The importance of assessment tools in promoting cleaner production in the metal finishing industry |
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Authors: | Arnesh Telukdarie Chris Buckley Michael Koefoed |
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Institution: | aDepartment of Chemical Engineering, Durban Institute of Technology, Durban 4001, South Africa;bPollution Research Group, University of Kwa-Zulu Natal, Durban 4001, South Africa;cCleaner MFI Production Project, 270 Stamford Hill Road, Durban 4001, South Africa |
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Abstract: | Various cleaner production (CP) audits have been conducted in the South African metal finishing industry. These studies have been successful in effecting changes to the general status of the local metal finishing industry. In this paper, the initiatives undertaken by a Danish government sponsored project are detailed. The project included the conducting of in-plant assessments, using a tailor-made tool for CP benchmarking. Details on this tool's operations and typical results are presented. Typical assessments indicated potential water savings of 78%, with chemical savings of approximately 30%. The plant modifications undertaken in order to achieve the CP objectives, are described. The affects of these initiatives on local municipal wastewater treatment works are detailed with specific reference to significant reductions in incoming wastewater-borne heavy metals. The main challenge for companies has been data retrieval for the tool and overcoming social barriers for implementing the improvement options. Recommendations include redesigning the assessment tool. |
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Keywords: | Cleaner production Metal finishing Environmental audits South Africa |
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