calcCOD function

Calculate Oxygen Demand

calcCOD is used to calculate the oxygen demand (calculated oxygen demand , or COD' as described by Rittmann and McCarty (2001)) of a compound.

calcCOD(form)

Arguments

• form: a chemical formula, as a character vector, e.g., "C6H12O6" for glucose or "CH3COOH" for acetic acid, or c("C6H12O6", "CH3COOH") for both at once. Not case-sensitive for single letter elements (see Details ).

Details

Based on Eqs. (2.2) and (2.3) in Rittmann and McCarty (2001) (p 128), but using molar mass calculated with molMass. calcCOD is not case-sensitive as long as all elements have single letter abbreviations. The function is vectorized.

Returns

A numeric vector with length equal to length of form with COD' in g of oxygen per g of compound.

References

Rittmann, B., McCarty, P. 2001 Environmental Biotechnology. McGraw-Hill.

Author(s)

Sasha D. Hafner and Charlotte Rennuit

See Also

molMass, predBg

Examples

calcCOD("C6H12O6")

  calcCOD("CH3COOH")

  calcCOD("CH3CH2OH")

  calcCOD("CH4")

  calcCOD("ch4")

  calcCOD(c("C6H12O6", "CH3COOH", "CH3CH2OH"))