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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

The relationship of the pulp and paper industry to state and local area development in Georgia

Hamilton, Robert Williams 08 1900 (has links)
No description available.
92

Development of a capillary electrophoretic method for the separation and detection of resin acids

Rigby, Tracey. January 2000 (has links)
A method for the separation and detection of standard resin acids (RAs), commonly found in pulp mill effluent and known to bioaccumulate in fish bile, was optimized using cyclodextrin modified electrokinetic capillary electrophoresis (CD-EKC) with ultra violet (UV) and laser induced fluorescence (LIF) detection. Optimal separation conditions were found with RA standards using UV detection at 214 nm, with a 72 mM sodium borate buffer pH 9.25, containing 35 mM beta-cyclodextrin sulfobutyl ether (SPCD), 15 mM of methyl-beta-cyclodextrin (MECD) and a 37 cm capillary with an internal diameter of 50pm. This resulted in a 12-min separation and the identification of 9 peaks, with a LOD of 10 ppm. To enable increased sensitivity, RAs were derivatized using the fluorescent label 4-BrMMc. A method for extracting resin acids from spiked fish bile and pulp mill effluent was developed, the extracted samples were derivatized, separated and identified using CD-EKC with LIF detection. The method of extraction and derivatization using CD-EKC was applied to biological samples of contaminated effluent and fish bile. (Abstract shortened by UMI.)
93

Acetate and poly-b-hydroxybutyrate (PHB) metabolism by the activated sludge floc community of a hardwood Kraft pulp and paper mill

Pouliot, Cédrick January 2005 (has links)
This research followed acetate carbon (C) uptake, metabolism, and fate through a typical modern Kraft pulp and paper mill AS system. Freshly collected mill biomass (AS floc suspensions) was placed under conditions representing four key phases of AS biotreatment: (1) initial acetate uptake by aerated starved AS; (2) ongoing acetate uptake; (3) aerobic metabolism of acetate-loaded AS in acetate-stripped effluent; and (4) anaerobic, settled biomass metabolism. Conditions mimicked the mill system as closely as possible. Acetate carbon uptake kinetics and conversion to CO2, growth products, PHB, and secreted metabolites in each of the four phases were measured. The role of PHB synthesis in the initial stripping of acetate from mill effluent and the PHB production potential of this mill AS were also investigated. / Results showed that acetate was rapidly taken up by high-affinity systems in the AS. During the initial exposure of mill-starved AS, acetate greatly stimulated AS-O2 uptake, and was quickly converted to PHB and CO 2. Upon depletion of available effluent acetate, as occurs in the downstream sections of the aeration tank, O2-uptake rates decreased and the acetate-C stored in AS-PHB was slowly released as CO2, and partly used for growth. Under secondary clarifier-like anaerobic conditions, the AS released virtually no CO2. However, substantial amounts of PHB were used for growth under anaerobic conditions and a small proportion of the original acetate C exited the cells as organic acids.
94

Enzymatic hydrolysis with commercial enzymes of a xylan extracted from hardwood pulp [electronic resource] /

Marais, Susann. January 2008 (has links)
Thesis (M.Eng.(Chemical Engineering))--University of Pretoria, 2008. / Includes bibliographical references.
95

Four essays on factor demand modelling

Larsson, Jan, January 1900 (has links)
Thesis (Ph. D.)--Göteborg University, 2004. / Includes bibliographical references.
96

Biodecolorization of paper mills wastewater using anaerobic composting

Méndez-Sánchez, Noemi C., Lange, Clifford R., January 2009 (has links)
Thesis (Ph. D.)--Auburn University. / Abstract. Vita. Includes bibliographical references (p. 153-178).
97

Biology of common bully (Gobiomorphus cotidianus)

Bleackley, Natalie Anne. January 2008 (has links)
Thesis (M.Sc. Biological Sciences)--University of Waikato, 2008. / Title from PDF cover (viewed March 11, 2009) Includes bibliographical references (p. 104-128)
98

Disposal of a primary papermill sludge on sandy cropland soil

Huettl, Peter Joseph Vincent, January 1982 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1982. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
99

Influence of Firm Structure on Profitability in the U.S. Pulp and Paper Industry (1960-1998)

Suleman, Kanwar Muhammad January 2003 (has links) (PDF)
No description available.
100

Profil sociodémographique des travailleurs de la compagnie Price de Kénogami, 1912-1942

Tremblay, Gervais January 1999 (has links) (PDF)
No description available.

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