biogas (version 1.8.0)

calcCOD: Calculate Oxygen Demand

Description

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

Usage

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’).

Value

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

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.

References

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

See Also

molMass, predBg

Examples

# NOT RUN {
  calcCOD("C6H12O6")

  calcCOD("CH3COOH")

  calcCOD("CH3CH2OH")

  calcCOD("CH4")

  calcCOD("ch4")

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