UV-vis spectroscopy as a tool for the detection of residual polymer and optimization of polymer dose in drinking water treatment applications
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The optimization of polymer dose during the coagulation and flocculation stages of drinking water treatment remains a challenge for treatment plants. Incorrect polymer dosage can lead to negative effects downstream, environmental effects, negative health effects and increased polymer costs. Analytical methods are not suitable for on-site monitoring, and it is particularly challenging to accurately detect and measure very low polymer concentrations in drinking water. This study employed an in-line and real-time UV-vis spectrophotometer to measure the polymer concentration in raw and treated water by correlating polymer concentration to the absorbance at 190nm and introduced a new approach to improve the sensitivity and detection limit of the method through altering the path length. In addition, the method was used to determine the optimum polymer dose required for treatment to prevent the addition of excess polymer during coagulation/flocculation. The method has the potential for development into a full-scale optimization system.
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Copyright © 2019 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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cormier-uvvisspectroscopyasatoolforthedetectionof.pdf | 2023-05-05 | Public | Download |