Abstract
This study investigated the quantity and quality of dissolved organic matter (DOM) released from wetland-plant derived biochar under various extracting conditions (deionized water, 0.1 mol/L HCl, 0.1 mol/L NaOH, and 0.1 mol/L NaCl) by using fluorescence excitation-emission matrix (EEM) spectrophotometry with parallel factor analysis (PARAFAC). Concentrations of dissolved organic carbon (DOC) released from biochar extracted in different extracting solutions ranged from 0.69 g/L to 1.22 g/L with the total contents of 13.7–23.5 g DOC/kg. The average DOC content was highest in the alkaline solution and lowest in the deionized water. Three humic acid-like substances, one fulvic acid-like substance and one tyrosine-like substance were identified. The distributions of the identified components in DOM were distinctively different among various extracts, and humic acid-like components were the dominant materials. The extraction conditions could affect significantly humic acid-like and fulvic acid-like fluorescence. The results would be beneficial to understand the biochar's effects and processes in possible environmental applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
