TY - JOUR ID - TI - Interaction of PACls with sulfate AU - XU Yi AU - WANG Dong-Sheng AU - TANG Hong-Xiao VL - 16 IS - 3 PB - SP - 420 EP - 422 PY - JF - Journal of Environmental Sciences JA - J. Environ. Sci. UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=20040315&flag=1 KW - PACl; sulfate; Al13; kinetic; separation KW - PACl; sulfate; Al13; kinetic; separation AB - 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, undergoes slow crystallization. And Ala, monomers, reacts 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. ER -