摘要：

通过光催化与生物法耦合深度处理栀子黄色素生产废水，采用GC-MS分析仪检测到废水中含有异弗尔酮，2，3，4，5-四甲基-2-环戊烯酮以及1-乙基-2，2，6-三甲基环己烷。光催化预处理后废水的COD去除率为32%，色度从535度降至8度，废水的BOD₅/COD从0.08提升至0.33；生物反应后COD去除率增加到88%。通过三维荧光光谱分析了有机物的降解过程，表明废水中有机物在光催化-生物反应器处理后充分矿化。

关键词: 栀子黄色素废水, 光催化, 生物处理

Abstract:

The wastewater of gardenia yellow pigment production was treated by photocatalytic coupled biological method. GC-MS results showed that wastewater containing isophorone, 2, 3, 4, 5-tetramethyl-2-cyclopentenone and 1-ethyl-2, 2, 6-trimethylcyclohexane. After photocatalytic pretreatment, the COD removal rate of wastewater was 32%, and the chroma decreased from 535 to 8. The BOD₅/COD of wastewater increased from 0.08 to 0.33, while COD removal rate increased to 88% after biological treatment. The degradation process of the pollutants was analyzed by three-dimensional fluorescence spectroscopy, which indicated that the organic matter in the wastewater was fully mineralized after being treated by the photocatalytic/bioreactor.

Key words: gardenia yellow pigment wastewater, photocatalysis, biological treatment

中图分类号: 

• X703