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The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process
Includes bibliography.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Civil Engineering
2014
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| _version_ | 1867614238071062528 |
|---|---|
| access_status_str | Open Access |
| author | Kaschula, Wendy A |
| author2 | Ekama, George A |
| author_browse | Ekama, George A Kaschula, Wendy A |
| author_facet | Ekama, George A Kaschula, Wendy A |
| author_sort | Kaschula, Wendy A |
| collection | Thesis |
| description | Includes bibliography. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/8454 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:48:51.803Z |
| 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:11427/8454 The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process Kaschula, Wendy A Ekama, George A Civil Engineering Includes bibliography. Phosphate is an essential nutrient for photosynthetic plant growth. However if over-supplied in a water body, it leads to excessive algal growth, a condition is termed eutrophication. Eutrophication is not only unsightly, but renders the water less usable. Most of the highly eutrophied water bodies with a high phosphorus load still receive up to 90 of their phosphorus input from effluents discharged by sewage treatment works (Pretorius, 1983). The phosphorus content of domestic sewage originates from two main sources, namely human waste {±60) and detergents {±40) (Heynike and Wiechers, 1986). There is an argument for a ban on phosphate in detergents to reduce the phosphate load on sewage treatment plants and thereby limit phosphate discharges via treated municipal effluent. The removal of phosphate from detergent formulations has been an effective way in many countries of reducing the phosphorous load to receiving waters. In South Africa, detergent manufacturers are anticipating consumer pressure to reformulate their detergent products to eliminate phosphate. The two possible replacements for phosphates are zeolite 4A and high surface area {HSA) calcite. High surface area (SA) calcite is not yet being used as a detergent builder, but is being seriously considered as a potential replacement for phosphate in South African detergent formulations. 2014-10-17T07:25:23Z 2014-10-17T07:25:23Z 1993 Master Thesis Masters MSc http://hdl.handle.net/11427/8454 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Kaschula, Wendy A The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| thesis_degree_str | Master's |
| title | The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| title_full | The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| title_fullStr | The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| title_full_unstemmed | The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| title_short | The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| title_sort | effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/8454 |
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