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
The politics of groundwater
To make access to water adequate and equitable, the focus must shift from water sources to water resources. Science, community participation and cooperation, are key to addressing our water woes. Posted on 04 Jul, 2018 12:15 PM

A growing demand for water implies the need for an improved understanding of our resources, and the ability to manage that demand in an equitable and sustainable way.

Wells, not dams, have been the temples of modern India

When solving one health problem triggers another
Studies reveal that efforts at guinea worm eradication have triggered the spread of hydrofluorosis in Rajasthan. Posted on 27 Jun, 2018 02:17 PM

Up until two decades ago, the main sources of drinking water in Rajasthan included surface water from perennial ponds, reservoirs, lakes, dams, rivers and streams with borewells and tubewells used sparingly and only in remote areas. All this changed when guinea worm infections started appearing in the state. 

A child drinks water from a hand pump. (Image Source: IWP Flickr photos)
Sawdust to treat wastewater
Researchers have come up with a low-cost method to help remove toxic dyes in wastewater. Posted on 17 Jun, 2018 07:15 PM

Water contamination due to dyes is a major cause of worry. A new study says sawdust from teak wood may help treat wastewater containing dyes and make it reusable. 

Sawdust from teak wood is found to be useful in removing gentian dye. (Source: IWP Flickr photos, photo used for representation only)
Tree cover against pollution
A study reveals deciduous trees with compound leaves more tolerant to air pollution. Posted on 29 May, 2018 08:12 AM

Degrading air quality in metro cities is a matter of concern for public health. Massive tree plantation drives are often conducted in order to provide oxygen to choking cities. But trees, much like humans, also are severely affected by pollutants in the air.

Various trees respond differently to air pollution. (Source: IWP Flickr photos)
Sewage to blame, Dal turns dull
Years of indiscriminate dumping of sewage turns Kashmir’s beautiful Dal Lake into an eyesore. Posted on 17 May, 2018 01:09 PM

Srinagar's prime tourist attraction, Dal Lake, is no more the scenic beauty it used to be. It's turning into an eyesore, thanks to sewage discharge and weed growth.

A Kashmiri boy on a boat among lotus leaves on Dal Lake. (Pic courtesy: Safeena Wani/101Reporters)
Hyderabad's sewage-filled drains cleaned manually
News this week Posted on 15 May, 2018 07:50 AM

Ahead of monsoon, workers made to clean stormwater drains filled with sewage in Hyderabad

Manual scavenging in a new avatar (Picture courtesy: The New Indian Express)
Assam continues to battle fluorosis
Safer water and better nutrition were key in mitigating fluorosis problem in parts of the state. Posted on 09 May, 2018 08:26 AM

Farhanuddin was just five years old when a pain in his knee began bothering him. It was 2013. Slowly, his legs began to change shape. They got so badly deformed that it began to affect his everyday life. He was gloomy and tired most times and had trouble walking.

All stakeholders were brought on board to work on a comprehensive approach at tackling the fluorosis problem. (Image: India Water Portal)
Corporate hand in sustainable WASH
While Swachh Bharat Mission is focused on improving sanitation in the country, an ODF India remains a distant dream. Can corporate contribution ease the sanitation challenges India faces? Posted on 07 May, 2018 11:34 AM

Despite making sanitation a national priority with Swachh Bharat Mission, 50 percent of India defecated in the open till 2014. The goal to make India open defecation free by 2019 seemed ambitious. The government provided funding but it also sought active participation from the corporate sector.

Without behaviour change, toilet infrastructure created will remain only structures that will never be used. (Image: India Water Portal)
Sewage management: Govt’s elephant in the room
Swachh Bharat Mission: Could the most ambitious cleanliness campaign in Indian history also be the most expensive failure? Posted on 06 May, 2018 11:25 AM

India’s sanitation crisis involves huge cost. Transforming the country’s sanitation and waste management by 2019 is tall order.

Sewage treatment plant in Kavoor, Mangalore installed under the Karnataka Urban Development and Coastal Environmental Management Project. (Image: Asian Development Bank)
Treating waste with worms
Earthworm gut may offer new ways of efficient recycling of organic waste. Posted on 03 May, 2018 07:15 AM

Earthworms are considered best friends of farmers, acting as engineers in soils. They are helpful in the decomposition of waste, producing biofertilisers.

Organic waste can be efficiently decomposed with the help of earthworms. (Source: IWP Flickr photos)
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