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The removal of organic waste matter from secondary sewage effluents by chemical coagulation
The removal of organic waste matter was investigated: a) On both a maturation pond effluent and a secondary clarifier effluent, collected from the same municipal sewage-treatment plant, and b) On a maturation pond effluent collected from a different municipal sewage-treatment plant. The inorganic co...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2016
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| _version_ | 1867613754824327168 |
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| access_status_str | Open Access |
| author | Milis, Emmanuel |
| author2 | Carr, A D |
| author_browse | Carr, A D Milis, Emmanuel |
| author_facet | Carr, A D Milis, Emmanuel |
| author_sort | Milis, Emmanuel |
| collection | Thesis |
| description | The removal of organic waste matter was investigated: a) On both a maturation pond effluent and a secondary clarifier effluent, collected from the same municipal sewage-treatment plant, and b) On a maturation pond effluent collected from a different municipal sewage-treatment plant. The inorganic coagulants alum, ferric chloride and lime as well as organic polyelectrolytes were tested for their ability to remove the organic waste matter from the above effluents under various conditions of pH and coagulant concentration. The tests were on laboratory scale and were conducted under constant room temperature, mixing and stirring conditions. A standard laboratory technique was employed which approximately simulates the large scale operation. Removal was evaluated in terms of Chemical Oxygen Demand (COD) of the wastewater. It was found that, among the inorganic coagulants tested, ferric chloride was, in all cases, the most effective coagulant for COD removal. In general, the final COD achieved with ferric chloride was between 10 and 40 milligrams per litre, depending on the initial COD level of the raw effluent. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18077 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:41:10.943Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/18077 The removal of organic waste matter from secondary sewage effluents by chemical coagulation Milis, Emmanuel Carr, A D Chemical Engineering The removal of organic waste matter was investigated: a) On both a maturation pond effluent and a secondary clarifier effluent, collected from the same municipal sewage-treatment plant, and b) On a maturation pond effluent collected from a different municipal sewage-treatment plant. The inorganic coagulants alum, ferric chloride and lime as well as organic polyelectrolytes were tested for their ability to remove the organic waste matter from the above effluents under various conditions of pH and coagulant concentration. The tests were on laboratory scale and were conducted under constant room temperature, mixing and stirring conditions. A standard laboratory technique was employed which approximately simulates the large scale operation. Removal was evaluated in terms of Chemical Oxygen Demand (COD) of the wastewater. It was found that, among the inorganic coagulants tested, ferric chloride was, in all cases, the most effective coagulant for COD removal. In general, the final COD achieved with ferric chloride was between 10 and 40 milligrams per litre, depending on the initial COD level of the raw effluent. 2016-03-21T19:18:16Z 2016-03-21T19:18:16Z 1977 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/18077 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Milis, Emmanuel The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| thesis_degree_str | Master's |
| title | The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| title_full | The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| title_fullStr | The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| title_full_unstemmed | The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| title_short | The removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| title_sort | removal of organic waste matter from secondary sewage effluents by chemical coagulation |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/18077 |
| work_keys_str_mv | AT milisemmanuel theremovaloforganicwastematterfromsecondarysewageeffluentsbychemicalcoagulation AT milisemmanuel removaloforganicwastematterfromsecondarysewageeffluentsbychemicalcoagulation |