A process for recovering solid waste from produced water in an oil sands system utilizing a fluidized bed, comprising: transferring an amount of produced water into a solution tank, producing an enriched salt solution in the solution tank, transferring the enriched salt solution using at least one spray nozzle into a fluidized bed of a fluidized bed spray granulator, heating the fluidized bed with a gas, growing granules within the fluidized bed through evaporative drying of salt from the enriched salt solution, extracting the granules from the fluidized bed spray granulator to produce a granulator product, separating at least a portion of the granulator product into at least two fractions, and removing at least a portion of at least one of the at least two fractions from the system as solid waste brine product.