Another physical process is filtration, which involves passing water through various media to remove suspended solids. Filters can be composed of sand, gravel, or advanced materials like activated carbon or membranes. The choice of filtration method depends on the specific contaminants present in the water and the desired quality of the treated water. Membrane technologies, such as reverse osmosis, are particularly effective for removing a wide range of contaminants, including dissolved salts and organic compounds.
Maintaining the correct pH level in cooling tower water is vital for preventing corrosion and scaling. Typical pH adjusters include acids (such as sulfuric acid) and bases (like sodium hydroxide). Regular monitoring and adjustment of pH levels help ensure that the water remains in the optimal range (generally between 6.5 and 8.5), thus enhancing the effectiveness of other treatment chemicals and the overall system performance.