Linked Life Data

17489191

Source:http://linkedlifedata.com/resource/pubmed/id/17489191

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2007-5-10
pubmed:abstractText
gamma-Alumina was used as a catalyst in ozonation, and efficiency and influencing factors in degradation of taste and odor substance 2-methylisoborneol (MIB) in drinking water were studied. The result shown that gamma-alumina was activated in catalytic ozonation for degradation MIB not only in distilled water, but also in tap water. In distilled water condition, catalyzed ozonation could enhance 47% removal efficiency; in tap water condition, catalyzed ozonation could increase 40% removal efficiency. The concentration of ozone, gamma-alumina, MIB can affect the degradation of MIB observably. gamma-Alumina catalyzed ozonation for removing MIB did not depend on rigidity in water, but was affected by inorganic negative ions. By capturing the hydroxyl radicals produced by gamma-alumina catalyzed ozone decomposition, the bicarbonate/carbonate in natural water can restrain the effect of gamma-alumina catalyzed ozonation for degradation of MIB. Lower concentration of humic acid can promote the effect of oxidation of the MIB, but higher concentration of humic acid may reduce the efficiency. As pH values can affect the process of catalyzed ozonation and tert-butyl alcohol can inhibit the efficiency of catalyzed ozonation efficiency of MIB, the mechanism of gamma-alumina enhanced ozone oxidation of MIB can be identified as that gamma-alumina catalyzed ozone to decompose into hydroxyl radicals which further break up the molecule of MIB.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0250-3301
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
322-8
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
[Gamma-Al2O3 catalyzed ozonation for removing taste and odor substance 2-methylisoborneol in drinking water].
pubmed:affiliation
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. zhonglinchen@hit.edu.cn
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't