高效生物处理技术在碱渣废水处理中的应用  

APPLICATION OF HIGH EFFICIENT BIOLOGICAL TREATMENT TECHNOLOGY IN TREATMENT OF ALKALINE WASTEWATER

作　　者：王国栋[1] 唐国建 

机构地区：[1]中国石油化工股份有限公司天津分公司,天津300270 [2]天津莱特化工有限公司,天津300270

出　　处：《石油化工安全环保技术》2017年第3期54-61,共8页Petrochemical Safety and Environmental Protection Technology

摘　　要：在炼油及乙烯产品的精制过程中,为去除产品中的硫化物通常采用碱洗工艺,在碱洗的过程中会产生含有高浓度硫化物和难降解有机物的各种碱渣废水。采用高效生物技术处理高盐、高COD、难降解的炼油碱渣、乙烯碱渣,COD去除率可达90%,硫化物、挥发酚等去除率近100%;在开车提负荷和事故状态恢复期间,采取高的稀释倍数有利于稳定水质,降低有毒物质的抑制作用,有利于系统的启动和恢复,系统稳定运行期间可以逐步降低稀释倍数;高效生物培养出的污泥在高盐情况下的沉降性能良好,污泥中有高级的微生物如钟虫等存在。In the refining process of oil and ethylene,alkali washing process is usually used to remove the sulfide in the products.In the process of alkali washing,various alkali dregs and wastewater with high-concentration sulfide and organic matters hard to degrade will be produced.The efficient biological technology is adopted to treat refinery alkali dregs with high salt and high COD and alkali dregs hard to degrade.The removal rate of COD in ethylene alkali dregs can reach 90%.The removal rate of sulfide and volatile phenol is nearly 100%.During the load lifting in start-up period and accident state recovery period,high dilution is conducive to stabilizing water quality and decreasing the inhibition of toxic substances.It is also good to system startup and recovery.During the stable operation of the system,dilution can be reduced gradually.The settling performance of high efficient biological sludge with high salt is good.There are advanced microorganisms such as bell insects in the sludge.

关 键 词：高效生物 炼油碱渣 乙烯碱渣 高盐 

分 类 号：X742[环境科学与工程—环境工程]