Application of steel slag coated with sodium hydroxide to enhance precipitation-coagulation for phosphorus removal.

@article{Park2017ApplicationOS,
  title={Application of steel slag coated with sodium hydroxide to enhance precipitation-coagulation for phosphorus removal.},
  author={Taejun Park and Vanvimol Ampunan and Sungkyu Maeng and Eunhyea Chung},
  journal={Chemosphere},
  year={2017},
  volume={167},
  pages={91-97}
}
Phosphorus removal has been studied for decades to reduce the environmental impact of phosphorus in natural waterbodies. Slag has been applied for the phosphorus removal by several mechanisms. In this study, sodium hydroxide coating was applied on the slag surface to enhance the efficiency of precipitation-coagulation process. In the batch test, it was found that the capacity of the slag to maintain high pH decreases with increasing its exposure time to the aqueous solution. In the column test… CONTINUE READING