粉煤灰在水厂污泥处理和处置中的作用研究

粉煤灰在水厂污泥处理和处置中的作用研究第7卷第8期环境污染治理技术与设备2006年8月TechniquesandEquipmentforEnvironmentalP—ollu—tio—nCo—ntrolVo1．7．No．8Aug．2006粉煤灰在水厂污泥处理和处置中的作用研究杨崇豪张利伟赵丽敏(华北水利水电学院研究生处，郑州450008)摘要在水厂污泥水中加入电厂粉煤灰，不需再添加其他材料，即可以很好地改善水厂污泥的脱水性能。细粉煤灰最佳投加量为20％，粗粉煤灰最佳投加量为30％，不但可以节约能耗，粉煤灰有了新的出路，干化污泥对环境友好，而且还能制成低热值燃料作焚烧处置，回收部分热能。关键词粉煤灰污泥脱水比阻调理中图分类号X705文献标识码A文章编号1008—9241(2006)08-0114—03StudyonfunctionofflyashinsludgetreatmentofwaterworksYangChonghaoZhangLiweiZhaoLimin(GraduateDepartment，NorthChinaInstituteofWaterConservancyandHydroelectricPower，Zhengzhou450008)AbstractThedewateringeffectofsludgewaterfromwaterworkscouldbeobviouslyimprovedinthecondi—tionmixedonlywithflyashofpowerplantwithouthelpofothermaterials．Theoptimumdosageoffineflyashis20％，andthatofcoarseashis30％．Inthatcase，energyconsumptionwassaved，flyashhadnewoutlet，thedesiccationsludgewasfriendlytotheenvironment，andmoreoverlowcaloriefuelscouldbemadetodoburningdownhandling，partialheatenergycouldberecycled．Keywordsflyash；sludgedewatering；specificresistanceconditioni