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Degradation of Organic Pollutants by the Photo‐Fenton‐Process
Author(s) -
Kim SooMyung,
Vogelpohl Alfons
Publication year - 1998
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199802)21:2<187::aid-ceat187>3.0.co;2-h
Subject(s) - hydrogen peroxide , chemistry , pollutant , oxalate , degradation (telecommunications) , catalysis , leachate , environmental chemistry , inorganic chemistry , organic chemistry , telecommunications , computer science
The Photo‐Fenton‐Process utilizing the combinations Fe(II)/H 2 O 2 /UVA and Fe(III) oxalate/H 2 O 2 /UVA was employed with success to degrade biorefractory organic pollutants in landfill leachate. The rate of degradation of the organic pollutants depends on the concentrations of hydrogen peroxide and the iron catalyst, the pH value and the concentration of dissolved oxygen. A comparison of the Photo‐Fenton‐Process with the H 2 O 2 /Fe(II) process and the H 2 O 2 /UVC process shows that the Photo‐Fenton‐Process gives a higher COD degradation and a reduced energy consumption of at least 30% compared to the H 2 O 2 /UVC process. By using photogenerated Fe(II) the amount of the iron catalyst required and the volume of sludge produced are strongly reduced.