University of Khartoum

Assessment of Desalination of saline water by reverse osmosis in Tasneem and Almwaney stations in Port Sudan

Assessment of Desalination of saline water by reverse osmosis in Tasneem and Almwaney stations in Port Sudan

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Title: Assessment of Desalination of saline water by reverse osmosis in Tasneem and Almwaney stations in Port Sudan
Author: Abbas, Reem Mubarak Imam
Abstract: The study aimed to assess the desalination of saline water by reverse osmosis in Tasneem and Almowaney stations in Portsudan town. Water samples were collected from the study plants before and after treatment and parameters such as pH, hardness, total dissolved solids, electrical conductivity, chlorine, fluorides, iron, ammonia concentration were measured by standard methods. Results showed that in tasneem station, which uses well water, the method adopted for desalination is reverse osmosis. This method desalinates water very well. Desalination by this method is satisfactory and that water from this plant is slightly saline which increases the life time of the membrane and consequently reduces the cost. It was found that the efficiency of the plant (57%) was within the recommended limits (50-85%). The values recorded for the measured water parameters were pH, 6.9; Hardness, 60; TDS, 100mg/l; Ec, 200; Chlorine, 0.2mg/l; Fluorides, 0.53mg/l, traces of Iron and 0.02mg/l of Ammonia. In Almowney station which uses sea water, the method adopted for desalination of water is also reverse osmosis. It was found that the salinity of water is so high, that it decreases the life time of membranes and hence increases the cost. It was found that the efficiency of the plant is (24%) which is not within the limit (50-85%). The values recorded for the measured water parameters were pH, 6.9; traces of Hardness; TDS, 234mg/l; Ec, 468; Chlorine, 0.1mg/l; Fluorides, 0.77mg/l; traces of Iron and 0.03mg/l of Ammonia. The study recommends that when desalinating water it is probable to use reverse osmosis to desalinate sea water and ground water very well. Also use good type of membranes in order not to change them regularly thus reducing the cost. In any plant one should take into account the recovery so that it should be within the recommended limit (50-85%) in order to ensure the quality of the work of the plants for many years
URI: http://khartoumspace.uofk.edu/123456789/25540


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