Research and Application of Crystallization Technology in Treating Phosphorus Wastewater
- DOI
- 10.2991/iceep-17.2017.72How to use a DOI?
- Keywords
- phosphorus wastewater; crystallization; principle; influencing factors.
- Abstract
At present, the crystallization method has become a hotspot in the field of wastewater treatment. The crystallization method not only remove phosphorus effectively in wastewater, but the phosphorus also can be recycled. The crystallization method includes ammonium magnesium phosphate crystallization method, calcium hydroxy calcium phosphate crystallization method, vivianite crystallization method and so on. The study introduced the principle of phosphorus removal and the influencing factors of the three crystallization methods, and discussed the effects of pH, ion concentration and stirring conditions on the crystallization. pH has the greatest influence on crystallization among of them. The best pH of the vivianite crystallization is between 7 and 9, and it is easier to form crystals in the general wastewater than MAP and HAP. In a certain concentration range, the phosphorus removal rate increased with the increase of ion concentration. In the case of air stirring or cyclical stirring, crystallization can be instantly formed, effectively increasing the crystallization rate. Finally, the application prospect of crystallization method in the treatment of phosphorus wastewater is prospected, which provides technical and theoretical support for the removal and recovery of phosphorus in wastewater.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Renzhen Cheng AU - Liping Qiu AU - Liquan Lu AU - Mengfei Hu AU - Zeyu Tao PY - 2017/06 DA - 2017/06 TI - Research and Application of Crystallization Technology in Treating Phosphorus Wastewater BT - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017) PB - Atlantis Press SP - 407 EP - 410 SN - 2352-5401 UR - https://doi.org/10.2991/iceep-17.2017.72 DO - 10.2991/iceep-17.2017.72 ID - Cheng2017/06 ER -