Predicting trace organic compound breakthrough in granular activated carbon using fluorescence and UV absorbance as surrogates

Water Research
Tarun AnumolShane A Snyder

Abstract

This study investigated the applicability of bulk organic parameters like dissolved organic carbon (DOC), UV absorbance at 254 nm (UV254), and total fluorescence (TF) to act as surrogates in predicting trace organic compound (TOrC) removal by granular activated carbon in water reuse applications. Using rapid small-scale column testing, empirical linear correlations for thirteen TOrCs were determined with DOC, UV254, and TF in four wastewater effluents. Linear correlations (R(2) > 0.7) were obtained for eight TOrCs in each water quality in the UV254 model, while ten TOrCs had R(2) > 0.7 in the TF model. Conversely, DOC was shown to be a poor surrogate for TOrC breakthrough prediction. When the data from all four water qualities was combined, good linear correlations were still obtained with TF having higher R(2) than UV254 especially for TOrCs with log Dow>1. Excellent linear relationship (R(2) > 0.9) between log Dow and the removal of TOrC at 0% surrogate removal (y-intercept) were obtained for the five neutral TOrCs tested in this study. Positively charged TOrCs had enhanced removals due to electrostatic interactions with negatively charged GAC that caused them to deviate from removals that would be expected with their log Dow...Continue Reading

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Citations

May 29, 2016·Journal of Hazardous Materials·Massimiliano SgroiFederico G A Vagliasindi
Jan 25, 2017·Environmental Science & Technology·Kyle K ShimabukuR Scott Summers
Feb 28, 2020·Annual Review of Nursing Research·Laura AnderkoStephanie Chalupka
May 6, 2020·International Journal of Environmental Research and Public Health·Huma Ilyas, Eric D van Hullebusch
May 3, 2018·Environmental Monitoring and Assessment·Edson Marcelino AlvesEutimio Gustavo Fernández Núñez
Dec 24, 2018·The Science of the Total Environment·Luigi RizzoDespo Fatta-Kassinos
Jun 4, 2021·Environmental Engineering Science·Joshua KearnsDetlef Knappe

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