摘要
以普通活性污泥法和石英载体生物膜法为对照 ,研究生物活性炭对 2 ,4 二氯酚 (2 ,4 DCP)的吸附特征和生物吸附动力学 ,探讨生物活性炭去除 2 ,4 DCP的作用机制 .结果表明 :使用粉末活性炭吸附 2 ,4 DCP可行且具有较强的抗冲击负荷能力 ,生物活性炭比活性污泥法、石英生物膜法的降解速率快 ,抗冲击负荷能力强 ,适合长期高浓度运行使用 .且在生物活性炭系统中 ,除了活性炭吸附和生物降解作用外 ,活性炭对 2 ,4
The adsorption characteristics and kinetics of 2,4-Dichlorophenol(2,4-DCP) by biological activated carbon (BAC) was studied through contrast experiments with conventional activated sludge alone or quartz as the carrier. The advantage and disadvantage of removing 2,4-DCP using BAC and the mechanism of this process were investigated. The results show that the method of removing 2,4-DCP by BAC is applicable in practices, and the process of BAC demonstrates high removal rate than the process of suspended activated sludge and biofilm with quartz as the carrier. In addition, the BAC process showed high resistance to shock loadings, therefore, it is suitable to be utilized at high organic loading and under long-term operation. In BAC-system, activated carbon could not only adsorb 2,4-DCP but also oxidized 2,4-DCP.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2004年第6期80-84,共5页
Environmental Science
基金
国家'十五'科技攻关项目 ( 2 0 0 2DFBA0 0 0 9)
关键词
微生物
活性炭
生物活性炭
2
4-DCP
吸附
microorganism
activated carbon
biological activated carbon
2,4-DCP
adsorption
