A soil column study to evaluate treatment of trace elements from saline industrial wastewater

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dc.contributor.author Paredez, Jose M.
dc.contributor.author Mladenov, Natalie
dc.contributor.author Galkaduwa, Madhubhashini B.
dc.contributor.author Hettiarachchi, Ganga M.
dc.contributor.author Kluitenberg, Gerard J.
dc.contributor.author Hutchinson, Stacy L.
dc.date.accessioned 2017-11-30T20:41:35Z
dc.date.available 2017-11-30T20:41:35Z
dc.date.issued 2017-07-31
dc.identifier.uri http://hdl.handle.net/2097/38274
dc.description Citation: Paredez, J. M., Mladenov, N., Galkaduwa, M. B., Hettiarachchi, G. M., Kluitenberg, G. J., & Hutchinson, S. L. (2017). A soil column study to evaluate treatment of trace elements from saline industrial wastewater. Water Science and Technology. https://doi.org/10.2166/wst.2017.413
dc.description.abstract Industrial wastewater from the flue gas desulfurization (FGD) process is characterized by the presence of trace elements of concern, such as selenium (Se) and boron (B) and relatively high salinity. To simulate treatment that FGD wastewater undergoes during transport through soils in subsurface treatment systems, a column study (140-d duration) was conducted with native Kansas soil and saline FGD wastewater, containing high Se and B concentrations (170 ?g/L Se and 5.3 mg/L B) and negligible arsenic (As) concentration (?1.2 ?g/L As). Se, B, and As, and dissolved organic carbon concentrations and organic matter spectroscopic properties were measured in the influent and outflow. Influent Se concentrations were reduced by only ?half in all treatments, and results suggest that Se sorption was inhibited by high salinity of the FGD wastewater. By contrast, relative concentrations (C/Co) of B in the outflow were typically <10%, suggesting that B sequestration may have been enhanced by higher salinity. Unexpected elevated As concentrations in the outflow (at >150 ?g/L in the treatment with labile organic carbon addition) suggest that soils not previously known to be geogenic arsenic sources have the potential to release As to groundwater in the presence of high salinity wastewater and under reducing conditions.
dc.relation.uri https://doi.org/10.2166/wst.2017.413
dc.rights © IWA Publishing 2017. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri http://iwaponline.com/content/rights-permissions
dc.subject Arsenic
dc.subject Boron
dc.subject Constructed wetlands
dc.subject Flue gas desulfurization
dc.subject Fluorescence
dc.subject Selenium
dc.title A soil column study to evaluate treatment of trace elements from saline industrial wastewater
dc.type Text
dc.date.published 2017
dc.citation.doi 10.2166/wst.2017.41
dc.citation.epage 2709
dc.citation.issn 0273-1223
dc.citation.issue 10
dc.citation.jtitle Water Science and Technology
dc.citation.spage 2698
dc.citation.volume 76
dc.citation Paredez, J. M., Mladenov, N., Galkaduwa, M. B., Hettiarachchi, G. M., Kluitenberg, G. J., & Hutchinson, S. L. (2017). A soil column study to evaluate treatment of trace elements from saline industrial wastewater. Water Science and Technology. https://doi.org/10.2166/wst.2017.413
dc.description.embargo 2018-01-31
dc.contributor.authoreid buddhika
dc.contributor.authoreid ganga
dc.contributor.authoreid gjk
dc.contributor.authoreid sllhutch
dc.description.version Article: Author's Version
dc.contributor.kstate Paredez, Jose M.
dc.contributor.kstate Galkaduwa, Madhubhashini B.
dc.contributor.kstate Hettiarachchi, Ganga M.
dc.contributor.kstate Kluitenberg, Gerard J.
dc.contributor.kstate Hutchinson, Stacy L.


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