Research on Quality Control and Application Conditions of Pyrite for Deep Denitrification and Phosphorus Removal
Pyrite is a mineral with relatively abundant reserves in nature.This article conducted phosphorus removal experiments on 22 types of pyrite samples from major sulfur iron mineral areas in China,and studied the denitrification and phosphorus removal effects of pyrite under different dissolved oxygen conditions and microbial concentrations.The results show that there is a high positive correlation between the phosphorus removal ability of pyrite and its total iron content,Iron content＞35%can be used as a quality control parameter for pyrite used in denitrification and phosphorus removal processes;The removal of total phosphorus by pyrite is not affected by microorganisms,but under high dissolved oxygen conditions,it can promote the removal of total phosphorus;Inoculating microorganisms can significantly promote the removal of total nitrogen by pyrite,and the denitrification effect is significantly improved under low dissolved oxygen conditions.
pyritedenitrificationphosphorus removalquality control
万方数据
维普
