Title: Adsorptive characteristics of trace phosphorus in water on a new adsorption
Abstract: The adsorbent was obtained by wheat straw which was firstly chemical modified by alkaline solution under the ultrasonic pretreatment at high temperatures by epichlorohydrin and aluminum.The adsorbent were analyzed by characterizated technologies,and their adsorption capacities,adsorption isotherm in the adsorption process were evaluated in batch experiments.In the characterization analysis of the adsorbent,the modified straw in the degree of order and crystallinity had been significantly improved.Furthermore,the adsorbent structures had been successfully introduced aluminum ion.The summary in the main mechanism of removal of phosphate by the modified straw was physical adsorption depending on concave-convex shaped structure,chemical adsorption such as hydrogen bonds effect and coordination-complexation reaction because of hydroxyl groups,their surface potential was useful for phosphate anions adsorption.It also had spatial netting,which had the generation of mixed-phosphate crystals.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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