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Water quality is one of the main concerns of drinkers, most membrane filtration technology can remove contaminants, but it also removes the benefical elements in the water. Raw water quality was analysed in the study. Then the nanofiltration membrane removal test was performed, all the three kinds of experimental nanofiltration membranes could effectively remove nitrate, sulfate, chloride, and reduce total dissolved solids (TDS) and hardness. The results showed that H70 was more suitable for the current water quality, whcih could optimize the water quality, while retain 80% metasilicic acid and the appropriate of mineral elements in the raw water. When H70 was used in produciton, the production results were basically in line with the test results. The beneficial elements in the raw water were retained.

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Optimization and Application of Nanofiltration Purification Process of Jinan Spring Groundwater

  • 会议论文

  • 发表日期：

    2025年

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  • Yanju Zhang,
  • Peng Wang,
  • Wenhai Gao,
  • Ying Qi,
  • Zhe Yu,
  • Jinsong Li

摘要

Water quality is one of the main concerns of drinkers, most membrane filtration technology can remove contaminants, but it also removes the benefical elements in the water. Raw water quality was analysed in the study. Then the nanofiltration membrane removal test was performed, all the three kinds of experimental nanofiltration membranes could effectively remove nitrate, sulfate, chloride, and reduce total dissolved solids (TDS) and hardness. The results showed that H70 was more suitable for the current water quality, whcih could optimize the water quality, while retain 80% metasilicic acid and the appropriate of mineral elements in the raw water. When H70 was used in produciton, the production results were basically in line with the test results. The beneficial elements in the raw water were retained.