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dc.contributor.authorSalwa, Mohd Zaini Makhtar-
dc.contributor.authorNaimah, Ibrahim-
dc.contributor.authorMohammad Tamizi, Selimin-
dc.date.accessioned2011-01-18T04:09:41Z-
dc.date.available2011-01-18T04:09:41Z-
dc.date.issued2009-06-02-
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/10493-
dc.description2nd International Conference and Workshops on Basic and Applied Sciences and Regional Annual Fundamental Science Seminar 2009 (ICORAFSS 2009) organized by Universiti Teknologi Malaysia, from 2nd - 4th June 2009 at Johor Bahru, Johor, Malaysia.en_US
dc.description.abstractLeachate are heavily polluted liquid which may contain large amount of chemical oxygen demand (COD), biological chemical demand (BOD), ammonia (NH3) and colour. This study was conducted to examine the percentage of COD removal using coagulation as pretreatment, followed by the effects of ZnO, pH, stirring time and solar photocatalytic as final treatment. The duration of photocatalytic reaction occurs after 30 minutes of exposure to sunlight at solar intensity of 0.13 - 0.89 kW/m2 that is from 11-1 p.m. The study showed that, pretreatment of leachate by coagulation at no pH adjustment, at its natural pH 8.68 with addition 10 g/L FeCl3 as coagulant can remove 55.8% COD. But, 34% COD removal can be obtained by coagulation at pH 5 with addition 1 g/L FeCl3. Using 1.0 g/L ZnO at pH 5 capable of removing 61 % COD after 120 minutes of exposure.en_US
dc.language.isoenen_US
dc.publisherUniversiti Teknologi Malaysia (UTM)en_US
dc.relation.ispartofseriesProceeding of the 2nd International Conference and Workshops on Basic and Applied Sciences and Regional Annual Fundamental Science Seminar 2009 (ICORAFSS 2009)en_US
dc.subjectLandfillen_US
dc.subjectLeachateen_US
dc.subjectZnOen_US
dc.subjectCoagulationen_US
dc.subjectChemical oxygen demand (COD)en_US
dc.titleCOD removal from semi-aerobic landfill leachateen_US
dc.typeWorking Paperen_US
dc.contributor.urlsalwa@unimap.edu.myen_US
Appears in Collections:Conference Papers
Mr Mohammad Tamizi Selimin

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