Pre-treatment optimisation of SWRO membrane desalination under tropical conditions
| Autor: | C. P. Chiew, A. Sivaraman, S. K. Lim, E. Haw, C. P. Teo, E. K. Tan, Y. H. Lau, A. N. Puah, R. J. Xie |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Desalination and Water Treatment. 3:183-192 |
| ISSN: | 1944-3986 1944-3994 |
| Popis: | Seawater quality and temperature under tropical conditions require particular attention to optimise the pre-treatment process and to minimise reverse osmosis (RO) membrane fouling in order to maximise plant performance. A skid-mounted pilot plant of 50 m3d-1 was constructed to examine the impact of various pre-treatments on RO feed quality and to optimise the operation conditions for continuous seawater RO (SWRO) membrane desalination. The pilot plant consisted of five main subsystems: (1) open seawater intake, (2) conventional pre-treatment, (3) one-stage RO membrane, (4) effluent discharge and (5) supervised control and data acquisition (SCADA). Such set-up allows pre-treatments of varying coagulants and their doses, hydraulic retention time, with and without chlorination, different filtration schemes of the dual-media filter, several methods of clean-in-place of the RO membrane and its service and flushing arrangement. The sub-systems were tested and the operation conditions optimised. The optimal oper... |
| Databáze: | OpenAIRE |
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