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A laboratory study on the anaerobic digestion of yeast waste
This thesis reports the establishment of a new type of internally clarified digester as a means of treating a strong industrial waste. Factors pertaining to both the system and the waste itself were investigated. A batch system was used to determine the susceptibility of the waste chosen, viz. that...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2016
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| _version_ | 1867613168940875776 |
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| access_status_str | Open Access |
| author | Richter, Harold Ian Henry |
| author2 | Hansford, Geoffrey Spearing |
| author_browse | Hansford, Geoffrey Spearing Richter, Harold Ian Henry |
| author_facet | Hansford, Geoffrey Spearing Richter, Harold Ian Henry |
| author_sort | Richter, Harold Ian Henry |
| collection | Thesis |
| description | This thesis reports the establishment of a new type of internally clarified digester as a means of treating a strong industrial waste. Factors pertaining to both the system and the waste itself were investigated. A batch system was used to determine the susceptibility of the waste chosen, viz. that from the first separator of a local yeast factory, to anaerobic digestion. The reactor-clarifiers were constructed and operated at a wide range of loadings. A constant hydraulic retention time was maintained for each of the digesters and sufficient sludge withdrawn daily to maintain a constant sludge concentration over the range of loadings used. The ability of each of the parameters used to monitor digestion, to predict periods of digester imbalance was investigated. A mathematical model was derived to describe the process and the kinetic parameters related to the anaerobic digestion of yeast waste evaluated. Possible inhibitory substances present in the waste and/or generated during digestion and their influence on the system were investigated. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17708 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:52.071Z |
| 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:11427/17708 A laboratory study on the anaerobic digestion of yeast waste Richter, Harold Ian Henry Hansford, Geoffrey Spearing Chemical Engineering This thesis reports the establishment of a new type of internally clarified digester as a means of treating a strong industrial waste. Factors pertaining to both the system and the waste itself were investigated. A batch system was used to determine the susceptibility of the waste chosen, viz. that from the first separator of a local yeast factory, to anaerobic digestion. The reactor-clarifiers were constructed and operated at a wide range of loadings. A constant hydraulic retention time was maintained for each of the digesters and sufficient sludge withdrawn daily to maintain a constant sludge concentration over the range of loadings used. The ability of each of the parameters used to monitor digestion, to predict periods of digester imbalance was investigated. A mathematical model was derived to describe the process and the kinetic parameters related to the anaerobic digestion of yeast waste evaluated. Possible inhibitory substances present in the waste and/or generated during digestion and their influence on the system were investigated. 2016-03-14T07:16:30Z 2016-03-14T07:16:30Z 1973 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17708 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Richter, Harold Ian Henry A laboratory study on the anaerobic digestion of yeast waste |
| thesis_degree_str | Master's |
| title | A laboratory study on the anaerobic digestion of yeast waste |
| title_full | A laboratory study on the anaerobic digestion of yeast waste |
| title_fullStr | A laboratory study on the anaerobic digestion of yeast waste |
| title_full_unstemmed | A laboratory study on the anaerobic digestion of yeast waste |
| title_short | A laboratory study on the anaerobic digestion of yeast waste |
| title_sort | laboratory study on the anaerobic digestion of yeast waste |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/17708 |
| work_keys_str_mv | AT richterharoldianhenry alaboratorystudyontheanaerobicdigestionofyeastwaste AT richterharoldianhenry laboratorystudyontheanaerobicdigestionofyeastwaste |