• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 420
  • 113
  • 55
  • 31
  • 15
  • 15
  • 15
  • 15
  • 15
  • 15
  • 9
  • 7
  • 4
  • 3
  • 2
  • Tagged with
  • 858
  • 858
  • 178
  • 159
  • 155
  • 122
  • 108
  • 99
  • 96
  • 93
  • 93
  • 93
  • 91
  • 89
  • 87
  • 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.
61

Effects of construction practices on soil absorption areas for wastewater disposal

Schoenemann, Mark Richard. January 1980 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1980. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 84-88).
62

Sand filtration for virus purification of septic tank effluent

Green, Kenneth M. January 1976 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1976. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 98-103.
63

Effects of a wastewater outfall in a rocky intertidal community /

Warburton, Karen M. January 2005 (has links)
Thesis (M.A.)--Humboldt State University, 2005. / Includes bibliographical references (leaves 55-58). Also available via the Internet from Humboldt Digital Scholar.
64

Isoamethyrin analogues and cyclo[n]pyrrole as sensors for cations and anions

Melfi, Patricia Jennifer, January 1900 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2007. / Vita. Includes bibliographical references.
65

Radioactive waste management and regulation

Willrich, Mason January 1976 (has links)
U.S. Energy Research and Development Administration under Contract no. E(49-18) 2295, Task Order no. 14
66

Radioactive waste management and regulation

Willrich, Mason January 1976 (has links)
U.S. Energy Research and Development Administration under Contract no. E(49-18) 2295, Task Order no. 14
67

Radioactive waste management and regulation

Willrich, Mason January 1976 (has links)
U.S. Energy Research and Development Administration under Contract no. E(49-18) 2295, Task Order no. 14
68

O armazenamento de rejeitos radioativos no Brasil com enfase especial em rochas

ENOKIHARA, CYRO T. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:52Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:55Z (GMT). No. of bitstreams: 1 11272.pdf: 3694600 bytes, checksum: 59ea029affc46c70103e5e932a8939ea (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
69

O armazenamento de rejeitos radioativos no Brasil com enfase especial em rochas

ENOKIHARA, CYRO T. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:52Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:55Z (GMT). No. of bitstreams: 1 11272.pdf: 3694600 bytes, checksum: 59ea029affc46c70103e5e932a8939ea (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
70

The potential economic contribution of mine waste to environmental rehabilitation

Van Heerden, Jeanne 02 February 2009 (has links)
M.Sc. / There has been significant development of new technology for the economic use of mining waste within recent years. The application of these new technologies makes the process of environmental rehabilitation less of a profit loss to mining companies and motivates them to take part in environmental rehabilitation. Apart from the financial benefit through redemption of costs, the economic use of mining waste, especially in the case of retreatment operations, may lead to the removal of waste from site, the removal of harmful substances, the recovery of economic minerals and job creation. The importance of the development and application of these technologies is emphasised through consideration of the different impacts of mining on the environment, the requirements by new environmental laws concerning mining activities in South Africa and the economic survival of the mining industry. This paper discusses the currently available and developing technologies to utilise mine waste economically by highlighting some of the most significant developments over the years. The paper then focuses on the uses of coalmine waste and associated regulations implemented to promote its economic use. The paper then continues to discuss other technology and techniques that can be applied to facilitate the economic use of mining waste. Lastly the paper examines whether mining companies in Gauteng and a few coal mines outside Gauteng are applying any of these technologies or are using their waste economically in other ways.

Page generated in 0.0566 seconds