Fe/Al/C、Fe/Al/Cu三元内电解处理亚甲基蓝染料废水
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摘要
采用Fe/Al/C和Fe/Al/Cu三元内电解体系处理亚甲基蓝废水,探讨了Fe/Al/C填料质量比、Fe/Al/Cu填料质量比、填料投加量、废水初始pH、反应时间和反应温度对COD去除率的影响。通过单因素分析和正交实验优化了两种内电解的工艺条件。结果表明,Fe/Al/C和Fe/Al/Cu三元体系的优化工艺条件:Fe/Al/C填料质量比为1∶0.2∶1,填料投加量为13.2 g/L,初始pH为7.0,反应时间为48 h,反应温度为25℃;Fe/Al/Cu填料质量比为4∶0.5∶5,填料投加量为15.2 g/L,溶液pH为5.0,反应时间为28 h,反应温度为20℃。在此条件下,出水COD均小于20 mg/L,COD去除率均达到90%以上。
The Fe/Al/C and Fe/Al/Cu ternary internal electrolysis systems have been used for the treatment of methylene blue dye wastewater,the influences of Fe/Al/C filler mass ratios,Fe/Al/Cu filler mass ratios,filler dosage,initial pH of wastewater,reaction time and reaction temperature on COD removing rate discussed,and the conditions of the two kinds of the ternary internal electrolysis systems optimized by single factor analysis and orthogonal experiment.The results show that the optimized technological conditions of Fe/Al/C and Fe/Al/Cu ternary internal electrolysis systems are as follows,Fe,Al,C mass ratio=1∶0.2∶1,filler dosage is 13.2 g/L,initial pH=7.0,reaction time 48 h,reaction temperature 25 ℃,and Fe,Al,Cu mass ratio=4∶0.5∶5,filler dosage is 15.2 g/L,initial pH=5.0,reaction time 28 h,and reaction temperature 20 ℃. As a result,the COD of the effluent is less than 20 mg/L and the COD removing rate reaches 90% under these conditions.
The Fe/Al/C and Fe/Al/Cu ternary internal electrolysis systems have been used for the treatment of methylene blue dye wastewater,the influences of Fe/Al/C filler mass ratios,Fe/Al/Cu filler mass ratios,filler dosage,initial pH of wastewater,reaction time and reaction temperature on COD removing rate discussed,and the conditions of the two kinds of the ternary internal electrolysis systems optimized by single factor analysis and orthogonal experiment.The results show that the optimized technological conditions of Fe/Al/C and Fe/Al/Cu ternary internal electrolysis systems are as follows,Fe,Al,C mass ratio=1∶0.2∶1,filler dosage is 13.2 g/L,initial pH=7.0,reaction time 48 h,reaction temperature 25 ℃,and Fe,Al,Cu mass ratio=4∶0.5∶5,filler dosage is 15.2 g/L,initial pH=5.0,reaction time 28 h,and reaction temperature 20 ℃. As a result,the COD of the effluent is less than 20 mg/L and the COD removing rate reaches 90% under these conditions.
引文
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[2]王玉番,鞠甜甜,王永,等. US/UV-Fenton体系处理不同工段的印染废水[J].环境工程学报,2017,11(5):2754-2761.
[3]吕建晓,崔英.活性艳红X-3B染料废水的铜-铁内电解法处理[J].印染,2015(7):17-20.
[4]曹雨平,刘亚凯,邓阳清.三元微电解体系在废水处理中的实验研究[J].工业水处理,2011,31(12):60-62.
[5]涂辉,陶雨芳,赵雄辉,等.铁/镍/炭三元内电解法降解活性艳红X-3B的研究[J].工业安全与环保,2016,42(6):70-74.
[6]尹美兰.两种三元微电解填料的开发及其性能研究[D].沈阳:沈阳工业大学,2016.
[7]程爱华,杜海霞,李杰.铁炭内电解预处理DMF和DMAC废水研究[J].安全与环境学报,2014,14(1):215-218.
[8]陈骁,漆新华.铁碳微电解填料制备及其对亚甲基蓝的降解[J].环境工程学报,2017,11(4):2041-2046.
[9] Lin H,Lin Y,Liu L. Treatment of dinitrodiazophenol production wastewater by Fe/C and Fe/Cu internal electrolysis and the COD removal kinetics[J]. Journal of the Taiwan Institute of Chemical Engineers,2016,58:148-154.
[10] Zhang X,Yue Q,Yue D,et al. Application of Fe0/C/Clay ceramics for decoloration of synthetic acid red 73 and reactive blue 4 wastewater by micro-electrolysis[J]. Frontiers of Environmental Science&Engineering,2015,9(3):402-410.
[11]潘碌亭,王九成,韩悦.铁碳复合材料催化内电解技术处理模拟农村铅污染水体效果[J].农业工程学报,2016,32(s1):254-260.