Cause of reverse osmosis membrane fouling and its prevention and cure

The fouling of reverse osmosis membrane was affected by the membrane own characteristics,water quality and operation condition.The study status on the effects of material,structure and module of the membrane,operating temperature,pressure,pH value,shear rate and water quality on reverse osmosis membrane fouling were summarized.It also indicated that,designing low pollution or pollution-resistant membrane and membrane modules,optimizing operation condition,adding water pretreatment and efficient membrane cleaning technology was the development direction of the reverse osmosis membrane technology.