Bioregeneration by mixed microorganisms of granular activated carbon loaded with a mixture of phenols

被引:61
作者
Ha, SR
Vinitnantharat, S
Ozaki, H
机构
[1] Chungbuk Natl Univ, Coll Engn, Dept Urban Engn, Cheongju 361763, Chungbuk, South Korea
[2] Asian Inst Technol, Environm Engn Program, Bangkok 12120, Thailand
关键词
2,4-dichlorophenol; activated carbon; phenol;
D O I
10.1023/A:1005650612768
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The role of mixed microorganisms on the bioregeneration of granular activated carbon (GAC) loaded with a mixture of phenol and 2,4-dichlorophenol was investigated. In a biological activated-carbon, sequencing batch reactor (BAC-SBR), bioregeneration efficiency for phenol was enhanced from 39 to 48% and for 2,4-dichlorophenol from 38 to 43% by increasing solid retention time from 3 to 8 days. Prolonging the sludge retention time induced both progressive desorption of adsorbates due to biodegradation in the bulk solution and direct assimilation of adsorbates on GAC by attached microorganisms.
引用
收藏
页码:1093 / 1096
页数:4
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