Document Detail


Enhanced oil-mineral aggregation with modified bentonite.
MedLine Citation:
PMID:  23552248     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The application of modified-bentonite-enhanced oil dispersion in water and oil-mineral aggregate (OMA) formation was studied in the laboratory. The effect of modification on the surface properties of bentonite was characterized. The hydrophobicity and surface electric properties of bentonite were significantly improved by attaching cetyltrimethyl ammonium bromide to its surface. The results showed that surface properties of bentonite played an important role in OMA formation. Spherical droplets of OMAs were formed with natural bentonite and elongated solid OMAs and flake OMAs were formed with modified bentonite as observed by fluorescence microscopy. The effects of shaking time, oil concentration and mineral content were also studied. It was suggested that oil concentration and mineral content were critical factors and OMA formed rapidly with both types of bentonite. Modified bentonite had better performance on OMA formation than hydrophilic natural bentonite.
Authors:
Li Chen; Yanbo Zhou; Xiaoqian Wang; Thomas Zwicker; Jun Lu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  67     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2013  
Date Detail:
Created Date:  2013-04-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1581-9     Citation Subset:  IM    
Affiliation:
College of Resource & Environmental Engineering, East China University of Science & Technology, Shanghai 200237, China E-mail: lujun@ecust.edu.cn.
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