Papers by Isabelle Papineau
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Water Research, 2018
Anionic exchange is an effective treatment option for the removal of natural organic matter from ... more Anionic exchange is an effective treatment option for the removal of natural organic matter from surface waters. However, the management of the spent brine regenerant often limits the adoption of this process. The current study reports one year of operation of ion exchange resins under biological mode (BIEX, i.e. without regeneration to promote biofilm growth on the media) compared to the performance of (i) ion exchange with weekly regeneration (IEX), (ii) granular activated carbon under biological mode (BAC) and (ii) granular activated carbon under adsorption mode (GAC). Four parallel pilot filters (GAC, BAC, IEX and BIEX) were fed with a colored and turbid river water without pretreatment. Although IEX provided the best performance (80% DOC removal) throughout the study, BIEX achieved a similar performance to IEX prior to DOC breakthrough (92 days) and subsequently achieved a mean DOC removal of 62% in warm water conditions. The GAC filter was rapidly exhausted (2 weeks) while the BAC filter only provided a 5% DOC reduction. Full nitrification was observed on both the BIEX and BAC filters under warm water conditions (>15 °C). After one year of operation, BIEX was successfully regenerated with brine. According to a mass balance, 69% of DOC removal in BIEX was due to ion exchange while we assume the remainder was biodegraded. Operation of ion exchange in biological mode is a promising option to reduce spent brine production while still achieving high DOC removal.
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Journal of Water Process Engineering
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Journal of Environmental Chemical Engineering
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Science of The Total Environment
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Journal of Water Process Engineering
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ACS ES&T Water
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Journal of Water Supply: Research and Technology—AQUA, 2015
ABSTRACT
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Journal of Water Supply: Research and Technology—AQUA, 2015
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American Journal of Infection Control, 2014
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Water Science & Technology: Water Supply, 2013
ABSTRACT
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Water Research, 2014
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Journal of Environmental Engineering, 2013
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Papers by Isabelle Papineau