甲醇制烯烃(MTO)含油废水处理及回用  

Treatment and Reuse of Methanol to Olefin (MTO) Wastewater

作　　者：李玉林 杜善明 吴国祥 肖杰 刘义 贺飞 朱德汉 LI Yu-lin;DU Shan-ming;WU Guo-xiang;XIAO Jie;LIU Yi;HE Fei;ZHU De-han(Shenhua Xinjiang Chemical Co.Ltd.,Urumqi 831404,China)

机构地区：[1]神华新疆化工有限公司,新疆乌鲁木齐831404

出　　处：《中国给水排水》2018年第18期86-89,122,共5页China Water & Wastewater

摘　　要：新疆某煤制烯烃项目采用预处理+生物处理+深度处理组合工艺处理含油废水,其中预处理采用平流隔油、涡凹(CAF)气浮、溶气(DAF)气浮,生物处理采用A/O工艺,深度处理采用曝气生物滤池(BAF)。运行结果表明,该组合工艺运行稳定可靠,对油类及悬浮物去除率>99%,对COD和NH3-N的去除率> 95%,处理后的水可回用于冲刷地面、洗车、绿化、景观,同时浮油回收利用,可供同类废水处理工程参考。A MTO project in Xinjiang adopts the combined process of horizontal flow oil separation, cavitation air flotation （CAF） and dissolved air flotation（DAF） for pretreatment, A/O for biological treatment and biological aeration filter （BAF） for advanced treatment to treat oily wastewater. The operation results showed that the combined process was stable and reliable, the removal rates of oil and suspended solids were more than 99% , and the removal rates of COD and NH3-N were more than 95%. The treated water can be used for ground washing, car washing, greening, landscape, while the oil was recovered, which provides a reference for coal chemical MTO wastewater treatment.

关 键 词：含油废水 平流隔油池 气浮 曝气生物滤池 

分 类 号：TU993[建筑科学—市政工程]