Full- and pilot-scale GAC adsorption of organic micropollutants

Kennedy, Anthony M.; Reinert, Allison; Knappe, Detlef R.U.; Ferrer, Imma; Summers, R. Scott

doi:10.1016/j.watres.2014.10.010

Cited by 129 publications

(75 citation statements)

References 26 publications

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“…CURs obtained using the RSSCT require caution be used because RSSCTs tend to overpredict full‐scale breakthrough times and underpredict CURs. Kennedy et al () developed a scaling relationship between RSSCTs and pilot‐scale adsorbers for throughput to 10% breakthrough for more than 30 compounds, including some cVOCs:

ln {BV}_{10 %}^{pilot} = 0.57 + 0.855 ln {BV}_{10 %}^{RSSCT}

…”

Section: Resultsmentioning

confidence: 99%

“…At both EBCTs, 1,2 DCA breakthrough occurs about 30% earlier in the CO II GW, the water with the highest influent TOC. The reduction in target compound performance at higher influent TOC concentrations has been reported and modeled for 1,2 DCA (Kempisty & Summers, 2016) and other target compounds (Corwin & Summers, 2012;Kennedy, Reinert, Knappe, Ferrer, & Summers, 2015;Summers, Kim, Shimabuku, Chae, & Corwin, 2013). In contrast, comparing the CO I and OH GWs did not result in significant differences.…”

Section: Effects Of Varying Background Matrixmentioning

confidence: 92%

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Granular activated carbon adsorption of carcinogenic volatile organic compounds at low influent concentrations

et al. 2019

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The effectiveness of granular activated carbon (GAC) for carcinogenic volatile organic compounds (cVOCs) has not been evaluated in the low‐ to submicrogram per liter range. Rapid small‐scale column tests were used to determine the GAC performance at empty bed contact times (EBCTs) of 7.5 and 15 min for 13 cVOCs at a target influent concentration of 5 μg/L in a typical groundwater matrix. Breakthrough was assessed for vinyl chloride, dichloromethane, 1,1‐dichloroethane (1,1 DCA), 1,2‐dichloroethane (1,2 DCA), 1,2‐dichloropropane, carbon tetrachloride, 1,3‐butadiene, 1,1,1,2‐tetrachloroethane, 1,2,3‐trichloropropane, trichloroethylene, and tetrachloroethylene. The throughput to breakthrough was found to be linearly correlated to capacities calculated with single‐solute equilibrium isotherm parameters. Modest decreases, 9–13% on average, in throughput to 50 and 75% breakthrough were found when the EBCT was increased from 7.5 to 15 min. The carbon use rate (CUR), when scaled to simulate full‐scale adsorption, indicated that GAC would be a viable technology for seven of the cVOCs evaluated, with a CUR threshold of less than 0.2 lb/1,000 gal. It may be possible to use 1,1 DCA and 1,2 DCA as surrogates for assessing chemicals near the feasibility limit.

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ln {BV}_{10 %}^{pilot} = 0.57 + 0.855 ln {BV}_{10 %}^{RSSCT}

…”

Section: Resultsmentioning

confidence: 99%

Section: Effects Of Varying Background Matrixmentioning

confidence: 92%

Granular activated carbon adsorption of carcinogenic volatile organic compounds at low influent concentrations

et al. 2019

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“…As studies increasingly report negative effects of individual compounds Melnyk-Lamont et al, 2014) or complex mixtures at environmentally relevant concentrations (Pomati et al, 2006;Vasquez et al, 2014), upgrading WWTPs with additional treatment stages is currently being discussed as a precautionary measure (Eggen et al, 2014). The most promising treatment options include oxidation with ozone or adsorption onto activated carbon, either in powdered or granular form (Altmann et al, 2014;Hollender et al, 2009;Kennedy et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Integrating organic micropollutant removal into tertiary filtration: Combining PAC adsorption with advanced phosphorus removal

2015

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“…The use of GAC in packed bed filters has also demonstrated to be a highly efficient process in the removal of pharmaceutical compounds from water (Kennedy et al 2015;Huerta-Fontela et al 2011;Kim et al 2007) and wastewater (Ek et al 2014;Luo et al 2014;Rivera-Utrilla et al 2013;Margot et al 2013). In particular, some recent research data concerning the removal of psychiatric pharmaceuticals by activated carbon adsorption, either in powdered or granular form, is presented in Table 3.2.…”

Section: Activated Carbon Adsorptionmentioning

confidence: 99%