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A water recycling system, utilizing floating media filtration and nanotikration @IF) was developed and implemented for the reuse of water at a soft drink factory. This factory, which produces both carbonated and noncarbonated sot? drinks, uses abundant t+eshwater in each of its production processes. As for the treatment of wastewater from the washing of bottle and cans, as well as cooling water horn the disinfection process, NF was applied as a means of removing soluble organics. The NF system (treatment capacity: 33 m3/h, water recovery of SS%), constituting the main water recovery system at this plant, was found to be economical due to the energy efficient NF supply pump operation, enabled by high water recovery and low operation pressure. This NF system is capable of COb removal exceeding 70% and an evaporation residual matter removal of roughly 40%. Employment of membrane filtration for wastewater recovery achieved a recovery of 2050 m3/d as compared to 650 m3/dprior to its use. The use of tap water has also dropped to less than two-fold, from 3600 m3/dto 1650 m3/d.This water recycling system not only achieved a savings on tap water cost, but also enabled conservation of water as a resource and a reduction in the amount of discharged wastewater, thus miniig the impact on the environment. Keywork

Use of the present water recycling system featuring NF enabled a saving in water usage and a minimization in wastewater to almost 55% of the situation prior to system installation. Not only was a saving in tap water usage achieved, but also a minimization of water resource usage and wastewater generation. The present system introduced has been in operation since 1994. Another such system, with an enhanced water recycling capability, has been used at another such factory. Further R&D is being continued on water recycling systems by the authors.