摘要：

针对印染废水膜浓缩液含盐量高、可生化性差等特点，以铁碳陶粒为催化填料，耦合微电解和非均相Fenton工艺进行处理。中试运行结果表明，COD_Cr、苯胺、总磷、氨氮、总氮最高去除率分别达到87.8%、95.3%、90.6%、76.9%、72.8%，色度可降至15倍以下，出水满足《纺织染整工业水污染物排放标准》（GB 4287—2012）表 2直接排放标准要求。该工艺运行效果稳定，直接运行费用约为4.99元/t。

关键词: 微电解, 非均相Fenton, 印染废水, 膜浓缩液

Abstract:

The membrane concentrate from dyeing wastewater has high salt content and poor biodegradability, which was treated by micro-electrolysis coupling heterogeneous Fenton-like system using iron-carbon ceramsite as catalytic filler. The pilot test results showed that the highest removal rates of major pollution indicators such as COD_Cr, aniline, total phosphorus, ammonia nitrogen, and total nitrogen reached 87.8%, 95.3%, 90.6%, 76.9% and 72.8%, respectively, and the chroma decreased to less than 15 times. The effluent met the direct emission standard of Discharge Standard of Water Pollutants for Dyeing and Finishing Industry(GB 4287-2012). The operation effect of this process is stable, and the direct operation cost is about 4.99 yuan/t.

Key words: micro-electrolysis, heterogeneous Fenton-like system, printing and dyeing wastewater, membrane filtration concentrate

中图分类号: 

• X703