Wetlands Module Parameters II

Parameters for the Constructed Wetland CW2D and CWM1 Modules are entered in the Constructed Wetland Model Parameters I and Constructed Wetland Parameters II dialog windows. Detailed description of input parameters for both modules is given below.

1. Parameters for the CW2D module are given in the following window:

Temperature dependences, stoichiometric parameters, composition parameters and parameters describing oxygen transfer in the CW2D biokinetic model [Langergraber and Šimunek, 2005].

Parameter	Description [unit]	Value
Temperature dependences (activation energy [J/mol] for Arrhenius equation)
Tdep_het	activation energy for processes caused by XH [J/mol]	47800
Tdep_aut	activation energy for processes caused by XA [J/mol]	69000
Tdep_Kh	activation energy Hydrolyses [J/mol]	28000
Tdep_KX	activation energy factor KX for hydrolyses [J/mol]	-53000
Tdep_KNHA	activation energy for factor KNHA for nitrification [J/mol]	-160000
Stoichiometric parameters
fHyd,CI	production of CI in hydrolysis	0.0
fBM,CR	fraction of CR generated in biomass lysis	0.1
fBM,CI	fraction of CI generated in biomass lysis	0.02
YHet	yield coefficient for XH	0.63
YANs	yield coefficient for XANs	0.24
YANb	yield coefficient for XANb	0.24
Composition parameters
iN,CR	N content of CR [g N/g CODCR]	0.03
iN,CS	N content of CS [g N/g CODCS]	0.04
iN,CI	N content of CI [g N/g CODCI]	0.01
iN,BM	N content of biomass [g N/g CODBM]	0.07
iP,CR	P content of CR [g P/g CODCR]	0.01
iP,CS	P content of CS [g P/g CODCS]	0.01
iP,CI	P content of CI [g P/g CODCI]	0.01
iP,BM	P content of biomass [g P/g CODBM]	0.02
Oxygen
cO2_sat_20	saturation concentration of oxygen [g/m³]	9.18
Tdep_cO2_sat	activation energy for saturation concentration of oxygen [J/mol]	-15000
rate_O2	re-aeration rate [1/d]	240

2. Parameters for the CWM1 module are given in the following window:

The Constructed Wetland Model (CWM1) Parameter II dialog window.

Temperature dependences, stoichiometric parameters, composition parameters and parameters describing oxygen transfer in the CWM1 biokinetic model [Langergraber et al., 2009].

Parameter	Description [unit]			Value
Temperature dependences (activation energy [J/mol] for Arrhenius equation)
Tdep_HyKh		activation energy Hydrolyses [J/mol]		28000
Tdep_HyKX		activation energy factor KX for hydrolyses [J/mol]		-54400
Tdep_H		activation energy for processes caused by XH [J/mol]		47800
Tdep_A		activation energy for processes caused by XA [J/mol]		75800
Tdep_KNHA		activation energy for factor KNHA for nitrification [J/mol]		-160000
Tdep_mueFB		activation energy for XFB growth [J/mol]		47800
Tdep_bFB		activation energy for XFB lysis [J/mol]		0
Tdep_AMB		activation energy for processes caused by XAMB [J/mol]		0
Tdep_ASRB		activation energy for processes caused by XASRB [J/mol]		0
Tdep_SOB		activation energy for processes caused by XSOB [J/mol]		0
Stoichiometric parameters
fHyd,SI			production of SI in hydrolysis		0.0
fBM,SF			fraction of SF generated in biomass lysis		0.05
fBM,XI			fraction of XI generated in biomass lysis		0.1
YH			yield coefficient for XH		0.63
YA			yield coefficient for XA		0.24
YFB			yield coefficient for XFB		0.053
YAMB			yield coefficient for XAMB		0.032
YASRB			yield coefficient for XASRB		0.05
YSOB			yield coefficient for XSOB		0.12
Composition parameters
iN,SF			N content of SF [g N/g CODSF]		0.03
iN,SI			N content of SI [g N/g CODSI]		0.01
iN,XS			N content of XS [g N/g CODXS]		0.04
iN,XI			N content of XI [g N/g CODXI]		0.03
iN,BM			N content of biomass [g N/g CODBM]		0.07
Oxygen
cO2_sat_20			saturation concentration of oxygen [g/m³]		9.18
Tdep_cO2_sat			activation energy for saturation concentration of oxygen [J/mol]		-15000
rate_O2			re-aeration rate [1/d]		240