摘要：

采用Fenton法对某糖醇厂废水二级生化出水进行深度处理研究，确定了最佳反应条件为：H₂O₂投加质量浓度80 mg/L，Fe²⁺投加质量浓度80 mg/L，pH=3.5，反应时间30 min。在此条件下，废水COD、TOC及色度去除率分别为81.0%、79.2%、90.6%，达到《污水综合排放标准》（GB 8978-1996）一级标准。GC-MS分析结果表明，Fenton氧化后废水中有机物种类和数量均大幅减少，推测导致色度的物质可能为含苯环类物质、酸类物质以及醛类物质。

关键词: 木糖废水, Fenton, 深度处理, GC-MS, 显色物质

Abstract:

Fenton method used in the advanced treatment of secondary bio-chemically treated effluent from wastewater in a sugar alcohol factory has been studied. The optimal reaction conditions are as follows:the dosages of H₂O₂ and Fe²⁺ are both 80 mg/L,pH 3.5,and reaction time 30 min. Under these conditions,the removing rates of COD,TOC and chrome are 81.0%,79.2% and 90.6%,respectively,reaching the first class of Discharge Standard of Inte-grated Wastewater(GB 8978-1996). The analysis with gas chromatography-mass spectrometry(GC-MS) shows that the type and quantity of organic matter in wastewater have sharply been reduced after Fenton oxidation treatment. It is surmised that the material that results in chroma might contain materials,such as benzene ring,acid substances and aldehyde.

Key words: xylose wastewater, Fenton, advanced treatment, GC-MS, color materials

中图分类号: 

• X703.1