曝气生物滤池处理豆沙馅生产废水的试验研究

曝气生物滤池处理豆沙馅生产废水的试验研究曝气生物滤池处理豆沙馅生产废水的试验研究孟玉(安徽省建设工程勘察设计院,安徽合肥230001)摘要:为有效降低豆沙馅生产废水的COD和色度,分别采用装填海绵铁和按1∶3配比装填海绵铁与陶粒组合滤料的曝气生物滤池对其进行处理,考察两者对COD和色度的去除效果。结果表明,单纯以海绵铁为滤料的滤池对COD的平均去除率为65%,出水色度几乎为零,但运行两周后出现滤料板结现象;采用组合滤料的滤池对COD的平均去除率为42%,出水色度在40倍左右,处理效果稳定且未出现滤料板结现象。关键词:海绵铁;陶粒;水力停留时间;COD;色度;板结中图分类号:X703.1文献标识码:C文章编号:1000-4602(2006)23-0082-03StudyonSweetenedBeanPasteProductionWastewaterTreatmentbyBiologicalAeratedFilterMENGYu(AnhuiConstructionEngineeringReconnaissanceandDesignInstitute,Hefei230001,China)Abstract:InordertoremoveCODandcolorfromsweetenedbeanpasteproductionwastewateref2fectively,BAFfilledwithsinglespongeironandcombinedspongeironandceramicitein1∶3proportionrespectivelywasused.TheeffectofCODandcolorremovalwasinvestigated.TheresultsshowthattheaverageCODremovalrateinBAFwithsinglespongeironis65%,itseffluentcolorisnearlyzero,butthefiltermediaarehardenedafterrunningtwoweeks.TheaverageCODremovalrateinBAFwithcom2binedspongeironandceramiciteis42%,itseffluentcolorisabout40times,withastablerunni