Mixotrophic Denitrification of Glucose Polymer-Based Pyrite Tailings for Enhanced Nitrogen and Phosphorus Removal of Municipal Tailwater

In order to improve the removal ability of nitrogen and phosphorus pollutants from sewage with low C/N ratio, this study prepared glucose polymer-based pyrite tailings core-shell structure through polymerizing on surface particles constructed a heterotrophic-sulfur autotrophic mixed-denitrification system. The experimental results show that compared ordinary tailings, modified by polymer can water quality pH, enhance remove NO3− in water, prolong mineral continuously treat sewage, which also has good effect PO43− water. are great significance solve excessive secondary effluent alleviate eutrophication natural