The circular water economy is a growing concept, which is being embraced by the world where millions of people are still struggling to get access to potable water.
Globally, more than 785 million people did not have access to at least basic water services and more than 884 million people did not have safe water to drink, finds the ‘Joint Monitoring Programme report, Progress on drinking water, sanitation and hygiene: 2000-2017: Special focus on inequalities’ published by WHO and UNICEF. The circular water economy is a system where water usage is optimized based on recycling and reuse, thereby ensuring water availability to people, while drawing a lesser volume of fresh water from the world’s fast depleting natural water resources.
In fact, the world is seriously progressing with scalable initiatives to optimize water use. The term ‘circular water economy’ is emerging to meet the increasing demands for water amid shrinking water resources on earth. Water recycling and reuse systems to achieve water security forms an integral part of the circular water economy.
Extending the life of freshly drawn potable water from natural water sources by way of recycling is one of the ways to build up a circular economy. Non-potable needs, such as cooling of buildings, irrigating landscapes, watering gardens, flushing toilets and pavement cleaning are currently met by residential, industrial and commercial sectors alike increasingly by ensuring recycling and reuse of wastewater. With the advancement in wastewater recycling technology and wastewater monitoring, installing components for planned reuse of water has become an integral part of urban infrastructure as well.
The benefits of water recycling and reuse include:
- Reducing withdrawal of freshwater from natural water bodies/ resources
- Climate change adaptation
- Addressing pollution control and affluent reduction requirements
- Energy savings
Real Time Monitoring of wastewater and circular water economy
As Smart Water Managers, Greenvironmentindia, helps its clientele from residential, industrial, commercial and hospitality sectors to ensure efficient and safe reuse of water and wastewater through IoT based Real Time Monitoring, which is patented. In general RTM helps in making the functioning of Sewage Treatment Plants (STPs)/ Effluent Treatment Plants(ETPs) effective through real time monitoring of all chemical and biological parameters, which represent water quality.
Thus safety and usability are ensured consistently and enables diverting the recycled wastewater for non-potable purposes such as irrigation of trees, lawns and flower gardens as well as for indoor uses like toilet flushing & cleaning of common areas. The wastewater recycling includes treatment through biological or chemical applications. Real Time Monitoring (RTM) system, which is based on Internet of Things(IoT) addresses the concerns of users about the safety, purity, quality and quantity of recycled water. Experience shows that RTM can boost the users’ confidence in water reuse and thus contribute heavily to water use optimization.
To know more about Real Time Monitoring, log on to: https://www.greenvironmentindia.com/real-time-monitoring
Recycled water: End-uses
The end use of recycled water depends upon the nature of location and the requirements. In general, the recycled water is meant of non-potable purposes. However, the state-of-the-art water filtration systems are now available to even ensure recycled water of potable quality. Though, in India, the recycled wastewater is not used for potable purposes, the treated water undergoes UV disinfection and chlorine dosing to alleviate fears of bio-organisms harming the end users.
- Toilet and urinal flushing
- cooling tower make-up water
- Irrigation/ Gardening
- Decorative water features
To know more about success stories of water reuse, log on to: https://www.greenvironmentindia.com/community/case-studies/