| Title |
Treatment of Phosphorus Species using Iron Coagulation and Fenton oxidation |
| Authors |
박성환 ( Sung Hwan Park ) ; 문병현 ( Byung Hyun Moon ) |
| DOI |
https://doi.org/10.15681/KSWE.2014.30.6.653 |
| Keywords |
Iron coagulation; Fenton oxidation; Floc size; Phosphorus removal; Phosphorus species |
| Abstract |
Effects of H2O2 addition for fenton oxidation on iron coagulation for treatment of phosphorus species, such as orthophosphate, metaphosphate, pyrophosphate, organic phosphate, were investigated. The effects of coagulant dosage, hydrogen peroxide dosage and the combined sequence ferric coagulation and H2O2 addition for fenton oxidation and coagulation were studied. The characteristics of floc growth rate were monitored using the PDA. The removal efficiencies of phosphorus species by iron coagulation were increased as Fe/P molar ratio increased. However, the removal efficiencies of metaphosphate, pyrophosphate, organic phosphate by a ferric coagulation were not increased as Fe/P molar ratio increased. The removal efficiency of metaphosphate, pyrophosphate, organic phosphate was increased by using iron coagulation and H2O2 addition for fenton oxidation. The result indicated that non-reactive phosphorus after iron coagulation was changed to reactive phosphorus by H2O2 addition for fenton oxidation and the oxidized iron enhanced the coagulation efficiencies. |