流化床粉煤灰的组成形貌及在油水分离废水处理中的应用  

Composition and Morphology of Fluidized Bed Fly Ashes and Its Application to Oil-water Separation Wastewater Treatment

作　　者：邓文叶[1,2] 谢永新[2] 李守柱[2] 赵海燕 吕任生 蔺尾燕 

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]中国科学院新疆理化技术研究所,新疆电子信息材料与器件重点实验室,中国科学院特殊环境功能材料与器件实验室,新疆乌鲁木齐830011

出　　处：《环境工程技术学报》2014年第6期462-466,共5页Journal of Environmental Engineering Technology

基　　金：国家青年基金项目(41305112);新疆维吾尔自治区青年基金项目(2013211B37);新疆维吾尔自治区青年博士科技人才培养项目(2013731020);中国科学院西部之光"西部博士"项目(XBBS201126)

摘　　要：选取2种新疆循环流化床粉煤灰(CFBFA),采用化学分析、X射线衍射分析和扫描电镜对其组成和形貌进行表征。采用氯化铁和氯化铝水溶液对CFBFA进行改性,考察改性CFBFA的粒径及投加量对新疆克拉玛依油田三采聚驱油水分离废水处理效率的影响。结果表明,CFBFA中SiO2、A12O3、Fe2O3、CaO和MgO占总质量的90%左右,其玻璃相含量较低,颗粒形状多数不规则,表面粗糙;粒径≤0.074 mm的改性CFBFA对油水分离废水中油的去除效果最好;随着粉煤灰投加量的增加去油率上升,投加量达0.1 g/mL时去油率达90%以上。The composition and morphology of two kinds of circulating fluidized bed fly ash（ CFBFA） in Xinjiang were investigated by X-ray diffraction,scanning electron microscope and chemical analysis methods. The CFBFA were modified by adding FeCl3 and AlCl3water solution,the particle size and dosages of these modified CFBFA on the treatment efficiency of oil-water separation wastewater from Xinjiang Karamay polymer flooding oilfield were also investigated. The experiment results showed that these CFBFA has the contents of SiO2,Al2O3,Fe2O3,CaO and MgO accounting for more than 90% of the total weight,lower content of glass phase,irregular particle shape and rough surface; the particle size of the modified CFBFA below 0. 074 mm with good removal effect,the removal rate increased with the increasing of the dosage; when the dosage was 0. 1 g/mL in the wastewater,the removal rate reached more than 90%.

关 键 词：流化床粉煤灰(CFBFA) 化学组成 形貌 油水分离废水 去油率 

分 类 号：X703[环境科学与工程—环境工程]