Date of Graduation

Spring 5-20-2025

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Natural Sciences, Environmental Science

Thesis Chair

Walter Den

Abstract

Green technologies and nature-based solutions like constructed wetlands have be come more popular due to their environmentally friendly approach to remediation, low cost of construction, and maintenance. Also, they have shown efficiency in removing a wide range of contaminants. However, choosing a suitable aquatic plant for this system is one of the questions that should be answered wisely. Schoenoplectus californicus– Giant Bulrush is an aquatic plant that was tested in this controlled constructed wetland, and the final concentration of the targeted microbial contamination, which is E. coli, was reduced remarkably. Also, for this study, soil was removed from the system, and instead, a hydroponic system was chosen to monitor the effectiveness of different variables on the system. According to the results, water quality was improved through the engineered constructed wetlands, especially in terms of the effectiveness of this aquatic plant in both removing E. coli and improving turbidity in the contaminated water, while other factors either remained the same or decreased throughout the five days of the experiment.

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