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Article: Decontamination of landfill leachate by soil infiltration.

TitleDecontamination of landfill leachate by soil infiltration.
Authors
Issue Date1989
PublisherZhongguo Yufang Yixue Kexueyuan. The Journal's web site is located at Biomedical and Environmental Sciences
Citation
Biomedical And Environmental Sciences : Bes, 1989, v. 2 n. 4, p. 341-357 How to Cite?
AbstractA soil column study was conducted to evaluate the efficiency of soil to attenuate pollutants in landfill leachate. It was found that more than 60% of the initial alkalinity, COD, and total nitrogen was removed after the leachate had percolated through the soil column. Lower efficiencies were observed for the removal of dissolved cations, ammonia nitrogen, and nitrate nitrogen. When previously percolated leachate was recirculated through the soil column, significant removal (93.6%) of ammonia nitrogen was achieved. Moreover, a further reduction in COD, total nitrogen, nitrate nitrogen, and potassium was evident. Bioassay tests of seed germination and root growth of Brassica chinensis were performed to compare the phytotoxicities of untreated, percolated, and recirculated leachates. The phytotoxicity was reduced by both treatments, with the greatest detoxification observed in the leachate recirculation treatment. The values of pH and Olsen phosphorus were significantly reduced (P less than 0.01) in the treated column soil, whereas significant increases (P less than 0.05) in electrical conductivity (EC), various forms of nitrogen, exchangeable sodium percentage (ESP), potassium, magnesium, zinc, and iron were observed. EC, ESP, potassium, magnesium, sodium, iron, and various forms of nitrogen accumulated at the soil surface (10 cm). On the other hand, manganese was deposited at 20 to 50 cm below the soil surface of the treated column.
Persistent Identifierhttp://hdl.handle.net/10722/178474
ISSN
2015 Impact Factor: 1.906
2015 SCImago Journal Rankings: 0.603

 

DC FieldValueLanguage
dc.contributor.authorWong, MHen_US
dc.contributor.authorLeung, KCen_US
dc.date.accessioned2012-12-19T09:47:54Z-
dc.date.available2012-12-19T09:47:54Z-
dc.date.issued1989en_US
dc.identifier.citationBiomedical And Environmental Sciences : Bes, 1989, v. 2 n. 4, p. 341-357en_US
dc.identifier.issn0895-3988en_US
dc.identifier.urihttp://hdl.handle.net/10722/178474-
dc.description.abstractA soil column study was conducted to evaluate the efficiency of soil to attenuate pollutants in landfill leachate. It was found that more than 60% of the initial alkalinity, COD, and total nitrogen was removed after the leachate had percolated through the soil column. Lower efficiencies were observed for the removal of dissolved cations, ammonia nitrogen, and nitrate nitrogen. When previously percolated leachate was recirculated through the soil column, significant removal (93.6%) of ammonia nitrogen was achieved. Moreover, a further reduction in COD, total nitrogen, nitrate nitrogen, and potassium was evident. Bioassay tests of seed germination and root growth of Brassica chinensis were performed to compare the phytotoxicities of untreated, percolated, and recirculated leachates. The phytotoxicity was reduced by both treatments, with the greatest detoxification observed in the leachate recirculation treatment. The values of pH and Olsen phosphorus were significantly reduced (P less than 0.01) in the treated column soil, whereas significant increases (P less than 0.05) in electrical conductivity (EC), various forms of nitrogen, exchangeable sodium percentage (ESP), potassium, magnesium, zinc, and iron were observed. EC, ESP, potassium, magnesium, sodium, iron, and various forms of nitrogen accumulated at the soil surface (10 cm). On the other hand, manganese was deposited at 20 to 50 cm below the soil surface of the treated column.en_US
dc.languageengen_US
dc.publisherZhongguo Yufang Yixue Kexueyuan. The Journal's web site is located at Biomedical and Environmental Sciencesen_US
dc.relation.ispartofBiomedical and environmental sciences : BESen_US
dc.subject.meshBiological Assayen_US
dc.subject.meshBrassica - Drug Effectsen_US
dc.subject.meshDecontamination - Methodsen_US
dc.subject.meshElectric Conductivityen_US
dc.subject.meshHydrogen-Ion Concentrationen_US
dc.subject.meshMetals - Analysisen_US
dc.subject.meshNitrogen - Analysisen_US
dc.subject.meshRefuse Disposal - Methodsen_US
dc.subject.meshSeeds - Drug Effectsen_US
dc.subject.meshSodium - Analysisen_US
dc.subject.meshSoil - Analysisen_US
dc.subject.meshWater Pollution - Prevention & Controlen_US
dc.titleDecontamination of landfill leachate by soil infiltration.en_US
dc.typeArticleen_US
dc.identifier.emailLeung, KC: kwleung1@hku.hken_US
dc.identifier.authorityLeung, KC=rp01674en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid2604902-
dc.identifier.scopuseid_2-s2.0-0024838952en_US
dc.identifier.volume2en_US
dc.identifier.issue4en_US
dc.identifier.spage341en_US
dc.identifier.epage357en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridWong, MH=7403908633en_US
dc.identifier.scopusauthoridLeung, KC=13106059300en_US

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