电芬顿-活性污泥处理甘油洗涤废水的实验研究
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摘要
实验采用电芬顿法对甘油洗涤废水进行预处理,废水的可生化性明显提高,采用活性污泥法进一步处理电芬顿出水,处理效果较好.结果表明:在初始pH=4,恒定电流0.03A,2.0g/L的Na_2SO_4,0.5g/L的FeSO_4·7H_2O,反应60min的条件下,COD去除率约为55%,较传统芬顿试剂法提高22%.当进水COD浓度为1800mg/L左右时,经过活性污泥法,在溶解氧7.0mg/L左右,反应时间24h,污泥质量浓度4000mg/L左右的条件下,出水COD为120mg/L左右.
The glycerol washing wastewater was pretreated with electric-Fenton method and then with activated sludge.The results showed that by providing the initial pH of about 4,constant current of 0.03 A,the Na_2SO_4 concentration of 2.0 g/L,the FeSO_4·7 H_2O concentration of 0.5 g/L and reaction time of 60 min,the removal rate of COD is about 55%,better than the traditional Fenton method.Under the condition of 7.0 mg/L DO,24 hreaction time and 4000 mg/L MLSS,the effluent COD was about 120 mg/L while the inlet COD was 1800 mg/L.
The glycerol washing wastewater was pretreated with electric-Fenton method and then with activated sludge.The results showed that by providing the initial pH of about 4,constant current of 0.03 A,the Na_2SO_4 concentration of 2.0 g/L,the FeSO_4·7 H_2O concentration of 0.5 g/L and reaction time of 60 min,the removal rate of COD is about 55%,better than the traditional Fenton method.Under the condition of 7.0 mg/L DO,24 hreaction time and 4000 mg/L MLSS,the effluent COD was about 120 mg/L while the inlet COD was 1800 mg/L.
引文
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[3]李彤,杨浩,杨凯文,等.铁-锰-碳微电解法处理对苯二酚废水[J].化工环保,2015,35(2):127-131.
[4]Li T,Li T,Xiong H,et al.Factors influencing hydroquinone degradation in aqueous solution using a modified microelectrolysis method.[J].Water Science&Technology A Journal of the International Association on Water Pollution Research,2015,71(3):397-404.
[5]李发旺,李赞忠,王少青.组合氧化法深度处理煤制甲醇污水的实验研究[J].工业水处理,2016,36(7):59-62.
[6]王浩伊.Fenton试剂高级氧化法处理丙二醇废水的研究[D].上海:华东理工大学,2011.
[7]Shukla S,Oturan M A.Dye removal via electrochemistry and oxidation using semiconductor oxides nanotubes[J].Developmental Biology,2006,298(2):485-497.
[8]邹东雷,王红艳,杨金玲,等.Fenton试剂氧化-微电解-接触氧化法处理丙烯腈废水实验研究[J].吉林大学学报:地球科学版,2007,37(4):793-796.
[9]刘畅,李庆坤.微电解催化氧化+生化处理丙三醇、丁二炔醇生产废水的研究[J].科技信息,2013,19:438.
[10]董建威,司马卫平.气浮-水解酸化-好氧工艺处理化妆品废水工程应用[J].工业水处理,2016,36(8):103-105.
[11]高湘,王智峰,董宏宇,等.UASB/活性污泥/接触氧化/微滤工艺处理甘油废水[J].中国给水排水,2015,31(14):97-100.
[12]Aaron J J.Advanced Oxidation Processes in Water/Wastewater Treatment:Principles and Applications.A Review[J].Critical Reviews in Environmental Science&Technology,2014,44(23):2577-2641.
[13]Lin H,Zhang H,Wang X,et al.Electro-Fenton removal of Orange II in a divided cell:Reaction mechanism,degradation pathway and toxicity evolution[J].Separation&Purification Technology,2014,122(3):533-540.
[14]何文妍.新型电芬顿法在苯酚及甲基橙废水中的应用研究[D].西安:陕西师范大学,2013.