Table 3 Lower bound and upper bound of \({k}_{C{H}_{4}}\) (y−1) and \({L}_{0}\) (m3 CH4 t−1) and periodic waste fraction (-) for optimizing scenarios of CH4 modeling, (a) FDR and SDR, (b) food, yard, paper, and wood
(a) Optimization variables | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \(PWF\_FDR\) | ||
|---|---|---|---|---|---|---|---|
Waste type/period | FDR | FDR | SDR | SDR | 1 | 2 | 3 |
Default | |||||||
 Sc1 & Sc 4 | 0.70 | 62.86 | 0.03 | 62.86 | 0.10 | – | – |
 Sc2, Sc 3, Sc 5 & Sc 6 | 0.60 | 0.30 | |||||
Lower bound | |||||||
 Sc1 & Sc 4 | 0.10 | 12.00 | 0.03 | 15.00 | 0.10 | – | – |
 Sc2, Sc 3, Sc 5 & Sc 6 | 0.30 | 0.30 | |||||
Upper bound | |||||||
 Sc1 & Sc 4 | 0.70 | 300.70 | 0.20 | 387.00 | 0.40 | – | – |
 Sc2, Sc 3, Sc 5 & Sc 6 | 0.60 | 0.60 | |||||
(b) Optimization variables | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \({k}_{C{H}_{4}}\) | \({L}_{0}\) | \(PWF\_food\) | \(PWF\_yard\) | \(PWF\_paper\) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Waste type/period | Food | Food | Yard | Yard | Paper | Paper | Wood | Wood | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 |
Default | |||||||||||||||||
 Sc7 & Sc 10 | 0.70 | 62.86 | 0.15 | 62.86 | 0.03 | 62.86 | 0.03 | 62.86 | 0.10 | 0.10 | 0.10 | – | – | – | – | – | – |
 Sc8, Sc 9, Sc 11 & Sc 12 | 0.30 | 0.30 | 0.30 | 0.15 | 0.15 | 0.15 | |||||||||||
Lower bound | |||||||||||||||||
 Sc7 & Sc 10 | 0.17 | 12.00 | 0.10 | 21.00 | 0.06 | 57.00 | 0.03 | 15.00 | 0.10 | 0.10 | 0.10 | – | – | – | – | – | – |
 Sc8, Sc 9, Sc 11 & Sc 12 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | |||||||||||
Upper bound | |||||||||||||||||
 Sc7 & Sc 10 | 0.70 | 300.70 | 0.20 | 211.00 | 0.09 | 387.00 | 0.05 | 241.00 | 0.40 | 0.40 | 0.40 | – | – | – | – | – | – |
 Sc8, Sc 9, Sc 11 & Sc 12 | 0.20 | 0.20 | 0.20 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | ||||||||