The objective of the study is to evaluate the economic, environmental and technical benefits and challenges of offshore desalination facilities by comparing one onshore facility and two offshore facility configurations. The treatment involves pretreatment by membrane filtration and desalination by reverse osmosis. Analysis of the feasibility of platform and mobile-vessel desalination treatment facilities shows that these concepts are viable at the evaluated production rates. Detailed design of the principal supporting systems such as the raw water intake, concentrate management and disposal system, and treated water transmission system depend are primarily a function of the location of the facility. Despite conservatively assuming the a location 15 miles from the shoreline, the unit cost of water from the offshore facilities is not substantially greater than a traditional onshore facility. Furthermore, locating the treatment facility away from environmentally sensitive near-shore coastal habitat greatly reduces the impact of the facility on the surrounding environment and may decrease pretreatment requirements by minimizing the effect of terrestrial and ocean floor influences on feed water quality.
Offshore - large scale ship or platform mounted desalination
2009
15 Seiten, 2 Tabellen, 29 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
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