Although drinking water supplied through urban networks today undergoes treatment in purification plants, it can be exposed to various physical, chemical, and microbiological contaminants during the distribution process. Therefore, direct consumption of tap water as drinking water can pose a health risk, especially for sensitive groups (children, the elderly, immunocompromised individuals).
Contaminants detected in tap water are generally examined in three main groups:
Physical contaminants include suspended solids that increase water turbidity. Sand, mud, rust, sediment, and metal particles broken off from pipelines fall into this group. Especially in areas with old infrastructure, particles from iron and lead pipes can negatively affect water quality.
Chemical contaminants can be both natural and human-made. Nitrates and pesticides from agricultural activities, heavy metals (lead, arsenic, cadmium) from industrial waste, and chlorine and its byproducts (trihalomethanes) are among the most common chemical contaminants. Scientific studies have shown that long-term exposure is associated with various chronic diseases.
Microbiological contaminants consist of bacteria, viruses, and protozoa. Pathogenic microorganisms such as Escherichia coli, Salmonella spp., Legionella spp., Giardia, and Cryptosporidium can enter the water, especially due to leaks in the distribution network or insufficient disinfection.
Household water purification devices use various filters and purification technologies to reduce contaminants in water.
• Sediment filters retain physical particles such as sand, sediment, and rust in the water.
• Activated carbon filters are effective in removing chlorine, chlorine byproducts, volatile organic compounds, and substances causing bad taste and odor.
• Reverse Osmosis (RO) systems can remove dissolved salts, heavy metals, and many chemical contaminants at a high rate through semi-permeable membranes.
These technologies are highly successful in reducing physical and chemical pollution and are widely used today.
Although water purification devices are effective against physical and chemical contaminants, they cannot provide adequate protection for the removal of microorganisms. While reverse osmosis membranes and carbon filters can retain some microorganisms, very small pathogens like viruses can still pass through.
More importantly, microorganisms accumulated on filter surfaces can multiply in moist and nutrient-rich environments over time. This situation increases the risk of microbiological re-contamination, especially in systems that are not regularly maintained, and can reduce the hygienic quality of purified water.
Sterilisa Water Purification and Disinfection Device offers a multi-stage and integrated approach to eliminate these risks. The 8-layer filter system within the device effectively removes physical and chemical contaminants from the water.
Following the filtration stage, the patented Pulsed Light Technology instantaneously disrupts the DNA and cellular structures of pathogenic bacteria, viruses, and other microorganisms that may be present in the water, providing disinfection simultaneously with the water flow. Sterilisa technology offers a significant advantage by ensuring microbiological safety without the use of chemical disinfectants.
Sterilisa offers a holistic solution aimed at providing not just purified, but completely safe and hygienic drinking water.
When purchasing a water purification device, attention should be paid not only to physical and chemical purification performance but also to microbiological safety. The presence of an effective disinfection technology alongside filtration is critically important for healthy drinking water.
References
American Public Health Association. (2017). Standard methods for the examination of water and wastewater (23rd ed.). APHA Press.
LeChevallier, M. W., & Au, K. K. (2004). Water treatment and pathogen control: Process efficiency in achieving safe drinking water. World Health Organization.
WHO. (2017). Guidelines for drinking-water quality (4th ed.). World Health Organization.
Wekhof, A. (2000). Disinfection with flash lamps. Journal of Photochemistry and Photobiology B: Biology, 56(2–3), 83–87.
