Design criteria of 10,000 m3/d SWRO desalination plant of

Tajura seawater reverse osmosis desalination plant with a capacity of 10,000 m3/d is the biggest RO plant in Libya. The plant is designed to produce high quality drinking and industrial water. The plant consists of a seawater intake, pretreatment, two stages of reverse osmosis membranes in two lines, post-treatment and product water storage tank. The plant has been working successfully with a capacity of 50% for over 18 years. Improvements of the plant will be made to work with the 100% capacity to minimize the operation cost and to eliminate the water problems of the area of Tajura. The objective of this paper is to present the design features of the RO plant and the improvements to be made. The design parameters, operational processes and operational data are described.

In order to operate the plant with 100% production capacity and to produce high quality industrial water (max. 200 mg/l TDS) necessary for Tajura Research Center and other companies, and to provide potable water to the area of Tajura, the following improvements will be made this year: • Replacement with new complete two SWRO skids with 6000 m3/d capacity. • Replacement with new complete two brackish water RO skids with 10,000 m3/d capacity. • Replacement of new control system (Simatic S7). • Refurnishment material of the pretreatment, post-treatment, and all instrumentation in the field. • Replacement of demineralization plant.