Study on the Preparation of Polyaluminum Ferric Chloride from Gangue
Gao Baoyu et al.(Dept.of Environ.Eng.,Shandong University,Jinan 250100)
Ployaluminum ferric chloride(PAFC),a new type of inorganic flocculant,was prepared by gangue.a kind of waste from coal-mine,and hydrochloric acid as raw materials.The structure of PAFC was studied by transmission electron microscope(TEM),IR spectroscopy and X-ray diffraction.The effect of PAFC in industrial wastewater treatment was tested.The experimental results showed that it is feasible to prepare PAFC from ganguej PAFC produced is the compound of polyaluminum chloride and polyferric chloride.After the wastewaters from coal-mine and oilfield were treated with PAFC in 40 mg/L,the removal ratios of COD,SS and oil are about08%,90% and90% respectively.
【CateGory Index】： X750.3