by Dept. of Mining and Metallurgical Engineering, McGill University in Montréal, Qué .
Written in English
Laboratory and pilot columns were operated on paper pulps to evaluate the effects of gas dispersion and mixing on scale-up. Gas dispersion properties were measured by gas holdup (eg), gas rate (Jg) and the derived parameter, bubble surface area flux (Sb). To calculate Sb, bubble size (db) was estimated from drift flux analysis. Direct measurement of db using a photographic technique supported the estimation. Mixing was modeled by relating the vessel dispersion number (Nd), determined from residence time distribution measurements made using a conductivity technique, to design and operating variables. From the mixing model, the pulp zone flotation rate constant (kc) was determined from measured ink recovery vs time data. The kc was correlated with gas dispersion and showed a linear dependence on Sb, supporting recent findings in mineral flotation. A linear relationship was also found with eg. The improved reliability of scale-up achieved by incorporating the kc - Sb relationship is demonstrated.
|Statement||Hugo Alberto Hernandez-Alvarez.|
|Series||McGill University theses|
|The Physical Object|
|Pagination||xx, 207 l. :|
|Number of Pages||207|
Flotation is a critical process step for ink removal from recycled paper. Column flotation is a specific form of flotation that has grown in popularity recently. In this study, nonionic surfactant and fatty acid were used as the de-inking agent for froth-flotation process of mixed recovered paper to investigate the effect of . Years Employer Title Department Responsibilities; Years: to Present Employer: Undisclosed Title: President & Chief Science Officer Department: Contract R&D Responsibilities: Consulted and performed contract R&D for chemical and process industries in the area of rheology and fine particle technology. Provided contract R&D and laboratory testing services to the process . PAPer weIGhTS 80g – Indian food over-the-counter leaflets, everyday-use print paper, cheap. g – Good photocopy quality paper g – Letter .
On the one hand, a statutory procedure provides clarity about what must be done, but on the other, it opens up the opportunity for legal action to challenge workers on adherence to procedure. EPA/b August MUNICIPAL SOLID WASTE: RESOURCE RECOVERY Proceedings of the Fifth Annual Research Symposium at Orlando, Florida, Ma 27, Cosponsored by the University of Central Florida and the Solid and Hazardous Waste Research Division U.S. Environmental Protection Agency Edited by: Martin P. Wanielista and . Most de-inking is accomplished by the use of surfactants, dispersion and flotation. Since starch is biodegradable, it has found use as filler in polymers, such as extruded films applied to paperboard for use in packaging, The starch is incorporated in granular form, as an octenylsuccinate derivative and in other by: Stainless Steels and Specialty Alloys for Modern Pulp and Paper Mills Reference Book Series No 11 The material presented in this publication has been prepared for the general information of the reader and should not be used or relied on for specific applications without first securing competent advice.
The primary emphasis of the book is for industrial applications and the primary audience is expected to be the practitioners of the art of fluidization, solids handling, and processing. It will be particularly beneficial for engineers who operate design plants where solids are handled, transported, and processed using fluidization technology. Full text of "Integrated Solid Waste Management" See other formats. DEVELOPMENT DOCUMENT for EFFLUENT LIMITATIONS GUIDELINES and NEW SOURCE PERFORMANCE STANDARDS for the UNBLEACHED KRAFT AND SEMICHEMICAL PULP SEGMENT OF THE PULP, PAPER AND PAPERBOARD MILLS POINT SOURCE CATEGORY Russell E. Train Administrator James L. Agee Assistant Administrator for Water . Modern Music - Being Book Three of a Narrative History of Music (), Edward Burlingame Hill, Ernest Newman Gift and Award Bible-Nlt, Tyndale House Publishers HTML - Introductory Concepts and Techniques, Gary B. Shelly, Denise M. Woods.