...
1. The BOD of the blanks (no nutrient source) = DOFinal - DOInitial
2. The BOD of the nutrient added samples = (DOFinal - DOInitial) time dilution factor per 300ml
* 300 ml is based on the volume contained in BOD bottles
The BOD of the sample and standards are calculated by subtracting the final DO from the initial DO and multiplying this factor by the dilution factor. The final value is determined by subtracting out the BOD for the blank from the BOD that has been nutrient enriched.
References
Erlich Industrial Development. D. O. theory. http://www.eidusa.com/Theory_DO.htm
Eutech Instruments, 1997. Introduction to Dissolved Oxygen. http://www.eutechinst.com/techtips/tech-tips15.htm
Fraden J. Handbook of Modern Sensors. New York: AIP Press/Springer; 2004. p. 508-510.
Hanna instruments. Dissolved Oxygen and BOD meter, HI98186. http://www.hannainst.com/usa/prods2.cfm?ProdCode=HI%2098186&id=004002
Regtien P. Measurement Science For Engineers. London: Kogan Page Science; 2004. p. 257-263.
YSI, 2009. The Dissolved Oxygen Handbook. https://www.fondriest.com/pdf/ysi_do_handbook.pdf
| Info | ||
|---|---|---|
| ||
Eila Myllylä, Chi-En Shan, Olga Gerasimenko, Judit Nyári & Nhat Nguyen |