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对PAC/MBR和MBR工艺处理微污染水源水的效能进行对比研究。结果表明,PAC/MBR对CODMn、UV254具有更好的去除效果,在浊度、氨氮的去除上,PAC/MBR没有明显优势。通过检测混合液中EPS的含量、分析膜出水通量的变化趋势,可以发现PAC的加入,增强了反应器内的生物活性,改变了系统混合液中EPS的形态及含量,改善了膜出水通量。说明PAC有助于减缓膜污染,提高系统的稳定性。
The effects of PAC / MBR and MBR processes on the micro-polluted source water were compared. The results showed that PAC / MBR had a better removal efficiency for CODMn and UV254. PAC / MBR had no obvious advantage on turbidity and ammonia nitrogen removal. By detecting the content of EPS in the mixture and analyzing the change trend of membrane effluent flux, it was found that the addition of PAC enhanced the biological activity in the reactor, changed the form and content of EPS in the system mixture, and improved the membrane effluent the amount. PAC help to reduce membrane pollution and improve system stability.