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Journal articles
Stracel: A modern european mill in France, TAPPI JOURNAL, June 1997, Vol. 80(6)
Stracel: a modern european mill in france, TAPPI JOURNAL, June 1997, Vol. 80(6)
Journal articles
Reducing chlorinated organic compounds from bleached kraft mills through first stage substitution of chlorine dioxide for chlorine, TAPPI JOURNAL, June 1995, Vol. 78(6)
Reducing chlorinated organic compounds from bleached kraft mills through first stage substitution of chlorine dioxide for chlorine, TAPPI JOURNAL, June 1995, Vol. 78(6)
Journal articles
Investing in the future of your mill, TAPPI JOURNAL, July 2000, Vol. 83(7)
Investing in the future of your mill, TAPPI JOURNAL, July 2000, Vol. 83(7)
Journal articles
Dispersion of pulp slurries using carboxymethylcellulose, TAPPI JOURNAL, October 2000, Vol. 83(10)
Dispersion of pulp slurries using carboxymethylcellulose, TAPPI JOURNAL, October 2000, Vol. 83(10)
Journal articles
Magazine articles
Control of malodorous gases emission from wet-end white water with hydrogen peroxide, TAPPI Journal October 2021
ABSTRACT: White water is highly recycled in the papermaking process so that its quality is easily deteriorated, thus producing lots of malodorous gases that are extremely harmful to human health and the environment. In this paper, the effect of hydrogen peroxide (H2O2) on the control of malodorous gases released from white water was investigated. The results showed that the released amount of total volatile organic compounds (TVOC) decreased gradually with the increase of H2O2 dosage. Specifically, the TVOC emission reached the minimum as the H2O2 dosage was 1.5 mmol/L, and meanwhile, the hydrogen sulfide (H2S) and ammonia (NH3) were almost completely removed. It was also found that pH had little effect on the release of TVOC as H2O2 was added, but it evidently affect-ed the release of H2S and NH3. When the pH value of the white water was changed to 4.0 or 9.0, the emission of TVOC decreased slightly, while both H2S and NH3 were completely removed in both cases. The ferrous ions (Fe2+) and the copper ions (Cu2+) were found to promote the generation of hydroxyl radicals (HO•) out of H2O2, enhancing its inhibition on the release of malodorous gases from white water. The Fe2+/H2O2 system and Cu2+/H2O2 system exhibited similar efficiency in inhibiting the TVOC releasing, whereas the Cu2+/H2O2 system showed better perfor-mance in removing H2S and NH3.
Journal articles
A six-year review of the TAPPI research funding program, TAPPI JOURNAL, April 2000, Vol. 83(4)
A six-year review of the TAPPI research funding program, TAPPI JOURNAL, April 2000, Vol. 83(4)
Journal articles
Power Plant Optimization: Real-time, model-based power plant optimizer significantly reduces energy costs, December 1995 Tappi Journal [95Dec61.pdf]
Real-time, model-based power plant optimizer significantly reduces energy costs, TAPPI JOURNAL, December 1995, Vol. 78(12)
Journal articles
Magazine articles
Development of converging-diverging multi-jet nozzles for molten smelt shattering in kraft recovery boilers, TAPPI Journal March 2021
ABSTRACT: The effective shattering of molten smelt is highly desired in recovery boiler systems. Ideally, shatter jet nozzle designs should: i) generate high shattering energy; ii) create a wide coverage; and iii) minimize steam consumption. This study proposes a novel converging-diverging multi-jet nozzle design to achieve these goals. A laboratory setup was established, and the nozzle performance was evaluated by generating jet pressure profiles from the measurement of a pitot tube array. The results show that the shatter jet strength is greater with a large throat diameter, high inlet pressure, and a short distance between the nozzle exit and impingement position. Increasing the number of orifices generates a wider jet coverage, and the distance between the orifices should be limited to avoid the formation of a low-pressure region between the orifices. The study also demonstrates that an optimized converging-diverging multi-jet nozzle significantly outperformed a conventional shatter jet nozzle by achieving higher energy and wider coverage while consuming less steam.
Journal articles
Activated sludge treatment of tmp mill effluents part 1: effluent characterization and treatability study, TAPPI JOURNAL, November 1994, Vol. 77(11)
Activated sludge treatment of tmp mill effluents part 1: effluent characterization and treatability study, TAPPI JOURNAL, November 1994, Vol. 77(11)
Journal articles
1988 TAPPI Barcode Survey, TAPPI JOURNAL July 1989
1988 TAPPI Barcode Survey, TAPPI JOURNAL July 1989