:1009-6825(2009)09-0192-02:2008-11-15: (1983-),,, 730070(1965-),,,,,, 101102(1975-),,,,, 101102张 璇 文一波 陈劲松 :探讨了电絮凝法深度处理焦化废水的工艺,采用特制的电絮凝反应器,系统考查了电流强度、反应时间、pH值和极板间距等因素对电絮凝效果的影响,试验结果表明,电絮凝工艺对焦化废水的NH3-N和COD均有很好的处理效果,是一种前景广阔的深度处理工艺。:电絮凝,焦化废水,深度处理:X703:A ,,,、;,,、、。、[1],12h~24h,99%,、。COD,COD250mg/L~550mg/L。,。[2],,COD,NH3-N。,COD,NH3-N,:COD≤100mg/L,NH3-N≤15mg/L。1 1.1 试验废水,COD250mg/L~350mg/L,NH3-N15mg/L~25mg/L。1.2 试验内容及装置,,、、pH。1,,,,,,。,、、、。,,,。2 2.1 电流强度对处理效果的影响10min,3mm,pH8,,。2。2,NH3-N,7.5A,,NH3-N。,,NH3,;[3],,,,。COD。,Al3+,,。,Al(Ⅲ)Al3+,Al(H2O)3+6,OH-,[4],,。,Al3+,,Al(OH)3,,,。,25℃,10A,40℃,,,。7.5A。2.2 反应时间对处理效果的影响7.5A,3mm,pH8,,·192·第35卷第9期2009年3月 山西建筑SHANXI ARCHITECTURE Vol.35No.9Mar. 2009 DOI:10.13719/j.cnki.cn14-1279/tu.2009.09.006。3。3,,NH3-NCOD,,,。,,,NH3-N。,N2NO3-,,,。,,COD。,。,,,。10minCOD,,[5],,COD。3,6min~10min,8min。2.3 pH值对处理效果的影响7.5A,8min,3mm,pH6,7,8,910,4。4,,NH3-NCOD;,Al(OH)3,,NH3-NCOD;,。6pH8,Al(OH)3,,。pH,,pH,Al(OH)3OH-,Al(OH)4-,Al8(OH)2-26,,。pH=8。2.4 极板间距对处理效果的影响,7.5A,8min,pH8,2mm,3mm,4mm5mm,5。5,NH3-NCOD。CODd,d=5mm,。,,,Al3+,,。,,,。,,,,3.0mm。3 1),,。,:7.5A;8min;pH8;3mm。2)NH3-NCOD,,NH3-N55%,COD75%,COD≤100mg/L,NH3-N≤15mg/L,。3)、、,。:[1] 甘 莉,甘光奉.电凝聚水处理技术的新进展[J].工业水处理,2002(5):5-7.[2] 张光吉.焦化废水处理工艺浅析[J].科技情报开发与经济,2005,15(15):184-185.[3] ChenX,ChenG,YuePL.Separationofpollutantsfromrestaurantwastewaterbyelectro-coagulation[J].SeparationandPurificationTechnology,2000(19):65-76.[4] StuckiP.Electrochemicalwastewatertreatmentusinghighovervoltageanodes[J].ApplyElectrochemistry,1991,21(3):34-38.[5] 冯 历,李 杰.电絮聚———SBR工艺处理采气废水[J].环境科学与管理,2008,33(2):69-71.[6] 徐金兰,王志盈.含PVA印染废水的电凝聚与生物处理效果试验研究[J].水处理技术,2003,29(4):218-221.Advancedtreatmentofcokingwastewaterwithelectro-coagulationZHANGXuan WENYi-bo CHENJin-songAbstract:Thetechnologyofelectro-coagulationforadvancedtreatingcokingwastewaterwasstudiedinthispaper.Theeffectofthedensityofelectriccurrent,thetimeofreaction,thepHvalueandthedistanceoftheelectrodewereinvestigatedfortheelectro-coagulationresultsbythespecialreactor.TheresultsshowthattheNH3-NandCODcanberemovedwellwithelectro-coagulation.Theprospectoftheadvancedtreat-ingtechnologyisbroad.Keywords:electro-coagulation,cokingwastewater,advancedtreatment·193· 第35卷第9期2009年3月 :