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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.
1

Steroid estrogens and estrogenic activity in farm dairy shed effluents : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Chemistry in the University of Canterbury /

Gadd, Jennifer Bronwyn. January 1900 (has links)
Thesis (Ph. D.)--University of Canterbury, 2009. / Typescript (photocopy). "March 2009." Includes bibliographical references (p. 163-173). Also available via the World Wide Web.
2

A study of the fate and transport of estrogenic hormones in dairy effluent applied to pasture soils : a thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Lincoln University /

Steiner, Laure D. January 2009 (has links)
Thesis (Ph. D.) -- Lincoln University, 2009. / Also available via the World Wide Web. Some images in print version are not in digital version.
3

The fate of nitrogen in lactose-depleted dairy factory effluent irrigated onto land : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, Lincoln University /

Ford, C. D. January 2008 (has links)
Thesis (M. Sc.) -- Lincoln University, 2008. / Also available via the World Wide Web.
4

The economics of anaerobic digestion

Bishop, Clark Paul, January 2007 (has links) (PDF)
Thesis (M.A. in applied economics)--Washington State University, August 2007. / Includes bibliographical references.
5

Effect of process modifications on the reduction of water use and waste in a case study dairy plant /

Carawan, Roy Eugene January 1977 (has links)
No description available.
6

Constructed wetland use for treatment of dairy milkhouse wastewaters in Maine /

Kostinec, Robert A., Rock, Chet A. Brutsaert, Willem F. Seymour, Rose Mary. January 2001 (has links)
Thesis (M.S.) in Civil Engineering--University of Maine, 2001. / Includes vita. Advisory Committee: Chet A. Rock, Prof. of Civil and Environmental Engineering, Advisor; Willem Brutsaert, Prof. of Civil and Environmental Engineering; Rose Mary Seymour, Asst. Prof. of Bio-Resource Engineering. Includes bibliographical references (leaves 100-104).
7

Treatment of dairy wastewater in a constructed wetland system : evapotranspiration, hydrology, hydraulics, treatment performance, and nitrogen cycling processes

Niswander, Steven Francis 09 May 1997 (has links)
Five unique but related studies were conducted at the Oregon State University Dairy Wetland Treatment System (OSUDWTS), Corvallis, OR. The research site consisted of six parallel wetland cells, which were built in 1992 and began receiving concentrated dairy wastewater in the fall of 1993. Hydrologic, hydraulic, and water quality data were collected at the site for three years. The five resulting studies were: 1. the prediction of evapotranspiration (ET) from wetlands; 2. the development of a hydrologic model and water budget for the OSUDWTS; 3. a preliminary investigation of the hydraulics of the OSUDWTS; 4. an overall evaluation of the treatment performance of the OSUDWTS and applicability of current constructed wetland design methods to livestock wastewater wetlands; and 5. the development of a conceptual model for nitrogen removal in constructed wetlands. Average ET rates for the wetland cells were found to be 1.6 times as great as the Penman- Monteith alfalfa reference ET. Specific crop coefficients were 1.72, 2.32, and 0.57 for bulrush, cattails, and floating grass mats. The detailed hydrology model predicted daily water levels very accurately (R��=0.95) and showed seasonal rainfall and ET could increase or decrease the average detention time by as much as 18%. Tracer studies indicated that non ideal flow existed in the wetlands. Actual detention times were found to be an average of 43% shorter than theoretical detention times. Tank-in-series and plug flow modified by dispersion models were inadequate at describing the observed tracer response. Constructed wetlands were shown to be able to reduce a high percentage of most waste constituents in concentrated livestock wastewaters. Average reductions for COD, BOD, TS, TSS, TP, TKN, NH��� and fecal coliforms were 45, 52, 27, 55, 42, 41, 37 and 80%, respectively. Rate constants for volumetric and areal first-order plug flow models were found for each wastewater constituent. Overall, both models were fair at predicting wastewater reduction at the OSUDWTS. A conceptual model of nitrogen cycling showed denitrification to be the most important process for nitrogen removal in constructed wetlands. However, low dissolved oxygen in constructed wetlands limits nitrification, which in turn limits denitrification. / Graduation date: 1997
8

Biconversion of cheese whey into fuels and solvents

Vaca Mier, Mabel. January 1985 (has links)
No description available.
9

Comparison of different technologies for dilute milk parlor wastewater treatment and reuse

Lin, Luo-Ting January 2007 (has links)
Thesis (M.S.)--University of Hawaii at Manoa, 2007. / Includes bibliographical references (leaves 121-127). / xiv, 127 leaves, bound ill. 29 cm
10

Biconversion of cheese whey into fuels and solvents

Vaca Mier, Mabel. January 1985 (has links)
No description available.

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