(Italics relate to Committee wide feedback/discussion. Underline indicates follow up)

1) Introductions: Irene Yaraskavitch, Paul Earl, Nancy Van Allen, Gary Brooks, Norm Liebergott, Mariana Gavrilini, Kirsten Maki, Chris Ho, Rodger Bernar, Dave Willis

Noted we have 7 suppliers, 2 consultants, 1 mill. Would like more mill representation. Suppliers do have vested interest in environmental issues but basic charter is for mill needs…

2) Previous Business

• A)US Regulations Presentation – State and mill specific issues are driving regulations mill-by-mill. Generally felt this will affect Canadian mills that sell to USA and is of value. Will poll the committee. If interest, Nancy to get info from Al Strang of Env Committee, and John Carey of CDN govt (related to direction they see CDN air and water regulation going). About 10 hands up for interest in this topic. Nancy to do some initial investigations for next meeting.

• B) Zero AOX in BC, ON. Not felt to be a real and current threat by the group. Keep on our radar screen. Politically charged area.

• C) ClO2 Emissions Monitoring – HSPP doing. Bowater, Thunder Bay has ordered for Bleach plant stacks. No specific action identified. Crofton sends in records to MOE. No immediate action required.

• D) Water Discharge Regulations and limits – Group interested in how Canadian Mills are doing re Bleach area M3/Tonne fresh and discharge, and water use as a function of receiving water flows. If Committee interested, research available info and commission a survey to fill in gaps. Low interest level from the main committee.

• E) Env Effect Monitoring – Worthwhile to get update on work here after the presentation in Fall, 98’. General support for quick update at Fall meeting, in subcommittee session. Jeff

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3) New Items

PAPRICAN – What is status of mill closure effort? Dave to check with Vic Uloth. Norm L to check with (who?). General support. (This may tie in with tech theme for next session, called washing/filtrate recycle- Dave W to follow up since I volunteered to help Rae with this session theme).

Presentation on new moving bed bioreactor and reverse osmosis installed at Irving, St John. 20 hands in support when presented. Don McCabe appears willing to do/have it done. Jeff check in with Don for tentative Fall 01 or Spring 02 timing.

Resin Acids/Sterols – Discussed impact on mill secondary treatment and resistance to oxidation. Gauge larger group interest. Did not seem to strike up interest in larger group.

New chemicals (i.e. PAA and molybdate catalyst) are being presented/considered. What is their toxicity? Norm suggested add toxicity info to bleach plant website. Jeff, you get to follow up on this item. No wild enthusiasm detected from the group.

• Contacted most regional sections

• Use PAPTAC protocol or TAPPI

• Post full Glossary

• No - PAPTAC is selling this item

• Email to all PAPTAC members?

• Spam…

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• Note in PAPTAC Quarterly

• TAPPI?

• Talking to Barbara van Lierop
• They are considering changes…
• Little response

• Update existing Protocol

• Need to resolve issues

• ? for PAA

• X for Enzyme

• T not for Trial, just unassigned

• Change ‘Unassigned’ to ‘*’

• ‘* Unassigned. May be used for experimental or trial chemical. Please define any new chemical or usage.’

• O stage Vs Eo stage

• Position or function
• Drop Definition 4
• Include example

• To Subscript or not to Subscript

• (ZD) or (DZ) or Dz or Zd

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• Update Glossary

• Seven years since last update
• Some changes proposed

• Email-out via website

• Break down to X pages/person
• Volunteers: Irene Yaraskavitch, Don McCabe, Murray Walters, Jean Bouchard, Dennis Owen

Members: R. Cunnington, D. Flater, N. Liebergott, S. Scott, M. Walters, D. Willis

1. Update on PAPTAC 2001 Pulp Bleaching Course

• 4 day course including mill visit to Western Pulp, Squamish
• To be held at the Sheraton Wall Centre in Vancouver
• October 15 to 18^th, 2001
• N. Liebergott is course leader
• 17 speakers lined up
• Need an advertising blitz

1. Computer Based Training (CBT)

• Do not convert full course for CBT
• Keep course interactive
• Use computer, if suitable, for reference material that is the copyright of PAPTAC or possibly for problem session

1. A new project was set up to produce a booklet or CD on "Frequently Asked Questions in Bleaching". M. Walters and R. Cunnington are to co-ordinate.

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4. Possible topics for future technical sessions include:

• Washing in oxygen delignification/bleaching and filtrate recycle schemes
• Energy reduction strategies
• Training
• Focus on the third bleaching stage
• Setting up Kappa factor control
• Management information systems

• Safe Handling of Bleaching Chemicals (Priority List)
  
• Fall 2000 - H₂O₂ - Stan Heimburger
• Spring 2001- MeOH - Van Waters & Rogers
• Fall 2001 - NaClO₃ - Sterling (Denis Owen to discuss with Sterling)
• Spring 2002 - SO₂ – Marsulex

• Safety Incidents
  
• Blank sheets are available from Dennis Owen or web site
• Thank you to individuals who have volunteered to discuss their incidents at past meetings.
• Request that individuals follow through with an anonymous incident report for web posting
• New incidents ??

• High Kappa Pulping + Oxygen Delignification vs. Pulping Only
  (Gord Homer, Tina Larson, Don McCabe, Chris Kanters, Gavin Baxter and Ted Tam)
  
• Gord will provide update on project status
• Project team will continue to look for lab studies and mill experiences in this area

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• Experiences with chemical removal and prevention of scale in the bleach plant
  (Doug Reid, Stan Heimburger, Jim Oei, Chris Ho, Irene Yaraskavitch)
  
• Presentations on calcium oxalate, barium sulfate and mill experiences made at
  Fall 2000 meeting
• Calcium carbonate presentation, by Chris Ho, scheduled for this meeting
• Project is now completed

• Benefits of MgSO₄ addition to O₂ delignification and peroxide-reinforced extraction stages
  (Chris Ho, Ted Tam, Lance Anderson, Jim Collins, Doug Reid)
  
• Chris has conducted a survey of MgSO₄ usage in Canadian mills
• Project team has gathered information on mill experiences in optimization
• Special guest speaker arranged for this meeting (Mariana Gavriliu- National Silicates)

• Oxidized White Liquor Use in the Bleach Plant
  
• Significant interest in this topic at Fall 2000 meeting
• New project team was formed (Tom Mullen - project leader, Gavin Baxter, Irene Yaraskavitch, Jay Chen)
• Overview on subject will be provided, by Tom, this meeting

page7

• Only 13 responses to the questionnaire, though some may have been lost when Dennis changed internet provider. If you haven't responded, do so. Dennis and his group will be contacting all missing mills one more time to solicit responses.

• Review of available technology completed in Fall '00. Further work to be done on effective use of sensors in control.

• 5 topics to be explored related to current technology and how it is applied for bleach plant control.
• Progress report in Fall '01

• Survey will be sent out in June and report given at Fall '01 meeting.

• Doug will be soliciting pulp samples from mills, please help out.

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• Steam consumption primarily.

• Better mill participation

• Mill papers bring mill personnel
• Mill personnel bring vendor personnel

• Better equipment

• Ensure compatibility
• All presentations on one computer
• Overhead & Slide projectors available

• Ask for presentations

• Email by Christmas
• Review for Protocol and commercialism
• Burn onto CD
• Provide instructions

• Should take pressure off presenters

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• Need more mill papers
• Committee should be more aggressive
• Vendors can do joint papers

• Date, Location and Agenda for Future Bleaching Committee Meetings
  
• Will be posted on our site approx. one month before meeting (assuming availability)
  
• Will be available on both public and private portions (i.e., you don’t need password)
  

• Automatic e-mail capability to anyone on the committee
  
• Use "Bleaching Committee Membership List" web page to send email to any other member
  
• Send a message/question to all committee members using "[email protected]"
• Must be on our current membership list
• sender is asked to send a summary of responses to all members on the committee

• Electronic Access to Previous Meeting Minutes

• Minutes will follow this format on web site
• Attendance list
• Subcommittee Meeting Minutes
• Business Meeting Minutes
• Technical Session Minutes
• Mill Problems Session
• Mill Opportunities Session
• Attachments

• Membership List -
• all pertinent information (phone, fax, email) on members
• will be updated only twice a year following our committee meetings
• Upcoming Conferences/Courses
• Safety Incidents Section
• Hyperlinks to Other Important Web Sites
• Bleaching Protocol
• Recognition Page for Donor Suppliers

• Hit Counters - Public and Private Sections
• to get feedback on users
  
• Buy/Sell Previously Owned Equipment Pages

• Minutes/Reports in Adobe Acrobat Format
  
• free reader available from web

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• Public Section

www.paptac.ca/bleach-g

• Private Section

www.paptac.ca/bleach

• Username - "bleachcom"
  
  
• Password - "brightenup"
  
  (Note - enter password and click box "Save this password in your password list")
  
• Effective June 1st, 2001

Subcommittee Meetings, PAPTAC, Bleach Committee Meeting Minutes, May 27-30, 2001.doc