ملخص الدراسة:

The method of reverse osmosis (RO) is one of the most important methods used in the desalination of seawater, but the salty water that is produced from this method, called brine, has very large quantity and contains much higher salts ratio than that found in the sea. That brine, which is disposed directly or indirectly to the sea, has a direct impact on the sea and marine life. This research studied five options for the disposal of brine: 1) Disposal of brine to the sea, 2) Discharge of brine to wastewater plant, 3) Deep well injection, 4) Evaporation pond and 5) Land irrigation. The objective of the research is to investigate the best choice in terms of cost, environmental, political and social impacts. The new desalination plant Short-Term Low Volume (STLV)of a capacity of 6000m3/d will be used as a case study. Initially, the cost for every option was calculated separately, where it was found that the least cost is to pump the brine to the sea without affecting the seawater and marine life. To support this decision, two methods were used to reach the optimal option for the disposal of brine, that are multi-criteria analysis (MCDA) and Analytic Hierarchy Process(AHP).In MCDA the measurement includes many aspects such as economic, environmental, technical, political and social aspects, depending on a group of academics and experts in that field to fill in the questionnaire, which is a part of the analysis. As a result of that, the highest percentage among other options goes to pump the brine directly to the sea. On the other hand, the second method, which is Analytic Hierarchy Process (AHP), used the method of matrices among the different options and linked it with the standards that have been selected in the first method (MCDA).AHP method indicated that the best disposal of brine was by pumping the brine to the sea.

توثيق المرجعي (APA)