煤制油企业污水站恶臭异味废气处理研究

为了解决煤制油污水站挥发的恶臭异味VOCs废气污染,通过对各开口的浓度较高的污水池如隔油池、气浮池、气化废水预处理池、综合调节池、水解酸化池、中间沉淀池进行密闭,密闭方式根据各处理池的情况采用玻璃钢拱形盖板、膜结构等方式,设置玻璃钢通风管道进行收集,并集中进行预洗-生物滴滤-活性炭保安吸附处理,最后经15 m高排气筒达标排放。投用后经实际测量,废气排放达到设计要求,满足国家大气污染物排放标准。 In order to control odorous VOCs air emission from wastewater treatment plant for coal liquefaction project,the sewage tanks with high concentration at each openingsuch asthe oil separator,floatation tank,coal gasification wastewater pretreantment tank,equalization tank,hydrolysis-acidification tank,Intermediate sedimentation tank were sealed. According to the conditions of each treatment tank,the FRP arched plateand framed structure membrane coverwere adopted. Thewastegaswas collected and transported with PRP ventilation pipeline,and treated through prewashing-biotrickling filter-granular activated carbon adsorption in sequenceand finally discharged through15 m high exhaust funnel. The results show that after treatment the offgas meets the design requirements and the national air pollutant emission standard