BWSSB to Move Towards Semi-Automated Injection of Calcium Hypochlorite to Disinfect Water

In the initial phase, the semi-automatic system will be installed at five chlorination plants and integrated with the Supervisory Control And Data Acquisition (SCADA) system to keep track of the recorded data.

WD News: BWSSB is launching a pilot project for the first time in the state to move away from chlorination and towards the semi-automated injection of calcium hypochlorite to disinfect water.

Although newer methods of disinfection have become more widely used over time, the Bangalore Water Supply and Sewerage Board (BWSSB) has persevered with chlorination as its primary water purification process.

“Now, there are new techniques such as ozonation and the use of calcium hypochlorite (are available). However, since it is not widely used in India, we were not sure how it would work for Bengaluru water. Hence, we are taking up a pilot project to study the impact,” said Sanath Kumar, Additional Chief Engineer (Quality Assurance), at BWSSB.

An official noted that while ozonation could be expensive, the use of calcium hypochlorite might be a more financially feasible option. The current practice of pumping chlorine into the water in gas form has the potential for a catastrophic consequences if there is a leak. This has necessitated the exploration of more reliable methods of disinfection, the official added.

Source: Deccan Herald
Image courtesy: Piaxabay

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