Abstract: The morphological structure and characterization of the polymeric aluminum ferric chloride calcium(PAFCC) flocculant were studied using TEM，EDS，IR spectroscope and Xray diffraction analysis techniques. The morphology，feature groups and microcrystalline phase structure of noncalcined synthetic products and calcined synthetic PAFCC products were compared. The results showed that the calcined products are silicic acid (aluminum) substance with high activity and the noncalcined synthetic products are compound mainly contained sodium，aluminium，iron，calcium，chlorine and other elements with short columnar crystal morphology. PAFCC has hollow tube of columnar crystals morphology and it is an inorganic polymer which has chloride，aluminum ferric polyhydroxy. The calcination process enhanced coal gangue activity and played an important role in the synthesis process of PAFCC. Using kaolin wastewater，the coagulation effect of PAFCC is superior to that of noncalcined synthetic products and PAC.

Key words: morphology, feature groups, structure, microcrystalline phase, PAFCC