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

Section 81 Disposition versions

2012-09-01

81. The operator of a sulphate pulp mill must install, calibrate and maintain in working order

(1)  a sampling system to continuously measure and record the concentrations of total reduced sulphur compounds emitted into the atmosphere by the recovery furnace; the measurement scale of that sampling system must have a reading interval of not more than 20 ppm where the standard is 5 ppm and not more than 100 ppm where the standard is 20 ppm; the concentrations measured and recorded by the sampling system must correspond to those obtained by the total reduced sulphur compound measurement method used in the annual sampling;

(2)  a sampling system to continuously measure and record the percentage of oxygen by volume in the gases from the recovery furnace and the lime kiln; the measurement scale of that sampling system must have a reading interval of not more than 25% oxygen;

(3)  for the recovery furnace,

(a)  a sampling system to continuously measure and record the concentration of particles in the gases emitted into the atmosphere; the concentrations measured and recorded by the system must correspond to those obtained by the particle measurement method used in the annual sampling; or

(b)  a system to continuously measure and record the opacity according to the method described in Book 4 of the Guide d’échantillonnage à des fins d’analyses environnementales, published by the Centre d’expertise en analyse environnementale du Québec of the Ministère du Développement durable, de l’Environnement et des Parcs; the measurement scale of that sampling system must have a reading interval of not more than 70% opacity;

(4)  if the total reduced sulphur compounds are incinerated, a device to continuously measure and record the combustion temperature at the incineration point of the total reduced sulphur compounds; the device must be accurate within 1% of the temperature measured in degrees Celsius; and

(5)  for each wet scrubber that treats emissions from the lime kiln, the dissolving tank or the recovery furnace,

(a)  a device to continuously measure and record the load loss of gases through the scrubber using a differential pressure gauge accurate within 0.5 kPa; and

(b)  a device to continuously measure and record the pressure of the scrubbing liquid, installed on the liquid inlet pipe so as not to obstruct the flow; the device must be accurate within 10% of the nominal pressure in the inlet pipe.

O.C. 808-2007, s. 81.