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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.
21

Biological excess phosphorus removal in short sludge age activated sludge systems

Burke, Russell Armstrong January 1986 (has links)
Includes bibliography. / The objective of this investigation was to test, at laboratory-scale, the behaviour of short sludge age biological excess P removal systems, to assess the response of the systems under non-nitrifying and nitrifying conditions, to determine the optimal system configuration(s) and operational parameters, and to check the settling characteristics of the mixed liquor produced in the systems. A secondary objective was to use the observed response data to test the predictive qualities of both the general activated sludge model of Dold, Ekama. and Marais (1985) and the semi-empirical biological excess P removal model of Wentzel, Dold, Ekama and Marais (1984). The objectives were fulfilled by operating a number of laboratory scale anaerobic/aerobic and anaerobic/anoxic/aerobic systems with varying sludge ages, anaerobic, anoxic and aerobic mass fractions, mixed liquor recycle ratios and COD loading rates.
22

An overview of wastewater management in Hong Kong /

Yu, Chi-wing. January 1994 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1994. / Includes bibliographical references.
23

Deritrification in the activated sludge process with controlled anoxic conditions in the aeration tank /

Wong, Kam-wah. January 1987 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1988.
24

Co-removal of CR(VI) during precipitation of copper, nickel and zinc /

Sun, Jingmei. January 2003 (has links)
Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 202-214). Also available in electronic version. Access restricted to campus users.
25

Effect of pH on the denitrification of activated sludge effluent at high oxygen tensions /

Bugg, John Cline, January 1965 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute, 1965. / Vita. Abstract. Includes bibliographical references (leaves 45-47). Also available via the Internet.
26

Effect of illuviated deposits on inflitration rates and denitrification during sewage effluent recharge

Herbert, Richard A. January 1976 (has links) (PDF)
Thesis (M.S. - Renewable Natural Resources)--University of Arizona. / Includes bibliographical references.
27

A laboratory study of struvite precipitation for phosphorus removal from concentrated animal feeding operation wastewater

Dhakal, Sushmita, January 2008 (has links) (PDF)
Thesis (M.S.)--Missouri University of Science and Technology, 2008. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed April 21, 2008) Includes bibliographical references.
28

Utilization of fixed film media in BNR activated sludge systems /

Mitta, Pramod R., January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 151-154). Also available via the Internet.
29

Advanced process control for nutrient removal activated sludge processes /

Steffens, Marc Alexander. January 1997 (has links)
Thesis (Ph. D.)--University of Queensland, 1998. / Includes bibliographical references.
30

Removal of Heavy metals from wastewaters by ion flotation/

Erdoğan, Demet. Polat, Hürriyet. January 2005 (has links) (PDF)
Thesis (Master)--İzmir Institute Of Technology, İzmir, 2005. / Includes bibliographical references (leaves. 67-70).

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