高浓度废水可调式厌氧处理技术_张艳

高浓度废水可调式厌氧处理技术_张艳高浓度废水可调式厌氧处理技术张艳1崔兆杰1姜斌2刘雷1(1.山东大学环境科学与工程学院,济南250100;2.山东医学高等专科学校,济南250002)摘要:以酒精发酵和有机化工混合废水为研究对象,通过对原厌氧工艺的改进,成功地研发了“可调式Ⅰ级全糟发酵/DDG+Ⅱ级UASB+Ⅲ级IC”厌氧工艺,实现了废水有机负荷和进入方式的随机调节。运行结果表明:新工艺运行稳定,有机负荷提高1倍,沼气产率提高39%～56%,厌氧阶段出水COD由原工艺的2000mg/L降低到500mg/L左右,COD去除率由93%上升到99%。关键词:高浓度废水;厌氧;可调式ADJUSTABLEANAEROBICPROCESSFORHIGHORGANICCONTENTWASTEWATERZhangYan1CuiZhaojie1JiangBin2LiuLei1(1.SchoolofEnvironmentalScienceandEngineering,ShandongUniversity,Jinan250100,China;2.ShandongMedicalCollege,Jinan250002,China)Abstract:Takingthemixedwastewaterfromalcoholfermentationandorganicchemicalindustryastheobject,andthroughim-provementontheoriginalanaerobicprocess,itwassuccessfullydesignedthenewanaerobicprocessof“adjustablewholestil-lageanaerobicfermentation/DDG+UASB+IC”,whichcouldmodulatetheorganicloadandentrymodeofthewastewatersto-chasticly.Theresultsindicatedthatthenewprocessranstably,whichdoubledtheorganicload,increased39%～56%ofgasproduction,decreasedtheCODofthefinaleffluentfrom2000mg/Ltoabout500mg