2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/06/2017 | 11:45 AM - 12:00 PM | A Novel Water Column Reactor for Exploring the Effects of Mixing on Harmful Algal Blooms | 306B
A Novel Water Column Reactor for Exploring the Effects of Mixing on Harmful Algal Blooms
The formation of harmful algal blooms (HABs) in freshwater systems is an increasingly common occurrence. HABs produce a range of negative consequences from taste and odor issues in drinking water to the endangerment of human and ecosystem health. Artificial mixing has been utilized in several reservoirs as a means for source water control, however our understanding of the effects of mixing on phytoplankton community dynamics is limited due to the numerous factors effecting mixing and phytoplankton in natural systems. Our research group has built a novel, laboratory-based Water Column Reactor (WCR) to mimic shallow lake conditions in an aim to better understand the effects of mixing on phytoplankton community dynamics. The WCR is 2 m tall and has a diameter of approximately 30 cm. 14 ports are evenly spread to facilitate nutrient addition and sampling at variable depths. An artificial light source allows the growth of algal species through photosynthesis. A flexible mixing system will allow the exploration of variable mixing depths and intensities. In this presentation, we will discuss the development and configuration of this system as well as results from preliminary testing with cyanobacteria.
- C01 Algae
- C24 Eutrophication
- S20 Understanding physical controls on cyanobacteria dominance: toward prediction and prevention
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Presenters/Authors
Tarek Aziz
(), NC State University, tnaziz@ncsu.edu;
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Alexandre Mangot
(), NC State University, amangot@ncsu.edu;
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Daniel Obenour
(), NC State University, drobenour@ncsu.edu;
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Astrid Schnetzer
(), NC State University, aschnet@ncsu.edu;
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