Sono-oxidation treatment of humic substances in drinking water

被引:61
作者
Chemat, F [1 ]
Teunissen, PGM
Chemat, S
Bartels, PV
机构
[1] Univ Reunion, Fac Sci & Technol, Lab Chim Subst Nat & Sci Aliments, 15 Ave Rene Cassin,BP 7151, F-97715 St Denis 9, Reunion, France
[2] DLO, Agrotechnol Res Inst, ATO, NL-6700 AA Wageningen, Netherlands
关键词
humic substances; hydrogen peroxide; sono-oxidation;
D O I
10.1016/S1350-4177(01)00084-0
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Currently humic substances are removed from the raw water prior to chlorination by the conventional coagulation and filtration method using aluminium sulphate. Application of high-intensity (> 10 W/cm(2)) ultrasonic irradiation in conjunction with oxidative process using commercial oxidants H2O2 was investigated as an alternative. Sono-oxidation and sonodegradation of natural and synthetic humic substances have been followed over time by measuring total organic carbon (TOC) and absorbance by ultraviolet spectrometer (UV-VIS). It took approximately 60 min to reduce TOC by half and to have a complete degradation of humic acid. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:247 / 250
页数:4
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