【摘 要】
：
以FeSO.47H2O为原料,NaClO3氧化法制备出聚合硫酸铁,并用Ce3+与其进行复合得到复合絮凝剂.运用紫外光谱及傅里叶红外光谱对絮凝剂样品进行了表征,并通过CODCr去除率和浊度去
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以FeSO.47H2O为原料,NaClO3氧化法制备出聚合硫酸铁,并用Ce3+与其进行复合得到复合絮凝剂.运用紫外光谱及傅里叶红外光谱对絮凝剂样品进行了表征,并通过CODCr去除率和浊度去除率考察了絮凝剂处理油田废水的性能.结果表明,Ce3+与聚合硫酸铁复合以后,Ce3+与聚合硫酸铁中的羟基作用形成了新的化学键Ce—OH—Fe,实现了Ce3+与聚合硫酸铁的成功复合.该复合絮凝剂对油田废水的处理效果均优于聚合硫酸铁,当复合比为1.5%时处理效果最好,CODC r去除率和浊度去除率均接近或高于90%,表现出良好的应用前景.
FeSO47H2O as raw material, NaClO3 oxidation process to prepare polymeric ferric sulfate, Ce3 + and its composite compound flocculant.Using UV spectroscopy and Fourier transform infrared spectroscopy flocculant samples were characterized by CODCr removal rate and turbidity Degree of removal rate of flocculant oil field wastewater treatment results show that Ce3 + and the composite ferric sulfate compound, Ce3 + and the polymeric iron sulfate role in the formation of a new chemical bond Ce-OH-Fe, Ce3 + and the polymerization of sulfuric acid Iron complex compound.The composite flocculant has better treatment effect on oilfield wastewater than polyferric sulfate, and when the compounding ratio is 1.5%, the treatment effect is the best, and the removal rate of CODCr and turbidity are both close to or higher than 90% , Showing a good application prospects.
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