用工业废渣合成聚合硫酸铝铁的研究

Preparation of polymeric aluminum ferric sulphate from industrial dross

工业废渣———物料一含大量铁离子 ,粉煤灰含较多的铝离子 ,用一步合成法可合成聚合硫酸铝铁PAFS。用合成的PAFS对浊度较大的黄河水做混凝实验 ,研究了适宜投药量 ,并与市售的两种絮凝剂进行比较。实验结果表明 ,合成的PAFS絮凝效果良好 ,值得进一步研究和推广。

The industrial dross containing a lot of Fe ions and coal ash containing many Al ions can be used to synthetize PAFS. The synthetic PAFS can be used to make a coagulation test on the Huanghe Water which has high turbidity. The optimal feeding amount added to the Huanghe water is studied. It is compared with two kinds of flocculants, market sold PAFS and PAFC. The result shows that the synthetic PAFS has the best flocculating efficiency. This kind of flocculant should be further developed and spread.