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Translocation and biotoxicity of metal (oxide) nanoparticles in the wetland-plant system

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1432-4

Abstract:

• Aquatic plants are more likely to absorb TiO2 NPs that

Keywords： Constructed wetlands     Aquatic plants     Nanoparticles     Physiological activity     Biomass    

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

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 perfluorooctaneplant uptake; moreover, the percentage of soil adsorption was 61%–89%, and was higher than that of the plants0.04 and 0.58, respectively, indicating that PFOS is not easily translocated to leaves from roots of wetlandplants; moreover, uptake of PFOS by E. crassipes was more than that of C. alternifolius because the

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

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Effect of wetland plant fermentation broth on nitrogen removal and bioenergy generation in constructedwetland-microbial fuel cells

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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Evaluating and structuring indicators for wetland assessment

Xuehua LIU, Yan SUN,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 221-227 doi: 10.1007/s11783-010-0029-0

Abstract: Wetland assessment has been a popular field of research worldwide.However, various indicators have been used in wetland assessment for different purposes and backgroundsAfter an extensive review of wetland assessment literatures, the reported indicators were evaluated usingto choose indicators for wetland assessment under different conditions.The proposed approach can be used to guide the process of wetland assessments in the future.

Keywords： wetland assessment     indicators     Analytical Hierarchy Process (AHP)     comparison    

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Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 597-603 doi: 10.1007/s11783-011-0311-9

Abstract: Distinct from the case with width-dominated shallow wetland flows, the longitudinal evolution of contaminantconcentration in the most-typical pattern of wetland as dominated by free-water-surface-effect is characterized

Keywords： free-surface wetland     environmental dispersion     multi-scale analysis    

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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 wasThe results indicated that pH and dissolved oxygen (DO) were increased in the wetland due to the algalconcentration was observed in the aeration pond due to the resuspension of solids, decreased in the wetlandThe total phosphorus (TP) and phosphate had respective reductions of 52.3% and 58.2% over the wetlandThese positive removal efficiencies were mainly due to microbial activities, uptake by plants, and chemical

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

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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:

The agricultural and livestock activities surrounding the rivers flowing into the lakes have caused non-point source pollution, leading to excessive amounts of nutrient salts in downstream rivers. Introducing river water into constructed wetlands along river course has proven to be an effective solution for decreasing nitrogen (N) and phosphorus (P) loads. This paper reports 9 years of monitoring the Yong’an River and its surrounding constructed wetlands in the upper reaches of Erhai Lake, located in Yunnan Province, China. This study analyzed the main types of pollutants in the river, and evaluated the removal efficiency of pollutants by the constructed wetlands. The findings indicate that total nitrogen (TN) and nitrate nitrogen (NO3–-N) are the primary pollutants in the Yong’an River, which exhibit variation throughout the year corresponding to the alternating wet and dry seasons. Although constructed wetlands are effective in removing NO3–-N and P, their efficacy in removing ammonium nitrogen (NH4+-N) and organic pollutants is limited. This limitation can be attributed to the lack of timely disposal of aquatic plant residues. This research contributes to the understanding of the potential issues that may arise during the extended use of constructed wetlands and provides solutions to address them.

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

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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: The purpose of this study is to reduce the seasonal fluctuation and enhance the efficiency of nitrogen removal in vertical flow-horizontal subsurface flow (VF-HSF) constructed wetlands. Two sets of VF-HSF constructed wetlands were built, VF1-HSF1 and VF2-HSF2, and a zeolite section was placed in VF2. The results showed that VF2-HSF2 compared to VF1-HSF1 was not only a more reliable nitrogen removal method, but also enhanced the nitrogen removal efficiency by 50%. The average apparent rate of nitrogen removal in VF2-HSF2 reached to 2.52 gN·m ·d , which doubled the rate in VF1-HSF1. Plant uptake and organic nitrogen sediment accounted for 12% and 6% of the total nitrogen removal in VF1-HSF1, respectively, and 10% and 4% in VF2-HSF2, respectively. Biologic nitrogen removal was the dominant mechanism, which accounted for 79% and 87% of the total nitrogen removal in VF1-HSF1 and VF2-HSF2, respectively. Ammonia adsorbed by zeolite during the cold seasons was desorbed, and then nitrified in warm seasons, which resulted in a bioregeneration efficiency of 91%. Zeolite in VF was capable of transferring ammonia from cold seasons to warm seasons as well as enhancing nitrification, which was accompanied by high potential denitrification in HSF that reinforced the efficiency and relieved seasonal fluctuation of nitrogen removal in VF-HSF.

Keywords： constructed wetland     zeolite     bioregeneration     nitrogen removal    

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EMERGY analysis for sustainability evaluation of the Baiyangdian wetland ecosystem in China

Weiqing MENG, Cui HAO, Hongyuan LI, Meiting JU,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 203-212 doi: 10.1007/s11783-010-0015-6

Abstract: This study presents a quantitative and ecological benefit evaluation of the Baiyangdian wetland in ChinaMethods of EMERGY analysis were applied to illustrate the wetland ecosystem, to evaluate the economicand environmental inputs and consequent yields, and to assess the sustainability of the Baiyangdian wetland

Keywords： EMERGY analysis     sustainability     wetland ecosystem     indicators    

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Cadmium tolerance and accumulation in fifteen wetland plant species from cadmium-polluted water in constructed

Jianguo LIU,Wen ZHANG,Peng QU,Mingxin WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 262-269 doi: 10.1007/s11783-014-0746-x

Abstract: Variations in cadmium (Cd) tolerances and accumulations among fifteen wetland plant species in moderatelyfrom the wastewaters were more than 90%, and 23.5% and 16.8% of the Cd in the water accumulated in wetlandplants for 0.5 and 1.0 mg·L Cd treatments, respectively.Four wetland plant species were selected for the treatment of Cd-polluted wastewater for their high CdCd concentration in the plants may be the second consideration.

Keywords： cadmium (Cd)     wastewater treatment     wetland plant     selection     index    

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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 transfer

Keywords： Constructed wetland     Sulfur cycle     Electron transfer     Denitrification    

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FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 63-74 doi: 10.15302/J-FASE-2021427

Abstract: high-quality agricultural products and more countries have adopted landscape management by sowing flowering plantsHowever, there has been less concern over the interactions and trade-offs between floral plants and entomophagouspreference of different guilds of natural enemies are reviewed to guide the selection of flowering plants

Keywords： ecosystem services / flowering plants / natural enemies / nectar / pollen    

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Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1351-9

Abstract: Abstract • Smart wetland was designed to treat wastewater according to zero waste principle. • The systemdemonstrates the synergistic action of using a sedimentation unit together with Cyperus papyrus (L.) wetland

Keywords： Wastewater     dynamic roughing filter     Cyperus papyrus (L.)     zeolite     zero waste    

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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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Gene-editing in plants no longer requires tissue culture

Yi ZHANG, Michael PALMGREN

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2,   Pages 229-230 doi: 10.15302/J-FASE-2020330

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Title Author Date Type Operation

Translocation and biotoxicity of metal (oxide) nanoparticles in the wetland-plant system

Journal Article

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

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

Journal Article

Effect of wetland plant fermentation broth on nitrogen removal and bioenergy generation in constructedwetland-microbial fuel cells

Journal Article

Evaluating and structuring indicators for wetland assessment

Xuehua LIU, Yan SUN,

Journal Article

Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Journal Article

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

Jianghua YU, Kisoo PARK, Youngchul KIM

Journal Article

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

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

EMERGY analysis for sustainability evaluation of the Baiyangdian wetland ecosystem in China

Weiqing MENG, Cui HAO, Hongyuan LI, Meiting JU,

Journal Article

Cadmium tolerance and accumulation in fifteen wetland plant species from cadmium-polluted water in constructed

Jianguo LIU,Wen ZHANG,Peng QU,Mingxin WANG

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

FLOWERING PLANTS AND ENTOMOPHAGOUS ARTHROPODS IN THE AGRICULTURAL LANDSCAPE: A PRACTISE-ORIENTED SUMMARY

Journal Article

Treating wastewater under zero waste principle using wetland mesocosms

Safaa M. Ezzat, Mohammed T. Mohammed T.

Journal Article

Removal of arsenic by pilot-scale vertical flow constructed wetland

Journal Article

Gene-editing in plants no longer requires tissue culture

Yi ZHANG, Michael PALMGREN

Journal Article