Carburos Metálicos, a leading company in the industrial and medicinal gases sector in Spain, which is part of the Air Products Group, has presented its new Halia QM® system for pH neutralisation for water treatment at iWater 2018.
The new Halia QM® system for reducing the pH of water, both wastewater, drinking water and process water, uses CO2 which, when dissolved in water, forms carbonic acid, which acts as a neutralising agent. The equipment has been specially designed for the optimisation of gas consumption and to adapt to the particular characteristics of each installation. In this way, it is possible to minimise both the fixed costs of the equipment and the operating costs. Consequently, the use of CO2 to regulate pH becomes an alternative, not only better from an environmental and safety point of view to mineral acids, but also a cheaper alternative.
The use of CO2 as a neutralising agent is a better alternative than the use of mineral acids, taking into account the many advantages it brings, from a technological, safety or economic point of view, but mainly from the environmental point of view. Neutralising with CO2 is the most sustainable way to reduce the pH of water, since it not only prevents the formation of residual salts such as chlorides or sulfates, but also contributes to the CO2 being fixed in the water in the form of bicarbonates, thus avoiding its emission into the atmosphere.
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