含氰废水加NaClO后时间与PH、ORP关系-df8c8ea9d1f34693daef3e60
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2019-03-31 08:22:12
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含氰废水加NaClO后时间与PH、ORP关系-df8c8ea9d1f34693daef3e60含氰废水加含氰废水加NaClO后时间与后时间与PH、ORP关系关系实验实验目的目的:观察反应PHORP氰变化,找出反应最佳控制点实验步骤:实验步骤:(1)测量原水PHORP氰含量(2)调节原水PH至11,在搅拌情况下加入NaClO,并间隔2分钟测量一次ORPPH,间隔15分钟测一次氰(3)调节原水PH至10,在搅拌情况下加入NaClO,并间隔2分钟测量一次ORPPH,间隔15分钟测一次氰实验现象:实验现象:原水透明略带黄色,加入次氯酸钠溶液变蓝,且次氯酸钠量大沉淀多,但在PH10情况下,加入6:18:1药量次氯酸钠,溶液蓝偏绿色。原水原水数据:数据:原水PH=7.3,ORP=213mv,CN=410mg/l前处理:PH调至11实验实验数据数据:A组表1-1加入不同量次氯酸钠后溶液ORP与PH变化A1:NaClO(4:1)A2:NaClO(2:1)A3:NaClO(6:1)A4:NaClO(8:1)时间ORPPHORPPHORPPHORPPH050010.196852610.6954910.96259010.128210.8858010.6360710.86461410.18910.8259910.662310.74661910.079210.7961210.5663610.61859910.029410.7861510.4862010.46106039.979610.7761610.3466010.1126089.99710.7563810.17319.64146129.859810.756669.847489.45166159.89810.767019.677509.34186179.759910.757079.587519.3206189.7210010.757099.547499.26226199.6910010.747089.457479.24246259.6510110.747059.447439.21266339.6410210.737029.387429.2286329.6310210.726989.367399.19306299.6210310.746939.347359.19326289.6110410.746899.337349.18346249.591
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