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Int. J. Environ. Res. Public Health 2004, 1(2), 132-137; doi:10.3390/ijerph2004020132

Metal Ion Effect on BOD Exertion at Different Temperatures

* ,  and
School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology (Deemed University) Patiala, 147004, India
* Author to whom correspondence should be addressed.
Received: 25 July 2004 / Accepted: 26 August 2004 / Published: 30 September 2004
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The toxic effect of metal ions like chromium (Cr3+), cobalt (Co2+), nickel (Ni2+), copper (Cu2+), cadmium (Cd2+) and lead (Pb2+) on biochemical oxygen demand (BOD) of synthetic wastewater samples has been studied at different temperatures i.e., 15°C, 20°C, 25°C and 30°C. Experiments were conducted for BOD exertion in presence (10 ppm of each metal ion) and in the absence of metal ions at different temperatures. Transition metal ions like Cr3+, Co2+, Ni2+ and Cu2+ show an increase in relative percentage inhibition with increasing atomic number. BOD inhibition in presence of Cd2+ and Pb2+ is relatively large. The metal ions under study are found to be highly toxic to microbes.
Keywords: BOD; metal ion effect; temperature BOD; metal ion effect; temperature
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mittal, S.K.; Goel, S.; Sharma, A. Metal Ion Effect on BOD Exertion at Different Temperatures. Int. J. Environ. Res. Public Health 2004, 1, 132-137.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert