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nitrogen, phytoremediation

Kneteman, Kelly A

Supervisor and department: Dyck, Miles Renewable Resources Nichol, Connie Agrium Inc.

Examining committee member and department: Thomas, Barb Renewable Resources Spaner, Dean Crop Breeding-Agronomy

Department: Department of Renewable Resources

Specialization: Soil Science

Date accepted: 2012-09-28T07:42:56Z

Graduation date: 2012-09

Degree: Master of Science

Degree level: Master's

Abstract: In-situ remediation techniques such as phytoremediation have shown promise as economical alternatives for reducing the risk of environmental contaminants at impacted sites. Research trials were initiated to determine the efficacy of phytoremediation for soil and groundwater contaminated with high levels of nitrogen fertilizer at a fertilizer plant in Alberta, Canada. Experimental trials were conducted in environmental growth chambers, and carried out for a growing degree day period equivalent to an average growing season. Initially, plant growth trials were conducted with soils artificially contaminated with varying levels of ammonium nitrate to determine the approximate upper limit of plant nitrogen tolerance. Historically contaminated soil and groundwater containing high levels of ammonium, nitrate, phosphate and sulfate fertilizers was then investigated using electromagnetic surveying, sampling and chemical analysis. Using this data, samples were collected and growth chamber experiments designed to determine if plants could assist in the remediation of naturally occurring soils and groundwater contaminated with excess fertilizer.Results indicate that plants can take up excess soil nitrogen caused by fertilizer contamination. Phytoremediation is potentially effective under conditions where soils are contaminated by high concentrations of a variety of plant nutrients so long as conditions are not phytotoxic, as well as being economical, sustainable and aesthetically pleasing. The results of this research may be used to develop phytoremediation programs at western Canadian fertilizer facilities.

Language: English

DOI: doi:10.7939-R38T3R

Rights: Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.





Autor: Kneteman, Kelly A

Fuente: https://era.library.ualberta.ca/


Introducción



University of Alberta PHYTOREMEDIATION OF NITROGEN IMPACTED SOIL AND GROUNDWATER AT A FERTILIZER FACILITY IN CENTRAL ALBERTA by Kelly Anne Kneteman A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Soil Science Department of Renewable Resources ©Kelly Anne Kneteman Fall 2012 Edmonton, Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only.
Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the authors prior written permission. ABSTRACT In-situ remediation techniques such as phytoremediation have shown promise as economical alternatives for reducing the risk of environmental contaminants at impacted sites.
Research trials were initiated to determine the efficacy of phytoremediation for soil and groundwater contaminated with high levels of nitrogen fertilizer at a fertilizer plant in Alberta, Canada.
Experimental trials were conducted in environmental growth chambers, and carried out for a growing degree day period equivalent to an average growing season. Initially, plant growth trials were conducted with soils artificially contaminated with varying levels of ammonium nitrate to determine the approximate upper limit of plant nitrogen tolerance.
Historically contaminated soil and groundwater containing high levels of ammonium, nitrate, phosphate and sulfate fertilizers was then investigated using electromagnetic surveying,...





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