摘要
针对聚酰亚胺薄膜生产废水有机负荷高、难生物降解的特性,实验采用"Fenton+聚丙烯酰胺(PAM)+悬浮填料生物床反应器(Xy-MBBR)"的处理工艺进行处理。结果表明,经过"Fenton+PAM"预处理后的废水COD从40.9 g/L降低到6.85 g/L左右,去除率达到了83%。预处理后的出水通过Xy-MBBR进行生化处理后,COD降到340mg/L左右,满足GB 8978-1996的三级标准。可为目前聚酰亚胺薄膜生产废水的处理提供参考。
Polyimide film industrial wastewater has high organic loading and is difficult to biodegrade. The 'Fenton+PAM+Xy-MBBR' process was used for the treatment in the experiment. The results showed that, After pretreatment with Fenton+PAM, COD decreased from 40.9 g/L to 6.85 g/L in the wastewater, and the removal rate reached 83%. The COD in effluent after the pretreatment was reduced to about 340 mg/L after the biochemical treatmnet by Xy-MBBR, which met the third-level standards of GB 8978-1996. This experiment provides a reference for the treatment of polyimide film industrial wastewater.
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