Q-2, r. 35.3.01 - Regulation respecting manure anaerobic digestion projects eligible for the issuance of offset credits

Schedule Disposition versions

2023-12-28

Appendix D

(ss. 21 and 23)

Digestate storage and treatment factors

Table 1: CH4 conversion factors in various digestate storage systems

Digestate storage system S	CH4 conversion factor (MCFS)
Manure pit without crust (raw digestate or liquid phase)	0.20
Manure pit with crust (raw digestate)	0.13
Solid fraction (solid phase)	0.02
Solid fraction with addition of structuring materials (woodchips, straw, etc.) (solid phase)	0.02
Aerobic treatment (raw digestate or liquid phase)	0.00

Table 2: Volatile solid fraction extracted during separation of solid and liquid phases

Separation method for solid and liquid phases	Volatile solids fraction extracted from solid phase
Natural decantation	0.45
Fixed screen	0.17
Vibrating screen	0.15
Screw press	0.25
Centrifugal decanter	0.50
Rotating drum	0.25
Belt press or belt screen	0.50

M.O. 2023-1010, App. D.

Not in force

Appendix D

(ss. 21 and 23)

Digestate storage and treatment factors

Table 1: CH4 conversion factors in various digestate storage systems

Digestate storage system S	CH4 conversion factor (MCFS)
Manure pit without crust (raw digestate or liquid phase)	0.20
Manure pit with crust (raw digestate)	0.13
Solid fraction (solid phase)	0.02
Solid fraction with addition of structuring materials (woodchips, straw, etc.) (solid phase)	0.02
Aerobic treatment (raw digestate or liquid phase)	0.00

Table 2: Volatile solid fraction extracted during separation of solid and liquid phases

Separation method for solid and liquid phases	Volatile solids fraction extracted from solid phase
Natural decantation	0.45
Fixed screen	0.17
Vibrating screen	0.15
Screw press	0.25
Centrifugal decanter	0.50
Rotating drum	0.25
Belt press or belt screen	0.50

M.O. 2023-1010, App. D.