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Application of biological activated carbon (BAC) in drinking water treatment

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dc.contributor Ph.D. Program in Environmental Technology.
dc.contributor.advisor Çeçen, Ferhan.
dc.contributor.author Yapsaklı, Kozet.
dc.date.accessioned 2023-03-16T13:43:05Z
dc.date.available 2023-03-16T13:43:05Z
dc.date.issued 2008.
dc.identifier.other ESC 2008 Y37 PhD
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/19489
dc.description.abstract Biological filtration represents an important process step for the production of high quality drinking water. Bacteria attached to the filter media as biofilm use biodegradable organic matter (BOM) present in the filter influent as a source of carbon and energy. The decrease of BOM levels through biofiltration is important with respect to the prevention of bacterial growth and related problems in the distribution system. The research presented in this thesis examined the applicability of biological activated carbon filtration using the water from the Ömerli Reservoir. The experimental results showed that, the choice of filter material is crucial in BAC systems. The ability of GAC to better adsorb and retain organic compounds increases their chance of being biodegraded by bacteria. Biological activity extended the service life of GAC columns. Thermally activated carbons adsorbed NOM better than chemically activated carbon. Likewise, this better adsorption resulted in higher biodegradation. DOC biodegradation was high and was related to the low specific ultraviolet absorption (SUVA) values in raw water. In the case of low SUVA values, ozonation may not be necessary to increase biodegradability of water. High nitrification efficiencies were observed in BAC columns filled with chemically and steam activated carbons. In-situ and membrane hybridization results indicated that Nitrosomonas species were the dominant ammonia oxidizing bacteria and Nitrospira-related species were the prevailing nitrite oxidizing bacteria. The results suggest that the real-time PCR analysis, the amoA/16S rRNA ratio, is an alternative method to understand nitrifying bacterial population and activity in BAC columns.|Keywords: Biological Activated Carbon (BAC), Granular Activated Carbon (GAC), Ozonation, Biodegradation, Drinking Water
dc.format.extent 30cm.
dc.publisher Thesis (Ph.D.)-Bogazici University. Institute of Environmental Sciences, 2008.
dc.relation Includes appendices.
dc.relation Includes appendices.
dc.subject.lcsh Carbon, Activated.
dc.subject.lcsh Sewage -- Purification -- Biological treatment.
dc.subject.lcsh Water -- Purification -- Adsorption.
dc.subject.lcsh Drinking water.
dc.subject.lcsh Ozonization.
dc.subject.lcsh Biodegradation.
dc.title Application of biological activated carbon (BAC) in drinking water treatment
dc.format.pages xxi, 247 leaves;


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