Welcome to Irving Pulp and Paper, Ltd'

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Welcome to Irving Pulp and Paper, Ltd.
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Irving Pulp Paper Market Kraft Pulp Hardwood
Softwood 1000 tons per day 380 employees
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I.P.P.s Environmental Approach

• Pollution Prevention, rather than pollution
  treatment
• Implemented both best available technologies and
  novel solutions to reduce discharges
• Reduce usage - chemical, energy
• Capture and Recycle process streams for Reuse in
  process
• Towards closure
• CAEAL certified lab

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Our Process - Brown Stock Washing and Screening
All our cooked pulp is well washed and screened.
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Our Process - Oxygen Delignification and Washing
The brown pulp is further delignified using
oxygen,and washed again.
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Our Process - Bleaching
The pulp is now whitened, using elemental
chlorine free chemicals.
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Our Process - Shipping
Our finished product is sent to our customers by
truck, rail or ship.
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Pollution Prevention Technologies at IPP
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Pollution Prevention

• Modifying the process so that less material
  enters the discharge streams.
• Recovering, recycling and removing material that
  otherwise would go to sewer.
• Pro-active approach
• More closure of mill processes.

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Key Technologies

• Environmental Improvement Projects
• Steam Stripper, High Solids Crystallizer
• Brown Stock Wash Presses, O2 delig
• Closed Screen Room
• POW Wash Presses
• Reverse Osmosis
• Oxygen Delignification - 2 stage
• Moving Bed Bio-Reactor

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Process Improvements

• Computer Control of Fiberline
• Advanced Control Package on Bleaching and
  Causticizing Process
• Enhanced Spill Recovery Systems
• Increased Pulp Storage
• Increased Liquor ( Process Chemical ) Storage

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Key Fiberline Processes

• Elemental chlorine free bleaching
• Enhanced brown stock washing
• Closed brown stock screen room
• Oxygen Delignification

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Best Available Technology - Brown Stock Washing

• Start up June 1996
• Recovers more lignin and spent cooking chemicals
  than conventional washers

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Best Available Technology - Closed Brown Stock
Screening

• Start up June 1996
• Together with improved washing, closing the
  screen room has reduced mill BOD by 4000 kg/day!

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Best Available Technology - Oxygen
Delignification

• Single stage start up in Oct 1996
• Removes more lignin
• Reduces mill BOD by 3000 kg/day!

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Best Available Technology - Elemental Chlorine
Free Bleaching

• Running 100 ECF pulp since April 1995
• Reduces mill AOX level to lt 0.5 kg/ton