Chemical oxygen demand concentration and its spatial distribution for rainwater of a small area at Parit Raja, Batu Pahat, Johor, Malaysia

Jalil, Mas Rahayu and Khamidun, Mohd Hairul and Musa, Sabariah and Rahmat, Siti Nazahiyah and Md Ali, Zarina (2009) Chemical oxygen demand concentration and its spatial distribution for rainwater of a small area at Parit Raja, Batu Pahat, Johor, Malaysia. In: International Conference on Water Resources (ICWR2009) , 26-27 May 2009, Langkawi, Kedah.

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Abstract

The purpose of this paper was to discuss rainwater quality based on chemical oxygen demand (COD) concentration and to map COD spatial distribution for an area of approximately 3.5 km x 3.0 km of Parit Raja, which is located at Batu Pahat, Johor, Malaysia. Rainwater samples were collected four times from June of 2007 to July of 2007 at eleven sampling stations. The measured COD concentration data were averaged and transformed into their common logarithms and then mapped through the application of kriging interpolation technique. The measured COD concentration was found ranging from 5.3 mg/L to 40.7 mg/L. The areas that received rainwater with high and low COD concentration were able to be identified and the presence of sources of rainwater contamination was suggested from observation on the developed COD spatial distribution map.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:chemical oxygen demand; rainwater quality; kriging; spatial distribution
Subjects:T Technology > TD Environmental technology. Sanitary engineering
Divisions:Faculty of Civil and Environmental Engineering > Department of Water and Environmental Engineering
ID Code:2753
Deposited By:Normajihan Abd. Rahman
Deposited On:07 Nov 2012 11:07
Last Modified:21 Jan 2015 15:59

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