tailieunhanh - Paper Recycling Technology Dr. Richard A. Venditti

The bleached pulps were screened prior to sheet preparation. All analyses were performed according to ISO and SCAN standards, except for the carbohydrate analysis of straw which was done by high-performance anion-exchange chromatography (HPAEC). The ashing was conducted at 550°C for 12 h. The mechanically refined pulp after hot water treatment was fractioned with a Bauer McNett apparatus. The paper technical properties were determined from the combined 100 and 200 mesh fractions. In addition, the properties of the mechanical wheat straw pulp reinforced with softwood pulp were analysed. The softwood pulp was beaten for 10 min with a Valley Hollander. | Paper Recycling Technology Dr. Richard A. Venditti Dept. of Wood and Paper Science North Carolina State University Dr. Richard Venditti Faculty member in the Wood and Paper Science Dept at NCSU PhD in Chemical Engineering BS in Pulp and Paper Science and Chemical Engineering Research areas Paper recycling Utilization of forest agricultural materials for new applications Classes Taught Process Control Unit Operations for Pulp and Paper Paper Recycling Distance Director of Hands On Workshop for Pulp and Paper Basics co-sponsored through TAPPI on-campus and in-mill Technical services projects for over 20 companies Dr. Richard Venditti Research Projects in Paper Recycling The detection of adhesive contaminants tracking through mills The changes in fibers upon recycling Automatic sorting of recovered papers Flotation deinking surfactants Agglomeration deinking Screening phenomena and pressure sensitive adhesives Deposition of adhesive contaminants Alternate recycling processes Ultrasonic deinking Supercritical carbon dioxide to extract wax from .

• Hoá dầu
• Metabolites
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