Abstract
Porous iron hydroxy phosphate was prepared by hydrothermal purification, ball milling modification, hydrothermal crystallization and high temperature roasting of phosphating slag, and was used to treat lead-containing wastewater. The adsorbent was characterized by XRD, SEM, FTIR and TG, and the effect of the amount of adsorbent and the pH value of the system on the adsorption performance of PIHP was investigated. The results showed that when the amount of PIHP added was 0.5g, the removal rate of pb2+ could reach 91% after 120min. When the amount of PIHP added was 0.2 g and the pH of the system was 2.15, the removal rate of pb2+ after 120min could reach 95%. This research has opened up a new direction for the resource utilization of phosphating slag.
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