Journal of Ecology and Rural Environment ›› 2020, Vol. 36 ›› Issue (7): 914-920.doi: 10.19741/j.issn.1673-4831.2019.0534

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FEEM Analysis of Fulvic Acid Pretreatment by Advanced Oxidation Processes.

LIU Dan1,2, LI Lu2, SONG Kang2, ZHOU Xiao-hong1   

  1. 1. School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China;
    2. Center for Water Environment Engineering, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
  • Received:2019-07-11 Online:2020-07-25 Published:2020-07-18

Abstract: Removing fulvic acid from surface water using conventional drinking water treatments is difficult and generates harmful disinfection byproducts during the disinfection process. In this study, ultraviolet (UV), peroxydisulfate (PDS), and H2O2 treatments were applied as advanced oxidation processes (AOP) for degrading fulvic acid. The degradation performances of the different AOPs in treating fulvic acid were compared. The fluorescence excitation emission matrix (FEEM) spectroscopy results indicate that the UV/PDS co-treatment can effectively remove recalcitrant fulvic acid within 10 min, which can reduce the odor and color problems caused by fulvic acid and mitigate disinfection byproduct generation in the follow-up disinfection process.

Key words: fulvic acid, ultraviolet(UV) radiation, peroxydisulfate(PDS), H2O2, fluorescence excitation emission matrix (FEEM)

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