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My TAPPI Story: Dave Maddux
Nelson N.-C. Hsu, PhD
Ivan J. Vazquez
Cytec Industries Inc.
Our previous study had shown that the types and chemical compositions of different deinking agents (surfactants or surface active agents) used for deinking newsprint could have pronounced effects on the types and dosages of flocculants needed to clarify the recycle process water.
The current study is focused on mixed office waste (MOW) recycle process water. Deinking agents for MOW are different from those used in newsprint deinking due to the different types of ink to be removed from MOW. The filler contents in MOW are usually higher and different from those present in newsprint. We have also learned from another study that different wastepaper fillers and their contents in the recycle process water can affect the clarification process. This study attempts to identify the influences of the MOW deinking agent’s hydrophilic and lipophilic characteristics on the clarification of MOW recycle process water. The effect of adding fatty acid soap to the surfactant is also discussed.
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Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.
The best-selling text to introduce the entire technology of pulp and paper manufacture.
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Available for Purchase – Conference Proceedings
TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.