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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

Removal of nitrates from water by chemical reduction /

Young, George Kenneth, January 1962 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute, 1962. / Vita. Abstract. Includes bibliographical references (leaf 29). Also available via the Internet.
2

The effects of land use on stream nitrate concentrations : from the catchment scale to the regional scale /

Poor, Cara J. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2007. / Printout. Includes bibliographical references. Also available on the World Wide Web.
3

Groundwater nitrate removal capacity of riparian zones in urbanizing watersheds /

Watson, Tara Kimberly. January 2006 (has links) (PDF)
Thesis (M.S.)--University of Rhode Island, 2006. / Includes bibliographical references (leaves 108-112). Also available online via the University of Rhode Island Watershed Hydrology Laboratory publications home page.
4

Mechanisms controlling nitrogen removal in agricultural headwater streams

Herrman, Kyle S., January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 93-102).
5

Sources and sinks of nitrogen in the Cape Fear River estuary, southeastern North Carolina /

Bradshaw, Leslie C. January 2005 (has links)
Thesis (M.S.)--University of North Carolina at Wilmington, 2005. / Includes bibliographical references (leaves: [70]-81)
6

Methanol, formaldehyde, and acetaldehyde in rain ; Development of a method to determine [delta] ¹⁵N-NO₂⁻ and NO₃⁻ in fresh and brackish waters

Felix, Joseph David January 2008 (has links) (PDF)
Thesis (M.S.)----University of North Carolina Wilmington, 2008. / Title from PDF title page (viewed May 26, 2009) Includes bibliographical references (p. 61)
7

Vliv antropogenní činnosti na znečištění vybraných vodních nádrží v povodí Jordánu.

ŠÍMOVÁ, Barbora January 2017 (has links)
The master thesis deals with influence of system of water reservois and farming on suface water quality in catchment Košín stream in the Tabor region. There were investigated effect on suface water quality of several watercourses flowing through farmland with markedly different land cover, farming, size of catchment area and different water reservoirs. The fundamental hydrochemical parameters such as content of nutrient, inorganic and organic carbon and undissolved substances were monitored. The water samples were collected from permanent sampling points during the growing season. The investigated compounds were determined in the laboratory by titration, gravimetry and spectrophotometry. Mean, median, interquartile range were determined within the basic descriptive statistics and the data were statistically processed by nonparametric tests. Results showed particularly significant influence of the littoral vegetation and wide strips of tree vegetation as an effective filter, which prevent pollution of surface water by nutrient runoff. In some cases, the land cover was reflected positive impact of vegetation on reducing contamination of the water above the level specified by legislation, therefore vegetation is great importance in the fight pollution of waterways. From the obtained data it is obvious that influence of anthropogenic pollution on surface water is very important, but appropriate land cover can minimalize this impact.

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