A2/O-MBR工艺处理印染废水中试研究
Study on pilot-scale A2/O-MBR for printing and dyeing wastewater
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摘要: 将平板微滤膜与A2/O工艺结合构建了A2/O-MBR中试系统,探讨了中试系统处理印染废水的效果及稳定性。结果表明,水解酸化可提高印染废水的可生化性,对COD平均去除率达到了43%。系统处理效果稳定,在最佳工况下COD、NH3-H和TN的去除率分别为88%、98%和80%。Abstract: A pilot-scale system was constructed based on the combined theory of flat-sheet membrane and A2/O process.The treatment efficiency of printing and dyeing wastewater and stability of the system were also explored in this paper.The results showed that hydrolytic acidification can improve biodegradability of printing and dyeing wastewater and remove 43% of COD on an average.The treatment effect was stable. The removal rate of COD,NH3-H and TN was 88%,98% and 80%,respectively under the best running conditions.
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Key words:
- printing and dyeing wastewater /
- A2/O /
- MBR
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