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Degradation of AR 97 aqueous solution by combination of ultrasound and Fenton reagent
Author(s) -
Li JiTai,
Song YaLi
Publication year - 2010
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.10375
Subject(s) - reagent , aqueous solution , degradation (telecommunications) , chemistry , fenton's reagent , sonochemistry , nuclear chemistry , fenton reaction , hydrogen peroxide , organic chemistry , telecommunications , computer science
An efficient and convenient degradation of AR 97 (C.I. Acid Red 97) in aqueous solution by the combination of ultrasound and Fenton reagent was reported. The various affecting factors were studied. Under ultrasound, the degradation ratio is 99.9% for the initial concentration of 50 mg L −1 using 1.57 mmol L −1 H 2 O 2 , 0.054 mmol L −1 Fe 2+ at 40°C within 140 min. The combination method was more effective than sonolysis or Fenton reagent process treatment individually. In the combined process, the effect of the kind of anions (Cl − , SO 4 2− , and H 2 PO 4 − ) and Fenton‐like reagents (Cu 2+ /H 2 O 2 , Co 2+ /H 2 O 2 , and Mn 2+ /H 2 O 2 ) on degradation was also observed. Except for SO 4 2− , others had a negative effect on degradation. © 2009 American Institute of Chemical Engineers Environ Prog, 2010