1. Environmental Impacts ( chair: Jeff Tolan)

Members: Jeff Tolan, Gerry Pageau, Ron Fujino, Dave Willis, Peter Lau, Gord Homer, Ross Anderson, Dan Davies.

We reviewed the presentations for the roundtable later today.

1. Ross Anderson, presenting for Norm Liebergott, Overview
1. Gord Homer, Ozone bleaching
2. Dave Willis, Hydrogen peroxide
3. Dan Davies, European practices
4. Jeff Tolan, presenting for Zhi-hua Jiang, Paprican research

Nancy van Allen has committed to presenting a review of US regulations at the spring meeting. The group discussed the possibility of a roundtable on world-wide regulations. Jeff Tolan will approach Kirsten Vice, Neil McCubbin, or some other expert to be the anchor speaker. This can be followed by Nancy and also Gord Homer and Dan Davies, describing European regulations.

Members: Dan Davies, Jeff Bennet

1. Teaching Bleaching ( chair: Rae Cunnington )

Members: Stuart Scott, Peter Gleadow, Jeff Bennett, Doug Pryke, Murray Walters, Steve Haynes, Rae Cunnington.

1. The two breakfast technical sessions held at the IPBC in Halifax in June, 2000 were well attended (over 100 participants). PAPTAC and Richard Berry, the conference co-chairman, passed on favourable comments that they had received. Thanks go out to the members of the bleaching committee who participated in these sessions. The only negative issue relates to the cost PAPTAC charged for these breakfast sessions of $ 40. Comments received indicate that if there has to be a charge, then it should be part of the registration fee. PAPTAC have asked whether we could do it again if the opportunity arises. The answer is yes.
2. The abbreviated (3 1/2 day) pulp bleaching course was given in Miramichi in October, 2000. There were 25 students. Norm Liebergott was the course leader. Final reviews by students have not been received yet, but there was some initial indication at the course that the material presented was "above their heads". Follow up with PAPTAC is required (Rae Cunnington). Suggestions were generated today as to how the course could be modified. These suggestions will be conveyed to PAPTAC etc.
3. PAPTAC’s professional development committee has concerns of a "relevance gap" developing within mills because of the inability of people to attend traditional courses, when they likely need to have the extra education. They asked for input on four possible suggestions:

• Carry on with courses the way we have been doing, i.e. maintain status quo.
• Take an active role in converting courses like the bleaching course to lever the best computer based training and delivery methods available today, which would first supplement and potentially replace the current courses.
• Move strongly to adopt the best computer based training and delivery methods as the PRIMARY mechanism for new course development.
• Move strongly to adopting short course methodology, typically one-day courses.

Our sub-committee concluded at this meeting that:

• Some computer based training would be desirable, such as CD ROM’s for full reference material, but we should continue to offer the 31/2 or 5 day course every two to three years because of the interaction and ability to meet experts face to face.
• We should be developing one day courses on bleaching technology for giving at mill sites or tagging on to local branch meetings.
• The material presented at the 3 1/2 or 5 day course needs to modified to suit the audience requirements.

1. The full bleaching committee wants to continue plans to hold a 3 1/2 or 5 day bleaching course in the west in 2001. A show of hands indicated that 25 to 30 people present would send a representative to this course. Vancouver in October, 2001 was suggested. Early confirmation and more advertising by PAPTAC is critical. Effort should still be placed on modifying the course.
2. Effort should still be expended in preparing material for a one day bleaching course.

6. Topics for upcoming technical sessions at bleaching committee meetings include:

• Second bleaching stage with all its variants.
• D₁ stage best practices.
• Setting up Kappa Factor control.
• Management information systems, e.g. what is displayed on a daily basis and how is this information best used.

Rae Cunnington has agreed to organise the session, focusing primarily on the second bleaching stage, with help from sub-committee members, for the Marathon meeting in May 2001.

Members: Don McCabe, Ralph Lunn, Steve Haynes, Jim Collins, Stan Heimberger, Jay Chen, Ted Tam, Chris Ho, Dennis Owen, Todd Johnson, Ross Stacey, Cam Bleackley, Laurier Morrisete, Gord Scott, Ted Tunstall, Erik Tremblay, Ralph MacDonald, Eric Yee, Jeff Dyck, Tina Larson, Jim Oei, Burton Branch, Guy Normandeau, Marco Solinas, Gavin Baxter, Irene Yaraskavitch.

Safe Handling of Bleaching Chemicals

- Blank sheets are available from Dennis Owen or web site

- Four new incidents posted on web site:

- H₂O₂ spill

- Mathieson generator dome explosion

- Mathieson generator titanium corrosion

- Solvay generator explosion

- 5 new incidents reports this meeting and will be posted ion the web

High Kappa Pulping + Oxygen Delignificatio vs. Pulping Only ( Gord Homer, Brian Roy Chris Kanters)

- A number of mill people were added to this team ( Tina Larson, Don McCabe, Gavin Baxter, Ted Tam)

Scale removal in bleach plant ( Doug Reid, Stan Heimburger, Jim Oei, Chris Ho, Irene Yaraskavitch)

- Calcium Oxalate: Stan

- Mill experiences with scaling: Jim, Tina, Ralph

- Chris Ho updated the MgSO4 usage from mill survey conducted this spring

- New recruits to this team were added.

The Bleaching Equipment Subcommittee has the following projects on the go:

1. FRP Inspection and Repair – Dennis Owen, Murray Walters, Stuart Scott

Project culminated in presentation by Craig Reid and several mill people. This project is now complete.

ClO2 Analysers – Dennis Owen, Cam Bleakly, Gerry Pageau, Peter Lau, Eric Yee

New working group set up at this meeting, report expected spring or fall 2001.

pH Probes – Marco Solinas, Eric Yee, Ted Tam, Jim Oei, Ralph Lunn

New working group set up at this meeting, report expected spring or fall 2001.

Other sensors (flow, level, conductivity, residual H2O2) were considered and a show of hands taken to decide on pH and ClO2 analysers for 2001.

A preliminary scope has been outlined and reviewed at this meeting. Work will be assigned and hopefully a preliminary report will be available in Spring 2001. This project covers a lot of ground and will probably extend over a few meeting at least. Preliminary scope should be in the minutes.

Survey will be short and done by email. Expect to have a report for the spring meeting.

5. Cost Reduction Ideas - Gerry Ferweda, Ted Tam, Stuart Scott

Project targeted at the organisation and facilitation of the distribution of low cost, high payback initiatives between mills. It will be kicked off by email before the spring meeting.

The subcommittee has also committed to organise a presentation at each meeting on the highlights, successes and failures, of a mill’s safety program. The host mill will be the first choice for the presentation.

Other topics of discussion included the possibility of including Mixing Technology in a future technical session, and on just how is this subcommittee thing supposed to work anyway.

Members: Dan Davies, Jean Bouchard, Tom Mullen

1. Technical papers selected for the Bleaching session

There was 6 papers selected and they will be presented in one session on Wednesday morning, January 31, 2001. We decide to pursue the Wine Glasses tradition for the speakers. Dan Davies will take care of that. The papers are listed below:

1. Rewatkar, V.B.; Kerekes, RJ. and Bennington, C.P.J. "The use of temperature profiling to measure mixing quality in pulp bleaching operations"
2. Ratnieks, E.; Zanchin, R.A.; Pérez Pinto, R.; Venture, J.W.; da Silveira, P.R.P.; Dias, J.M.; Hepp, C.L. and Sauer, M.J. "Acid stage improves selectivity and production – first mill-scale report from an eucalyptus market pulp line"
3. Pan, G.X. and Paziuk, A. "An Insight into the Behavior of Aspen CTMP in Peroxide Bleaching"
4. Jäkärä, J.; Parén, A.; Autio, P.; Hukkanen, P. and Anderson, R. "The effect of peracetic acid treatment of bleached kraft pulp in fine paper production"
5. Perala, J. and Hébert, G. "Bleachery controls upgrade project at Fraser Papers Inc."
6. Ni, Y. and Duncan, R. "Addition of H₂O₂ to a methanol-based ClO₂ generator to decrease Cl₂ emission from it stack gas"

1. Howard Rapson Award

The award will be presented at the opening of our morning session by J. Bouchard. We need to check if PAPTAC will provide plaques for all the authors and if they take charge of the official invitation.

The jury for the 2001 award will operate under the same mode and criteria than last year. Luc Tremblay and Dave Willis have already indicate their interest as being supplier’s representative in the jury. Members for Research and Mill will be selected by J.B.

2. Roundtable on scaling problem in bleach plants (in coll. with Bleaching Chemicals sub-comm.)

Organiser-Moderator: Jim Oei, Western Pulp, Squamish

Participants: Stan Heimburger – Ca-oxalate

Members of the committee who won’t attend the Annual meeting are encouraged to send their questions/comments to either Jim Oei or J. Bouchard.

Tina has agreed to prepare a letter to be sent to mill managers in order to convince them to let the participants attend the meeting

( Presentation at end of minutes )

E-mail capability is available to anyone on the committee. You can send e-mails to any committee member using the membership page. All future known meeting are posted. The agenda for future meetings will be posted one month before meeting and will be available to both public and private sections.

Minutes from previous meetings and attachments are available.

Future conferences, date and locations will be posted.

Hyperlinks to key industries ( P&P Companies, Suppliers, Engineering, Industry associations, Academic Institutions and Analytical Services ) are available.

A Bleaching Protocol Section and an Electronic abstract submission for the annual meeting will now be available to the public section.

Other features currently available is the updated membership list, a safety incident section, and a listing of relevant upcoming courses.

New features that have been recently been added is the Bleaching Protocol page and a French version of the Public portion of the web site.

New features that will be added will be a recognition page to contributing suppliers who provide financial support to the committee, a hit counter to get feedback on users and a used equipment page.