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Removal of arsenic by pilot-scale vertical flow constructed wetland

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-021-1435-1

Abstract:

• VFCWs are effective for the treatment of arsenic-containing wastewater.

Keywords： Constructed wetland     Arsenic     Removal efficiency     Mass balance    

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Effect of wetland plant fermentation broth on nitrogen removal and bioenergy generation in constructed

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1592-x

Abstract:

● Fermentation broth facilitates N removal and energy yields in tertiary CW-MFC.

Keywords： Constructed wetland     Microbial fuel cell     Nitrogen removal     Bioenergy generation     Carbon source    

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Restoration of hyper-eutrophic water with a modularized and air adjustable constructed submerged plant

Jinzhong LI, Xueju LI, Shujuan SUN, Xuegong LIU, Suiliang HUANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 573-584 doi: 10.1007/s11783-011-0363-x

Abstract: A modularized and air adjustable constructed submerged plant bed (CSPB) which can be used to restore

Keywords： modularized and air adjustable constructed submerged plant bed     water purification     eco-restoration techniques    

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Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable

Frontiers of Engineering Management   Pages 582-596 doi: 10.1007/s42524-023-0268-y

Abstract: To mitigate these challenges, green and blue infrastructures (GBIs), such as constructed wetlands, haveThis study evaluates the potential of eight constructed wetlands near Beijing, China, focusing on theirThe ternary phase diagram reveals that all constructed wetlands provide more benefits than costs andCW-4 shows the highest benefit‒cost ratio, reaching 50%, while free water surface constructed wetlandwetlands, providing valuable insights for policymakers in selecting suitable constructed wetlands for

Keywords： constructed wetland     emergy     ecosystem services     disservices     ternary diagram    

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Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow constructed

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 906-912 doi: 10.1007/s11783-013-0579-z

Abstract: Subtropical climatic conditions can contribute to the death of the aerial parts of constructed wetlandThis presents a barrier to the widespread application of constructed wetland and is an issue that urgentlyand the change in root structure of plants in the plant-intercropping model within the vertical-flow constructedplants with major growth advantages used in A were capable of creating a more favorable vertical-flow constructed, the plant-intercropping model (A) is more suitable for use in the cold environment experienced by constructed

Keywords： vertical-flow constructed wetlands     plant intercropping model     warm seasonal plant model    

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Removal, distribution and plant uptake of perfluorooctane sulfonate (PFOS) in a simulated constructed

Weichuan Qiao, Rong Li, Tianhao Tang, Achuo Anitta Zuh

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1312-3

Abstract: A vertical-flow constructed wetland (VFCW) was used to treat simulated domestic sewage containing perfluorooctane

Keywords： Vertical-flow constructed wetland     Perfluorooctane sulfonate     Wetland plants     Soil microbial community     Effect    

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Sulfur cycle as an electron mediator between carbon and nitrate in a constructed wetland microcosm

Wenrui Guo, Yue Wen, Yi Chen, Qi Zhou

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 4, doi: 10.1007/s11783-020-1236-y

Abstract: A constructed wetland microcosm was employed to investigate the sulfur cycle-mediated electron transferThese results improved understanding of electron transfers among carbon, nitrogen, and sulfur cycles in constructed

Keywords： Constructed wetland     Sulfur cycle     Electron transfer     Denitrification    

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Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 649-657 doi: 10.1007/s11783-012-0426-7

Abstract: A stormwater wetland treating non-point source pollution (NPS) from a 64 ha agricultural watershed was monitored over a period of five months. The results indicated that pH and dissolved oxygen (DO) were increased in the wetland due to the algal growth. The highest total suspended solids (TSS) concentration was observed in the aeration pond due to the resuspension of solids, decreased in the wetland. The respective decreases in total nitrogen (TN) and total kjeldahl nitrogen (TKN) were 15.9% and 28.7% on passing through the wetland. The nitrate and ammonia were increased by 45.4% and decreased by 79.9%, respectively. These variations provided strong evidence for the existence of nitrification. The total phosphorus (TP) and phosphate had respective reductions of 52.3% and 58.2% over the wetland. The total chemical oxygen demand (TCOD) and soluble chemical oxygen demand (SCOD) were also decreased. Generally, the TN, TP and phosphate removal efficiencies were positive. These positive removal efficiencies were mainly due to microbial activities, uptake by plants, and chemical precipitation at high pH. Negative removal efficiencies can be caused by continuous rainfall activities, with short antecedent dry days (ADDs) and unstable hydraulic conditions, some other biogeochemical transformations and algal growth also being important parameters.

Keywords： constructed stormwater wetland     dry days     nitrification and denitrification     pollutants characteristic    

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Relationships between loading rates and nitrogen removal effectiveness in subsurface flow constructed

ZHANG Rongshe, LI Guanghe, ZHANG Xu, ZHOU Qi

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 89-93 doi: 10.1007/s11783-008-0002-3

Abstract: Nitrogen removal of wetlands under 40 different inflow loadings were studied in the field during 15 months. The removal efficiency of four different sets of beds, namely the reed bed, the Zizania caduciflor bed, the mixing planting bed, and the control bed were studied. The outflow loading and total nitrogen (TN) removal rate of these beds under different inflow loadings and pollution loadings were investigated. The inflow loadings of 4 sub-surface flow systems (SFS) ranged from 400 to 8000 mg·(m·d), while outflow loadings were less than 7000 mg·(m·d). The results showed that the inflow and outflow loading of TN removal rate in SFS presented an obvious linear relationship. The optical inflow loading to run the system was between 2000 to 4000 mg·(m·d). Average removal rate was between 1062 and 2007 mg·(m·d). SFS with plant had a better removal rate than the control. TN removal rates of the reed and Zizania caduciflora bed were 63% and 27% higher than the control bed, respectively. The results regarding the TN absorption of plants indicated that the absorption amount was very limited, less than 5% of the total removal. It proved that plants clearly increase TN removal rates by improving the water flow, and increasing the biomass, as well as activities of microorganisms around the roots. The research provided a perspective for understanding the TN removal mechanism and design for SFS.
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REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 627-638 doi: 10.15302/J-FASE-2023516

Abstract: Introducing river water into constructed wetlands along river course has proven to be an effective solutionThis paper reports 9 years of monitoring the Yong’an River and its surrounding constructed wetlandsthe main types of pollutants in the river, and evaluated the removal efficiency of pollutants by the constructedAlthough constructed wetlands are effective in removing NO3–-N and P, theircontributes to the understanding of the potential issues that may arise during the extended use of constructed

Keywords： inflowing rivers     surface-flow constructed wetland     nutrients     long-term monitoring    

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Simultaneous enhanced ammonia and nitrate removal from secondary effluent in constructed wetlands using

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1807-4

Abstract:

● MnO2/PCL composite material (MPCM) enhances ammonia and nitrate removal in CWs.

Keywords： Constructed wetland     Nitrogen removal     Manganese redox     Polycaprolactone     Nitrous oxide    

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Enhanced nitrogen removal reliability and efficiency in integrated constructed wetland microcosms using

Yue WEN, Chao XU, Gang LIU, Yi CHEN, Qi ZHOU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 140-147 doi: 10.1007/s11783-011-0286-6

Abstract: and enhance the efficiency of nitrogen removal in vertical flow-horizontal subsurface flow (VF-HSF) constructedTwo sets of VF-HSF constructed wetlands were built, VF1-HSF1 and VF2-HSF2, and a zeolite section was

Keywords： constructed wetland     zeolite     bioregeneration     nitrogen removal    

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tetrachlorobisphenol A and the effects on bacterial communities in a hybrid sequencing biofilm batch reactor-constructed

Xiaohui Wang, Shuai Du, Tao Ya, Zhiqiang Shen, Jing Dong, Xiaobiao Zhu

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1097-4

Abstract:

SBBR-CW system was proposed to effectively treat wastewater containing TCBPA.

CW unit contributed more than SBBR to the removal of TCBPA.

TCBPA changed the composition and structure of bacterial community in the system.

GAOs massively grew in SBBR, but did not deteriorate TP removal efficiency.

Keywords： SBBR     Constructed wetland     Tetrachlorobisphenol A     Microbial community structure    

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Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 241-247 doi: 10.1007/s11783-009-0023-6

Abstract: emissions, together with the relationships between N O and water quality parameters in free water surface constructed

Keywords： free water surface constructed wetland     nitrous oxide emission     water quality parameter     principal component    

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Study on Intensifying Measures of Constructed Wetlands

Yan Lu,Wang Shihe,Zhong Qiushuang,Huang Juan

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 88-90

Abstract:

The constructed wetland is an ecological sewage treatment with good purification However,  the oxygen condition in constructed wetlands is of particularity and affects purification The results of research demonstrate that circumfluence makes purifying effect of constructed wetlands

Keywords： constructed wetlands     in series     aerify     multi-inflow     circumfluence    

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Title Author Date Type Operation

Removal of arsenic by pilot-scale vertical flow constructed wetland

Journal Article

Effect of wetland plant fermentation broth on nitrogen removal and bioenergy generation in constructed

Journal Article

Restoration of hyper-eutrophic water with a modularized and air adjustable constructed submerged plant

Jinzhong LI, Xueju LI, Shujuan SUN, Xuegong LIU, Suiliang HUANG

Journal Article

Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable

Journal Article

Decontamination efficiency and root structure change in the plant-intercropping model in vertical-flow constructed

Yonghua CHEN, Xiaofu WU, Mingli CHEN, Kelin LI, Jing PENG, Peng ZHAN

Journal Article

Removal, distribution and plant uptake of perfluorooctane sulfonate (PFOS) in a simulated constructed

Weichuan Qiao, Rong Li, Tianhao Tang, Achuo Anitta Zuh

Journal Article

Sulfur cycle as an electron mediator between carbon and nitrate in a constructed wetland microcosm

Wenrui Guo, Yue Wen, Yi Chen, Qi Zhou

Journal Article

Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

Journal Article

Relationships between loading rates and nitrogen removal effectiveness in subsurface flow constructed

ZHANG Rongshe, LI Guanghe, ZHANG Xu, ZHOU Qi

Journal Article

REDUCTION OF NON-POINT SOURCE POLLUTION IN THE YONG’AN RIVER BY CONSTRUCTED WETLAND BASED ON 9 YEARS

Journal Article

Simultaneous enhanced ammonia and nitrate removal from secondary effluent in constructed wetlands using

Journal Article

Enhanced nitrogen removal reliability and efficiency in integrated constructed wetland microcosms using

Yue WEN, Chao XU, Gang LIU, Yi CHEN, Qi ZHOU

Journal Article

tetrachlorobisphenol A and the effects on bacterial communities in a hybrid sequencing biofilm batch reactor-constructed

Xiaohui Wang, Shuai Du, Tao Ya, Zhiqiang Shen, Jing Dong, Xiaobiao Zhu

Journal Article

Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Journal Article

Study on Intensifying Measures of Constructed Wetlands

Yan Lu,Wang Shihe,Zhong Qiushuang,Huang Juan

Journal Article