Abstract: This invention provides a process for enhancing the generation of hydroxyl radicals in aqueous mixtures containing hydrogen peroxide, which process comprises supplying oxygen and magnesium oxide to the mixture and irradiating it with UV light. The process can be used, for example, for processing ballast water, industrial waste waters, and municipal waste waters.

Abstract: An apparatus and method for controllable separation of a purified fluid from a process water-based fluid containing at least one contaminating component are described. The apparatus comprises a housing having an inlet port for receiving the process water-based fluid through a controllable inlet valve, an outlet port for discharge of the purified fluid and a sludge port for discharge of a sludge fluid. The apparatus also includes an acoustic vibrator configured for generating a controllable acoustic wave having at least one adjustable parameter selected from frequency, amplitude and intensity. This acoustic vibrator creates at least one layer in the process water-based fluid dividing the process water-based fluid into a pre-filtered fluid and a sludge fluid. This layer is substantially perpendicular to a flow direction of said process water-based fluid.

Abstract: This invention provides a process for enhancing the generation of hydroxyl radicals in aqueous mixtures containing hydrogen peroxide, which process comprises supplying oxygen and magnesium oxide to the mixture and irradiating it with UV light. The process can be used, for example, for processing ballast water, industrial waste waters, and municipal waste waters.