Journal of Food, Agriculture and Environment

Vol 7, Issue 1,2009
Online ISSN: 1459-0263
Print ISSN: 1459-0255

An assessment of selected methods in environmental pollution control


I.A. Oke 1*, J.A. Otun 2, D.B. Adie 2

Recieved Date: 2008-09-17, Accepted Date: 2008-12-28


BOD kinetic parameters are essential ingredients in the design and selections of biological treatment plants, indicating that accurate and reliable kinetics parameters are required. This paper presents a statistical evaluation and reliability of selected methods for parameters in BOD kinetics. Domestic-institutional wastewaters were collected weekly for three months. BODs at different days were determined using standard equipment and methods. The BOD for the first 5 days of each of the wastewater samples was used for the kinetic parameters determination using non-linear regression, least squares, Thomas, two points, Fujimoto, Rapid-ratio, logarithms difference and daily difference methods. Statistical evaluation (total error, coefficient of determination, ANOVA and model of selection criterion) and reliability estimation were carried out. Results of the study revealed that average total error for the non-linear regression, least squares, Thomas, Fujimoto, ratio, logarithms difference, two-points and daily difference methods were 16.68, 64.94, 82.38, 1036.25, 992.42, 18.13, 123.2 and 65.96 with MSC and reliability of 8.77 and 0.998; 6.33 and 0.976; 5.16 and 0.954; 0.60 and 0.584; 0.69 and 0.596; 8.40 and 0.997; 4.38 and 0.955; 5.67 and 0.977 respectively. It was concluded that non-linear regression, logarithms difference, least squares, Thomas and daily difference methods are valuable at higher confidence levels.


Wastewater, pollution control measures, BOD kinetic parameters, statistical evaluation

Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 1
Category: Environment
Pages: 186-191

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :