电解化学两步氧化法处理高浓度电镀含氰废液

5　PCRTG1G220。,。G1(0.647±0.001)mm,G2(0.731±0.001)mm,304,,G1、G2。,G1:20s5.8μm,30s7.9μm,30s20s2.1μm;G2:20s5.9μm,30s7.3μm,30s20s1.4μm。G2G1,G2G1。G1、G220s30s。,20s30s,,,。、。,,,,5μm。。,、,SE。6　,,304;,SE。,,。:2004-10-09··-TreatmentofHighConcentrationCyanideContainingElectroplatingEffluentsbyChemical-electrolyticalTwo-stepOxidization,　,　(重庆师范大学化学学院,重庆400047)SUNCheng-jing,LIZi-lin,ZHENGXiao-mei(FacultyofChemistry,ChongqinNormalUniversity,Chongqin400047):　研究了用电解-化学两步氧化法治理高浓度电镀含氰废液的技术及工艺,对该系统的运行状况进行了技术及经济分析,试运行表明,两步氧化法管理方便,运行稳定,劳动强度低,出水达标率高,而且,经济上可行。:　;;;Abstract:　Theprocessfortreatinghighconcentrationcyanidecontainingeffluentsbychemical-electrolyticaltwo-stepoxidizationisstudied.Theoperationofthesystemisanalyzedtechnicallyandeconomically.Theresultsshowthattheprocessisconvenientincontrol,stableinrunning,lowinlaborintensity,highintreatedeffluentqualityandfeasibleineconomy.Keywords:　cyanidecontainingeffluent;chemicaloxidization;electrolyticaloxidization;electroplating:X781.1　　　　　:A　　　　　:1000-4742(2005)02-0035-021　,,,。,,。,,、、,,。,,,。,、·35·20053　　　　　　　　　　　　　252(142)　　[1,2]。,,。-,。2　-,、、HClO,HClO,(CNO-)“”;,“”。CN-+ClO-※CNO-+Cl-2CNO-+3ClO-+H2O※2CO2+N2+2OH-+3Cl-,、,;,,,,。。,CN-CNO-,CNO-CO2N2。Cl-Cl2,Cl2,HClO,HClO;。,CN-0.1mgL,,,。,,,,。-,,200～250mgL,。CN-,,。。,,,,,,,。3　-,,,1。1　-3.1　,,1。,5～10gL;,pH11～12。,,。、pH、,,。,,。,,。,,1,。CN-200～250mgL,2,。3.2　2,,pH11～12,,;2;pH8.5,,,,。4　--2t,120t,,,,。1。·36·　　Mar.2005　　　Electroplating&PollutionControl　　　　　　　Vol.25No.21　,mgL　　pHCODSS13.3----2500010.255366.80.3743.7　　1,CN-5000mgL,7,CN-237mgL。,、、、、。,pH8.5,COD22.9mgL,SS17mgL,0.006mgL,0.13mgL,0.05mgL。。5　、、、、、,。,279.3kWhm3,280.8kWhm3,1.5kWhm3。,。6　,,,2。120m3d,2m3。2　(120m3d)(·m-3)(·m-3)(·m-3)5th,15th800.662.675.6　　-,,20～30,,120m3d,10,2;。,。7　,2。2,,,。,,。2　　　,,。,,,,。,,,。,,。8　(1)-,,,。(2),。,。(3),,,,。:[1]　,.[J].,1997,15(1).[2]　,.[J].,2001,24(1).:2004-10-23·37·20053　　　　　　　　　　　　　252(142)