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Journal articles
Open Access
Aquasol: a new process to deink old newsprint, TAPPI JOURNAL, August 1999, Vol. 82(8)

Aquasol: a new process to deink old newsprint, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Retention of precipitated calcium carbonate in old corrugated container furnishes, TAPPI JOURNAL, August 1999, Vol. 82(8)

Retention of precipitated calcium carbonate in old corrugated container furnishes, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
The inhibition of migration of contaminants from paper into packaged foods, TAPPI JOURNAL, August 1999, Vol. 82(8)

The inhibition of migration of contaminants from paper into packaged foods, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Relationship between phenol-formaldehyde resin chemistry and paper saturation, TAPPI JOURNAL, August 1999, Vol. 82(8)

Relationship between phenol-formaldehyde resin chemistry and paper saturation, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Biofiltration to reduce voc and hap emissions in the board industry, TAPPI JOURNAL, August 1999, Vol. 82(8)

Biofiltration to reduce voc and hap emissions in the board industry, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Evaluation of internal thermophilic biotreatment as a strategy in tmp mill closure, TAPPI JOURNAL, August 1999, Vol. 82(8)

Evaluation of internal thermophilic biotreatment as a strategy in tmp mill closure, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Wet reinforcement of paper with high-molecular-weight multifunctional carboxylic acid, TAPPI JOURNAL, August 1999, Vol. 82(8)

Wet reinforcement of paper with high-molecular-weight multifunctional carboxylic acid, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Some mechanistic insights for using the streaming current detector to measure wet-end charge, TAPPI JOURNAL, August 1999, Vol. 82(8)

Some mechanistic insights for using the streaming current detector to measure wet-end charge, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
New laboratory test to characterize immobilization and dewatering of paper coating colors, TAPPI JOURNAL, August 1999, Vol. 82(8)

New laboratory test to characterize immobilization and dewatering of paper coating colors, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Magazine articles
Open Access
Effects of agitator blade scaling on mixing in dissolving tanks, TAPPI Journal April 2022

ABSTRACT: Hard calcium carbonate scale often forms on the agitators in smelt dissolving tanks. The effects of this scale on mixing are not well understood. While mixing in tanks has often been modeled in the literature, there have been no studies involving agitator scaling. To better understand the impact of agitator scaling on hydrodynamics and tank concentrations, a steady state, three-dimensional (3D) model has been developed for a smelt dissolving tank at a kraft pulp mill. In this work, four cases are compared: an agitator with no scaling, mild scaling, moderate scaling, and extreme scaling. The extreme scaling case is representative of scale buildup on a dissolving tank agitator that was significant enough that the agitator had to be stopped and cleaned. The reduction in the agitator fluid jet velocity is relatively small for the mild and moderate scaling cases, but it becomes more significant for the extreme scaling case, for which the results indicate that the mixing of the smelt with the weak wash is likely poor and that there would thus be a risk of smelt pooling.

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