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Effect of different natural organic matter fractions on the ozonation of micropollutants.
- Source :
- Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban; 2010, Vol. 42 Issue 6, p910-913, 4p, 1 Chart, 4 Graphs
- Publication Year :
- 2010
-
Abstract
- By fractioning natural organic matters (NOM) sourced from Songhua River with series of ultra membranes, the effect of each fraction on the degradation of BPA and NB by ozonation was investigated. It was found that the introduction of NOM fractions exept for NOM<subscript>5K-10K</subscript> and NOM<subscript>3K-5K</subscript> slightly decreased the removal efficiency of BPA which is highly reactive with ozone. On the contrary, for the refractory organic pollutant NB, NOM fractions, especially the fractions with high molecular weight (NOM<subscript>> 10K</subscript>, NOM<subscript>5K -l0K</subscript>, NOM<subscript>3K-5K</subscript> , and NOM<subscript>1K -3K</subscript>) , promoted its de radation due to the enhancement of chain reaction which is accompanied by the formation of hydroxyl radical, and the extent of promotion depended on the types and amounts of functional groups contained in NOM fractions. By fractioning natural organic matters (NOM) sourced from Songhua River with series of ultra membranes, the effect of each fraction on the degradation of BPA and NB by ozonation was investigated. It was found that the introduction of NOM fractions exept for NOM<subscript>5K-10K</subscript> and NOM<subscript>3K-5K</subscript> slightly decreased the removal efficiency of BPA which is highly reactive with ozone. On the contrary, for the refractory organic pollutant NB, NOM fractions, especially the fractions with high molecular weight (NOM<subscript>> 10K</subscript>, NOM<subscript>5K -l0K</subscript>, NOM<subscript>3K-5K</subscript> , and NOM<subscript>1K -3K</subscript>) , promoted its de radation due to the enhancement of chain reaction which is accompanied by the formation of hydroxyl radical, and the extent of promotion depended on the types and amounts of functional groups contained in NOM fractions. [ABSTRACT FROM AUTHOR]
- Subjects :
- ORGANIC compounds
OZONIZATION
POLLUTANTS
MOLECULAR weights
HYDROXYL group
Subjects
Details
- Language :
- Chinese
- ISSN :
- 10091971
- Volume :
- 42
- Issue :
- 6
- Database :
- Supplemental Index
- Journal :
- Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban
- Publication Type :
- Academic Journal
- Accession number :
- 54422646