活性炭催化臭氧氧化深度处理工艺对酵母发酵废水中有机物的去除特性分析

发布时间：2018-06-04 18:28

本文选题：发酵废水 + 活性炭催化臭氧氧化　；参考：《环境工程学报》2017年11期

【摘要】：酵母发酵废水经过厌氧膨胀颗粒污泥床(EGSB)-好氧膜生物反应器(MBR)组合工艺处理后,仍含有较高浓度的COD,不能满足排放要求。以发酵废水处理过程中MBR处理单元的出水为研究对象,选择活性炭催化臭氧氧化作为其深度处理工艺,以活性炭吸附和单独臭氧氧化工艺作为对比,重点考察了活性炭催化臭氧氧化深度处理工艺对发酵废水中有机物的去除效能,并借助红外光谱、三维荧光光谱和气相色谱-质谱联用等方法,详细分析了发酵废水深度处理过程中有机物的变化规律。研究结果表明,活性炭催化臭氧氧化深度处理工艺对发酵废水中的芳香族化合物、具有共轭双键的有机物及色度具有良好的去除效果;并且对废水中酸类、醇类和醛类等有机物有较好的降解、转化和去除效果。此外,活性炭催化臭氧氧化工艺还可以使以烷烃、卤代烃、醇类、酯类和酮类为主的大分子有机物的含量大幅度减少。
[Abstract]:The yeast fermentation wastewater was treated by the combined process of anaerobic expanded granular sludge bed and aerobic membrane bioreactor (MBR), but it still contained high concentration of COD, which could not meet the requirement of discharge. The effluent of MBR treatment unit in the process of fermentation wastewater treatment was studied. The activated carbon catalytic ozonation process was selected as the advanced treatment process, and the activated carbon adsorption process and the single ozone oxidation process were compared. The removal efficiency of organic matter in fermentation wastewater by advanced treatment of activated carbon catalytic ozonation was investigated, and the methods such as infrared spectrum, three-dimensional fluorescence spectrum and gas chromatography-mass spectrometry were used. The variation of organic matter in the process of advanced treatment of fermentation wastewater was analyzed in detail. The results show that activated carbon catalytic ozonation advanced treatment process can remove aromatic compounds with conjugated double bond organic compounds and chromaticity in fermentation wastewater. Organic compounds such as alcohols and aldehydes have better degradation, conversion and removal effects. In addition, the active carbon catalytic ozonation process can greatly reduce the content of macromolecular organic compounds, such as alkanes, halogenated hydrocarbons, alcohols, esters and ketones.
【作者单位】：北京林业大学环境科学与工程学院北京市水体污染源控制技术重点实验室;
【基金】：国家水体污染控制与治理科技重大专项(2013ZX07201007-003-01)
【分类号】：X703

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