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Sustainability of roughing filters in Sri Lanka
conference contribution
posted on 2018-02-12, 15:09 authored by J.M.J.C. JayalathRoughing filters of various types and shapes, such as Up flow, Down flow and Horizontal flow are operated in Sri lanka.
Performance of some the filters was evaluated to assess the sustainability of filters and find out what improvements are
needed for efficient operation of the filters in future. The recent observations show that rectangular type Up flow & Down
flow filters have been sustainably managed for several years of operation where a proper maintenance schedule is used
with a trained care taker. The circular filters of large diameter have some operational problems due to short-circuiting and
inefficient hydraulic cleaning. The major problems affecting the sustainability are due to the design problems associated
with filtration velocity, scouring velocity, uniform distribution of inflows and some operational problems such as operation
manuals, training and operator’s commitments. Even though roughing filtration is a simple technology which can be
simply managed, it needs constant care and monitoring for efficient operation and sustainability.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Water, Engineering and Development Centre (WEDC)
Published in
WEDC ConferenceCitation
JAYALATH, J.M.J.C., 2006. Sustainability of roughing filters in Sri Lanka. IN: Fisher, J. (ed). Sustainable development of water resources, water supply and environmental sanitation: Proceedings of the 32nd WEDC International Conference, Colombo, Sri Lanka, 13-17 November 2006, pp. 366-368.Publisher
© WEDC, Loughborough UniversityVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2006Notes
This is a conference paper.Other identifier
WEDC_ID:13139Language
- en
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