Feasibility of nanoscale zerovalent iron-loaded sediment-based biochar (nZVI-SBC) for simultaneous removal of nitrate and phosphate: high selectivity toward dinitrogen and synergistic mechanism

In the process of water treatment, excessive nitrogen and phosphorus pollutants are great concern. Therefore, we prepared nanoscale zerovalent iron loaded on sediment-based biochar (nZVI-SBC) to conduct nitrate phosphate removal at same time. The characterization demonstrated that nZVI-SBC was successfully synthesized, which had obvious advantages for larger specific surface area better dispersion compared with pure nZVI. batch experiments indicated best loading ratio nZVI SBC optimum dosage were 1:1and 2 g L−1, respectively. Their by an acid-driven process. Anoxic environment more conducive reduction while fond oxygen environment. A total 77.78% 99.21% have been removed, mainly depending complexation mechanism, Moreover, higher N2 selectivity produced less ammonium than interaction between studied manifest they different degrees inhibition during other. Our research has potential remediation polluted water.