摘要
双酚A是废水处理中一种典型的有害物,需要在废水处理中去除。该文研究了不主动排泥的运行模式下膜-生物反应器对双酚A的去除效果。考察了不同双酚A污泥负荷对双酚A去除的影响,以及污泥吸附和生物降解对去除的贡献。在双酚A污泥负荷为0.058~10.2g.kg-1.d-1的条件下,膜-生物反应器对双酚A的去除率在93%以上。污泥对双酚A的吸附符合Freundlich型吸附等温式,但污泥吸附只占去除量的0.2%以下。经过一段时间的驯化培养,反应器污泥可以降解双酚A。双酚A的加入没有对膜-生物反应器去除常规污染物的能力产生影响。
Bisphenol A （BPA） is a typical wastewater contaminant, which should be removed. The BPA removal in a membrane bioreactor （MBR） was studied without sludge discharge during the operation periods （except for the sludge sampled for analysis）. The effect of the BPA-sludge loadings on the BPA removal was investigated, and the contributions of sludge adsorption and biodegradation to removal were analysed. The BPA removal efficiencies were over 93% in the MBR for sludge loadings from 0. 058 to 10. 2 g·kg-1 ·d-1. The sludge adsorption of BPA followed the Freundlieh isotherm, but the ratio of adsorbed BPA to removed BPA was less than 0. 2%. After acclimation, the BPA was degraded by the sludge in the MBR. There is no negative impact of adding BPA on the removal of traditional contaminants in the MBR.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第6期999-1003,共5页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金资助重大国际合作项目(20721140019)
关键词
废水处理
膜-生物反应器
双酚A
污泥负荷
污泥吸附
生物降解
wastewater treatments membrane bioreactor
bisphenolA
sludge loading
sludge adsorptions biodegradation
