作　　者： ; ; ; ; (罗晓虹）; (戴松林）;

机构地区： 华南理工大学化学与化工学院

出　　处： 《化工环保》 2006年第4期333-336,共4页

摘　　要： 对传统聚丙烯生物填料(简称普通填料)进行改性,考察了改性聚丙烯生物填料(简称改性填料)用于模拟废水生物处理的效果。实验结果表明,改性填料比普通填料具有更高的废水处理效率和更大的挂膜量,并能承受更高的气液比(体积比)及气流和水流的冲击。将模拟废水的COD(500m g/L)完全去除,用改性填料时需10.5h,而用普通填料时则需22.5h;在连续运行模式下,改性填料在气液比为40∶1时可使废水COD的去除率最高(99%),而普通填料则在气液比为30∶1时可使废水COD的去除率最高(79%)。 Conventional polypropylene biofilm carder（ conventional carder）was modified. The effects of modified polypropylene biofilm carder （modified carrier）on biological treatment of simulated wastewater were studied. The results show that： Compared with conventional carrier, the modified carder is more effective on wastewater treatment with more amount of biofilm on it;It can sustain higher air-water ratio（ volume ratio）and stronger impacts of air flow and water flow. It will take 10.5 h with modified carder, however 22.5 h with conventional carder to completely remove 500 mg/L COD from simulated wastewater. In continuous operation mode, the maximum COD removal rate with modified carder can reach 99% when the air-water ratio is 40 ： 1, while that with conventional carder can only achieve 79% when the gas-water ratio is 30 ： 1.

关 键 词： 聚丙烯 生物填料 改性 废水处理

领　　域： [环境科学与工程]