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Characterization of dissolved organic carbon and disinfection by-products in biochar filter leachate using orbitrap mass spectrometry.
Youngwilai, Atcharaporn; Phungsai, Phanwatt; Supanchaiyamat, Nontipa; Hunt, Andrew J; Ngernyen, Yuvarat; Ratpukdi, Thunyalux; Khan, Eakalak; Siripattanakul-Ratpukdi, Sumana.
Affiliation
  • Youngwilai A; Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand.
  • Phungsai P; Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand.
  • Supanchaiyamat N; Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
  • Hunt AJ; Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
  • Ngernyen Y; Department of Chemical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand.
  • Ratpukdi T; Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand.
  • Khan E; Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA.
  • Siripattanakul-Ratpukdi S; Department of Environmental Engineering, Faculty of Engineering and Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen 40002, Thailand; Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand. Electronic address: sumana
J Hazard Mater ; 424(Pt C): 127691, 2022 02 15.
Article in En | MEDLINE | ID: mdl-34775314
ABSTRACT
Biochar is a low-cost adsorbent with considerable potential for utilization as a water filtration medium; however, organic matter leaching from biochar can lead to the formation of disinfection by-products (DBPs). This study investigated the leaching of dissolved organic carbon (DOC) from eucalyptus-derived biochar and the formation of DBPs generated by chlorination and chloramination. Column experiments with empty bed contact times (EBCTs) of 10 and 30 min were conducted for 200 bed volumes (BVs). The highest DOC concentration (3.5 µg-C/g-biochar) was detected with an EBCT of 30 min. Chloroform (49 µg/L) and dichloroacetonitrile (7 µg/L) because of chlorination were found during the first five BVs, but were reduced thereafter. During the first 10 BVs, unknown chlorinated DBPs generated (CHOCl) by chlorination and chloramination (193 and 152 formulae, respectively) were tentatively identified via an unknown screening analysis. The release of DBP precursors from biochar tentatively identified in this study will impact water filtration applications.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Water Pollutants, Chemical / Water Purification / Disinfectants Language: En Journal: J Hazard Mater Journal subject: SAUDE AMBIENTAL Year: 2022 Document type: Article Affiliation country: Tailandia
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Water Pollutants, Chemical / Water Purification / Disinfectants Language: En Journal: J Hazard Mater Journal subject: SAUDE AMBIENTAL Year: 2022 Document type: Article Affiliation country: Tailandia