Studies on sustainability of simulated constructed wetland system for treatment of urban waste: Design and operation

Journal of Environmental Management
A K UpadhyayU N Rai

Abstract

New system configurations and wide range of treatability make constructed wetland (CW) as an eco-sustainable on-site approach of waste management. Keeping this view into consideration, a novel configured three-stage simulated CW was designed to study its performance efficiency and relative importance of plants and substrate in purification processes. Two species of submerged plant i.e., Potamogeton crispus and Hydrilla verticillata were selected for this study. After 6 months of establishment, operation and maintenance of simulated wetland, enhanced reduction in physicochemical parameters was observed, which was maximum in the planted CW. The percentage removal (%) of the pollutants in three-stage mesocosms was; conductivity (60.42%), TDS (67.27%), TSS (86.10%), BOD (87.81%), NO3-N (81.28%) and PO4-P (83.54%) at 72 h of retention time. Submerged macrophyte used in simulated wetlands showed a significant time dependent accumulation of toxic metals (p ≤ 0.05). P. crispus accumulated the highest Mn (86.36 μg g(-1) dw) in its tissue followed by Cr (54.16 μg g(-1) dw), Pb (31.56 μg g(-1) dw), Zn (28.06 μg g(-1) dw) and Cu (25.76 μg g(-1) dw), respectively. In the case of H. verticillata, it was Zn (45.29), Mn (42.64), Pb (22.62), Cu...Continue Reading

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Citations

Oct 26, 2018·Environmental Technology·Amtul Bari TabindaAdeel Mahmood
Feb 6, 2017·Environmental Science and Pollution Research International·Hafiz Faiq BakhatMuhammad Shahid
Sep 16, 2020·Bulletin of Environmental Contamination and Toxicology·Atul Kumar UpadhyayGauri Saxena
Dec 12, 2018·Environmental Geochemistry and Health·Nasim SaharimoghaddamMansour Ghaderpoori
Jan 11, 2017·Environmental Science and Pollution Research International·Wenjuan HanYing Ge

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