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Anammox, biochar column and subsurface constructed wetland as an integrated system for treating municipal solid waste derived landfill leachate from an open dumpsite

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dc.contributor.author Joseph, S.M.R
dc.contributor.author Wijekoon, P
dc.contributor.author Dilsharan, B
dc.contributor.author Vithanage, M
dc.date.accessioned 2020-08-27T04:52:03Z
dc.date.available 2020-08-27T04:52:03Z
dc.date.issued 2020
dc.identifier.citation Joseph, S.M.R, et al.(2020)."Anammox, biochar column and subsurface constructed wetland as an integrated system for treating municipal solid waste derived landfill leachate from an open dumpsite", Environmental Research 189 (2020) 109880 en_US
dc.identifier.uri http://dr.lib.sjp.ac.lk/handle/123456789/9063
dc.description.abstract This study aims to treat nitrogen-rich landfill leachate from Karadiyana open dumpsite, Sri Lanka, through an integrated treatment train consists of an anammox process, Municipal Solid Waste derived biochar column followed by a biochar embedded subsurface constructed wetland. Characterization of leachate was done and the leachate pollution index (LPI) was estimated. Meanwhile, leachate was treated through a treatment system comprising an anammox reactor having 140 mm diameter and 250 mm height, a biochar reactor having the same dimensions with 1.3 kg of MSW biochar, and a laboratory-scale constructed wetland of 1 � 0.3 � 0.45 m. The influent and effluent quality was assessed for the samples taken in 24 h intervals. The analysis indicated that the leachate was high in COD (4000–14,000 mg/L), ammonia (760–900 mg/L), nitrate (60–126 mg/L), and phosphorus (33–66 mg/L). Ammonia and nitrite were removed 94 and 99% by anammox unit, respectively. Nitrate, phosphate, COD and conductivity were significantly removed by the constructed wetland system in 78, 70, 65 and 61%, respectively, whereas biochar barricades extended support for removal of the contaminants and color. The combined treatment system demonstrated treatment efficiencies as 100% of ammonia, 98.7% of nitrite, 98.2% of nitrate, 80.9% of phosphate, 79.7% of COD, and 69.9% of conductivity. Thus, it can be concluded that the anammox, combined with biochar embedded treatment train is promising to treat landfill leachate, having a high pollutant index. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Anammox Constructed wetland Municipal solid waste Green technology Biochar en_US
dc.title Anammox, biochar column and subsurface constructed wetland as an integrated system for treating municipal solid waste derived landfill leachate from an open dumpsite en_US
dc.type Article en_US
dc.identifier.doi 10.1016/j.envres.2020.109880 en_US


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