Periodic cleaning of RO membranes is essential to restore their performance after fouling has occurred. Cleaning chemicals, often acidic or alkaline solutions, are used to remove organic and inorganic contaminants that accumulate on the membrane surface. Common cleaning agents include citric acid, sodium hydroxide, and specialized commercial cleaning products. The cleaning process is tailored to the type of fouling observed, and it is crucial for prolonging the lifespan of the membranes.
Water is often recycled in cooling systems, leading to an accumulation of contaminants that can adversely affect operational efficiency. Without proper treatment, issues such as scaling, which occurs when minerals precipitate and settle on heat exchange surfaces, can reduce heat transfer efficiency significantly. Similarly, corrosion can occur when the metal components of the system react with impurities in the water, leading to leaks and equipment failures. Furthermore, the absence of biocides can result in the proliferation of algae and bacteria, leading to biofouling and reduced water quality.