The rainy season has bid adieu to the city. The good thing about monsoon is that there is water everywhere and it’s a good opportunity to save water and replenish the depleting ground water level.Thanks to rainwater harvesting and storm water channels, the last drop of rainwater is saved and not allowed to flow into rivers and oceans. “As population grows and cities expand, the challenge is to prevent flooding and provide potable and affordable water to residents. Cities need to make their water smarter: more efficient, safe and available.“A smart water network means that we can improve energy efficiency while optimizing the whole process–whether for drinking water distribution or waste water treatment,“ B Thanik, director of Eco Buildings, Schneider Electric India, says.
Smart ways to manage water by Smart Cities is the need of the hour. They optimise water distribution, reduce operational and energy costs, and make the water cycle work faster.
Several private agencies work with urban municipal bodies and water agencies to ensure energy savings and reduce water losses. Smart equipment can collate data on leak detection, energy optimisation, stormwater management, and solutions to flooding. This is how a modern-day Smart City manages its water.
Recycling water is mandatory in Smart Cities. The primary use of water is for drinking, cooking, and bathing. After which it is treated and supplied again for washing clothes, utensils, flushing, and for general cleaning.
This water is again treated and used in farms for animals and gardening. Recycling is done at the society level, where the RWAs maintain the treatment plants.
“Sustainability is a very important aspect of smart cities as they need to make use of their resources well by reducing wastage. Smart Cities turn to water management through customised computer applications that maximise and optimise their current supply in both dry and wet seasons,“ Pratap Padode, founder and director of Smart Cities Council of India, says.
DUAL WATER SUPPLY SYSTEM
Smart Cities have a dual water supply system. There is one pipeline for providing chlorinated water for drinking, cooking, bathing, while the second pipeline provides water for other purposes. This reduces energy requirement for water purification and also saves water for any contingency.
SMART MANAGEMENT OF STORM WATER DRAINAGE
Smart Cities create a dedicated storm water drainage system from where water is harvested and used after treatment.
“In Dholera–the first Smart City of India–in Gujarat, we practise 100% rainwater collection in open storm canals with recreational spaces to ensure complete recycling and reuse of waste water,“ says Jagdish Salgaonkar, Senior Vice-President (major programmes) of AECOM, an engineering firm working for Dholera Special Investment Region (DSIR or Dholera SIR), as part of DMIC.