Global ETD Search

311	The improvement of effluent and water treatment by chemical floc modification Mawhinney, Heather Joan January 2001 (has links) No description available. 628.168 Water pollution & oil pollution
312	Transport of the oxidising agent permanganate in the subsurface and the investigation of its potential to degrade methyl tert-butyl ether in-situ Damm, Jochen H. January 2003 (has links) No description available. 628 Water pollution & oil pollution
313	Aspects of the use of ternary complexes for the absorptiometric determination of fluoride Ferris, Marie M. January 1989 (has links) No description available. 628.168 Water pollution & oil pollution
314	Industrial wastewater treatment using biological activated carbon Walker, Gavin Michael January 1995 (has links) No description available. 628.168 Water pollution & oil pollution
315	Adsorption and desorption of basic dyes in the aqueous phase Murray, Margaret Anne January 1995 (has links) No description available. 628.168 Water pollution & oil pollution
316	The impact of urban runoff on estuarine pollution, the River Lagan, Belfast Watts, Sarah E. J. January 1996 (has links) No description available. 628.168 Water pollution & oil pollution
317	Water pollution control with toxicant avoidance tests Hadjinicolaou, John. January 1983 (has links) An extensive review of all the avoidance apparatus which have been used to date in chemical avoidance tests and also an analysis of the trends and needs for new improved designs led to the design of a new avoidance apparatus. The new apparatus is a viable tool for analyzing the behavioral responses of fish to potentially toxic effluents in three dimensions. The method is quick, sensitive and relatively easy to use if sufficient fish stock is available. / The variable parameters of the avoidance reaction were three: (a) the type of the pollutant, (b) the injection system, and (c) the concentration of the pollutant. / Statistical analysis for the experiments included preliminary calculations, time series analysis, analysis of variance and Duncan's tests. / Preliminary tests evaluated the general disposition of fish in the channel, the influence of a water acclimation jet and also the effects of noise, light and temperature. Experiments were performed to define the optimal number of fish per experiment, the influence of video analysis and also of variability, adaptability and continuity. / The types of pollutants used were D.S.S. (dodecyl sodium sulfate)--a well-known reference pollutant, polymers, monomers, a plating industrial effluent and its components (Cr, Ni, Fe). / For all of these, horizontal and vertical distributions were produced together with avoidance curves and avoidance reaction representations. / The role of the avoidance reaction in relation to lethal and sublethal levels has been defined; after the evaluation of synergism and antagonism phenomena, proposed adjustments for safe toxicant levels have been estimated. Water -- Pollution -- Toxicology. Fishes -- Effect of water pollution on.
318	Virus persistence in ground water Yates, Marylynn Villinski. January 1984 (has links) (PDF) Thesis (Ph. D. - Microbiology and Immunology)--University of Arizona, 1984. / Includes bibliographical references (leaves 201-208).
319	Three essays on toxic chemical releases, house values, health and labor productivity Ho Thi Chau Sa. January 2007 (has links) (PDF) Thesis (Ph.D.)--Auburn University, 2007. / Abstract. Vita. Includes survey instruments. Includes bibliographic references (ℓ. 129-138)
320	Soil washing and post-wash biological treatment of petroleum hydrocarbon contaminated soils / Bhandari, Alok, January 1992 (has links) Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 102-106). Also available via the Internet.

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