Fact or fallacy: ‘RO is a defence against contaminants’

Why has RO become so popular?

RO’s popularity stems from its ability to eliminate a wide array of contaminants, including bacteria, viruses, salts, chemicals and other impurities. A report by the National Statistical Office indicates that two-thirds of households in India drink water that is neither safe nor treated. Shockingly, only 8 per cent of households boil water before consumption, a method that is not particularly efficient in removing contaminants.

The Bureau of Indian Standards (BIS), in its water quality report, highlights that conventional water sources in numerous cities, including Delhi, Kolkata, Chennai, Bengaluru, Jaipur and Lucknow, fail to meet the required parameters for safe drinking water. In contrast, RO purifiers provide an effective defence against these contaminants, making them a vital technology in the quest for clean water. Moreover, the versatility of RO purifiers makes them adaptable to various water sources, whether it be groundwater, municipal supply, or alternative sources.

With a growing population, increasing urbanisation and industrial activities contributing to water pollution, the demand for advanced purification methods in the country is likely to soar. The future of RO lies in further technological advancements, increased accessibility and a heightened awareness of the importance of clean water.

How does Kent RO balance minerals, for example, to preserve the properties of copper and zinc, in water?

Reports and studies have indicated that RO water, while effectively removing impurities and contaminants, might also eliminate essential minerals during the purification process. The safety and impact of RO water on health are crucial considerations. To counteract this, Kent has developed a proprietary Mineral ROTM technology, a multi-stage filtration process that seamlessly combines the prowess of RO, UV (Ultraviolet filtration), UF (Ultrafiltration), and total dissolved solids (TDS) control. By incorporating the Mineral ROTM technology, Kent’s RO systems allow users to adjust the TDS level of purified water.

This article was originally published as part of  Down To Earth’s special issue dated 16-31 March, 2024.  Download the full story for free

This feature empowers users to customise their drinking water, ensuring that it not only meets the highest standards of purity but also retains the essential minerals vital for the human body’s well-being. Kent’s RO purifiers and Mineral ROTM technology also aim to preserve essential minerals such as copper and zinc in water. To ascertain the zinc and copper levels in water at a specific location, water quality testing kits or professional laboratory analysis can provide accurate information. Kent holds a substantial position in the water purifier market, boasting a 40 per cent market share in the RO sector. The company’s RO systems are particularly popular in the northern regions of India.

How do people who rely on government-supplied tap water address health concerns?

It is essential to recognise potential challenges associated with the municipal water sources. In many instances, the source of the supply remains unknown, leaving consumers unaware of the quality of water they receive. A prevalent issue faced by households is the occurrence of hard water, a concern with implications for health.

In major Indian cities like Delhi-National Capital Region, Mumbai, and Bengaluru, reports highlight the alarming presence of toxic chemicals, including arsenic, lead, and microplastics, necessitating the use of advanced RO technology for effective removal.

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