Techno-economic comparison of technologies for the concentration of a mixed leachant bleed stream

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Brouwer, J.P. and Alkemade, M.M.C. and Bierman, G. (1995) Techno-economic comparison of technologies for the concentration of a mixed leachant bleed stream. Desalination, 101 (3). pp. 211-218. ISSN 0011-9164

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Abstract:In a new hydrometallurgical process for recovery of lead from lead oxide secondaries, liquid effluence is minimized by jointly treating contaminated washing water and leachant bleed. To enable internal recycling of the leachant bleed and recover pure water, it is necessary to incorporate a concentration unit. In this paper different technologies for concentrating the mixed stream are compared. At a specified water recovery rate of 10 m3/h, the total costs for mechanical vapour compression evaporation, freeze concentration and multiple effect evaporation are 13, 18 and 18 U$/m3 of recovered water, respectively. The total costs decrease at increasing water recovery rates, but mechanical vapour compression evaporation remains the cheapest technology within the major part of the range studied (5¿55 m3/h water recovery). [math mode missing closing $]
Item Type:Article
Copyright:© 1995 Elsevier Science
Link to this item:http://purl.utwente.nl/publications/57317
Official URL:http://dx.doi.org/10.1016/0011-9164(95)00024-V
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