二氧化氯处理含氰废水的研究

,,,(ClO2),,0.1g();CN-,0.2ppm,0.03mg/L,1180mg/L,,,,,1HClO,HClO,:CN-+HClOCNCl+OH-CNCl+2OH-CNO-+Cl-+H2OClO2:2CN-+2ClO2==2CO2+N2+2Cl-Cl2:2CN-+3Cl2+2H2OCO2+N2+6Cl-+4H+11()()ClO2263%CN-:ClO2=1:2.60CN-:ClO2=1:(35)Cl2100%CN-:Cl2=1:4.09CN-:Cl2=1:(812)NaClO95.3%CN-:NaClO=1:7.15CN-:NaClO=1:(1216)60%CN-:=1:7.15CN-:=1:(1825)22------:,;;,;60%,,;95.3%,,,10-15,,,,,2,,42SOUTHWESTWATER&WASTEWATERVol.27No.42005,CN-(CNO),pH,(1),CN-N2CO2,(2),:CN-+Cl2+2OH-=CNO-+2Cl-+H2O(1)2CN-+2ClO2=2CO2+N2+2Cl-(2)3pH,pH:pH,pH,,CN-20%,,pH11.5,ClO2/CN-=2.28-4.92,CN-104.8-302.08mg/L,99.6%,95%pH,,80%,pH12.4,2h96.3%,,pH,4,:2CN-+2ClO2=2CO2+N2+2Cl-:ClO2KCN67.5651.0411g:1.04g:2NaClO3+4HCl=2ClO2+Cl2+2NaCl+2H2O1gNaClO3(99%)0.60,HCl(31%)1.20.0035:1gCN-10.5g1gCN-0.0367551gCN-10.5g::100m3/d12.5m3/h:2030mg/L,30g/m38h::3012.510.5=3937.5g,4000g6ClO2,,,;,(60%-80%);;PVC;;7(1)(2),ClO2/CN-(3)pH,,,,,,pH11,30min95%(4),,:40004140003919E-mail:[e-mail]52SOUTHWESTWATER&WASTEWATERVol.27No.42005