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Pharmaceutical industry, water purification systems typically involve multiple stages to ensure high-quality purified water.
A multimedia filter is a water filtration process that uses multiple layers of media to pass water through. The layers are progressively sized in coarseness and depth, with the coarsest and densest media at the bottom, and the lighter, finer media at the top.
Carbon filters play a crucial role in the process of water purification as they remove all the unwanted chemicals and organic compounds like chlorine, pesticides, and other Volatile Organic Compounds (VOCs) that may be present in the water.
Carbon filters should be replaced every 6-12 months.
Softening: Removing hardness minerals like calcium and magnesium through ion exchange or other methods.
Reverse Osmosis (RO): A membrane filtration process that removes dissolved solids, organic compounds, and other contaminants from the water.
Deionization (DI): Further purification through ion exchange to remove remaining ions, producing ultra-pure water.
Ultrafiltration (UF) or Microfiltration (MF): Additional filtration steps to remove bacteria, viruses, and other microorganisms.
UV Treatment: Ultraviolet light exposure to sterilize the water and eliminate any remaining microorganisms.
Ozonation: Application of ozone gas to oxidize and destroy organic contaminants, improving water quality and disinfection.
Converting purified water to Water for Injection (WFI) involves additional purification steps to meet the stringent quality standards required for injectable
Boiling the Water: Raising the temperature of the water to a boiling point is a tried and tested method of water purification that has been in practice since time immemorial. While the process is simple, its efficiency is limited.
Boiling the water can only denature water-borne pathogens to a certain degree but is ineffective in getting rid of the non-organic contaminants which are usually found in the feed water. Owing to its limitations, the process is practiced only as an auxiliary method to complement other more potent methods such as RO or EDI.
