Speciation of fast and slow biochemical oxygen demand

Zainudin, Zaki and Abdul Rahman, Norazah and Abdullah, Norizan (2011) Speciation of fast and slow biochemical oxygen demand. In: Recent advances in bioenvironmental engineering. IIUM Press, Kuala Lumpur, pp. 154-173. ISBN 9789670225852

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Abstract

Biochemical Oxygen Demand (BOD) is a critical constituent used to measure the strength of organic pollution in water. Although new methodologies for organic quantification such as the Chemical Oxygen Demand (COD), Total Organic Carbon (TOC) tests and respirometry methodology have been introduced, the BOD method for determining organic strength is still preferred by the environmental community, despite its sometimes random and arbitrary results. The BOD test procedure dates back to early part of the 20th century by measuring dissolved oxygen (DO) depletion within a five-day period at a designated incubation temperature (Zainudin, 2008). The DO depletion is attributed to oxygen consumption (BOD) by microbial organisms present in the water column during the stabilization of biodegradable organic matter. This aspect of including the microbial population in the test is a feature not addressed in other modern methods for organic quantification (save perhaps respirometry) and is of significant importance for ambient water quality preservation proceedings, such as in the use of water quality models.

Item Type:	Book Chapter
Additional Information:	6601/3382
Uncontrolled Keywords:	BOD, Biochemical Oxygen Demand, Pollution,Organic
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA170 Environmental engineering. Sustainable engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC401 River, lake, and water-supply engineering (General) T Technology > TD Environmental technology. Sanitary engineering > TD169 Environmental protection
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Assoc. Prof. Ir. Dr. Zaki Zainudin
Date Deposited:	25 Nov 2011 09:00
Last Modified:	24 Sep 2012 11:37
URI:	http://irep.iium.edu.my/id/eprint/3382

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