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Johs A, Eller VA, Mehlhorn TL, et al. Dissolved organic matter reduces the effectiveness of sorbents for mercury removal. Sci Total Environ. 2019;690:410-416doi: 10.1016/j.scitotenv.2019.07.001.
Johs, A., Eller, V. A., Mehlhorn, T. L., Brooks, S. C., Harper, D. P., Mayes, M. A., Pierce, E. M., & Peterson, M. J. (2019). Dissolved organic matter reduces the effectiveness of sorbents for mercury removal. The Science of the total environment, 690410-416. https://doi.org/10.1016/j.scitotenv.2019.07.001
Johs, Alexander, et al. "Dissolved organic matter reduces the effectiveness of sorbents for mercury removal." The Science of the total environment vol. 690 (2019): 410-416. doi: https://doi.org/10.1016/j.scitotenv.2019.07.001
Johs A, Eller VA, Mehlhorn TL, Brooks SC, Harper DP, Mayes MA, Pierce EM, Peterson MJ. Dissolved organic matter reduces the effectiveness of sorbents for mercury removal. Sci Total Environ. 2019 Nov 10;690:410-416. doi: 10.1016/j.scitotenv.2019.07.001. Epub 2019 Jul 03. PMID: 31299573.
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Sci Total Environ. 2019 Nov 10;690:410-416. doi: 10.1016/j.scitotenv.2019.07.001. Epub 2019 Jul 03.

Dissolved organic matter reduces the effectiveness of sorbents for mercury removal.

The Science of the total environment

Alexander Johs, Virginia A Eller, Tonia L Mehlhorn, Scott C Brooks, David P Harper, Melanie A Mayes, Eric M Pierce, Mark J Peterson

Affiliations

  1. Environmental Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37830, USA. Electronic address: [email protected].
  2. Environmental Sciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, TN 37830, USA.
  3. Center for Renewable Carbon, University of Tennessee, 2506 Jacob Drive, Knoxville, TN 37996, USA.

PMID: 31299573 DOI: 10.1016/j.scitotenv.2019.07.001

Abstract

Mercury (Hg) contamination of soils and sediments impacts numerous environments worldwide and constitutes a challenging remediation problem. In this study, we evaluate the impact of dissolved organic matter (DOM) on the effectiveness of eight sorbent materials considered for Hg remediation in soils and sediments. The materials include both engineered and unmodified materials based on carbon, clays, mesoporous silica and a copper alloy. Initially, we investigated the kinetics of Hg(II) complexation with DOM for a series of Hg:DOM ratios. Steady-state Hg-DOM complexation occurred within 48 to 120 h, taking longer time at higher Hg:DOC (dissolved organic carbon) molar ratios. In subsequent equilibrium experiments, Hg(II) was equilibrated with DOM at a defined Hg:DOC molar ratio (2.4 · 10

Copyright © 2019. Published by Elsevier B.V.

Keywords: Contamination; Mercury; Organic matter; Remediation; Sorbents

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