Contamination, Pollution and Quality

A low-cost wastewater treatment system consisting of an anaerobic, deep pond, which uses a digestion chamber for degrading various types of sewage sludge and the solids from the influent wastewater stream.
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The principles and ideas presented have been shown to be effective in increasing the capacity of water, and are based on extensive experience in upgrading a variety of treatment plants throughout the world. The procedures proposed apply not only to the optimization of existing treatment plants but also to the design of new ones.

Microorganisms occur in piped distributions from source water, through contamination during distributions and because of growth. Different organisms may cause a range of adverse health effects. Effective management varies with the organisms and their origin.

This presentation by M G Gopal of the Hyderabad Metropolitan Water Supply and Sewerage Board deals with the water issues faced in the city. The issues presented include – (a) Inter-sectoral allocation (b) Meeting the demand (c) Maintaining quality standards (d) Reducing unaccounted for water (e) Recycle and reuse (f) Promoting rainwater and conservation (g) Implementation of CDS and (f) Is ‘privatisation’, a solution or a disaster?

This deals with the Deep Tunnel Sewerage System (DTSS) which has been developed as an efficient and cost-efficient solution to meet Singapore’s long-term needs for used water collection, treatment, reclamation and disposal. Conceptualised and managed by PUB, it was conceived as a cost-effective and sustainable solution to meet Singapore’s long-term used water needs.

This presentation deals with a case study of rainwater harvesting of Thane city of Maharashtra. It begins with a discussion of the Environmental Status Report of the Thane Municipal Corporation for the year 1999-2000 which states that all the groundwater is non potable. The authors identify the research and development needs as follows –

This article by Dr. Prakasham Tata traces the author’s childhood dream of doing something to improve public health in Vizianagaram by ameliorating the conditions of Pedda Cheruvu and to provide a better environment around its historical centers, namely the fort, music college, clock tower, arts and science college, and the park housing the tombs of the maharajas. 

Portal Staff member Vijay Krishna writes:

Forwarded to the Portal by: Madhavi Purohit, WASMO

Image and Content Courtesy: WASMO, UNPAN

Water and Sanitation Management Organisation (WASMO), Gujarat wins the United Nations Public Service Award. Water and Sanitation Management Organization (WASMO) of Government of Gujarat has been declared winner for 'United Nations Public Service Award - 2009' under the category of "Fostering participation in policy-making decisions through innovative mechanisms"for "Institutionalization of Community Managed Drinking Water Supply Programme and User Level Water Quality". This award will be received at a ceremony to be held on 23rd and 24th June 2009 at United Nations Head Quarters in New York. It is an internationally acclaimed Award being conferred by the United Nations, Division for Public Economic and Public Administration, New York, for recognizing the significant contribution made by the organization to improve the public administration. The UNPSA Programme recognises institutional efforts to design, provide and expend services to citizens in a cost effective manner while promoting people's participation in the design of services and the definition of their needs for poverty alleviation and as a step forward to achieving the Millennium Development Goals.

Hardness of water