采用改性焦炭脱除焦化废水中COD的研究刘尚超

:(1980-),,COD刘尚超1,薛改凤1,张　垒1,段爱民2,朱书景1(1.,430080;2.,430082)　:,。COD。,,pH,60min、300r/min、200mL13g,COD93mg/L48mg/L,COD。:;;;COD:X784　:B　:1008-4371(2011)01-0015-03StudyondehydrationofcokingwastewaterofmodifiedcokeLIUShang-chao1,XUEGai-feng1,ZHANGLei1,DUANAi-min2,ZHUShu-jing1(1.ResearchandDevelopmentCenterofWISCO,Wuhan430080,China;2.WuhanPingmei-WISCOUnitedCokingCo.,Ltd.,Wuhan430082,China)Abstract:Thecokingwasteristreatedindepthusingthemodifiedcokeassorbent.In-fluenceofdifferentfactorsontheremovalofCODinthewasterwaterisstudied.Exper-imentalstudyshowsthatundertheconditionsthatabsorptiontimeis60minutes,mag-neticstirringspeed,300r/minandadditionofmodifiedcoke,13gofmodifiedcokeadd-edin200mLwasterwatertheCODinthewasterwatercanbereducedto48mg/Lfromoriginal93mg/LwithoutassistanceofanyothertechnologyandwithoutadjustmentofpHandtemperatureofwater.TherequirementsofcirculationwaterforCODindexarecompletelysatisfied.Keywords:modifiedcoke;cokingwastewater;advancedtreatment;COD　　COD,,。,,COD,。。、。[1]。,。,,,。,,,,。,。,。1　1.1　试验用焦化废水情况。O-A-O,、。COD-571COD,COD=95mg/L,pH=6.8。,·15·2011　2491WISCOTECHNOLOGY　　Feb.2011Vol.49　No.1　　　　　　　　　　　COD=50mg/L,,。1.2　实验仪器和试剂AMU-200,,,PHS-2pH,COD-571COD。,,,,,。1.3　试验方法20mm,1h,。250mL200mL,,,30minCOD。2　2.1　改性焦炭加入量对废水中COD脱除效果的影响　　,pH,,200r/min,,1。1　COD　　1,13g,。,,。,,,[2]。13g,COD,,,COD。2.2　反应时间对废水中COD脱除效果的影响　　,200mL12.9g,,COD。,2h,2。2　COD　　2,,;,COD,COD,,。,,。60min,COD50mg/L,,COD,,60min。2.3　废水pH值对COD去除的影响,200mL13g,,60min,NaOHH2SO4pH,pHCOD。3。3　pHCOD　　3,pHCOD,,pH,。2.4　温度对废水COD去除效果的影响200mL13g,,60min,,·16·　　　　49,COD。4。4　COD　　4,COD。,20℃50℃60min,COD50mg/L。,,,,COD。,CODCOD,。2.5　磁力搅拌转速对COD去除率的影响,200mL13g,,,60min,COD。5。5　COD　　5,300r/min,COD。,,,,。300r/min,。,,,,,COD。,300r/min。2.6　改性焦炭与末改性焦炭处理效果对比　　,,pH,,60min,300r/min,200mL13g,1。1　COD　COD/(mg·L-1)/%954850.738210.53　　1,COD,,COD,。,。3　　1)COD。,COD95mg/L48mg/L,。2):pH,,60min,300r/min,200mL13g。3),,,,,,,,。4),。[][1]　,.[M].:,2005.[2]　　,,　.[J].,2003,21(5):777-780.(:2010-08-31)·17·1,:COD