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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Journal Article

期刊文章

Simultaneous removal of cadmium ions and phenol with MEUF using SDS and mixed surfactants  [2011]

Li, Xue; Zeng, Guang-Ming; Huang, Jin-Hui; Zhang, Dong-Mei; et al.

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Micellar-enhanced ultrafiltration (MEUF) is a promising technology to remove metal ions and organic contaminants simultaneously from wastewater. A laboratory experiment was conducted to evaluate the efficiency of a MEUF operation for the removal of Cd²⁺ and phenol using pure SDS and mixed surfactants (Triton X-100/SDS). In pure SDS system, with the increase of the feed SDS concentration, a significant rise in Cd²⁺ rejection was obtained, which peaked at 97.0% with initial SDS concentration being 8.0mM. Nevertheless, the phenol rejections only kept moderately increasing from 14.5% to 40.0%. In mixed Triton X-100/SDS system, the rejections of Cd²⁺ and phenol were both enhanced by the moderate addition of nonionic surfactant for the same total feed surfactant concentration as the pure SDS system. With the increase of the molar ratios of Triton X-100 to SDS (α), Cd²⁺ rejection increased slightly with α ranging from 0 to 0.8, and peaked at 91.3%. And the phenol rejection kept increasing from 27.7% to 42.4% when α was less than 1.0 followed by slight decrease to 40.2% at α=1.5. Moreover, the SDS dosage and the surfactant(s) concentration in permeate were reduced efficiently. The permeate flux of MEUF with mixed surfactants was lower than that with pure SDS.
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书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
2015
卷:
276
期:
1-3
起始页:
136
结束页:
141
出版者:
Elsevier B.V.
所有题名:
" Simultaneous removal of cadmium ions and phenol with MEUF using SDS and mixed surfactants "

来自期刊

Desalination

ISSN : 0011-9164