How does an eco-friendly waste water treatment work ? Storage of treated water and reuse.

India accounts for 2.45% of land area and 4% of water resources of the world but represents 16% of the world population. Water resource which is ideal for use in India is 1,123 Billion Cubic Meter from which 690 BCM can be used from surface and 433 BCM can be used form ground. 

Irrigation sector consumes most of the water which is almost 688 BCM and according to the data sources it may increase 1072 BCM by 2050.

Due to increase in population and development activities in India, the per capita average annual freshwater availability has been reducing since 1951 from 5,177 m3 to 1869 m3, in 2001 and 1588 m3, in 2010 and expected to further reduce an extreme low value  1,140 m3 by 2050.

- Indian Agricultural Research Institute

Wastewater in India and its discharge.

There are so many developments are happening all around the country, expansion of cities and domestic water need is increasing in the same ratio so at the same time and pace waste water disposal is taking place on higher rate ever before.

According to the latest estimates in India 70-80% of domestic water turn into waste water. As per the CPCB estimates alone Delhi discharging 3,663 MLD of waste water, its a serious concern for country. 


India's biggest STP to come in Okhla- Delhi (source - The Hindu)


Innovation in water treatment, What is an eco-friendly wastewater treatment ? 

By seeing the current water scenario and future of waste water researchers are doing their best in developing efficient methods for water treatment. Today we are talking about one of the Eco friendly wastewater treatment systems developed by Indian Agricultural Research Institute where the research team developed a water treatment facility in its Delhi campus which utilises emergent macrophytes , local media, and native microorganisms which is present in natural wastewater. This facility is treating around 2.2 Million Liters of water in a day. 

This (e-STP) has total three treatment cells which are quite effective and irrigating 132 ha of IARI farmland. Each of this treatment cell is full of thick media of vegetation planted upon it. These wetland plants have the ability to transfer oxygen from its leaves, down through its stem and out via its root system. As a result of this whole process a very high population of native micro-organisms tends to naturally grow-up in its root area, where most of the organic and inorganic transformations takes place. 


The flow of waste water in each treatment cell is regulated to ensure its below ground flow, as waste water moves slow and care fully through the root mass of plantation, its interaction with native micro organisms and the pant media, various nutrients and heavy metals in wastewater gets transformed and removed from the treatment zone thereby filtering the wastewater. Treated water collected in a holding tank and finally reused into irrigation.  

What should be the ideal storage of treated water ? 

Storage of treated water is equally important as treatment of water as it takes a lot of resources, cost and time in treating water. Beltecno support sustainability and manufacturing eco-friendly stainless steel panel tanks to ensure uninterrupted water supply. 

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