Pilot Study on Advanced Treatment of Wastewater Produced by Pressurized Coarse Coal Gasification
- DOI
- 10.2991/icaees-15.2015.174How to use a DOI?
- Keywords
- wastewater treatment, pressurized coarse coal gasification, advanced treatment, ozonation, pilot scale
- Abstract
A Pilot study on advanced treatment of wastewater produced by pressurized coarse coal gasification was done in a coal chemical plant. The feasibility of catalytic ozonation, UV/O3, and Fenton process in the advanced treatment of wastewater produced by pressurized coarse coal gasification process was studied and catalytic ozonation was proved to be a good choice with high COD removal (55%). Furthermore, a two-stage advanced treatment process combined with advanced oxidation processes (AOPs) and biological aerated filter (BAF) was proposed to meet the requirement of ultrafiltration-reverse osmosis (UF-RO) wastewater reuse system. It was found that catalytic ozonation showed the advantage in the first stage oxidation while UV/O3 process showed the advantage in the second stage oxidation. Ultimately, we developed the interesting catalytic ozonation-BAF-UV/O3-BAF process and the effluent met the UF-RO requirement of COD<50 mg/L, which opened a new and efficient channel for pressurized coarse coal gasification wastewater treatment.
- Copyright
- © 2015, 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 - Jingzhi Zhang AU - Linlin Xing AU - Jiane Zuo AU - Anping Jiang AU - Kai Wang PY - 2015/07 DA - 2015/07 TI - Pilot Study on Advanced Treatment of Wastewater Produced by Pressurized Coarse Coal Gasification BT - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015 PB - Atlantis Press SP - 940 EP - 945 SN - 2352-5401 UR - https://doi.org/10.2991/icaees-15.2015.174 DO - 10.2991/icaees-15.2015.174 ID - Zhang2015/07 ER -