Performance of existing water treatment plants of Kathmandu valley

Authors

  • Bhagwan Ratna Kansakar Pulchowk Campus

Keywords:

water supply systems, water quality, turbidity, surface water and groundwater

Abstract

There are seven existing water supply systems, namely, Balaju, Bansbari, Sundarijal, Bhaktapur, Dudhpokhari, Shainbu and Chapagaon that supply water to the various parts of the Kathmandu valley. The water drawn from the water source is not suitable for drinking purpose without treatment. The water treatment has been carried out in all the existing water supply systems. Treatment varies from bleaching powder chlorination in Chapagaon system to conventional treatments like sedimentation, filtration and chlorination in Bansbari and Sundarijal systems. The status of the existing water treatment plants has been studied in detail. The study showed that most of the water treatment plants are in poor condition and very poorly maintained. Besides, the operational data are not properly recorded and kept. The treated water quality deteriorates in rainy season and does not appear to be suitable for drinking as per WHO guideline. The maintenance personnel are not well trained to operate and maintain the treatment plants. The maintenance budget is too low for normal maintenance of the treatment plants. Among the existing water treatment plants, the Mahankalchaur water treatment plant is working most satisfactorily. Keywords: water supply systems, water quality, turbidity, surface water and groundwater Nepalese Journal of Engineering Vol.1(1) 2005 pp.18-24
Abstract
5996

Author Biography

Bhagwan Ratna Kansakar, Pulchowk Campus

Department of Civil Engineering Pulchowk Campus Institute of Engineering Lalitpur-5 Nepal

How to Cite

Performance of existing water treatment plants of Kathmandu valley. (2005). Nepalese Journal of Engineering, 1(1), 18-24. https://nepjol.info/index.php/NJOE/article/view/22

Issue

Vol. 1 No. 1 (2005)

Section

Articles

License

Manuscript Submission to the Journal implies that the work described has not been published before (except in the form of abstract or as a part of published lecture, review or dissertation); that it is not under consideration for publication elsewhere; that its publication has been approved by all coauthors, if any, as well as by the responsible authorities at the institute where the work has been conducted; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher; and that the manuscript will not be published elsewhere in any language without the consent of the copyright holders. All articles published in this Journal are the sole property of the publisher. Reproduction and distribution of material published in this Journal, in any form, is not allowed without the written permission from the publisher. Authors may make their article published by The Horizon available on their personal homepage provided the source of the published article is cited and The Horizon is mentioned as copyright owner. The Journal believes that material contained in it is true and accurate at the time of its publication. Its authors, editors and publishers do not accept any legal responsibility for any omissions and errors that may be made. The Horizon makes no warranty, expressed or implied, with respect to the material contained herein.

How to Cite

Performance of existing water treatment plants of Kathmandu valley. (2005). Nepalese Journal of Engineering, 1(1), 18-24. https://nepjol.info/index.php/NJOE/article/view/22