OCS 1005 Chapter : OCS 1005
15 Mar 2019
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Document Summary
Distillation: most common process, water boiled and condensed, solar distillation (same thing but the heating is from solar energy) in arid climates, expensive and sometimes harmful for the environment. Electrolysis: electrode-containing freshwater, membrane between fresh and salt water tanks. Reverse osmosis: salt water forced through membrane into fresh water. Seawater density: density is mass per unit volume and is controlled by the salinity and density. Density increases with decreasing temperature (greatest influence on density) The ocean is stratified into three density zones by temperature and salinity. Surface zone: the upper layer of the ocean, containing the least dense water. The surface zone is only about 2 percent of total ocean volume. Pycnocline: a zone in which density increased with depth, containing about. Pressure is not as effective on density as temperature and salinity. Water isn"t compressible so doesn"t have big effect on density.
