Brine Discharges from Barka Plants, Oman: A CORMIX Case Study
Barka has been designated as the location for the construction of up to tour power generation and seawater desalination plants. Barka Ⅰ (MSF) plant with a capacity of 91000 m3/d was commissioned in 2003, and Barka Ⅱ (RO) plant with a capacity of 120000 m3/d was recently commissioned in 2009. Both plants use and share the same seawater intake and marine ouffall systems. The cooling water from the power generation plants are mixed with reject brine (and other effluents) from desalination plants and are discharged through four parallel outfall pipelines of a length 582 m, with nine diffusers installed to each pipe end. Barka Ⅰ plant discharges up to a maximum flow rate of 61500 m3/h, and Barka Ⅱ plant discharges up to a maximum flow rate of 60600 m3/h. The Comell Mixing Zone Modeling System (CORMIX) is the US-EPA supported software system for the analysis, prediction, and design of outfall mixing zones resulting from effluent discharges into water bodies. CORMIX employs a rule-based expert system to screen input data and select a hydrodynamic model to simulate the physical mixing processes. Extensive comparison with field and laboratory data has shown that the CORMIX predictions are reliable for a majority of cases, and CORMIX is recognized by regulatory authorities for environmental impact assessment. In order to meet the regulations for discharging effluents in the Omani marine environment, CORMIX (v6.0) simulations are carried out for two brine discharge scenarios. Scenario I is used to represent a positively buoyant plume discharges from Barka Ⅰ plant, and scenario Ⅱ is used to represent a negatively buoyant plume discharges from BarkaⅠ+Ⅱplant. The results show that the required water quality standard has been met for both scenarios within the regulatorv mixing zone at a 150 m radius from the discharge point.
Barka brine discharges CORMIX desalination plant marine outfall Oman
H.H. Al-Barwani A. Purnama T. Bleninger R.L. Doneker
Department of Mathematics and Statistics, College of Science Sultan Qaboos University, PO Box 36, A1 Institute for Hydromechanics Karlsruhe Institute of Technology, Kaiserstr. 12, 76131, Karlsruhe, Ger Department of Civil and Environmental Engineering, Portland State University, Portland, Oregon 97201
国际会议
2010 Asia-Pacific Conference on Desalination and Water Reclamation(2010 亚太脱盐大会)
青岛
英文
299-309
2010-06-22（万方平台首次上网日期，不代表论文的发表时间）