evaluate the influence of wastewater irrigation from different sources on the bioavailability of trace metals in soils. Results showed that irrigation with tanning and domestic wastewater helped enhance the bioavailability of trace metals in rhizosphere soil by increasing the active organic carbon content, soil redox potential, and catalase activity, thus enhancing the proportion of the potentially bioavailable part of trace metal speciation. Conversely, irrigation with pharmaceutical wastewater can reduce the bioavailability of trace metals in rhizosphere soil by increasing total soil antibiotics and thus decreasing the proportions of bioavailable and potentially bioavailable parts of trace metal speciation. These findings can provide insights into the migration and transformation of trace metal speciation in soil rhizosphere microenvironments under the context of wastewater irrigation.
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Affiliation(s)
- Renfei Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Yuan Zhang
- Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, China.
| | - Hong Yu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Qiuling Dang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Hanxia Yu
- School of Life Sciences, South China Normal University, Guangzhou 510631, China.
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Wei Z, Hao Z, Li X, Guan Z, Cai Y, Liao X. The effects of phytoremediation on soil bacterial communities in an abandoned mine site of rare earth elements. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:950-960. [PMID: 30921727 DOI: 10.1016/j.scitotenv.2019.03.118] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/08/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Overexploitation of rare earth elements (REEs) has caused serious desertification and environmental pollution. The ecological restoration of mining areas has attracted increasing attention in China. Soil microbiota is important for successful ecological remediation of abandoned mine land. In this study, soil samples were collected from a restored REE mine site, and the bacterial community composition and diversity were assessed by Illumina high-throughput sequencing targeting the V3-V4 region of the 16S rRNA gene. Microbiota significantly developed in the remediated land. A total of 663,781 effective 16S rRNA gene sequences were obtained, which were classified into 28 bacterial phyla and 3 archaeal phyla. The dominant phyla across all samples (>5% of total effective sequences) were Proteobacteria, Acidobacteria and Firmicutes. Bacterial diversity indices (OTU number, Shannon index and Chao1 index) of the restored soils were higher than those of the tailings and even surpassed those in the unmined site. Redundancy analysis indicated that soil nutrients (soil organic carbon, available phosphorus and total nitrogen) were the dominant factors, followed by soil pH, affecting bacterial community structure. In general, these results suggested that soil amendment and phytoremediation effectively improved the soil environment of the abandoned mine site, which also increased our understanding of the correlation between microbial variation and soil properties in restored REE mine soils.
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Affiliation(s)
- Zhiwen Wei
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China; The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, Jiangsu Normal University, Xuzhou 221116, China
| | - Zhikui Hao
- Institute of Applied Biotechnology, Taizhou Vocational and Technical College, Taizhou 318000, China
| | - Xunhang Li
- The Bioscience and Engineering College, Jiangxi Agriculture University, Nanchang 330045, China
| | - Zhengbing Guan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Yujie Cai
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Xiangru Liao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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Li C, Li B, Bi E. Characteristics of hydrochemistry and nitrogen behavior under long-term managed aquifer recharge with reclaimed water: A case study in north China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 668:1030-1037. [PMID: 31018445 DOI: 10.1016/j.scitotenv.2019.02.375] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/04/2019] [Accepted: 02/24/2019] [Indexed: 06/09/2023]
Abstract
Due to the quality difference between reclaimed water and natural groundwater, managed aquifer recharge (MAR) with reclaimed water may pose environmental risks. A river infiltration of reclaimed water for groundwater recharge in north China has been in operation for over 10 years. To investigate the actual impact on native groundwater under long-term MAR, 10-year monitoring data of recharge water and groundwater were analyzed. Due to the effect of recharge, the hydrochemical type of groundwater rapidly changed from Ca-Mg-HCO3 into Na-HCO3 which was the type of recharge water. Cl- was used as a conservative tracer in a physical mixing model, and the mixing was concluded to be dominant in the groundwater hydrochemical change under long-term MAR. The hydraulic travel time to the 30 m depth was determined to be about 6.5 months by obtaining the best-fit linear cross correlation between the concentrations of Cl- in recharge water and those in groundwater. In application of this method, the monitoring wells should be located downstream and as close as possible to the recharge site (e.g., <50 m). Based on the travel time, behaviors of total nitrogen (TN), NO3-N, NO2-N, and NH4-N were determined by attenuation factor (Af). As the main nitrogen compound, NO3-N was well attenuated under high hydraulic load, resulting in the Af > 1, with an attenuation rate of 99.6%. The Af < 1 of NH4-N indicated the additional input of NH4-N in groundwater. Fluctuations of NH4-N in recharge water exceeded 4 mg/L changes sorption equilibrium, resulting in the sorption/desorption of NH4-N in soil-groundwater system. The concentration of NH4-N in groundwater increased in the later period of monitoring. The overall attenuation rate of NH4-N was 26.3%. These findings contributed to improving the environmental benefits of this MAR site and provided guidance for other similar projects.
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Affiliation(s)
- Congzhou Li
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, Beijing Key Laboratory of Water Resources and Environmental Engineering, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China
| | - Binghua Li
- Department of Water Resources, Beijing Water Science and Technology Institute, Beijing 100048, PR China
| | - Erping Bi
- MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, Beijing Key Laboratory of Water Resources and Environmental Engineering, and School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China.
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Biogas slurry as draw solution of forward osmosis process to extract clean water from micro-polluted water for hydroponic cultivation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.01.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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