Investigation of Sewage Flows in Universiti Malaysia PAHANG’s Sewerage System

Sewerage systems have long been one of the most critical infrastructure to any development project. The study presented here is part of a research that aim to evaluate the flow characteristics in sewerage systems. Sewage flow data was collected from a sewerage catchment within Universiti Malaysia PA...

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Bibliographic Details
Main Authors: Ngien, S. K., Norasman, Othman, Nadiatul Adilah, Ahmad Abdul Ghani
Format: Conference or Workshop Item
Language:English
Published: 2015
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/9411/
http://umpir.ump.edu.my/id/eprint/9411/
http://umpir.ump.edu.my/id/eprint/9411/1/Investigation%20of%20Sewage%20Flows%20in%20Universiti%20Malaysia%20PAHANG%E2%80%99s%20Sewerage%20System.pdf
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Summary:Sewerage systems have long been one of the most critical infrastructure to any development project. The study presented here is part of a research that aim to evaluate the flow characteristics in sewerage systems. Sewage flow data was collected from a sewerage catchment within Universiti Malaysia PAHANG using an area-velocity flowmeter. The data obtained were extracted using a software associated to the flowmeter and analyzed for both dry and wet periods. The results show that the peak or maximum flow for the wet period with a rainfall intensity of 2.5 mm was twice as high for the dry period. The design criterion value back-calculated for the wet period was also twice the value for the design criterion value back-calculated for the dry period. This demonstrates that rainfall has an important effect on flows in sewerage system in that it increases the flow significantly. The k value back-calculated for both dry and wet periods were lower than the criterion recommended in Malaysian Standard MS1228:1991, suggesting that the current peak flow factor equation applied by the industry is over-adequate for sewerage catchments servicing the same population equivalent as this study.