Full Description

Nonrevenue water (NRW), mainly caused from leaking pipesand other sources of wasted water, is a concern to waterutilities around the world. Some countries have very lowNRW levels, such as the Netherlands with just 5% of its waterlost to NRW. Other countries, and very often developing countries,have NRW levels many times that rate, some more than 60%.Most countries experience NRW levels of between 20 and 30%.In recent years, Bangladesh has faced severe water systemleakage not only in its capital and large cities but also in medium-sizedcities. Four medium-sized cities, Kushtia, Sylhet, Cox'sBazar, and Pabna, estimated their respective NRW in 1992-93 as22, 40, 42, and 52%. This water loss affects about 1 millionpeople.To reduce the high rate of NRW to an acceptable level inmedium-sized cities throughout the country, the Local GovernmentEngineering Department conducted a leakage control study in thefour subject cities to examine the currently deteriorating situationof the existing water supply systems, including unacceptableleakage levels. The study provided new methods and approachesto upgrade the water distribution networks by controlling leakageand implementing remedial measures to bring NRW down to asatisfactory level. Includes 25 references, tables, figures.

Product Details

Edition: Vol. 94 - No. 8 Published: 08/01/2002 Number of Pages: 12File Size: 1 file , 1.8 MB