SUXiao,HANHong-da,HUJian-kun,et al.Pre-oxidation Combined with Powdered Activated Carbon Enhanced Coagulation-Sedimentation for Removal of 2-Methylisoborneol in Water from Luanhe Diversion Project[J].China Water & Wastewater,2023,39(21):27-33.
Pre-oxidation Combined with Powdered Activated Carbon Enhanced Coagulation-Sedimentation for Removal of 2-Methylisoborneol in Water from Luanhe Diversion Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第21期
Page:
27-33
Column:
Date of publication:
2023-11-01
- Keywords:
- water from Luanhe Diversion Project; 2-methylisoborneol (2-MIB); pre-oxidation; powdered activated carbon; coagulation-sedimentation
- Abstract:
- The conventional coagulation-sedimentation, oxidation, powdered activated carbon (PAC) adsorption and pre-oxidation combined with PAC enhanced coagulation-sedimentation were employed for the removal of 2-methylisoborneol (2-MIB) in water from Luanhe Diversion Project in Tianjin, so as to solve the odor problem caused by excessive 2-MIB in water. Coagulation-sedimentation, oxidation and PAC adsorption showed different removal effect for different forms of 2-MIB, but 2-MIB could not be effectively removed by these three single technologies. The NaClO/KMnO4/O3+PAC+coagulation-sedimentation combined process demonstrated good removal effect for 2-MIB in water from Luanhe Diversion Project, among which the O3+PAC+coagulation-sedimentation process was the best. Combined with the field situation, the NaClO and PAC combined process was employed in practical application, and the NaClO+PAC+PAC process (PAC was added in two positions) demonstrated a good performance for removal of 2-MIB in water from Luanhe Diversion Project, which ensured the safe operation of water supply in winter of Tianjin, and provided reference for dealing with 2-MIB pollution in water from Luanhe Diversion Project.
Last Update:
2023-11-01