一体化氧化沟固液分离和回流机理探讨

一体化氧化沟固液分离和回流机理探讨一体化氧化沟固液分离和回流机理探讨*邓荣森�王�涛�潘江浚�(重庆建筑大学城建学院,重庆�400045)摘要�论述了一体化氧化沟中固液分离和污泥回流的基本原理,提出了固液分离器的表面负荷SOR与污泥层厚度、回流污泥浓度等有关,计算模型为SOR=11+R�HwT�CuC0.固液分离器与二沉池的功效显著不同,所需面积远低于二沉池,在固液分离器内不发生污泥压缩、回流及时,不易受污泥沉降性能影响,是值得推荐的一体化氧化沟固液分离方式.关键词�一体化氧化沟;固液分离器;固液分离和回流机理.Mechanismofsolid�liquidseparationandsludgerecirculationinanin�tegratedoxidationditchDENGRongsen,WANGTao,PANJiangjun�(ChongqingArchitectureUniversity,Chongqing400045)Abstract�Theprincipleontheseparationandthesludgereturninanintegratedoxidationditch(IOD)werestudied.ItwasshowedthattheSORwascorrelatedtothethinnessofsludgeandtheconcentrationofthereturningsludge.AmodelwasestablishedasSOR=1(1+R)�HwT�CuC0.Theseparateefficienciesofthesidechannel�separation(SCS)andthesecondarysettlingtankwerecomparedandtheSCSwasfoundtobemoreefficientwithlessarea.SludgeconcentrationdidnotchangeintheSCSwhichwasnotinfluencedbythenatureofthesludge.Keywords�integratedoxidationditch(IOD),sidechannelseparation(SCS),sludgereturn.*国家八五!科技攻关项目近年来,一体化氧化沟技术因其工艺流程短、投资省和管