Abstract: The present invention comprises numerous methods and means for safe, effective and economical desalination of oily brine and brackish production water. Associated methods of operations and proposed systems and subsystems are also disclosed. The system also admits to waste heat recovery from internal combustion engine exhaust and jacket cooling water, utilizing the heat energy of a fuel feed to maximize system efficiency. The system and method are useful for desalinating not only oily brine water, but also brackish water, sea water, and waste treatment plant water, and could also be applied to other sources of waste heat and other low grade heats such as gas turbine exhaust systems, biomass, and energy from waste, etc.