Fate of bulk and trace organics during a simulated aquifer recharge and recovery (ARR)-ozone hybrid process

Handle URI:
http://hdl.handle.net/10754/563072
Title:
Fate of bulk and trace organics during a simulated aquifer recharge and recovery (ARR)-ozone hybrid process
Authors:
Yoon, Min; Drewes, Jorg; Amy, Gary L.
Abstract:
The attenuation of bulk organic matter and trace organic contaminants (TOrCs) was evaluated for various aquifer recharge and recovery (ARR)-ozone (O3) hybrid treatment process combinations using soil-batch reactor and bench-scale ozonation experiments as a proof of concept prior to pilot and/or field studies. In water reclamation and especially potable reuse, refractory bulk organic matter and TOrCs are of potential health concern in recycled waters. In this study, the role of biotransformation of bulk organic matter and TOrCs was investigated considering different simulated treatment combinations, including soil passage (ARR) alone, ARR after ozonation (O3-ARR), and ARR prior to ozonation (ARR-O3). During oxic (aerobic) ARR simulations, soluble microbial-like substances (e.g., higher molecular weight polysaccharides and proteins) were easily removed while (lower molecular weight) humic substances and aromatic organic matter were not efficiently removed. During ARR-ozone treatment simulations, removals of bulk organic matter and TOrCs were rapid and effective compared to ARR alone. A higher reduction of effluent-derived organic matter, including aromatic organic matter and humic substances, was observed in the ARR-O3 hybrid followed by the O3-ARR hybrid. An enhanced attenuation of recalcitrant TOrCs was observed while increasing the ozone dose slightly (O3: DOC=1). TOrC removal efficiency also increased during the post-ozone treatment combination (i.e., ARR-O3). In addition, the carcinogenic wastewater disinfection byproduct N-nitrosodimethylamine (NDMA) was eliminated below the method reporting limit (<5ngL-1) both during ARR treatment alone and the ARR-ozone hybrid. © 2013 Elsevier Ltd.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Center for Desert Agriculture; Water Desalination & Reuse Research Cntr; Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
Elsevier BV
Journal:
Chemosphere
Issue Date:
Nov-2013
DOI:
10.1016/j.chemosphere.2013.07.038
PubMed ID:
23942016
Type:
Article
ISSN:
00456535
Sponsors:
This study was funded by WateReuse Research Foundation project WRF 08-05 (Use of ozone in water reclamation for contaminant oxidation), discretionary funds provided by KAUST, and a SABIC postdoctoral fellowship award. The comments and views detailed herein may not necessary reflect the views of the WateReuse Research Foundation, its officers, directors, employees, affiliates or agents. The authors would like to thank collaborators at the Applied Research and Development Center at the Southern Nevada Water Authority for the analysis of TOrCs and also thank Dr. Daniel Gerrity for assisting and providing constructive feedback.
Appears in Collections:
Articles; Center for Desert Agriculture; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYoon, Minen
dc.contributor.authorDrewes, Jorgen
dc.contributor.authorAmy, Gary L.en
dc.date.accessioned2015-08-03T11:35:09Zen
dc.date.available2015-08-03T11:35:09Zen
dc.date.issued2013-11en
dc.identifier.issn00456535en
dc.identifier.pmid23942016en
dc.identifier.doi10.1016/j.chemosphere.2013.07.038en
dc.identifier.urihttp://hdl.handle.net/10754/563072en
dc.description.abstractThe attenuation of bulk organic matter and trace organic contaminants (TOrCs) was evaluated for various aquifer recharge and recovery (ARR)-ozone (O3) hybrid treatment process combinations using soil-batch reactor and bench-scale ozonation experiments as a proof of concept prior to pilot and/or field studies. In water reclamation and especially potable reuse, refractory bulk organic matter and TOrCs are of potential health concern in recycled waters. In this study, the role of biotransformation of bulk organic matter and TOrCs was investigated considering different simulated treatment combinations, including soil passage (ARR) alone, ARR after ozonation (O3-ARR), and ARR prior to ozonation (ARR-O3). During oxic (aerobic) ARR simulations, soluble microbial-like substances (e.g., higher molecular weight polysaccharides and proteins) were easily removed while (lower molecular weight) humic substances and aromatic organic matter were not efficiently removed. During ARR-ozone treatment simulations, removals of bulk organic matter and TOrCs were rapid and effective compared to ARR alone. A higher reduction of effluent-derived organic matter, including aromatic organic matter and humic substances, was observed in the ARR-O3 hybrid followed by the O3-ARR hybrid. An enhanced attenuation of recalcitrant TOrCs was observed while increasing the ozone dose slightly (O3: DOC=1). TOrC removal efficiency also increased during the post-ozone treatment combination (i.e., ARR-O3). In addition, the carcinogenic wastewater disinfection byproduct N-nitrosodimethylamine (NDMA) was eliminated below the method reporting limit (<5ngL-1) both during ARR treatment alone and the ARR-ozone hybrid. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThis study was funded by WateReuse Research Foundation project WRF 08-05 (Use of ozone in water reclamation for contaminant oxidation), discretionary funds provided by KAUST, and a SABIC postdoctoral fellowship award. The comments and views detailed herein may not necessary reflect the views of the WateReuse Research Foundation, its officers, directors, employees, affiliates or agents. The authors would like to thank collaborators at the Applied Research and Development Center at the Southern Nevada Water Authority for the analysis of TOrCs and also thank Dr. Daniel Gerrity for assisting and providing constructive feedback.en
dc.publisherElsevier BVen
dc.subjectAquifer recharge and recoveryen
dc.subjectOzonationen
dc.subjectTrace organic contaminantsen
dc.subjectWastewater treatmenten
dc.subjectWater reuseen
dc.titleFate of bulk and trace organics during a simulated aquifer recharge and recovery (ARR)-ozone hybrid processen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentCenter for Desert Agricultureen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalChemosphereen
dc.contributor.institutionAdvanced Water Technology Center (AQWATEC), Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, United Statesen
kaust.authorYoon, Minen
kaust.authorDrewes, Jorgen
kaust.authorAmy, Gary L.en
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