摘要
处理规模12 m^3/d垃圾渗滤液处理中试设备的现场运行,表明在通量（7-11）L·m^-2·h^-1下,PVDF材质一体化平板MBR膜处理垃圾渗滤液时可连续稳定运行30天。进一步对被垃圾渗滤液严重污染的PVDF材质的一体化平板MBR膜,分别通过实验室清洗实验和中试设备中膜组件的化学在线清洗,结果表明EDTA适合清除垃圾渗滤液造成的MBR膜污染,运行30天明显污染的MBR膜经5%的EDTA在线清洗后,膜通量恢复至初始膜通量的90%左右。
When a 12 m^3/d equipment adopted the submerged flat-sheet MBR module treated landfill leachate for 30 days, obvious membrane fouling was happened, as the membrane flux reduced to about 30 % of initial membrane flux. The result means that the membrane fouling period was about 30 d. Cleaning experiments were further conducted to find the best cleaning reagent and process. The results showed that eathylene diamine tetraacetic acid（EDTA） had the best cleaning effect among the reagent tested. When 5 % EDTA was adopted for on-line cleaning, the membrane flux could return back to 90 % of the initial flux.
出处
《广东化工》
CAS
2015年第24期132-133,共2页
Guangdong Chemical Industry
