- Available Technology
Reverse osmosis; water purification
Germicidal ultraviolet radiation is an effective, broad spectrum biocide. By controlling the x-ray dose rate, the biocidal action of the system may be tuned to meet changing conditions. The phosphors in this technology are designed to emit ultraviolet radiation when stimulated by hard x-rays within a certain range. When an external x-ray source is applied, they penetrate the module and are absorbed by the phosphors, producing ultraviolet radiation and eliminating bacteria within the system. This is the first method to achieve production of germicidal radiation within the interior of a spiral-wound membrane module.
• Reduces biofouling in water treatment/membrane water systems, increasing efficiency and decreasing
operation costs caused by degradation
• Uses ultraviolet radiation inside membrane modules, presenting a unique and effective approach to
• Allows membrane to operate at maximum water fluxes with less pressure demand, extending
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