The Ontario Ministry of Environment has finalized the
technology-based air pollution standard for pulp and paper mills
(the Standard) and a proposed guideline for large wood-fired
combustors (the Guideline). The new Standard and Guideline aim to
control air emissions of key contaminants including total reduced
sulphur, chlorine, PAHs, particulate and carbon monoxide.
Guideline for Control of Air Emissions from Large Wood-fired
Combustors– sets out updated technical requirements
for the design and operation of existing, modified and new
wood-fired combustors (with a heat input capacity of 3 megawatts or
greater). Both the Standard and the Guideline were posted to the
Environmental Registry on March 6, 2014. The deadline for comments
on the Guideline is May 5, 2014.
Pulp and Paper Industry Standard
The new Standard is a technical standard for facilities in the
pulp and paper sector that might not meet one or more of the
generic air standards due to unique technical or economic
limitations. Instead of making the air standard less stringent, O
Reg 419/05 allows facilities to exceed the air standard as long as
they work to reduce their air emissions with technology-based
solutions and best practices.
The new Standard
contains detailed requirements relating to the operation of 23
sources of contaminants (including digester and evaporator systems,
tank vents, combustors, wastewater treatment, air pollution control
equipment, lime kilns and thermal oxidizers)
provides for performance limits, assessment reports,
optimization updates, and testing and monitoring requirements.
The key contaminants for the pulp and paper sector include total
reduced sulphur compounds, chlorine dioxide, chlorine, chloroform,
benzo-a-pyrene (PAHs) and acrolein. The Standard also includes an
additional 52 contaminants for which representative facilities of
the sector were below the air standards or guidelines.
Any facility in the Pulp and Paper sector (that may or may not
meet the air standards) may apply to be registered under this
technology-based compliance approach. Some facilities may also
register under the technical standard for contaminants where they
meet the air standards. This allows them to be excluded from the
modelling requirements of O Reg 419/05 and reduce their regulatory
Proposed Guideline for Control of Air Emissions from Large
Wood-fired Combustors (A-13)
The proposed Guideline covers:
design criteria for residence time and temperature (for new
fuel management (for existing and new units)
combustion air requirements (for existing and new units)
air pollution control devices (for existing and new units)
tune-up of wood-fired combustors every two years.
The Guideline includes limits on carbon monoxide in flue gas and
in-stack limits on suspended particulate, nitrogen oxides, and
total dioxins, furans and dioxin-like PCBs.
These technical requirements represent the "minimum
expected requirements". The requirements will be considered as
conditions during the preparation of an Environmental Compliance
Approval (issued under s. 20.3 of the Environmental Protection
Act) or as part of an abatement or enforcement order.
The requirements will apply to applications for new combustors
received after July 1, 2014, and would be phased-in for existing
and significantly modified combustors over time (as set out in
Appendix A of the Guideline). Also, proponents of ECA applications
can request that the phasedin requirements become applicable at an
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