LIUShui,XIAODan,FANYaqian,et al.Pilot Study on Polyether-sulfone Hollow Fiber Nanofiltration Membranes for Residential Water Supply[J].China Water & Wastewater,2026,42(1):35-41.
Pilot Study on Polyether-sulfone Hollow Fiber Nanofiltration Membranes for Residential Water Supply
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第1期
Page:
35-41
Column:
Date of publication:
2026-01-01
- Keywords:
- hollow fiber nanofiltration membrane; secondary water supply; optimization of operational parameter; high?quality drinking water
- Abstract:
- With the growing demand for high?quality drinking water, conventional water treatment processes have limitations in ensuring healthy water quality. Pilot-scale studies were conducted using polyether-sulfone hollow fiber nanofiltration membranes as front-end water supply facilities in residential communities. By analyzing parameters such as conductivity, total dissolved solids (TDS), turbidity, and recovery rate, optimal operating conditions including water production cycle and feed water pressure were established. Membrane fouling mechanisms were investigated through three-dimensional fluorescence spectroscopy and membrane flux ratio analysis. The impact of residual chlorine on membrane performance was evaluated using scanning electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. Results showed that under 60-minute water production cycles and 0.35 MPa feed water pressure, the nanofiltration membranes achieved removal rates of 29.8% for conductivity, 24.0% for TDS, and 71.2% for turbidity, with recovery rates reaching 80% to 90%. After eight months of operation, membrane fouling showed positive correlations with water production cycle and feed pressure. Although trace chlorine was detected on the membrane when feed water contained residual chlorine, its impact on operational efficiency remained minimal. The hollow fiber nanofiltration membranes demonstrated excellent chlorine resistance.
Last Update:
2026-01-01