Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/73046
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dc.contributor.authorGuan, Zhihua
dc.date.accessioned2017-12-27T03:04:42Z
dc.date.available2017-12-27T03:04:42Z
dc.date.issued2017
dc.identifier.urihttp://hdl.handle.net/10356/73046
dc.description.abstractUntreated wastewater was recycled in Singapore through treatment processes in water reclamation plants and NEWater plant. These treated wastewater are then directed to industry uses and local catchment reservoirs. However, wastewater contains natural organic matter which mainly comprises of humic acid that can lead to lower system performance of the membrane technology used in NEWater plants. Thus, this study aims to investigate the efficiency of using ozone in the removal of humic acid from in aqueous solution. In this study, a hybrid oxidation reactor was first designed and ozone was bubbled into the humic acid solution through an air stone. Humic acid stock solution was prepared and 20 times dilution with deionized water was used as influent for the hybrid oxidation reactor with an initial total organic carbon of about 30 mg/L. Several experiments (ozonation of humic acid solution without buffer, ozonation of humic acid solution with buffer, ozonation of humic acid solution at low pH, ozonation of humic acid solution at high pH ) with duration of 120 mins was conducted and the samples are collected at intervals of 20 mins. Total organic carbon and colour of the samples was recorded and studied. Ozonation of humic acid has achieved a removal rate of at least 80% for colour436 and a removal rate of about 15% to 25% was achieved for total organic carbon. It was found that the concentration of ozone is the limiting agent in this study.en_US
dc.format.extent35 p.en_US
dc.language.isoenen_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Engineering::Environmental engineeringen_US
dc.titleRemoval of natural organic matter using hybrid oxidation reactoren_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.supervisorSun Delai, Darrenen_US
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.degreeBachelor of Engineering (Environmental Engineering)en_US
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Appears in Collections:CEE Student Reports (FYP/IA/PA/PI)
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