Article
Environmental Sciences
Phuong Minh Nguyen, Muhammad Arslan, Uwe Kappelmeyer, Ines Mausezahl, Arndt Wiessner, Jochen A. Mueller
Summary: This study shows the structural organization of microbial transformation of inorganic sulfur compounds (ISCs) in constructed wetlands. The fully planted wetland exhibits higher sulfur cycling activity, which is related to the differences in bacterial communities between the roots and porewater.
Article
Environmental Sciences
Samantha C. Nyer, Nils Volkenborn, Robert C. Aller, Molly Graffam, Qingzhi Zhu, Roy E. Price
Summary: Constructed wetlands have been widely used for domestic wastewater treatment, but the complex biogeochemical processes occurring within them, particularly regarding plant-soil (and nitrogen) interactions, are not well understood. This study used nitrogen porewater measurements and chemical imaging to investigate the impact of plants on soil redox dynamics and nitrogen biogeochemical cycling in constructed wetlands. The findings revealed that plant roots transported oxygen to anoxic sediments through radial oxygen loss, and the extent of oxic and anoxic areas strongly correlated with the removal of ammonium and nitrogen oxides. Additionally, microscale spatio-temporal redox heterogeneity within the rhizosphere promoted nitrogen removal by stimulating the coupling between nitrification and denitrification. This study highlights the significant role of plants in controlling soil conditions and nitrogen cycling in constructed wetland systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Hong-cheng Wang, Ying Liu, Yu-meng Yang, Ying-ke Fang, Shuang Luo, Hao-yi Cheng, Ai-jie Wang
Summary: Constructed wetlands integrated with sulfur autotrophic denitrification using elemental sulfur as the carbon source have the potential to efficiently remove nitrogen from carbon-limited wastewater. The sulfur autotrophic denitrification process in the SCW enhances nitrate removal efficiency and rate. The combined CW-SCW system allows for simultaneous removal of total ammonia nitrogen and nitrate.
Article
Engineering, Environmental
Jie Li, Lin Liu, Yu-Ming Zheng, Lin Ma, Quan-Bao Zhao, Chao-Xiang Liu
Summary: This study found that plants (Phragmites) play a significant role in the anammox-driven wetlands, enhancing the nitrogen transformation. The proportion of anammox process in nitrogen metabolism was estimated to be 45-63% in plant groups. The presence of plants significantly increased the total nitrogen removal efficiency and the abundance of anammox bacteria.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Lin Zhao, Guiping Fu, Weicheng Pang, Xiaxin Li, Chao Pan, Zhangli Hu
Summary: We evaluated a novel autotrophic denitrification and nitrification integrated constructed wetland (ADNI-CW) for treating mariculture wastewater. The process involved an up-flow autotrophic denitrification constructed wetland unit (AD-CW) and an autotrophic nitrification constructed wetland unit (AN-CW). The experiment investigated the performance of these units and the entire ADNI-CW process under various conditions. The study found that the coupling of metabolic processes enhanced nitrogen removal and laid the foundation for sustainable mariculture development.
Article
Environmental Sciences
Shenyan Zhou, Ran Zhao, Qiming Li, Juan Du, Chen Chen, Qianqian Lu, Miao Zhang, Dehua Zhao, Shuqing An
Summary: The study found that under high salinity conditions, soil SFCWs performed better in removing pollutants such as salt, nitrogen, and phosphorous, also promoting the stable development of macrophytes and rhizosphere microbial communities.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jingying Zhang, Zhiyong Shao, Bin Li, Ge Bai, Lei Yang, Yanbin Chi, Min Wang, Yongxiang Ren
Summary: Reducing the depth of the substrate in SSF CWs to limit the vertical growth space of roots can improve the dissolved oxygen concentration and pollutant removal efficiency, promote the morphological adaptation mechanisms of plants, and increase root activity, thus enhancing the absorption efficiency of wetland plants and substrate and achieving efficient pollutant removal capacity.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Wenbo Liu, Md Hasibur Rahaman, Jun Zhai, Jacek Makinia
Summary: The study investigated the coupling transformation of carbon, nitrogen, and sulfur compounds in a full-scale horizontal subsurface flow wetland. Results showed that heterotrophic denitrification and sulfide-based autotrophic denitrification were the main pathways. Increasing TOC or NO3- concentrations promoted heterotrophic denitrification, while increasing S2- concentrations enhanced sulfide-based autotrophic denitrification.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Xinyue Zhao, Mengran Guo, Juntong Chen, Zhixuan Zhuang, Tuoshi Zhang, Xiaohui Wang, Chunyan Li, Ning Hou, Shunwen Bai
Summary: This study investigated rhizosphere microbial dynamics in constructed wetlands (CWs) under influent COD perturbation and found that CWs had strong adaptability to different COD concentrations, with rhizosphere microorganisms competing for niches to maintain system stability.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Zhongshuo Xu, Wenwen Qiao, Xinshan Song, Yuhui Wang
Summary: The study showed that vertical flow constructed wetlands using natural pyrite as substrate can enhance nitrate removal efficiency and promote heterotrophic denitrification to avoid nitrite accumulation. Additionally, the growth of plants in wetlands, particularly Canna indica, was better in wetlands using pyrite as substrate. High-throughput sequencing revealed differences in denitrifying bacteria, iron oxidation and reduction microorganisms, and rhizosphere microorganisms in the wetlands.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Yan Wang, Fan Wu, Xin Li, Changchao Li, Yongkang Zhao, Yuxue Gao, Jian Liu
Summary: This study explored the effects of plants and microorganisms on nutrient cycling and carbon-nitrogen coupling in constructed wetlands. Results indicated that plants have a significant influence on soil carbon and nitrogen content, while microbial taxa play a crucial role in regulating soil element cycles. This research has implications for increasing the carbon sink of constructed wetlands and mitigating the effects of global warming.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Ying Liu, Hong-Cheng Wang, Yi-Lu Sun, Hao-Yi Cheng, Shao-Yong Lu, Ai-Jie Wang
Summary: The study focuses on a novel approach in constructed wetlands technology by using a sulfur-siderite composite filler (SSCF-CW). The results show that SSCF-CW has remarkable removal efficiencies in low C/N wastewater treatment and enhances system stability and performance. This technology offers a cost-effective and sustainable low-carbon solution for municipal wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaoyu Ma, Yanliang Du, Wenqi Peng, Shuanghu Zhang, Xiaobo Liu, Shiyang Wang, Shoujun Yuan, Olaf Kolditz
Summary: The study indicates that the integrated vertical flow constructed wetland has favorable performance in removing ammonia and total nitrogen, with significant effects of vegetation on treatment efficiency. Oxygen loss and organic carbon release from plant roots play crucial roles in the treatment processes.
Article
Engineering, Environmental
Mengni Tao, Yu Kong, Zhaoqian Jing, Lin Guan, Qiusheng Jia, Yiwei Shen, Meijia Hu
Summary: This study explores the utilization of agricultural waste (corncob) to promote nitrogen removal in an up-flow constructed wetland (CW) and investigates the corncob dosage and nitrogen transformations in CW. The results show that a proper dosage of corncobs can efficiently and stably remove nitrogen residues, with enhanced nitrification and denitrification in the wetland.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Review
Engineering, Environmental
Deepti Negi, Shelly Verma, Swati Singh, Achlesh Daverey, Jih-Gaw Lin
Summary: Constructed wetland is a sustainable eco-technology for remediation of contaminants, but its nitrogen removal efficiency is unsatisfactory. Anammox, an eco-friendly technology, can be integrated into constructed wetlands to overcome the shortcomings.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Gilles Vincent, Kankan Shang, Guowei Zhang, Florent Chazarenc, Jacques Brisson
WATER SCIENCE AND TECHNOLOGY
(2018)
Article
Engineering, Environmental
S. Levesque, E. Demers, J. Brisson, Y. Comeau
WATER SCIENCE AND TECHNOLOGY
(2017)
Article
Ecology
Anant Yadav, Florent Chazarenc, Srikanth Mutnuri
ECOLOGICAL ENGINEERING
(2018)
Review
Ecology
Danielle Dagenais, Jacques Brisson, Tim D. Fletcher
ECOLOGICAL ENGINEERING
(2018)
Article
Environmental Sciences
Cristian Barca, Nicolas Roche, Stephane Troesch, Yves Andres, Florent Chazarenc
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2018)
Article
Environmental Sciences
Dominic Desjardins, Nicholas J. B. Brereton, Lilian Marchand, Jacques Brisson, Frederic E. Pitre, Michel Labrecque
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Ecology
P. Boivin, S. de Blois, J. Brisson
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2018)
Article
Ecology
Chloe Fredette, Zhanna Grebenshchykova, Yves Comeau, Jacques Brisson
ECOLOGICAL ENGINEERING
(2019)
Article
Forestry
Elise Deschenes, Marie-Helene Brice, Jacques Brisson
FOREST ECOLOGY AND MANAGEMENT
(2019)
Review
Environmental Sciences
Chloe Fredette, Michel Labrecque, Yves Comeau, Jacques Brisson
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Ecology
Zhanna Grebenshchykova, Jacques Brisson, Florent Chazarenc, Yves Comeau
ECOLOGICAL ENGINEERING
(2020)
Article
Engineering, Environmental
Hernan Ruiz-Ocampo, Katharina Tondera, Joelle Paing, Pascal Molle, Florent Chazarenc
Summary: The study aimed to investigate the long-term effectiveness of using zeolite as a reactive material in a vertical-flow wetland for ammonium removal from domestic wastewater under field conditions. The results showed that zeolite could increase the removal efficiency of ammonium by approximately 9% compared to Leca.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Plant Sciences
P. L. Chagnon, J. Brisson
Article
Biodiversity Conservation
Chaeho Byun, Sylvie de Blois, Jacques Brisson
BIOLOGICAL INVASIONS
(2018)
Article
Ecology
Alexander M. Cancelli, Frank A. P. C. Gobas
Summary: A mechanistic model was developed to assess the removal efficiency of pollutants in a wetland system, particularly in oil sands process-affected water (OSPW). The model simulated wetland mechanisms of chemical removal and showed that sustained wetland treatment is feasible. It is a helpful tool to evaluate the feasibility of treatment systems and to assess trade-offs in wetland design and operation.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Prakash Singh Thapa, Hiromu Daimaru, Seiji Yanai
Summary: This study assessed the vegetation recovery and erosion condition in a landslide area in central Japan. The results show that the upper slope, where reforestation activities were implemented, has seen significant vegetation recovery and no significant erosion, while the lower slope lacks vegetation and has experienced continued erosion.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Mike Jerauld, Forrest Dierberg, Thomas DeBusk, Scott Jackson, Kevin Grace, John Juston
Summary: The Everglades Stormwater Treatment Areas (STAs) are constructed wetlands built to remove phosphorus (P) from agricultural and urban runoff in support of Everglades restoration. Research shows that the levels of calcium (Ca) and alkalinity (Alk) have an impact on phosphorus removal in these wetlands.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Kalindhi Larios, Stefan Gerber, Rafael Munoz-Carpena, Patrick Inglett, K. Ramesh Reddy, Michael Chimney
Summary: This study modeled the phosphorus biogeochemical dynamics in one of the best performing Everglades treatment wetlands and found that the complexity of the hydrological system significantly affected the simulated water column P concentration. The modeling tool developed in this study can guide future data collection and optimization efforts for treatment wetlands in the Everglades.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Jing Hu, Benjamin Baiser, R. Thomas James, K. Ramesh Reddy
Summary: This study examined the long-term phosphorus retention in Stormwater Treatment Areas (STAs) and identified the factors influencing their performance. The results showed that the operational performance of STAs improved over time. There were notable differences among individual STAs, with the co-precipitation of phosphorus with calcium playing a critical role in one of the STAs. This highlights the complexity of phosphorus removal in STAs and the need for site-specific management strategies.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Odi Villapando, K. R. Reddy, J. King
Summary: The biogeochemical response to different flow conditions within two parallel flow-ways in Everglades Stormwater Treatment Area (STA)-2 was studied. It was found that there was a gradual decrease in the total phosphorus (TP) concentration from inflow to outflow for both emergent aquatic vegetation (EAV) and submerged aquatic vegetation (SAV) dominated systems, with EAV showing a higher reduction rate. Significant increase in TP concentration was observed in the SAV system under no flow condition, possibly due to the production of particulate phosphorus (PP) through various mechanisms.
ECOLOGICAL ENGINEERING
(2024)