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Conference papers
Reducing Water System Solids Loading •Disc Filter Optimizati
Reducing Water System Solids Loading •Disc Filter Optimization, PaperCon 2017
Conference papers
Air-laid Rando web formation and its capability for differen
Air-laid Rando web formation and its capability for different applications, PaperCon 2017
Conference papers
GLOBAL LIFE CYCLE ASSESSMENT OF COTTON, PaperCon 2017
GLOBAL LIFE CYCLE ASSESSMENT OF COTTON, PaperCon 2017
Conference papers
Formaldehyde reduction in binders used in Nonwovens and Text
Formaldehyde reduction in binders used in Nonwovens and Textile products, PaperCon 2017
Conference papers
The Use of Hemp Fibers in Nonwoven Wipes, PaperCon 2017
The Use of Hemp Fibers in Nonwoven Wipes, PaperCon 2017
Magazine articles
1989 Finishing and converting conference sessions generate interest, TAPPI JOURNAL, January 1990, Vol. 73(1)
1989 Finishing and converting conference sessions generate interest, TAPPI JOURNAL, January 1990, Vol. 73(1)
Journal articles
Polymers, laminations and coatings conference, TAPPI JOURNAL, January 1990, Vol. 73(1)
Polymers, laminations and coatings conference, TAPPI JOURNAL, January 1990, Vol. 73(1)
Journal articles
New trends in deinking technology removing difficult inks from wastepaper, TAPPI JOURNAL, February 1991, Vol. 74(2)
New trends in deinking technology removing difficult inks from wastepaper, TAPPI JOURNAL, February 1991, Vol. 74(2)
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.
Conference papers
Coating Operations Success Stories, 18PaperCon
Coating Operations Success Stories, 18PaperCon