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Q-2, r. 27 - Regulation respecting pulp and paper mills

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SCHEDULE IV
(s. 57)
SULPHATE PULP MILL EMISSION STANDARDS
_____________________________________________________________________________________
| |
| Standards applicable where | Standards applicable where
|operation of process equipment|operation of process equipment
|started before 22 October 1992|started after 21 October 1992
_______________________|______________________________|______________________________
| | | |
Process equipment | Particles | Total reduced | Particles | Total reduced
| | sulphur | | sulphur
| | compounds | | compounds
_______________________|______________|_______________|______________|_______________
| | | |
Recovery furnace | 200 mg/m3 | 20 ppm, except| 100 mg/m3 | 5 ppm
| |for furnace of | |
| | a mill built | |
| | after 12 | |
| | September | |
| |1979, for which| |
| |the stantard is| |
| | 5 ppm | |
_______________________|______________|_______________|______________|_______________
| | | |
Lime kiln | 340 mg/m3 | 10 ppm | 150 mg/m3 | 10 ppm
_______________________|______________|_______________|______________|_______________
| | | |
Dissolving tank | 165 g/t | | 100 g/t | 16 g/t
| dry solids | | dry solids | dry solids
| in the liquor| | in the liquor| in the liquor
_______________________|______________|_______________|______________|_______________
| | | |
Cooking system, | | 10 ppm | 10 ppm
evaporation system, | | | |
condensate stripper | | | |
system and brown pulp | | | |
washing system | | | |
_______________________|______________|_______________|______________|_______________
Notes:
— The emission standards apply individually to all the emission points of process equipment;
— the brown pulp washing system may include the following sources:
- first stage of washing vent;
- knotter vent;
- foam tank;
- seal tank;
— the recovery furnace includes, where applicable, the direct contact evaporator;
— the concentrations of contaminants measured to verify compliance with emission standards expressed in mg/m3 are corrected to reference conditions, on a dry basis, and to 8% oxygen by volume;
— the concentrations of contaminants measured to verify compliance with the dissolving tank standards are expressed in grams per ton of dry solids contained in the black liquor incinerated in the recovery furnace;
— the concentrations of contaminants measured to verify compliance with emission standards expressed in ppm are calculated on a dry basis and corrected, in the case of a lime kiln, recovery furnace or any other system for treating total reduced sulphur compounds in fuel burning equipment or in an incinerator, to 8% oxygen by volume according to the following formula. In the case of an incinerator of the “regenerative” type, the correction is made to 18% oxygen by replacing the value 12.9 in the formula by 2.9;
E = Ea × (12.9 / (20.9 -A))
where
“E” is the corrected concentration;
“Ea” is the concentration on a dry basis without correction;
“A” is the percentage of oxygen on a dry basis in gases at the sampling site.
O.C. 808-2007, Sch. IV; O.C. 1230-2013, s. 1.
SCHEDULE IV
(s. 57)
SULPHATE PULP MILL EMISSION STANDARDS
_____________________________________________________________________________________
| |
| Standards applicable where | Standards applicable where
|operation of process equipment|operation of process equipment
|started before 22 October 1992|started after 21 October 1992
_______________________|______________________________|______________________________
| | | |
Process equipment | Particles | Total reduced | Particles | Total reduced
| | sulphur | | sulphur
| | compounds | | compounds
_______________________|______________|_______________|______________|_______________
| | | |
Recovery furnace | 200 mg/m3 | 20 ppm, except| 100 mg/m3 | 5 ppm
| |for furnace of | |
| | a mill built | |
| | after 12 | |
| | September | |
| |1979, for which| |
| |the stantard is| |
| | 5 ppm | |
_______________________|______________|_______________|______________|_______________
| | | |
Lime kiln | 340 mg/m3 | 10 ppm | 150 mg/m3 | 10 ppm
_______________________|______________|_______________|______________|_______________
| | | |
Dissolving tank | 165 g/t | | 100 g/t | 16 g/t
| dry solids | | dry solids | dry solids
| in the liquor| | in the liquor| in the liquor
_______________________|______________|_______________|______________|_______________
| | | |
Cooking system, | | 10 ppm | 10 ppm
evaporation system, | | | |
condensate stripper | | | |
system and brown pulp | | | |
washing system | | | |
_______________________|______________|_______________|______________|_______________
Notes:
— The emission standards apply individually to all the emission points of process equipment;
— the brown pulp washing system may include the following sources:
- first stage of washing vent;
- knotter vent;
- foam tank;
- seal tank;
— the recovery furnace includes, where applicable, the direct contact evaporator;
— the concentrations of contaminants measured to verify compliance with emission standards expressed in mg/m3 are corrected to reference conditions, on a dry basis, and to 8% oxygen by volume;
— the concentrations of contaminants measured to verify compliance with the dissolving tank standards are expressed in grams per ton of dry solids contained in the black liquor incinerated in the recovery furnace;
— the concentrations of contaminants measured to verify compliance with emission standards expressed in ppm are calculated on a dry basis and corrected, in the case of a lime kiln, recovery furnace or any other system for treating total reduced sulphur compounds in fuel burning equipment (Regulation respecting the quality of the atmosphere (chapter Q-2, r. 38) or in an incinerator, to 8% oxygen by volume according to the following formula. In the case of an incinerator of the “regenerative” type, the correction is made to 18% oxygen by replacing the value 12.9 in the formula by 2.9;
E = Ea × (12.9 / (20.9 -A))
where
“E” is the corrected concentration;
“Ea” is the concentration on a dry basis without correction;
“A” is the percentage of oxygen on a dry basis in gases at the sampling site.
O.C. 808-2007, Sch. IV.
© Gouvernement du Québec