应用三相流化床电极反应器(新型电化学反应器)处理制浆废水.研究了曝气量、槽电压、溶液pH值及FeSO4浓度等因素对电解效果的影响.结果表明,该反应器深度处理制浆废水的最佳工艺条件为:槽电压20 V,曝气量为0.3 m3.h-1,FeSO4浓度为1000 mg.L-1,pH值≈2.5,反应时间为90 m in时COD去除率为70.1%.
Treatment of pulping wastewater by using a novel electrochemical reactor,i.e.the three phase fluidized bed electrode,reactor were invesigated.The effects of air flow rate,applied voltage,pH value and FeSO_(4) concentration on electrolysis efficiency were investigated.It was clearly shown that the 20 V of voltage,0.3 m~(3) h~(-1) of air flow rate,1000 mg L~(-1) of FeSO_(4) concentration and pH≈2.5 were its best conditions.COD removal could be 70.1% under these conditions.
[1]Leddy J J.Industrial E lectrochem istry,in:E lectro-chem istry,Past and Present[M].W ash ington DC:A-m erica Chem ical Soc iety,1989.478.
[2]W u X ingwu(吴星五),Zhao Guohua(赵国华),GaoTingyao(高廷耀).New techn ique of electrochem icalwater treatm ent-electrocatalytic oxidation of b io-refrato-ry organ ism[J].Acta Sc ientiae C ircum stantiae,2000,20:80~84.
[3]X iong Y ingjian(熊英健),Fan juan(范娟),Zhu xihai(朱锡海).Progress and prospect of research in threed im ension electrode[J].Industral W ater Treatm ent,1998,18(1):5~8.
[4]Zhou Kanghan(周抗寒),Zhou D ing(周定).Potentiald istribution in a b ipolar packed bed electrolyser[J].Environm ental Chem istry,1994,13(4),318~322.
[5]Yeager E.E lectrocatalysts for O2reduction[J].E lec-trochem.Acta,1984,29:1527~1537.
[6]B rillas E,Sau leda R,Casado J.Degradation of 4-chlo-rophenol by anod ic oxidation,electro-Fenton,photoe-lectron-Fenton,and peroxi-coagu lation processes[J].E lectrochem Soc.,1998,145:759~765.