摘要
采用双金属微电解预处理焦化废水。结果表明,Fe-Ni、Fe-Cu、Fe-Zn、Fe-Sn、Fe-C、Al-Cu、Al-C体系在酸碱条件下均可提高废水可生化性,Fe-Cu效果最佳,出水B/C高达0.54。Fe-Cu微电解与H2O2、活性炭、改性沸石、微波技术联用均可提高处理效果,与改性沸石联用时效果最佳,其最佳工艺条件为:Fe/改性沸石质量比5∶0.50,Fe/Cu质量比5∶1.25,pH值4.0,HRT 60min,最高COD和酚类去除率分别为43.99%和47.96%。GC-MS分析结果表明,Fe-Cu微电解与改性沸石联用预处理可完全去除废水中21种主要有机物。
The bimetal micro-electrolysis was applied for coking wastewater pretreatment.The results indicated that the biodegradability could be improved by Fe-Ni,Fe-Cu,Fe-Zn,Fe-Sn,Fe-C,Al-Cu and Al-C electrolysis systems under acidic and alkaline conditions.Fe-Cu was the optimum system and the B/C of effluent was 0.54.The efficiency of Fe-Cu could be improved by combined with hydrogen peroxide oxidation,activated carbon,modified zeolite or microwave technique.Under the appropriate conditions of 5∶0.50of mass ratio of Fe/ modified zeolite,5∶1.25of mass ratio of Fe/Cu,4.0of initial pH value,60min of hydraulic reaction time,FeCu combined with modified zeolite was the most effective method.The highest removal rate of COD and phenol were 43.99% and 47.96%,respectively.GC-MS Analysis indicated that 21kinds of organic compounds were completely removed by the pretreatment.
出处
《化学与生物工程》
CAS
2014年第5期63-66,共4页
Chemistry & Bioengineering
