城市污水厂生化污泥调理脱水研究

城市污水厂生化污泥调理脱水研究城市污水厂生化污泥调理脱水研究*王磊，夏菲菲，陈依，李叶，陈昆柏（浙江工商大学环境科学与工程学院，浙江杭州310035）摘要：通过对调理后生化污泥含水率的测定试验，考察了生石灰、三氯化铁、粉煤灰和煤粉等4种调理剂对污水处理厂生化污泥脱水性能的影响。结果表明：生石灰和三氯化铁对污水的脱水效果较好，且最经济投加量分别为4、2g/100mL，在该条件下，相对于原污泥，抽滤后调理污泥含水率分别降低7.07%和15.22%。关键词：污泥脱水；生石灰；三氯化铁；粉煤灰；煤粉；资源化中图分类号：X705文献标识码：A文章编号：1005－8206（2010）03－0004－03BiochemicalSludgeDewateringinUrbanSewageTreatmentPlantsWangLei,XiaFeifei,ChenYi,LiYe,ChenKunbai（CollegeofEnvironmentalScienceandEngineering,ZhejiangGongshangUniversity,HangzhouZhejiang310035）Abstract：Influencesoffourkindsofconditioneronbiochemicalsludgedewateringcharacteristicsofsewagetreatmentplantswerestudiedbymoisturecontentdeterminingexperimentationsoftreatedsludge,suchaslime,irontrichloride,flyashandcoalpowder.Theresultsshowedthatthedewateringeffectoflimeandirontrichloridewasbetter,andmosteconomicaldosagesoflimeandirontrichloridewere4g/100mLand2g/100mLrespectively.Undertheseconditions,themoisturecontentoftheconditionedsludgeswere7.07%and15.22%lowerthantheoriginalsludge.Keywords：sludgedew