Skip to main content

Table 4 Estimated model parameters of the utilized two-pool kinetic model (according to model C in Brule et al. [13])

From: Mixed silage of Elodea and wheat straw as a substrate for energy production in anaerobic digestion plants

 

Data

S

α

k F

k L

R 2

Sa

α a

R 2a

(mL g−1 VS)

(mL g− 1 VS)

(−)

(d− 1)

(d− 1)

(−)

(mL g− 1 VS)

(−)

(−)

ESC1

206

260

0.70

0.1263

0.0120

1.00

220

0.19

1.00

ESC2

166

161

0.50

0.1508

0.1506

0.99

180

0.30

0.98

ESG1

228

231

0.46

0.1095

0.1094

1.00

252

0.12

0.99

ESG2

224

275

0.73

0.1707

0.0113

1.00

238

0.40

1.00

EN

219

218

0.59

1.0899

0.1315

1.00

213

0.97

0.94

  1. aOptimized values (curve fitting) for fixed parameter values of kF = 0.3393 (d−1) and kL = 0.0780 (d−1), respectively. Fixed first-order reaction constants were calculated as the mean value of the individual kinetic parameters (kF and kL) over all experiments
  2. Data final experimental value of the discontinuous digestion test (according to VDI 4630 [12]), S estimated total methane potential (at infinite retention time), α ratio of rapidly degradable substrate to total degradable substrate, k F first-order reaction constant for rapidly degradable substrate components, k L first-order reaction constant for slowly degradable substrate components, R2 coefficient of determination