BAORenbing,LIPengcheng,JIAXuchao,et al.Pilot Study on High-quality Drinking Water Treatment Technology for Lake-Reservoir Type Water Sources in Lower Reaches of the Yangtze River[J].China Water & Wastewater,2026,42(11):8-15.
Pilot Study on High-quality Drinking Water Treatment Technology for Lake-Reservoir Type Water Sources in Lower Reaches of the Yangtze River
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第11期
Page:
8-15
Column:
Date of publication:
2026-06-01
- Keywords:
- lake-reservoir type water source; high-quality drinking water; carbon dioxide; ozone-activated carbon; ultrafiltration; nanofiltration
- Abstract:
- In response to the high pH, high algae, and complex organic matter characteristics of lake-reservoir type water sources in the lower reaches of the Yangtze River, a pilot-scale test with a capacity of 120 m3/d was conducted to systematically evaluate the treatment efficacy and risk control capability for key water quality indicators of different treatment processes. The study focused on the synergistic control mechanisms of “carbon dioxide + pre-ozonation” pretreatment combined with “ozone-activated carbon” and “ultrafiltration/nanofiltration” advanced treatment processes for turbidity, residual aluminum, organic matter, and odor-causing substances. The results demonstrated that adjusting the raw water pH to 7.2-7.6 using carbon dioxide significantly optimized aluminum speciation distribution, reducing residual aluminum in sand-filtered effluent to below 0.15 mg/L. The combined process of “ozone-activated carbon + ultrafiltration” achieved removal rates of over 99.4% for turbidity, 60% for permanganate index, and 85% for 2-MIB, with stable and superior treated water quality. Based on comprehensive technical and economic analysis, the “carbon dioxide + pre-ozonation + coagulation-sedimentation + sandfiltration + ozone-activated carbon + ultrafiltration” process is recommended as the core treatment train for high-quality drinking water treatment process. This multi-barrier system effectively controls bromate formation risks while exhibiting strong resistance to shock loads, providing crucial technical support for the selection of high-quality water supply processes for lake-reservoir type water sources in the lower Yangtze River region.
Last Update:
2026-06-01