Treatment and Purification

Featured Articles
December 2, 2019 Water stewardship is an approach predicated on the concept that water is a shared resource and so water risks are also shared risks that everyone in a catchment will face
Picture credit: Romit Sen
November 21, 2019 A report by NIUA brings to light the chinks in Jaipur's sewage system and suggests some solutions.
Routine check done by the sewage treatment plant staff in Delawas, Jaipur. The plant is part of the ADB best practices projects list. (Image: Asian Development Bank, Flickr Commons)
November 18, 2019 Bangalore's water utility is understaffed, under financed and unable to service the city's water needs.
Image credit: Citizen Matters
November 13, 2019 Policy matters this week
A domestic RO water purifier
Karnataka to stop industries from using fresh river water
Policy matters this week Posted on 13 Mar, 2018 11:19 AM

Karnataka to formulate plan to prohibit industries from drawing fresh river water

Karnataka plans to regulate fresh water use by industries. (Picture courtesy: India Spend)
Islands float on Delhi lake
Floating wetlands have been constructed on Hauz Khas lake in an attempt to naturally restore it. Posted on 08 Mar, 2018 06:09 AM

Located in the Hauz Khas urban village in the busy metropolis of Delhi is an exquisitely landscaped lush green patch. This deer park, with spotted deer, peacocks and numerous birds, leads to an incredibly beautiful lake. As per a plaque at the site, the lake is a part of the medieval (13th century) city of Delhi Sultanate.

Phytoremediation principle is used to convert Hauz Khas lake into a water purifying wetland ecosystem. (Image: Tarun Nanda)
Rajim kumbh: Leave Mahanadi alone
Rajim kumbh mela has left the Mahanadi river crying for attention. Posted on 25 Feb, 2018 07:35 PM

Around 25 lakh pilgrims across the country took a holy dip in the Mahanadi during the Rajim kumbh festival held in Rajim from January 31-February 13, 2018. For this annual religious extravaganza at the confluence of the Mahanadi, Sondur and Pairi rivers in Chhattisgarh, the state government organised various religious events.

The entrance of the CG government's culture and tourism exhibition venue at Rajim kumbh 2018.
Millions wait for toilets and water
While millions of people in India still wait for their share of water and toilets, this year's budget fails to give them any hope. Posted on 24 Feb, 2018 10:31 AM

GoI allocations for the Ministry of Drinking Water and Sanitation is Rs. 22,357 crores

The state of water supply and sanitation continues to be poor in India.
Harvesting rainwater effectively
An innovative project makes rainwater harvesting easier and more effective in certain areas of Mewat village with increased groundwater salinity. Posted on 15 Feb, 2018 01:25 PM

One of the major causes of deterioration of water quality is the increase in overall salinity. Total hardness and the presence of materials like fluoride, nitrate, iron, arsenic, and toxic metal ions determine salinity levels in groundwater. With the demand for groundwater growing rapidly, its exploitation is also accelerating which causes depletion.

The innovation was introduced in a government school building in Untka village located in Mewat district of Haryana.
Let’s poka-yoke lives of STP operators
10 safety guidelines to ensure STP operators are safe while on duty. Posted on 07 Feb, 2018 11:30 AM

Poka-yoke* is a simple Japanese quality principle from the 60s--the use of any automatic device or method that makes it impossible for an error to occur. It is a simple idea. 'Simplicity' always wins! 

Now, let's switch to STP operators and poka-yoke! 

Asia's largest sewage treatment plant at Bharwara, near Lucknow. (Source: IWP Flickr photos; photo for representation only)
Slow death of a river
River Mutha, which was once the lifeline of Pune, is in dire straits. Concerted and systematic efforts involving citizens, experts and administrators need to be made urgently to save the river. Posted on 30 Jan, 2018 02:46 PM

River Mutha, the pride of Pune, lovingly called 'Muthai' or 'mother Mutha', is dying a slow death, thanks to the rapidly urbanising city which is depositing huge amounts of untreated sewage and dirt in its waters.

River Mutha, as it flows through Pune city. (Source: India Water Portal)
Book Release and Discussion on ‘Alternative Futures: India Unshackled’, a book edited by Ashish Kothari and K. J. Joy
The book is a collection of 35 essays containing dreams, visions, and pathways of reaching a just and sustainable India.
Posted on 22 Jan, 2018 10:40 AM

Alternative Futures: India Unshackled is a riveting new book that brings together scenarios of an India that is politically and socially egalitarian, radically democratic, economically sustainable and equitable, and socio-culturally diverse and harmonious.

Purify water safely
Ultraviolet lamps free of mercury developed to purify water. Posted on 17 Jan, 2018 09:49 AM

The use of ultraviolet lamps in water purifiers is common but the presence of mercury in these lamps could be potentially hazardous. Now a group of Indian scientists have developed a mercury-free ultraviolet lamp that can be used in water purifiers.

The new mercury free UV lamp water purifier.
Hotels and industries polluting the Ganga to be sealed
Policy matters this week Posted on 27 Dec, 2017 11:43 AM

Hotels, industries, ashrams polluting the Ganga to be sealed

Ganga river at Sangam, Allahabad (Source: IWP Flickr photos)
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