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
48% industrial clusters in India are critically polluted: CPCB
CPCB's comprehensive environmental assessment of industrial clusters finds only 16% spots with normal pollution levels. Ankleshwar in Gujarat is the worst, while Digboi in Assam is the best. Posted on 10 Aug, 2010 11:38 PM

CPCB ReportA Comprehensive Environmental Pollution Index (CEPI) is a very useful tool to capture the health dimensions of the environment including air, water and land. The CEPI is intended to act as an early warning tool and can help in categorising the industrial clusters/areas in terms of priority of planning needs for interventions.

This report by the Central Pollution and Control Board (CPCB) presents the results of the application of the CEPI to selected industrial clusters or areas.

The main objective of the study was to identify polluted industrial clusters or areas in order to take concerted action and to centrally monitor them at the national level. This was in order to improve the current status of environmental components such as air and water quality data, ecological damage, and visual environmental conditions.

Fluoride free drinking water supply in North Gujarat: The rise of Reverse Osmosis plants as a cottage industry - A study by CAREWATER
Reverse Osmosis plants, cottage industry, providing fluoride free water in North Gujrat since 1970s. Posted on 10 Aug, 2010 10:04 PM

The study by Carewater INREM Foundation explores the rise of Reverse Osmosis (RO) plants since 1970s as a cottage industry for providing fluoride free water supply in North Gujarat.

Groundwater contamination and rural water treatment in Gujarat - a discussion paper by Carewater INREM foundation
The discussion paper deals with groundwater contamination and rural water treatment in Gujarat, as quality problem of this important drinking water source has led to high social costs Posted on 07 Aug, 2010 06:09 PM

carewaterThe state is characterized by varied hydrogeology and vast areas are faced with typical groundwater quality problems like fluoride.

Invitation for case study submission in water magazine
Everything About Water formally invitaties for editorial contribution (a Case Study) for a monthly water & wastewater magazine. Posted on 06 Aug, 2010 11:26 AM

Everything About Water

Our publication is coming up with the annual "Case Study Special Issue” in Sept. 2010. Its a collector’s issue, where we are covering leading industries across the globe.

Impacts of groundwater contamination with Fluoride and Arsenic: A report by CAREWATER
The impacts of groundwater contamination with fluoride and arsenic in India Posted on 04 Aug, 2010 10:25 AM

carewater

The field research study conducted by Carewater INREM Foundation attempts to establish the impacts of groundwater contamination with fluoride and arsenic in India. It maps the affliction severity, the medical cost and wage loss through a multi-location study in some villages in the States of Rajasthan, Andhra Pradesh, Karnataka and West Bengal.

Reverse Osmosis plants for rural water treatment in Gujarat - A study by CAREWATER
Rural Gujarat's solution for drinking water: Reverse Osmosis technology Posted on 03 Aug, 2010 10:21 PM

carewaterThe report by Carewater INREM Foundation deals with Reverse Osmosis (RO) technology, which is emerging as an important solution for drinking water treatment in rural Gujarat. RO plants with capacity ranging from 10 litres per hour (lph) to 6000 lph are now supplying drinking water in several hundred villages of the State. Small sized plants with capacity < 20 lph are used by individual families whereas medium to large sized plants (>100 lph) are being used for public consumption.

5th Global YES Summit, Rework The World - A trip report
The YES Summit: Working toward a new world for the youth Posted on 26 Jul, 2010 11:17 PM

Had the opportunity to attend a recent worldwide gathering on the topic of youth and social entrepreneurship, which gave much food for thought. The event was the 5th Global YES Summit, entitled “ReWork The World”.  Details of the gathering are at www.reworktheworld.org . The message there  was that we need to do something radical in order to find productive work for the vast numbers of youth coming into the workforce especially in developing nations. The new jobs cannot be of the old variety, they need to be green, sustainable jobs. In other words, we need to ‘rework the world’.  The conference was based on the premise that these new jobs will come out of social entrepreneurship.

History of water filters - Past, present and future of water filtration technology
The History of Water Filters website, has interesting and useful information on water filters, water treatment alternatives and water quality. Posted on 11 Jul, 2010 02:16 PM

The History of Water Filters website, has interesting and useful information on water filters, water treatment alternatives and water quality.

A study of saline freshwater interface phenomena in the Mahanadi delta region (Orissa)
Orissa's freshwater aquifer systems prone to saline water mixing and migration with time and development Posted on 10 Jul, 2010 10:40 PM

A study of saline freshwater interface phenomena in the Mahanadi delta region (Orissa)The subsurface aquifer systems in Mahanadi delta region in Orissa (India) is largely characterized by two groups of freshwater aquifer systems, both of which are prone to saline water mixing/migration with time and development:

  • The south western Mahanadi delta region is represented by unconfined to semi-confined freshwater aquifers underlained by brackish/saline aquifer systems with a diffusion boundary.
  • The north eastern parts of Mahanadi delta is represented by deep freshwater confined aquifers overlained by brackish/saline water aquifers with aquitard/ aquiclude boundary.
Optimal operation of groundwater skimming wells A study of 90 wells along the river Yamuna at Palla,North Delhi
This report examines the problem involving the pumping of groundwater from a group of 90 existing wells along the banks of the Yamuna River, northwest of Delhi (India), underlain with geologically occurring saline water. Posted on 02 Jul, 2010 04:49 PM

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