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Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants
Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2011.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2013
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| _version_ | 1867613528367562752 |
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| access_status_str | Open Access |
| author2 | Prof T Majozi |
| author_browse | Prof T Majozi |
| author_facet | Prof T Majozi |
| collection | Thesis |
| dc_rights_str_mv | © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2011. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/30972 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:34.848Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/30972 Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants Prof T Majozi bola@tuks.co.za Adekola, Omobolanle UCTD Regeneration Multiple contaminants Wastewater minimization Dissertation (MEng (Chemical Engineering))--University of Pretoria, 2011. The generation of wastewater in processing industries is an inevitable activity since almost all operations require water at some point. Process equipment cleaning is a universal wastewater generating operation as it is practiced in all segments of manufacturing industries. This is especially important in batch plants due to inherent sharing of equipment by different tasks. Wastewater minimization can be achieved by employing water reuse opportunities. In the past, an optimal batch schedule was assumed before the minimization of wastewater, which was an oversimplification of the problem. This is because the batch schedule impacts on the starting and finishing times of water-using operations, hence any wastewater target obtained is specific to the schedule given. This dissertation presents a methodology to address the problem of wastewater minimization by extending the concept of water reuse to include a wastewater regenerator. The regenerator purifies wastewater to such a quality that it can be reused in other operations. This further increases water reuse opportunities in the plant, thereby significantly reducing freshwater demand and effluent generation. The mathematical model presented determines the optimum batch production schedule that achieves the minimum wastewater generation within the same framework. The effectiveness of the method was demonstrated in its application to two case studies involving multiple contaminants and wastewater reductions of 19.2% and 26% were achieved. Chemical Engineering MEng (Chemical Engineering) restricted 2013-09-09T07:54:09Z 2011-09-21 2013-09-09T07:54:09Z 2011-09-05 2011-09-21 2011-07-06 Dissertation Adekola, O 2011, Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd-07062011-144506/ > C11/9/138/ag http://hdl.handle.net/2263/30972 http://upetd.up.ac.za/thesis/available/etd-07062011-144506/ en © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Regeneration Multiple contaminants Wastewater minimization Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title | Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title_full | Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title_fullStr | Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title_full_unstemmed | Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title_short | Wastewater minimization in multipurpose batch plants with a regeneration unit : multiple contaminants |
| title_sort | wastewater minimization in multipurpose batch plants with a regeneration unit multiple contaminants |
| topic | UCTD Regeneration Multiple contaminants Wastewater minimization |
| url | http://hdl.handle.net/2263/30972 http://upetd.up.ac.za/thesis/available/etd-07062011-144506/ |