WANGYong-qiang,LIGui-fang,SONGWu-chang,et al.Removal Characteristics of Organic Matter in Effluent from Conventional Sand Filtration by UV/H2O2 Process[J].China Water & Wastewater,2022,38(17):60-66.
Removal Characteristics of Organic Matter in Effluent from Conventional Sand Filtration by UV/H2O2 Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第17期
Page:
60-66
Column:
Date of publication:
2022-09-01
- Keywords:
- UV/H2O2 process; organic matter; 2-methylisoborneol (2-MIB); trihalomethane formation potentials
- Abstract:
- The change of organic matter properties in UV/H2O2 treatment process is still not clear. The UV/H2O2 pilot-scale system with scale of 5 m3/h was constructed to treat the effluent from sand filtration of a water treatment plant (Yellow River diversion reservoir raw water, conventional treatment process). The long-term operational results showed that the H2O2 utilization rate was approximately 46%, and the average removal efficiencies of CODMn and UV254 were 5.7% and 50.3% respectively. When the spiked concentration of 2-methylisoborneol was 110 ng/L, its removal efficiency was almost 100%. The molecular weight distribution, three-dimensional fluorescence spectrum, component of dissolved organic matter (DOM) and trihalomethane formation potentials (THMFPs) in influent and effluent of the process were analyzed. The process could degrade the macromolecular organic matter in water into small molecule organic matter, reduce fluorescence substance concentrations and aromatic, decrease DOM components content and change their proportions, and slightly increase THMFPs.
Last Update:
2022-09-01