Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
External nitrification in biological nutrient removal activated sludge systems
Summary in English.
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Civil Engineering
2014
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613269022212096 |
|---|---|
| access_status_str | Open Access |
| author | Sötemann, Sven |
| author2 | Ekama, George A |
| author_browse | Ekama, George A Sötemann, Sven |
| author_facet | Ekama, George A Sötemann, Sven |
| author_sort | Sötemann, Sven |
| collection | Thesis |
| description | Summary in English. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/5003 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:26.520Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/5003 External nitrification in biological nutrient removal activated sludge systems Sötemann, Sven Ekama, George A Wentzel, Mark C Civil Engineering Summary in English. Bibliography: leaves 5.1-5.7. 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. 2014-07-31T10:25:54Z 2014-07-31T10:25:54Z 2000 Master Thesis Masters MSc http://hdl.handle.net/11427/5003 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Sötemann, Sven External nitrification in biological nutrient removal activated sludge systems |
| thesis_degree_str | Master's |
| title | External nitrification in biological nutrient removal activated sludge systems |
| title_full | External nitrification in biological nutrient removal activated sludge systems |
| title_fullStr | External nitrification in biological nutrient removal activated sludge systems |
| title_full_unstemmed | External nitrification in biological nutrient removal activated sludge systems |
| title_short | External nitrification in biological nutrient removal activated sludge systems |
| title_sort | external nitrification in biological nutrient removal activated sludge systems |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/5003 |
| work_keys_str_mv | AT sotemannsven externalnitrificationinbiologicalnutrientremovalactivatedsludgesystems |