Wastewater

Featured Articles
October 11, 2022
Visualizing the Vrishabhavathi river to keep it alive
In an effort to inform the general public, especially citizen activists, policymakers, researchers, and students, about the current status of the Vrishabhavathi river, Paani.Earth has created the necessary maps, data, analysis, and information to drive conservation awareness and action around the river.
Vrishabhavathi river (Image Source: Paani.Earth)
November 21, 2019
Jaipur’s wastewater conundrum
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 15, 2019
When the sewers get blocked: sanitation labour in urban India
On World Toilet Day, we bring to light the labour of India’s sewer workers - those who do the unclean work that a Clean India relies on.
Photo credit: Sharada Prasad
October 28, 2019
Unregulated e-waste hotspots operating in Delhi with no safeguards
Study identifies 5,000 illegal e-waste units in Delhi operating without health and environmental safeguards.
Most of the operations in these units were found to be manual and rudimentary (Image: Toxics Link)
October 25, 2019
Mapping Pune’s aquifers
Groundwater use has doubled in Pune. Comprehensive mapping of groundwater resources and better management and governance is the need of the hour.
Groundwater, an exploited resource (Image Source: India Water Portal)
October 6, 2019
Deadly chemicals from detergents end up in rivers
India needs to come up with a regulation on use of toxic chemicals in detergents.
Nonylphenol, a toxic chemical found in detergents is known to enter the water bodies and even the food chain, where it bio-accumulates and can pose serious environmental and health risks (Image: Toxics Link)
"Kochi: To Get Rs 100 Crore Modern Sewerage System" : Droplets (May '10)
The May'10 newsletter features story on Kochi's Rs100 crore modern sewerage system and other water news.
Droplets
Posted on 25 May, 2010 12:08 PM

Droplets newsletter

Highlights

  • Kochi: To Get Rs 100 Crore Modern Sewerage System
  • Punjab: Rs 53.58 Crore New Water Supply & Sewerage Project
  • Pune: To Construct 120 MLD Water Filtration Plant
  • Water.Org: Launches India WaterCredit Forum
Water conservation by Industry – A case study of Mahindra and Mahindra, Zaheerabad
The presentation deals with Mahindra and Mahindra’s work on optimal utilization of groundwater resources in its vehicle manufacturing plant at Zaheerabad, Andhra Pradesh.
Mahindra and Mahindra
Posted on 30 Apr, 2010 11:07 AM

The presentation deals with Mahindra and Mahindra’s (M&M) work on optimal utilization of groundwater resources in its vehicle manufacturing plant at Zaheerabad, Andhra Pradesh. M&M had taken help from ICRISAT and Groundwater Department of GoAP to study the hydro-geology and topography of the estate and prepare ground water maps.

A time bound master plan of water augmentation was worked out to undertake activities like rainwater harvesting pits, new locations for borewells/ openwells/ percolation tanks, planting of less water intensive trees, re-usage and re-cycling of wastewater, rainwater channels to recharge the under ground water reservoirs and installation of drip irrigation.

Water conservation by Industry – A case study of ITC, Saharanpur
This presentation describes the work of ITC Saharanpur, a cigarette manufacturing company in the field of water conservation, by reusing treated water and other initiatives.
ITC Limited
Posted on 29 Apr, 2010 12:41 PM

This presentation describes the work of ITC Saharanpur, a cigarette manufacturing company in the field of water conservation. Its water saving projects are centered around re-use of treated water for reducing water consumption, Effluent Treatment Plant (ETP) based effluent network system in residential areas, rainwater harvesting, installation of Cold Plasma Unit in place of wet scrubbers and installation of a jet spray system.

Rain water harvesting, recycling, reuse of waste water and using less water will help in water conservation, says Sekhar Raghavan, director of Rain Center, Chennai
Speaking at a meeting organised in Coimbatore on the occasion of World Water Day, Sekar Raghavan of Rain Center emphasised on rainwater harvesting, recycling and reuse of waste water.
Sekar Raghavan
Posted on 21 Apr, 2010 05:45 PM

Post forwarded by : Sekhar Raghavan
Case studies on Water Management by Industry from the CII-GBC National Awards for Excellence in Water Management (2007)
The presentations describe in detail how companies have undertaken wide ranging and innovative eco-friendly modifications to equipment and procedures around them.
Confederation of Indian Industry (CII)
Posted on 21 Apr, 2010 12:43 PM

CII GBC logo

The CII-GBC National Awards for Excellence in Water Management 2007 are an important step towards encouraging,  supporting and applauding industry efforts to conserve water and reduce toxic effluent discharge. As India's economic boom gathers more and more momentum with each passing year, industrial water and energy use and related environmental impacts are going to be among the most critical factors in resource sustainability debates in the country and elsewhere. The companies portrayed represent a wide spectrum of industry: paper, metals, agro-processing, synthetic fibre, petroleum, transport, cement, energy, fertilizer, soft drinks and more.

Water Footprint Manual: State of the art - A method of water footprint assessment by the Water Footprint Network (November 2009)
The Water Footprint Manual shows how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses.
Arjen Y Hoekstra
Ashok K Chapagain
Maite M Aldaya
Mesfin M Mekonnen
Water Footprint Network
Posted on 11 Apr, 2010 07:37 PM
he Water Footprint Manual, 2009 by the Water Footprint Network is a comprehensive and up-to-date outline of the method of water footprint assessment. It introduces 
how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses. 
The concept is introduced as a comprehensive indicator of freshwater resources appropriation, as against the traditional and restricted measure of water withdrawal. 
The hidden water use behind products are measured over the full supply chain and water consumption volumes are measured by source and polluted volumes by type of 
pollution. All components of a total water footprint are specified geographically and temporally. Blue water (surface and groundwater), green water (rainwater stored 
in the soil as soil moisture) and grey water (polluted water) footprints are defined and are included along with the indirect water use in measuring the overall water 
footprints.
The core of the manual deals with the four distinct phases in water footprint assessment: (1) setting goals and scope; (2) water footprint accounting; (3) water 
footprint sustainability assessment; (4) formulation of response. The goals and scope would vary for national governments, river basin authority, company etc. Water 
footprint accounts give spatiotemporally explicit information on how water is appropriated for various human purposes. The manual articulates the need for clarity 
about the inventory boundaries, about where to truncate the analysis, at what level of spatiotemporal explication and for which period of data when setting up a water 
footprint account. It in addition deals with difficult questions like whether to include the water footprint of labour, transport or energy applied in a production 
system in the assessment of the water footprint of the final product. 
The manual then goes on to state the inventory boundaries of water footprint sustainability assessment. The sustainability of a water footprint is viewed upon from 
different perspectives: the environmental, social and economic perspective. Besides, sustainability is measured at different levels: local (e.g. violation of local 
environmental flow requirements), catchment or river basin level (e.g. contribution to the violation of environmental flow requirements downstream). In addition, the 
water footprint of a product has implications beyond the level of a particular river basin. In the section on water footprint accounting the coherence between various 
sorts of water footprint accounts is looked at. The manual presents complex equations explicating the water footprints due to processes and products and has sections 
dealing with calculation of (a) green, blue and grey water footprint of growing a crop or tree (b) green and blue evapotranspiration using the CWR (Crop Water 
Requirements) option in the FAO’s CROPWAT model (c) green and blue evapotranspiration using the ‘irrigation schedule option’ in the CROPWAT model. The manual also 
presents the data sources for the calculating these.

Water Footprint Manual - Cover PageThe Water Footprint Manual (2009) by the Water Footprint Network (WFN) is a comprehensive and up-to-date outline of the method of water footprint assessment. It introduces how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses.

The concept is introduced as a comprehensive indicator of freshwater resources appropriation, as against the traditional and restricted measure of water withdrawal. The hidden water use behind products are measured over the full supply chain and water consumption volumes are measured by source and polluted volumes by type of pollution. All components of a total water footprint are specified geographically and temporally. Blue water (surface and groundwater), green water (rainwater stored in the soil as soil moisture) and grey water (polluted water) footprints are defined and are included along with the indirect water use in measuring the overall water footprints.

An ecological framework for water management in a domestic context - A spreadsheet-based toolkit by Biome
This toolkit shows the domestic water input and output situation using the domestic water demand, waste water discharge and treatment, and rainfall availability.
Biome Environmental Solutions Private Limited
Posted on 08 Apr, 2010 10:43 PM

Based on user-entered data on domestic water demand, waste water discharge, rainfall availability and recharge, extent of reuse of treated waste water, this spreadsheet-based toolkit developed by Biome Solutions allows you to juggle around with the relevant data fields, and figure out various ways in which you can bring down your overall groundwater draft (and hence ecological footprint) as low as possible, and gives a snapshot result of your overall household-level water input and output situation.

8th Everything About Water Expo 2011, EA Water, Mumbai
Posted on 26 Mar, 2010 11:24 AM

8th Everything AboutWater Expo 2011

Organizer: EA Water Private Limited

Topic: International Exhibition & Conference on Water & Wastewater Management

Venues:

  • Exhibition: Bombay Exhibition Centre, Goregaon (E), Mumbai
  • Conference: Hotel InterContinental The Lalit, Andheri, Mumbai

Description:

The show is South Asia’s largest and the only show in the country organised by water experts. With more than 350 exhibitors, over 18,000 trade visitors and 900 conference delegates from across the globe, the EA Water Expo shall redefine water shows in India.

Status of water supply and wastewater generation and treatment in Class-I cities and Class-II towns of India - A report by CPCB (2009)
This is the fourth in a decadal series of reports published by the Central Pollution Control Board (CPCB), which provides basic information about the status of water supply and sewage generation.
Central Pollution Control Board (CPCB)
Posted on 23 Mar, 2010 03:34 AM

CPCBThis is the fourth in a decadal series of reports published by the Central Pollution Control Board (CPCB), previous ones published in 1978-79, 1989-90 and 2000, which provides basic information about the status of water supply and sewage generation and treatment of 498 Class-I cities and 410 Class-II towns, along with information on 53 coastal Class-I cities and 35 coastal Class-I towns, besides Ganga Basin as a separate subsection.

Opportunity for Effluent Treatment and Recycling Plant
Posted on 02 Mar, 2010 12:33 PM

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