A Study on Scale Determination of FO-RO Hybrid Process Based on FO Recovery Rate

ABSTRACT Kim, G.-Y.; Jeong, J.-W.; Kim, M.-G.; Kim, H.-S.; Kim, J.-H., and Kim, H.-S., 2017. A study on scale determination of FO-RO hybrid process based on FO recovery rate. In: Lee, J.L.; Griffiths, T.; Lotan, A.; Suh, K.-S., and Lee, J. (eds.), The 2nd International Water Safety Symposium. Journal of Coastal Research, Special Issue No. 79, pp. 75–79. Coconut Creek (Florida), ISSN 0749-0208. Recent studies have been actively conducted on forward osmosis-reverse osmosis hybrid process combining seawater desalination and wastewater reuse technology. It uses seawater as draw solution and reclaimed wastewater as feed solution in the FO process. Although it is possible to save operating costs in forward osmosis-reverse osmosis hybrid process, organic matter contained in treated water of forward osmosis may have a negative effect on the coastal environment. Therefore, studies are needed to evaluate the removal efficiency of organic matter in forward osmosis process and to enable the commercialization of forwa...