L?(3)盐酸HCl:10%?(4)氢氧化钠NaOH:10%РSino-Dutch Demonstration Researcher and Training Centre for Water TreatmentР掌握浊度仪的使用方法РSino-Dutch Demonstration Researcher and Training Centre for Water TreatmentР四.实验步骤Р1.确定最佳投药量?(1)用量筒量取6个水样于6个1000mL混凝杯中,并测定原水的浊度、pH值及水温?(2)依次向六个加药杯中加入Al2(SO4)3 溶液 1、2、4、8、10、12mL?(3)按表1设置程序(见实验指导书)?(4)搅拌过程中,观察并记录“矾花”形成的过程,“矾花”外观、大小、密实程度等РSino-Dutch Demonstration Researcher and Training Centre for Water TreatmentР(5)搅拌过程完成后,停机,静沉10min,观察并记录“矾花沉淀的过程?(6)静沉结束后,分别取出100mL上清液,并分别用浊度仪测?出剩余浊度?(7)绘制剩余浊度---投药量曲线?(8)根据同样的方法确定FeCl3的最佳投药量РSino-Dutch Demonstration Researcher and Training Centre for Water TreatmentР表1 最佳投加量实验记录表Р原水浊度原水温度原水pH 混凝剂 Al2(SO4)3Р水样编号 1 2 3 4 5 6 7Р混凝剂投? 加量 1 2 4 8 10 12? ?矾化形成? 时间Р水样剩余? 浊度РSino-Dutch Demonstration Researcher and Training Centre for Water Treatment
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