Oxidation of 2-chlorophenol in water by ultrasound/Fenton method

Journal Article · Tue Feb 01 04:00:00 EST 2000 · Journal of Environmental Engineering (New York)

DOI:https://doi.org/10.1061/(ASCE)0733-9372(2000)126:2(130)· OSTI ID:20015091

Lin, J G; Ma, Y S

One of the toxic and refractory pollutants formed during the color removal of fertilizer, chemical, and petroleum industrial effluents by chlorine is 2-chlorophenol (2-cp). The objective of this study is to investigate the effect of H{sub 2}O{sub 2} and FE{sup 2+} dosages on the decomposition of 2-cp using a coupled ultrasound/FE{sup 2+}/H{sub 2}O{sub 2} process. The extent of 2-cp decomposition and mineralization depends on the dosages of H{sub 2}O{sub 2} and Fe{sup 2+}. More than 99% of 2-cp was decomposed and 86% of 2-cp was mineralized using the ultrasound/Fe{sup 2+}/H{sub 2}O{sub 2} process at Fe{sup 2+} of 10 mg/L and H{sub 2}O{sub 2} of 500 mg/L. Oxidation-reduction potential (ORP) monitoring is a useful method for determining the decomposition efficiency of the target compound. There was a slight increase in the ORP values with increasing Fe{sup 2+} dosages, and an apparent increase with increasing H{sub 2}O{sub 2} dosages was observed. The major intermediate formed during the decomposition of 2-cp was 2-chloro-p-benzoquinone. It was also readily decomposed using the coupled ultrasound/Fe{sup 2+}/H{sub 2}O{sub 2} process.

• Research Organization: National Chiao Tung Univ., Hsinchu (TW)
• OSTI ID: 20015091
• Journal Information: Journal of Environmental Engineering (New York), Journal Name: Journal of Environmental Engineering (New York) Journal Issue: 2 Vol. 126; ISSN 0733-9372; ISSN JOEEDU
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CHLORINATED AROMATIC HYDROCARBONS
HYDROGEN PEROXIDE
INDUSTRIAL WASTES
IRON
OXIDATION
ULTRASONOGRAPHY
WASTE PROCESSING
WASTE WATER
WATER POLLUTION ABATEMENT