| 电解法预处理高质量浓度难降解染料废水 |
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| 引用本文： | 祁佩时,陈战利,张焕鑫,刘云芝.电解法预处理高质量浓度难降解染料废水[J].哈尔滨工业大学学报,2009(10):47-51. |
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| 作者姓名： | 祁佩时 陈战利 张焕鑫 刘云芝 |
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| 作者单位： | 哈尔滨工业大学城市水资源与水环境国家重点实验室;南昌大学建筑工程学院 |
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| 基金项目： | 国家高技术研究发展计划资助项目(863-2004CB418505) |
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| 摘 要： | 为实现高质量浓度难降解染料废水的经济、高效处理,采用电解法进行预处理,考察电絮凝气浮、电解间接氧化和电解Fenton3种方法在废水有机物去除和可生化性改善等方面的性能.结果表明:电解Fenton法在电压15V、pH=4、反应时间2h的条件下,COD去除率可达48.1%,m(BOD5)/m(COD)值由原废水的0.07提高到0.42,为后续生物处理创造了条件;电解Fenton法的性能明显优于电絮凝气浮法和电解间接氧化法.
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| 关 键 词： | 电解法 染料废水 预处理 可生化性 |
Pretreatment of high-strength unbiodegradable dye wastewater with electrolysis processes |
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| QI Pei-shi,CHEN Zhan-li,ZHANG Huan-xin,LIU Yun-zhi.Pretreatment of high-strength unbiodegradable dye wastewater with electrolysis processes[J].Journal of Harbin Institute of Technology,2009(10):47-51. |
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| Authors: | QI Pei-shi CHEN Zhan-li ZHANG Huan-xin LIU Yun-zhi |
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| Affiliation: | 1(1.State Key Lab of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China;2.School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China) |
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| Abstract: | Three kinds of electrochemical methods,electro-flocculation,indirect electro-oxidation and electro-Fenton were investigated as pre-treatment processes for efficient and economical treatment of non-biodegradable organic fresh dye wastewater with high strength.The efficiency of each method was evaluated according to the reduction levels of COD,as well as the biodegradability improvement.The results indicated that,under the optimal conditions that voltage was 15 V,pH was 4 and reaction time was 2 h,the removal rate of COD reached 48.1%and the ratio of BOD5/COD was increased from 0.07 to 0.42 in the electro-Fenton process,which made the effluents convenient for the consequent bio-treatment.Meantime,the electro-Fenton process was more efficient than either electro-flocculation process or indirect electro-oxidation process. |
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| Keywords: | electrolysis processes dye wastewater pretreatment biodegradability |
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