| Interaction of PACIs with sulfate |
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| 引用本文： | XUYi WANGDong-sheng TANGHong-xiao. Interaction of PACIs with sulfate[J]. 环境科学学报(英文版), 2004, 16(3): 420-422 |
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| 作者姓名： | XUYi WANGDong-sheng TANGHong-xiao |
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| 作者单位： | SKLEAC,ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China |
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| 摘 要： | This article discusses the influential factors on Al13 separation considering the interaction of sulfate with various polyaluminum chloride (PACI). The experimental results showed that the basicity (B = [OH]/[Al]), the concentration of PACI and Al/SO4 ratio exhibited significant roles in the PACI-sulfate reaction. It indicated that different species in various PACI underwent different reaction pathway with sulfate. The Alc, colloidal species,formed precipitation quickly with sulfate, while Alb, oligomers and polymers, underwent slow crystallization. And Ala,monomers, reacted with sulfate to form soluble complexes. The kinetic difference of reaction made it possible to realize the separation of Alb and further purification. The decrease of Ala resulted in the limit of ferron method wasalso mentioned.
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| 关 键 词： | 硫酸盐 PACIs 废水处理工艺 铝 浓度 |
Interaction of PACls with sulfate. |
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| Yi Xu,Dong-sheng Wang,Hong-xiao Tang. Interaction of PACls with sulfate.[J]. Journal of environmental sciences (China), 2004, 16(3): 420-422 |
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| Authors: | Yi Xu Dong-sheng Wang Hong-xiao Tang |
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| Affiliation: | SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. |
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| Abstract: | This article discusses the influential factors on Al13 separation considering the interaction of sulfate with various polyaluminum chloride (PACl). The experimental results showed that the basicity (B = [OH/[Al]), the concentration of PACl and Al/SO4 ratio exhibited significant roles in the PACl-sulfate reaction. It indicated that different species in various PACl underwent different reaction pathway with sulfate. The Alc, colloidal species, formed precipitation quickly with sulfate, while Alb, oligomers and polymers, underwent slow crystallization. And Ala, monomers, reacted with sulfate to form soluble complexes. The kinetic difference of reaction made it possible to realize the separation of Alb and further purification. The decrease of Ala resulted in the limit of ferron method was also mentioned. |
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