期刊
ADVANCES IN COLLOID AND INTERFACE SCIENCE
卷 143, 期 1-2, 页码 48-67出版社
ELSEVIER
DOI: 10.1016/j.cis.2008.07.002
关键词
Adsorption; Phenol; Substituted phenol; Activated carbon; Low-cost adsorbents
Adsorption techniques are widely used to remove certain classes of pollutants from wastewater. Phenolic compounds represent one of the problematic groups. Although commercial activated carbon is a preferred adsorbent for phenol removal, its widespread use is restricted due to the high cost. As such, alternative non-conventional adsorbents have been investigated. The natural materials, waste materials from industry and agriculture and bioadsorbents can be employed as inexpensive adsorbents. The review (i) presents a critical analysis of these materials: (ii) describes their characteristics, advantages and limitations; and (iii) discusses the various mechanisms involved. There are several issues and drawbacks concerned on the adsorption of phenolic compounds that have been discussed in this review article. It is evident from the review that low-cost adsorbents have demonstrated high removal capabilities for certain phenolic compounds. In particular. industrial waste might be a promising adsorbent for environmental and purification purposes. (C) 2008 Elsevier B.V. All rights reserved.
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