Annual operation and maintenance cost (in USD) = 697283 * + 368927, where is the design capacity in mgd [29]
= 697283 + 368927 = USD 1.06 million
Design capacity = 1 mgd
Construction cost (in USD) = 86.82 () + 3 + 06, where is membrane area in sq ft. [29]
FO membrane area required = design capacity/water flux performance
Water flux performance = 15 gfd [53]. This value is for a pilot plant developed by Yale University which used ammonia-carbon dioxide as draw solution and cellulose acetate membrane. Thus, FO membrane area required () = 106/15 = 66666.6 sq ft. Thus, construction cost = 86.82 (66666.6) + 3 + 06 = USD 8.78 million
Annual operation and maintenance cost (in USD) = 3 − 06 * + 10.631 * + 116981, where is membrane area in sq ft. [29]
