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时间:2018-10-28
《污泥深度机械脱水的优化研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、污泥深度机械脱水的优化研宄姚尚安:,孙同华*,瞿赞:,应迪文2,贾金平*,王冠1(1.上海交通大学环境科学与工程学院:2.上海交通大学材料科学与工程学院,上海200240)摘要:降低污泥含水率足污泥处罝的关键点。论文向制了髙伍恒压污泥过滤脱水装罝,在2MPa伍力条件下10min可快速将污泥含水率降低至75.30%:添加3%鉍化铁化学调理后,可进一步降低至63.38%。添加鉍化铝调理也可降至71.98%:生物质添加剂也卉较好的效果,污泥分别与木屑和秸秆按质萤比2丨调现后,尿滤后污泥的含水率分别为60.2
2、2%和63.75%,木屑的效果优于秸秆;生物质还具右极强的吸水性,也物质与污泥混合泥饼压滤后表观含水率仅分别为43.83%与45.90%;此外,生物质调理后存助于提升污泥热値,》J用于制备牛.物质污泥燃料。化学调理与半.物质调理具右协冋作用,优化后的污泥实际含水率及泥饼农观含水率低至55.23%与39.16%,污泥减逭效果相当明显。关键词:深度机械脱水;化学添加剂;生物质添加剂:污泥-生物质混合燃料中图分类号:X7O3文献标志doi:10.3969/j.issn.1003-6504.2014.03.0
3、25文章编号:1003-6504(2014)03-0126-06OptimizationResearchofMechanicalDewateringofSludgewithHighPressureYAOShang’an1,SUNTonghua1,QUZhan1,YINGDiwen3,JIAJinping1,WANGGuan1(1.SchoolofEnvironmentalScienceandEngineering;2.SchoolofMaterialScienceandEngineering,Shan
4、ghaiJiaotongUniversity,Shanghai200240,China)Abstract:Reducingthesludgewatercontentisthekeypointofsludgedisposal.Basedonfilter-pressingtestbyselfmadeconstantpressurefiltrationdevice,under2MPapressureandlOminfiltertimecanquicklyremovethemoisturecontentand
5、decreaseto75.30%.Adding3%FeCI3candecreasethemoisturecontentto63.38%,whileadding3%AICI3candecreasethemoisturecontentto71.98%.Biomassadditivesalsohavegoodeffects,sludgewithsawdusl/strawattheratioof2:1mixture,filter-pressuredsludgemoisturecontentcandecreas
6、eto60.22%and63.75%,withtheeffectofaddingsawdustbetterthanstraw.Duetothehighlyabsorbentofbiomass,theapparentmoisturecontentoffilter-pressuredsludgecakeis43.83%and45.90%.Inaddition,biomasswhichimprovestheheatvalueofsludgecanbeusedforpreparationofsludge-bi
7、omassmixture.Whenchemicaladditiveandbiomassadditivearesynergisticattheoptimumconditions,themoisturecontentsdecreaseto55,23%andapparentmoisturecontentsdecreaseto39.16%,withquiteobviouseffectofsludgereduction.Keywords:deepmechanicaldehydration;chemicalage
8、nt;biomassagent;sludge-biomassmixturefuel《环境科学与技术》编辑部:(网址)http://fjks.chinajournahnet.cn(电话)027-87643502(电子信箱)hjkxyjs@126.com收稿口期:2013-07-17;修回2013-09-11作吝简介:姚尚安(I989-),男,硕士研宂牛.,从事污泥深度机械脱水及资源化利用的研究,(电了•信箱)yaoshangan@sjtu.edu.cn。据
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