第45卷第4期(总第361期)电镀与精饰2023年4月超声波/紫外光-纳米Fe0类芬顿法处理络合态重金属废水马露1,2,张鹏1,2,肖棱2*,袁小超2,唐杰1,张运菊1(1.绵阳师范学院资源环境工程学院,四川绵阳621000;2.四川银河化学股份有限公司,四川绵阳622656)摘要:研究了超声波/紫外光(US/UV)-纳米Fe0类芬顿法处理高浓度络合态重金属废水的适宜条件,探究该方法对化学需氧量(COD)和络合态重金属的去除机理。实验结果表明:在US/UV作用下,纳米Fe0类芬顿法处理COD浓度1738.86mg/L、总铬473.14mg/L、总镍43.35mg/L、总铜8.53mg/L的络合态重金属废水,在pH值为3、温度为65℃、振荡速度150r/min时,纳米Fe0最佳用量为9.6g/L、H2O2投加量为1mL/L,反应20min后,COD、总铬、总镍和总铜的去除率分别为96.75%、99.99%、99.94%和99.57%。相较于传统芬顿法,该方法加快反应速率,反应时间缩短了66.6%,去除效果提高10%,且污泥量减少13%。纳米Fe0重复利用3次后,对络合态重金属的去除率仍在50%以上,可见纳米Fe0重复利用性好。因此,纳米Fe0在处理高浓度络合态重金属废水方面具有良好的应用前景。关键词:络合态;重金属废水;紫外光;超声波;纳米零价铁;化学需氧量(COD)中图分类号:X703.1文献标识码:ATreatmentofcomplexheavymetalwastewaterbyultrasonic/ultravioletnano-Fe0Fenton-likeprocessMaLu1,2,ZhangPeng1,2,XiaoLing2*,YuanXiaochao2,TangJie1,ZhangYunju1(1.SchoolofResourceandEnvironmentalEngineering,MianyangTeachers’College,Mianyang621000,China;2.SichuanYinheChemicalCo.,Ltd.,Mianyang622656,China)Abstract:Thesuitableconditionsofultrasonic/ultraviolet(US/UV)nano-Fe0Fenton-likeprocessforthetreatmentofhigh-concentrationcomplexheavymetalwastewaterwerestudied,andtheremovalmechanismofchemicaloxygendemand(COD)andcomplexheavymetalsbythisprocesswasex‐plored.TheexperimentalresultsshowthatundertheactionofUS/UV,nano-Fe0Fenton-likeprocesscantreatthecomplexheavymetalwastewaterwithCODconcentrationof1738.86mg/L,totalchromi‐umof473.14mg/L,totalnickelof43.35mg/Landtotalcopperof8.53mg/L.WhenthepHvalueis3,thetemperatureis65℃andtheoscillationspeedis150r/min,theoptimumconditionofnano-Fe0is9.6mg/L.Afterreactionfor20minwith1mL/LofH2O2,theremovalratesof...