MBR和SBR去除典型内分泌干扰物的对比研究

Comparison of MBR and SBR on Removal of Typical Endocrine Disrupting Chemicals

采用模拟生活污水,在相同的运行条件下,对比研究了MBR与SBR对7种典型内分泌干扰物及其内分泌活性的去除效果。结果表明,试验所投加的内分泌干扰物不影响MBR和SBR的稳定运行;对于目标物17β-雌二醇(E2)、雌三醇(E3)、双酚A(BPA)、4-壬基酚(4-NP)和4-辛基酚(4-OP),MBR和SBR对它们的去除效果没有明显差别;但MBR对壬基酚聚氧乙烯醚(NP n EO,n平均约为1.5)和17α-炔雌醇(EE2)的去除效果较SBR更佳且更稳定。此外,MBR对内分泌活性的去除效果也较SBR更优。

Comparison between membrane bioreactor （MBR） and sequencing batch reactor （SBR） on the removal of seven typical endocrine disrupting chemicals （EDCs） and their endocrine activities was carried out using synthetic domestic sewage under the same conditions. The stable operation of MBR and SBR was not affected by EDC feed. There was no significant difference between MBR and SBR in removal of 17β-estradiol （E2）, estriol （E3）, bisphenol A （BPA）, 4-nonylphenol （4-NP） and 4- octylphenol （4-OP）. With regard to the elimination of nonylphenol polyethoxylates （NPnEO, n ≈ 1.5 ） and 17α-ethynylestradiol （EE2） , however, MBR performed better and more stably than SBR. Besides, MBR had a higher removal efficiency of endocrine activities.