煤矸石制备聚合硅酸铝铁(PFASS)絮凝剂处理石油污水的试验研究

Experimental Study on PFASS Produced from Gangue and Its Effect on Oilfield Sewage

阐述了煤矸石制备聚合硅酸铝铁(PFASS)絮凝剂的原理,并以化学需氧量(COD)、水中固体悬浮物含量(SS)及色度为指标,评价了其对长庆油田采油污水处理的最佳投入量、最佳作用时间等。研究结果表明,和其他类型的絮凝剂相比,采用该工艺生产的PFASS产品对油田污水的处理效果较好,COD的去除率为79.36%,SS的去除率为84.2%,色度去除率为88.6%。利用煤矸石制备的絮凝剂处理油田污水是一种变废为宝、以废治废的好方法。

The principle of preparation of PFASS by using gangue was introduced.By examining indexes such as COD,SS and chrominance,the best dosage and operating time were evaluated for waste water from Changqing Oilfield.It shows from the experiment that:Compared with other flocculating agents,PFASS produced from the technology mentioned has a good effect on the waste water in the oilfield ,with which COD removal ratio is 79.36%,SS removal ratio is 84.2% ,and chrominance removal ratio is 84.2%; using PFASS produced from gangue to treat field water is a good way to prevent against waste.