Method of Preparing Adsorbent for Phosphorus Adsorption and Adsorbent Prepared by the Same
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United States of America Patent
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Jun 1, 2017
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Jul 27, 2016
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Nov 26, 2015
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Abstract
The present invention relates to a method for preparing an adsorbent for phosphorus adsorption and an adsorbent prepared by the method. Specifically, according to the present invention, the surface of conventional expanded vermiculite, which is effective for removal of cations but is not effective for removal of anions, is coated with sulfate to modify the surface, thereby preparing an adsorbent for phosphorus adsorption. Namely, the surface of expanded vermiculite is ionized by sulfate to thereby significantly increase the efficiency with which the anion phosphorus is removed by the expanded vermiculite. In addition, a floating-type adsorbent can be prepared using the expanded vermiculite as described above, and thus it can be quickly separated from water after adsorption without requiring a process for separating the absorbent from water.
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