Study on adsorption of phosphate from aqueous solution by zirconium modified coal gasification coarse slag.

ABSTRACT: Zr-modified materials have an adsorption affinity for phosphate ions, but because of the cost of carrier materials, they are difficult to apply on a large scale. Herein, coal gasification coarse slag (CGCS) was used as a carrier material and modified with Zr, and its dephosphorization performance was studied. A series of adsorbents with different CGCS/ZrOCl₂·8H₂O mass ratios were prepared, from which the adsorbent with a CGCS/ZrOCl₂·8H₂O mass ratio of 5 : 4 (denoted as CGCS-Zr4) was identified as the most promising for phosphate adsorption. The specific surface area of CGCS-Zr4 was much greater than that of raw CGCS (100.12 vs. 12.43 m² g^-1). CGCS-Zr4 showed good adsorption selectivity towards phosphate when competiti

SUBMITTER: Yang B 

PROVIDER: S-EPMC9179347 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature