The Arizona Department of Environmental Quality (ADEQ) is taking comment until April 12 on a proposed Air Quality Control Significant Permit Revision for Novo BioPower LLC for a biomass-fired power plant located at Snowflake in Navajo County, Arizona.
Said a permit document: “This Class I, Title V significant permit revision for Novo BioPower, LLC (the Permittee) removes Conditions I.B.1.a and I.B.c.(1) of Attachment ‘B’ of the operating permit. Condition I.B.1.a limits the facility to a maximum heat input of 2,971,777 MMBtu based on all fuels for any consecutive 12 month period. Condition I.B.1.c.(1) limits the facility to a maximum heat input of 1,033,000 MMBtu when firing wood fiber as fuel. Pollutant emission limits for NOX, CO, SO2, and HCl are all based on a rolling 365 day ton per year limits monitored by (Continuous Emission Monitoring Systems) CEMS to ensure compliance. The PM emission limit is based on a pound per MMBtu basis. The total MMBtu of all fuels fired will still continue to be monitored and recorded. Consequently, removing these conditions does not have any affect on boiler emissions or ensuring compliance with these limits.”
The Novo BioPower facility is fueled by waste wood and bark from nearby forest salvage operations, other sources of unprocessed wood waste, and small portions of paper fiber from the previous Catalyst paper mill. The plant has a nominal capacity of 24 MW, and consists of an approximate 340 Million British thermal unit (MMBtu) boiler, steam turbine unit, a cooling tower, and wood handling equipment.