TY - JOUR AU - Jiang, S.J. AU - Feng, X.R. AU - Li, X.E. AU - Xiang, P. AU - Sheng, G.S. PY - 2013/11/12 Y2 - 2024/03/29 TI - Flocculation Performance and Shearing Capacity Study on Al30 Morphology in Polyhydroxy Aluminium JF - Asian Journal of Chemistry JA - ajc VL - 25 IS - 17 SE - Articles DO - 10.14233/ajchem.2013.15547 UR - https://asianpubs.org/index.php/ajchem/article/view/25_18_98 SP - 9875-9878 AB - <p style="text-align: justify;">As a newly discovered polyaluminum morphology after Al<sub>13</sub>, Al<sub>30</sub> is the highest charge cation of polyhydroxy aluminum so far. By comparative analyzing synthetic Al<sub>30</sub>, Al<sub>13</sub> and commercial polyaluminum chloride, test results show that Al<sub>30</sub> has optimal coagulation effect by contrasting turbidity, UV<sub>254</sub> removal efficiencies and electric neutralization capacity. The particle size analysis of flocculated kaolin micro particles shows that the three flocculants can combine with kaolin particles below 10 μm. The floc size in Al<sub>30</sub> is the largest, followed by Al<sub>13</sub> and then polyaluminum chloride, which further proved the advantage of Al<sub>30</sub> in flocculation process. The conventional jar test and the monitoring technique of floc size online are employed to investigate the shearing capacity of the flocs formed by Al<sub>30</sub>. It is found that remixing can make the broken flocs fully recovered and the particle size of recovered flocs are greatly increased, especially in Al<sub>30</sub>.</p> ER -