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Creating a Lignin Culture, Paper360º March/April 2018

Creating a Lignin Culture, Paper360º March/April 2018

Data Use in Mills: A Supplier Survey, Paper360º March/April

Data Use in Mills: A Supplier Survey, Paper360º March/April 2018

TAPPI News, Paper360º July/August 2018

TAPPI News, Paper360º July/August 2018

Slave Lake Pulp Generates Biogas, Saves Money, Paper360º November/December 2019

Slave Lake Pulp Generates Biogas, Saves Money, Paper360º November/December 2019

Over the Wire, Paper360º November/December 2019

Over the Wire, Paper360º November/December 2019

Business Cycles • Questions Executives Need to Ask, Paper360º January/February 2020

Business Cycles • Questions Executives Need to Ask, Paper360º January/February 2020

Employee Selection Can Help Weather the ´Silver Tsunami’, Paper360º January/February 2020

Employee Selection Can Help Weather the ´Silver Tsunami’, Paper360º January/February 2020

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 (HOœ) 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.

Editorial: Seshadri Ramkumar: Nonwovens specialist and TTU professor joins TJ Editorial Board, TAPPI Journal October 2021

ABSTRACT: TAPPI and the TAPPI JOURNAL (TJ) editorial staff would like to welcome a new member to the TJ Editorial Board, Seshadri “Ram” Ramkumar, Ph.D., a professor in the Department of Environmental Toxicology at Texas Tech University (TTU) in Lubbock, TX. Readers will be familiar with Ram as a frequent contributor of guest editorials in TAPPI Journal on the topic of nonwovens.

World’s Largest MVR Evaporation Plant for Sulphite Spent Liquor at Sappi Saiccor Pulp Mill, Paper360º July/August 2022