Distribution of aluminum species and the characteristics of structure of poly-aluminum-chloride-sulfate (PACS)
  • 【DOI】

    10.3321/j.issn:1001-0742.2001.01.018

  • 【摘要】

    A series of poly-aluminum-chloride-sulfate (PACS), which have different basicities (γ) and Al3+/SO42- molar ratio, have prepared and dried at 105℃ and 65℃, respectively. The distribution of aluminum s... 展开>>A series of poly-aluminum-chloride-sulfate (PACS), which have different basicities (γ) and Al3+/SO42- molar ratio, have prepared and dried at 105℃ and 65℃, respectively. The distribution of aluminum species of PACS was examined, and the effect of γ value, Al3+/SO42- molar ratio, dilution on the distribution of aluminum species of PACS was also investigated by using Al-ferron timed complex calorimetric method. The IR spectroscopy and X-ray diffraction were used to study the effect of γvalue, Al3+/SO42- molar ratio and the drying temperature on the structure of PACS. The experimental results show that Al3+/SO42-molar ratio has a great effect on the distribution of aluminum species, but the dilution has a little effect on the distribution of aluminum species. The lower the Al3+/SO42- molar ratio, the higher the proportions of the polymer and colloidal species in PACS. The polymeric degree of PACS was related to value and Al3+/SO42- molar ratio. Drying temperature has an influence on the structure and thesolubility of solid PACS products. 收起<<

  • 【作者】

  • 【作者单位】

    Department of Environmental Engineering

  • 【刊期】

    环境科学学报(英文版) ISTIC SCI 2001年1期