Canfor Pulp Limited Partnership

Northwood Pulp Mill

5353 Northwood Pulp Mill Road

Prince George, British Columbia, Canada



Existing recovery ESP is old and undersized for new emission standards.


Southern Environmental’s Solution:

Southern Environmental, Inc.  provided a new state-of-the-art Recovery ESP with POWER PLUS transformer technology, using SEI-ELEX electrodes.  The ESP is designed with a dry bottom conveyor system and heated shell.  The SEI design utilizing the high frequency transformers is cutting edge application for recovery boiler ESPs.  SEI has been on the forefront utilizing this technology in other applications since 2002.


Project Duration:

P.O. Received: 6/4/10

Materials delivered to site by: 2/28/11

Start-up: 10/1/11


Detailed Engineering in the following disciplines:




1/12 Physical Scale Model Study


Fabrication and Erection Services:

ESP Fabrication

Field Technical Support


Scope of Work:

SEI provided detailed engineering, material supply, fabrication, construction management and 1/12 physical model study, inlet flange to outlet flange, conveyor systems, slide plates to weather enclosure.  The ESP is a two chamber, five mechanical field (in direction of gas flow) recovery precipitator.


SEI provided a climate controlled building at the cold roof level that contains rapper controllers, PLCs, MCC equipment, PCAMS communication and drag scraper controls.


Guaranteed Outlet Emissions: 0.021 grains/dscf






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