External nitrification in biological nutrient removal activated sludge systems

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dc.contributor.advisorEkama, George Aen_ZA
dc.contributor.advisorWentzel, Mark Cen_ZA
dc.contributor.authorSötemann, Svenen_ZA
dc.date.accessioned2014-07-31T10:25:54Z
dc.date.available2014-07-31T10:25:54Z
dc.date.issued2000en_ZA
dc.descriptionSummary in English.
dc.descriptionBibliography: leaves 5.1-5.7.
dc.description.abstractBiological nutrient removal activated sludge (BNRAS) systems have become the preferred treatment system for advanced municipal wastewater treatment in South Africa. They have proven to be cost-effective systems that produce effluents of excellent quality that can be re-introduced to the receiving water bodies without a significant negative impact on the scarce surface water of South Africa. The widespread implementation of the BNRAS system has drawn attention to some of the weaknesses of the system, predominantly (i) the long sludge ages and resulting large biological reactor volumes required for nitrification, (ii) filamentous organism bulking of the sludge that develops in the system, (iii) treatment of the P rich waste sludge from the system and (iv) containment of the large mass of P in the sludge during a failure of the aeration in the system. In order to overcome the first two weaknesses of the system, it is proposed to separate the process of nitrification from the BNRAS mixed liquor and achieve nitrification externally to the BNRAS system.en_ZA
dc.identifier.apacitationSötemann, S. (2000). <i>External nitrification in biological nutrient removal activated sludge systems</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/5003en_ZA
dc.identifier.chicagocitationSötemann, Sven. <i>"External nitrification in biological nutrient removal activated sludge systems."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2000. http://hdl.handle.net/11427/5003en_ZA
dc.identifier.citationSötemann, S. 2000. External nitrification in biological nutrient removal activated sludge systems. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Sötemann, Sven AB - Biological nutrient removal activated sludge (BNRAS) systems have become the preferred treatment system for advanced municipal wastewater treatment in South Africa. They have proven to be cost-effective systems that produce effluents of excellent quality that can be re-introduced to the receiving water bodies without a significant negative impact on the scarce surface water of South Africa. The widespread implementation of the BNRAS system has drawn attention to some of the weaknesses of the system, predominantly (i) the long sludge ages and resulting large biological reactor volumes required for nitrification, (ii) filamentous organism bulking of the sludge that develops in the system, (iii) treatment of the P rich waste sludge from the system and (iv) containment of the large mass of P in the sludge during a failure of the aeration in the system. In order to overcome the first two weaknesses of the system, it is proposed to separate the process of nitrification from the BNRAS mixed liquor and achieve nitrification externally to the BNRAS system. DA - 2000 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2000 T1 - External nitrification in biological nutrient removal activated sludge systems TI - External nitrification in biological nutrient removal activated sludge systems UR - http://hdl.handle.net/11427/5003 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5003
dc.identifier.vancouvercitationSötemann S. External nitrification in biological nutrient removal activated sludge systems. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2000 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5003en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleExternal nitrification in biological nutrient removal activated sludge systemsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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