Register Now
Dirt Inspection Charts
TAPPI Connect is your centralized networking & collaboration tool.
My TAPPI Story: Rory Wolf
TAPPISAFE
Discharging a high-energy spark underwater creates a shock wave which dissipates through an acoustic field. The hydroxyl radicals created by the field are able to mildly oxidize the surfaces of ink and toner particles, thereby decreasing their zeta potential. This decrease inhibits the tendency of these particles to attach to fiber, which is negatively charged. Pilot studies showed that sparking a mixture of ONP and OMG increased both brightness and yield by 1% when the treated furnish was subsequently subjected to flotation deinking. The hydroxyl radicals are also able to oxidize the surface of microstickies and promote their agglomeration. The agglomerated particles are more easily rejected by reverse cleaners as shown in a full-scale trial. A mill trial also showed that the sparker improved clarification efficiency in a DAF.
Experience the Power of Publications in the 2024 TAPPI Press Catalog
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.
A project of the Yankee Dryer Safety & Reliability Committee.
TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries.
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.
Spark Technology: Mill Trials, 2004 Paper Summit, Spring Technical & International Environmental Con
