International Journal of Environmental Sciences

Volume 4 Issue 6 2014- May 2014    Pages: 1177-1189  <<Previous    Next>>

Water quality analysis of river Yamuna – the Delhi stretch

Author Information:

Vaishali Sahu, Prachi Sohoni

ITM University, Gurgaon, Haryana

ABSTRACT

The Yamuna River, a tributary of the Ganga River, is one of the most polluted rivers in India and especially in urban centres like Delhi is of a critical water quality. The discharge of untreated waste water is the main reason of the decrease in water quality. But also diffuse sources like dumping of waste material, religious offering of flowers or food, immersion of idols, holy baths, clothes washing or cattle bathing lead to pollution. The rapid growth and the high population density in India make the situation getting worse very fast. Although there are many investigations, e.g. the Yamuna Action Plan, an improvement is hardly noticeable. As per Central Pollution Control Board (CPCB) the water quality of River Yamuna is of the category E which makes it fit only for irrigation, industrial cooling and controlled waste disposal. The test results confirmed a bad water quality, thus zero dissolved oxygen, normally 4 mg/l, and a BOD of 17 mg/l, 3 mg/l in a good condition, was determined. These results were measured during non-monsoon season where only 20 % of the annual rainfall appears. The results can vary in monsoon season but in comparison to the average values of CPCB most results were similar. As per prognosis India won’t reach the Millennium Development Goal, to halve by 2015 the proportion of people without basic sanitation. To improve the situation more wastewater treatment plants should be built in order to connect all Delhi’s population to a sewage system. To install decentralized water treatment plants and public sanitation is important as well. On the other hand to deal with the waste problem, investments for a new solid waste management system for recycling should be done. And last of all awareness programs to make people understand the importance of a good water quality should be carried out because no efforts can improve the water quality when people still don’t care about it.

Keyword: Disposal, reuse, water treatment plant sludge

DOI:10.6088/ijes.2014040600008

© 2014 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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