• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 140
  • 59
  • 17
  • 12
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 2
  • 2
  • 2
  • Tagged with
  • 287
  • 51
  • 43
  • 40
  • 34
  • 33
  • 31
  • 31
  • 29
  • 28
  • 25
  • 23
  • 23
  • 20
  • 20
  • 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.
11

Tetrachloroethene (PCE) and trichloroethene (TCE) biogradation with bioreactors

Wang, Lei, January 2001 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 156-168). Also available on the Internet.
12

Design of a packed-bed fungal bioreactor : the application of enzymes in the bioremediation of organo-pollutants present in soils and industrial effluent /

Fillis, Vernon William. January 1900 (has links)
Thesis (MTech (Chemical Engineering))--Peninsula Technikon, 2001. / Word processed copy. Summary in English. Includes bibliographical references. Also available online.
13

Continuous ethanol production in a two-stage, immobilized and suspended cell bioreactor

Gil, Gwang-Han 08 1900 (has links)
No description available.
14

A membrane bioreactor(MBR) for an innovative biological nitrogen removal process

Chen, Wen, January 2007 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2008. / Also available in print.
15

Operational strategies for optimal carbon, nitrogen and phosphorus removal using sequencing batch reactor /

Lindawati. January 2004 (has links)
Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2004. / Includes bibliographical references. Also available in electronic version. Access restricted to campus users.
16

Biotreatment of contaminated gases in a sparged suspended-growth reactor : mass transfer and biodegradation model /

Bielefeldt, Angela Rae. January 1996 (has links)
Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [428]-439).
17

Development of a membrane immobilised amidase bioreactor system /

Du Preez, Ryne. January 2008 (has links)
Thesis (MScEng)--University of Stellenbosch, 2008. / Bibliography. Also available via the Internet.
18

Characterization of vinyl chloride degrading bacteria from a serial anaerobic chloroethene bioreactor

Damron, Fredrick Heath. January 2006 (has links)
Theses (M.S.)--Marshall University, 2006. / Title from document title page. Includes abstract. Document formatted into pages: contains vi, 77 p. Bibliography: p. 74-77.
19

NOx removal & transformations in fungal bioreactors

Chung, Sung Yeup, Kinney, Kerry A., January 2004 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisor: Kerry A. Kinney. Vita. Includes bibliographical references. Also available from UMI.
20

MOLECULAR PROFILING OF THE MICROBIAL COMMUNITY AND SULFATE- REDUCING BACTERIA ASSOCIATED WITH SIX PILOT SCALE PASSIVE SULFATE- REDUCING BIOREACTORS

Babbitt, Aaron 01 May 2015 (has links)
Acid mine drainage (AMD) is an environmental hazard across the world. Passive bioreactors utilizing sulfate-reducing bacteria to remediate AMD impacted sites are a promising solution due to their low cost and minimal maintenance. This study profiled the microbial community associated with six in situ, pilot scale bioreactors that were constructed with varying ratios of simple and complex organic substrate and exposed to AMD. Samples were analyzed nine and fourteen months post assembly to ascertain long-term performance. The overall microbial and sulfate-reducing communities were analyzed by 16S rRNA gene and dsrA gene sequencing, respectively. Over the fourteen-month experiment, the results indicated that the microbial community shifted from one dominated by heterotrophic and fermentative microorganisms utilizing the available substrates to one commonly found in untreated AMD. Thus suggesting a decrease in bioreactor performance over time. The data also indicated that the overall microbial communities within the test bioreactors possessed similar members, but in different abundance. Thus it is unlikely that substrate composition played a significant role in community diversity. At the end of the study period, sulfide measurements suggested that the bioreactor containing the highest amount of complex substrate (Barrel 6) resulted in the greatest stimulation of sulfate reduction. Analysis of the dsrA genes from the community in Barrel 6 suggested that bacteria related to thermophilic sulfate-reducers were responsible for the increased sulfate reduction in this bioreactor.

Page generated in 0.046 seconds