中文摘要：

引言 聚乙二醇（polyethylene glycol，简称PEG）属于聚醚类高分子化合物，具有良好的溶解性、吸湿性、热稳定性，广泛应用于许多工业领域中．但由于PEG水溶性极强，不易热解、水解，废水处理中的膜过滤、活性炭过滤、O3氧化和H2O2氧化等常规方法不能将其除去，在环境中长期积累，对人类健康和自然生态环境造成危害．

英文摘要：

A novel batch-fed hydrolytic-aerobic recycling process was used in the treatment of PEGcontaining waste water and the performance of the process was studied. When the concentration of PEG6000 and CODCr were 1.0 g·L^-1 and 2300 mg·L^-1 respectively, the hydrolytic-aerobic recycling process could better degrade PEG than the single hydrolytic or aerobic sequencing batch reactor （SBR） process. The recycling rate and volume ratio of hydrolytic and aerobic system were two important parameters, which influenced the treatment capacity of the recycling process,