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TAPPI Journal Summaries, Paper360º November/December 2018
TAPPI Journal Summaries, Paper360º November/December 2018
Journal articles
Magazine articles
Do You Need to Improve Your Mill’s Preventive Maintenance/Es
Do You Need to Improve Your Mill’s Preventive Maintenance/Essential Care and Condition Monitoring Process?, Paper360º November/December 2018
Journal articles
Magazine articles
A novel unit operation to remove hydrophobic contaminants, TAPPI Journal April 2020
ABSTRACT: For mills making paper with recovered fiber, removal of hydrophobic contaminants is essential for trouble-free operation of paper machines. Significant cost savings on paper machine operation can be achieved by reducing deposits, which results in better quality, reduced downtime, increased fiber yield, and reduced energy consumption. Bubble nucleation separation (BNS) is a relatively new process for removing hydrophobic particles. When vacuum is applied to a slurry, dissolved gas bubbles nucleate on hydrophobic particles and drag them to the surface for easy removal. We constructed a 16-L batch unit to evaluate the effect of operating parameters on removal of hydrophobic particles, using statistical design of experiments. These results were used to guide our design of a 16-L continuous unit. We tested this unit on laboratory and mill samples. The removal of 60%•80% of hydrophobic particles was achieved with a low reject rate of < 2%.Following on this success, we built a 200-L pilot unit and tested it in our pilot plant. With promising results there, we installed the pilot unit at a commercial paper recycling mill. Over the course of several mill trials, we showed that it was possible to remove a considerable amount of suspended solids from paper machine white water with less than 2% rejects. Unfortunately, due to the unit only treating 50 L/min and the mill flow being 12000 L/min, we were not able treat a sufficient portion of the white water to know whether a large-scale implementation of BNS would improve paper machine runnability.
Journal articles
Magazine articles
RISI's North American CEO of the Year, Paper360º November/De
RISI's North American CEO of the Year, Paper360º November/December 2016
Journal articles
Magazine articles
Nonwood Fiber: Growth and Opportunity, Paper360º November/D
Nonwood Fiber: Growth and Opportunity, Paper360º November/December 2016
Journal articles
Magazine articles
The Next-Generation QCS, Paper360º November/December 2016
The Next-Generation QCS, Paper360º November/December 2016
Journal articles
Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007
Upgrading OCC and Recycled Liner Pulps by Medium-Consistency Ozone Treatment, TAPPI JOURNAL, February 2007
Journal articles
Trust the Eyes and the Ears of the Plant with ODR, Frontline Focus, Volume 3, Issue 2
Frontline Focus, February 2007
Journal articles
Confined Spaces, Dangerous Places, Frontline Focus, Volume 3, Issue 4
Frontline Focus, April 2007
Journal articles
The Safety Myth - Part 1, Frontline Focus, Volume 3, Issue 8
Frontline Focus, August 2007