Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
Journal articles
Magazine articles
Investigation of the influencing factors in odor emission from wet-end white water, TAPPI Journal October 2020
ABSTRACT: Emission of malodorous gases, such as volatile organic compounds (VOCs), hydrogen sulfide (H2S), and ammonia (NH3) during pulping and papermaking has caused certain harm to the air environment and human health. This paper investigated the influencing factors of odor emission from wet-end white water during the production of bobbin paper in a papermaking mill using old corrugated containers (OCC) as raw material. The concentration of malodorous gases emitted from wet-end white water was determined with pump-suction gas detectors. The results indicated that low temperature could limit the release of malodorous gases from white water. Specifically, no total volatile organic compounds (TVOC), H2S, and NH3 was detected at a temperature of 15°C. The concentrations of malodorous gases were slightly increased when temperature increased to 25°C. When temperature was 55°C, the released concentrations of TVOC, H2S, and NH3 were 22.3 mg/m3, 5.91 mg/m3, and 2.78 mg/m3, respectively. Therefore, the content of malodorous gases significantly increased with the temperature increase. The stirring of white water accelerated the release of malodorous gases, and the release rate sped up as the stirring speed increased. However, the total amount of malodorous gases released were basically the same as the static state. Furthermore, the higher the concentration of white water, the greater the amount of malodorous gases released. The pH had little influence on the TVOC release, whereas it significantly affected the release of H2S and NH3. With the increase of pH value, the released amount of H2S and NH3 gradually decreased. When pH reached 9.0, the release amount of H2S and NH3 was almost zero, proving that an alkaline condition inhibits the release of H2S and NH3.
Journal articles
Laboratory- and mill-scale study of surfactant spray flotation deinking, TAPPI JOURNAL, October 2005, Vol. 4(10) (216 KB)
Laboratory- and mill-scale study of surfactant spray flotation deinking, TAPPI JOURNAL, October 2005, Vol. 4(10) (216 KB)
Journal articles
Statistical Geometry of Paper Cross-Sections, JOURNAL OF PULP AND PAPER SCIENCE: VOL. 28 NO. 7 JULY 2002 [02JULJP228.pdf]
Statistical geometry of paper cross-sections, Journal of Pulp and Paper Science, July 2002, Vol. 28(7) (321KB)
Journal articles
Metals buildup in TCF bleach plant closure: laboratory simulation, SOLUTIONS! & TAPPI JOURNAL, May 2002 (208KB)
Metals buildup in TCF bleach plant closure: laboratory simulation, SOLUTIONS! & TAPPI JOURNAL, May 2002 (208KB)
Journal articles
Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)
Data for better maintenance plans and investments policy, Solutions! & TAPPI JOURNAL, August 2003, Vol. 2(8) (354KB)
Journal articles
Internet based, interactive simulation: the concept and an evaporator example, TAPPI JOURNAL, February 2003, Vol. 2(2) (147KB)
Internet based, interactive simulation: the concept and an evaporator example, Solutions! & TAPPI JOURNAL, February 2003, Vol. 2(2) (147KB)
Journal articles
The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)
The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)
Journal articles
Preparation of specialized paper, Solutions! & TAPPI JOURNAL, April 2004 (349KB)
Preparation of specialized paper, Solutions! & TAPPI JOURNAL, April 2004 (349KB)
Journal articles
Pulp properties and effluent characteristics from the Mg(OH)2 - based peroxide bleaching process,TAPPI JOURNAL & Solutions! December 2004
Pulp properties and effluent characteristics from the Mg(OH)2 - based peroxide bleaching process,TAPPI JOURNAL & Solutions! December 2004
Journal articles
2004 Performance Survey of the North American Paper Industry, TAPPI JOURNAL, Online Exclusives, December 2004. Vol 3(12), (723KB)
2004 Performance Survey of the North American Paper Industry, TAPPI JOURNAL, Online Exclusives, December 2004. Vol 3(12), (723KB)