This chapter discusses the post-treatment of desalinated water using conventional as well as recent technologies for remineralization of permeate produced by desalination systems. Desalted water produced by desalination facilities are unpleasant, unhealthy, and they are corrosive, cannot be utilised directly. Because of the requirement for high-quality water, remineralization of desalinated water as part of the post-treatment process has gotten a lot of attention recently. It gives insights on examining remineralization requirements and restrictions in terms of corrosion control, human health, and agricultural needs. The chapter also provides an summary of alternative disinfection systems and guidance for their use in desalination applications. © 2022 John Wiley & Sons, Inc.