1:00 pm - 1:45 pm
Event details: A graduate exam seminar is a presentation of the student’s final research project for their degree.
This is an ALES MSc Final Exam Seminar by Elyse Gariepy. This seminar is open to the general public to attend remotely.
Thesis Topic: Phytoremediation of vanadium and nickel from wastewater with Acorus calamus
Acorus calamus is an important medicinal plant in many cultures around the world. This plant’s recorded history reaches as far back as 287 BCE, where its main uses were water purification and as a medicinal “cure-all”. In part one, the history of A. calamus, its applications in the modern world and propagation methods were examined. The two main methods were rhizomes vs. seeds. Rhizome growth trials were more successful in overall plant yield than the seeds. Rhizomes planted in peat had 57% plant yield, while the no-peat treatment had 40% plant yield. Part two of the study examined A. calamus efficiency to extract vanadium and nickel from experimentally dosed waters. Vanadium and nickel were chosen for their importance in the environment and their enrichment in bitumen, specifically tailings ponds. Nickel is an important nutrient for plant survival; vanadium is not. Acorus calamus plants were grown in a hydroponic system with 188 plants inside a clean air growth chamber for three months. Every day the plants were subjected to controlled dosing of nickel (0.0, 0.01, 0.10 mg/L) and vanadium (0.0, 0.025, 0.25 mg/L) in three treatment levels. At the end of three months, the plant tissues were harvested and analyzed for metal concentrations. The results showed A. calamus successfully extracting both vanadium and nickel from the contaminated waters with max values of 0.6µg/L and 16.3µg/L, respectively. Results indicate A. calamus would be an excellent candidate for phytoremediation at contamination levels well above what is found naturally occurring in Alberta’s water sources.
Please feel free to listen in at the following Zoom Meeting Invite:
Elyse Gariepy is inviting you to a scheduled Zoom meeting.
Topic: Elyse Gariepy’s Masters Defense
Time: Apr 27, 2020 01:00 PM Mountain Time (US and Canada)
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Meeting ID: 551 957 488
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Meeting ID: 551 957 488
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