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Functional categories of microbial toxicity resulting from three advanced oxidation process treatments during management and disposal of contaminated water.
Chemosphere 2019; 238:124550C

Abstract

Large volumes of contaminated water are produced via intentional and unintentional incidents, including terrorist attacks, natural disasters and accidental spills. Contaminated waters could contain harmful chemicals, which present management and disposal challenges. This study investigates three Advanced Oxidation Processes (AOPs) - UV/H2O2, O3/H2O2, and electrochemical oxidation using a boron-doped diamond (BDD) anode - to treat eleven contaminants including herbicides, pesticides, pharmaceuticals, and flame retardant compounds. To address treatment and toxicity concerns, this study focuses on the resulting microbial toxicity via Microtox® toxicity and Nitrification Inhibition tests. The results suggest four functional Microtox® toxicity categories upon AOP treatment, which are useful for streamlining AOP selection for specific applications. Except for one compound, the O3/H2O2 and UV/H2O2 AOPs achieved, within experimental error, 100% parent compound degradation during 2 h of treatment for all contaminants, as well as Microtox® toxicities that declined below 10% by the end of the treatment. In addition, anodic oxidation with a BDD electrode exhibited slower degradation and some increases in Microtox® toxicity. Only one compound exhibited above 50% Nitrification Inhibition, indicating the robustness of activated sludge to many contaminated and AOP-treated waters. These results indicate that AOP pre-treatment can be a viable strategy to facilitate drain disposal of contaminated waters, but that eco-toxicity may remain a concern.

Authors+Show Affiliations

Oak Ridge Institute for Science and Education Research Program Hosted by US Environmental Protection Agency, 1300 Pennsylvania Avenue NW, Washington, DC, 20004, USA.Battelle Memorial Institute, 505 King Avenue, Columbus, OH, 43201, USA.US Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH, 45268, USA. Electronic address: magnuson.matthew@epa.gov.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31425868

Citation

Phillips, Rebecca B., et al. "Functional Categories of Microbial Toxicity Resulting From Three Advanced Oxidation Process Treatments During Management and Disposal of Contaminated Water." Chemosphere, vol. 238, 2019, p. 124550.
Phillips RB, James RR, Magnuson ML. Functional categories of microbial toxicity resulting from three advanced oxidation process treatments during management and disposal of contaminated water. Chemosphere. 2019;238:124550.
Phillips, R. B., James, R. R., & Magnuson, M. L. (2019). Functional categories of microbial toxicity resulting from three advanced oxidation process treatments during management and disposal of contaminated water. Chemosphere, 238, p. 124550. doi:10.1016/j.chemosphere.2019.124550.
Phillips RB, James RR, Magnuson ML. Functional Categories of Microbial Toxicity Resulting From Three Advanced Oxidation Process Treatments During Management and Disposal of Contaminated Water. Chemosphere. 2019 Aug 9;238:124550. PubMed PMID: 31425868.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Functional categories of microbial toxicity resulting from three advanced oxidation process treatments during management and disposal of contaminated water. AU - Phillips,Rebecca B, AU - James,Ryan R, AU - Magnuson,Matthew L, Y1 - 2019/08/09/ PY - 2019/03/15/received PY - 2019/08/06/revised PY - 2019/08/08/accepted PY - 2019/8/20/pubmed PY - 2019/8/20/medline PY - 2019/8/20/entrez KW - Advanced oxidation process KW - Boron-doped diamond anode KW - Microtox® toxicity KW - Nitrification inhibition KW - Ozone KW - Ultra violet SP - 124550 EP - 124550 JF - Chemosphere JO - Chemosphere VL - 238 N2 - Large volumes of contaminated water are produced via intentional and unintentional incidents, including terrorist attacks, natural disasters and accidental spills. Contaminated waters could contain harmful chemicals, which present management and disposal challenges. This study investigates three Advanced Oxidation Processes (AOPs) - UV/H2O2, O3/H2O2, and electrochemical oxidation using a boron-doped diamond (BDD) anode - to treat eleven contaminants including herbicides, pesticides, pharmaceuticals, and flame retardant compounds. To address treatment and toxicity concerns, this study focuses on the resulting microbial toxicity via Microtox® toxicity and Nitrification Inhibition tests. The results suggest four functional Microtox® toxicity categories upon AOP treatment, which are useful for streamlining AOP selection for specific applications. Except for one compound, the O3/H2O2 and UV/H2O2 AOPs achieved, within experimental error, 100% parent compound degradation during 2 h of treatment for all contaminants, as well as Microtox® toxicities that declined below 10% by the end of the treatment. In addition, anodic oxidation with a BDD electrode exhibited slower degradation and some increases in Microtox® toxicity. Only one compound exhibited above 50% Nitrification Inhibition, indicating the robustness of activated sludge to many contaminated and AOP-treated waters. These results indicate that AOP pre-treatment can be a viable strategy to facilitate drain disposal of contaminated waters, but that eco-toxicity may remain a concern. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31425868/Functional_categories_of_microbial_toxicity_resulting_from_three_advanced_oxidation_process_treatments_during_management_and_disposal_of_contaminated_water L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)31774-6 DB - PRIME DP - Unbound Medicine ER -