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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.
271

Movement of heavy metals and stability of metal-humic complexes in sludge-amended soil /

Du, Wenzheng, January 1998 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript. Vita. Includes bibliographical references (leaves 151-161). Also available on the Internet.
272

The effect of particle surface area to volume ratio on ion release from CoCr spheres a thesis /

Grandfield, Darin Joseph. Harding, Trevor S. January 1900 (has links)
Thesis (M.S.)--California Polytechnic State University, 2009. / Title from PDF title page; viewed on September 22, 2009. Major professor: Trevor Harding, Ph.D. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Engineering, with Specialization in Materials Engineering." "June 2009." Includes bibliographical references (p. 80-84). Also available on microfiche.
273

Movement of heavy metals and stability of metal-humic complexes in sludge-amended soil

Du, Wenzheng, January 1998 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript. Vita. Includes bibliographical references (leaves 151-161). Also available on the Internet.
274

Assessment of surface and ground waters, stream and estuary sediments and other ecosystem receptors to determine long term impacts of surface PCB and heavy metal releases, Makinsons, Newfoundland /

Bourgeois, Jason, January 1997 (has links)
Thesis (M.Sc.)--Memorial University of Newfoundland, 1997. / Bibliography: leaves [122]-131. Also available online.
275

Role of the Arabidopsis peptide transporter AtOPT6 in heavy metal detoxification and plant-pathogen interaction

Patel, Ami Akshay. January 2007 (has links)
Thesis (Ph.D.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 12, 2009) Includes bibliographical references.
276

Nanoporous high surface area silicas with chelating groups for heavy metal ion adsorption from aqueous solution /

Kothalawala, Kothalawalage Nuwan, January 2010 (has links) (PDF)
Thesis (M.S.)--Eastern Illinois University, 2010. / Includes bibliographical references.
277

Adsorption of europium and thulium onto pine wood sawdust /

Ahmad, Iftikhar. January 1900 (has links)
Thesis (Ph. D.)--University of Idaho, 2006. / "May 31, 2006." Includes bibliographical references (leaves 94-101). Also available online in PDF format.
278

Heavy metal complexation with naturally occurring organic ligands in wetland ecosystems

Tuschall, John Richard, January 1981 (has links)
Thesis (Ph. D.)--University of Florida 1981. / Description based on print version record. Typescript. Vita. Includes bibliographical references (leaves 199-211).
279

Plant-metal interactions in a natural and remediated high elevation metal-contaminated wetland

Olsen, Lois Jeanne. January 2004 (has links) (PDF)
Thesis (M.S.)--Montana State University--Bozeman, 2004. / Typescript. Chairperson, Graduate Committee: Catherine Zabinski. Includes bibliographical references (leaves 99-106).
280

Chumbo, níquel e zinco em plantas de milho e solos tratados com lodo de esgoto após dezoito anos consecutivos /

Ribas, Greiscyléia Togo Côrte January 2017 (has links)
Orientador: Wanderley José de Melo / Banca: Priscila Lupino Gratão / Banca: Marcela Midori Yada / Resumo: O esperado aumento na produção do lodo de esgoto e o volume diário de lodo descartado em aterros sanitários reforçam a necessidade do reaproveitamento deste resíduo que pode fornecer nutrientes às plantas ao ser aplicado no solo, tornando-se importante alternativa de disposição, porém a presença de metais pesados limita seu uso. Assim, em duas áreas que receberam lodo de esgoto por 18 anos consecutivos, o objetivo foi avaliar a concentração de Pb, Ni e Zn no solo e plantas de milho após a 18ª aplicação do resíduo. Este experimento ocorreu no ano agrícola 2014/2015 em área de LATOSSOLO VERMELHO Eutroférrico e LATOSSOLO VERMELHO Distrófico, no município de Jaboticabal, SP; com 4 tratamentos (0, 5, 10 e 20 t ha-1 de lodo de esgoto, respectivamente T0, T5, T10 e T20) organizados no delineamento em blocos casualizados com 5 repetições. Foram avaliadas as concentrações pseudototal através do método 3050 B da USEPA e teor disponível através do método Mehlich 1 de Pb, Ni e Zn no solo, acúmulo desses metais na parte aérea das plantas, teor nos grãos e na folha diagnose; estado nutricional, produtividade e massa seca da parte aérea da planta. As concentrações de Pb, Ni e Zn no solo das duas áreas que receberam lodo de esgoto foram superiores aquelas que receberam apenas fertilização mineral convencional, porém no 18º ano de aplicação de lodo, os teores desses metais no solo ainda permanecem abaixo dos níveis estabelecidos para intervenção agrícola, de acordo com a legislação brasileira... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The expected increase in the production of sewage sludge and the daily volume of sludge discarded in landfills reinforce the need to reuse this residue, which can provide nutrients to the plants when applied to the soil, making it important disposal alternative of heavy metals limits its use. Thus, in two areas that received sewage sludge for 18 consecutive years, the objective was to evaluate the concentration of Pb, Ni and Zn in the soil and corn plants after the 18th application of the residue. This experiment occurred in the agricultural year 2014/2015 in the area of Red Oxisol eutroferric and Red Oxisol distrophic, in the municipality of Jaboticabal, SP; with 4 treatments (0, 5, 10 and 20 t ha-1 of sewage sludge, respectively T0, T5, T10 and T20) organized in a randomized block design with 5 replicates. The pseudototal concentrations were evaluated using the USEPA method 3050 B and content available by the Mehlich 1 method of Pb, Ni and Zn in the soil, accumulation of these metals in the aerial part of the plants, grain content and diagnosis leaf; nutritional status, productivity and dry mass of the aerial part of the maize plant. The concentrations of Pb, Ni and Zn in the soil of the two areas that received sewage sludge were higher than those that only received conventional mineral fertilization, but after the 18th year of sludge application, the levels of these metals in the soil still remain below the established levels for agricultural intervention, in Brazilian leg... (Complete abstract click electronic access below) / Mestre

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