油页岩废渣制备聚合硅酸铝铁絮凝剂研究-研究中心.PDF

油页岩废渣制备聚合硅酸铝铁絮凝剂研究 鑫 （抚顺矿业集团，工程技术研究中心， 抚顺 113008 ） 摘要： 复合型无机高分子絮凝剂聚合硅酸铝铁是以油页岩废渣为原料制备的絮凝剂。 研究了稳定剂及 NaOH 对絮凝剂处理含油废水性能影响。实验结果表明，添加稳定剂样品 有大量的H O (Al(H O) (SO ) )，少量的Mg Al Si O 和Mg Fe Al Si O 生成。NaOH 5 2 2 2 4 2 2 14 5 18 1.4 0.66 3.96 5.04 18 活化样品有MgFe (SO ) (OH) (H O) 和Na Al Si O (H O) 生成。两样品中均存在一定 4 4 6 2 2 20 12.8 7.2 16.8 48 2 6 量的H O Fe(SO ) (H O) 。添加稳定剂样品水中油去除率随着絮凝剂投加量的增加而增加， 5 2 4 2 2 2 当投加量为98mg/L 时，水中油的去除率达到76.3 1%。而后随着絮凝剂投加量的增加，水中 油去除率下降。当投加量为 114mg/L 时，水中油去除率增加。氢氧化钠活化样品水中油去 除率随着絮凝剂投加量的增加先增加后减少。最佳投加量为 114mg/L ，水中油去除率为 86.7% 。相同投加量絮凝剂处理效果的顺序是NaOH 活化样品添加稳定剂样品市购样品。 市购的样品的最佳投加量 114mg/L。 关键词： 无机高分子絮凝剂；聚合硅酸铝铁；稳定剂；水中油 Abstract：polysilicate aluminum ferrite was prepared with oil shale waste as raw material, which is composite macromolecular flocculant. Research on the influences of stabilizer and sodium hydroxide on oily wastewater treatment performance. Results showed that there are plenty of H O (Al(H O) (SO ) ) and a few of Mg Al Si O and Mg Fe Al Si O in the samples 5 2 2 2 4 2 2 14 5 18 1.4 0.66 3.96 5.04 18 of adding stabilizer. There are MgFe (SO ) (OH) (H O) and Na Al Si O (H O) in the 4 4 6 2 2 20 12.8 7.2 16.8 48 2 6 samples activated by sodium hydroxide. There are some of H O Fe(SO ) (H O) in these samples. 5 2 4 2 2 2 With dosing quantity of flocculant of adding stabilizer increasing, removal ratio of oil in water increase. removal ratio is 76.31%, when dosing quantity is 98mg/L. with dosing quantity of flocculant Continue to increase, removal ratio of oil in water decrease. Removal