Effect of chitosan on UASB treating POME during a transition from mesophilic to thermophilic conditions

被引：45

作者：

Khemkhao, Maneerat ^{[2
]}

Nuntakumjorn, Boonyarit ^{[3
]}

Techkarnjanaruk, Somkiet ^{[4
]}

Phalakornkule, Chantaraporn ^{[1
,2
,5
]}

机构：

[1] King Mongkuts Univ Technol N Bangkok, Dept Chem Engn, Bangkok 10800, Thailand

[2] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand

[3] King Mongkuts Univ Technol Thonburi, Dept Chem Engn, Bangkok 10140, Thailand

[4] Natl Ctr Genet Engn & Biotechnol BIOTEC, Bangkok 10150, Thailand

[5] King Mongkuts Univ Technol N Bangkok, Res & Technol Ctr Renewable Prod & Energy, Bangkok 10800, Thailand

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 07期

关键词：

Chitosan; UASB; Thermophilic; Methanogen archaea; 16S rRNA gene; OIL MILL EFFLUENT; 16S RIBOSOMAL-RNA; GRADIENT GEL-ELECTROPHORESIS; ANAEROBIC-DIGESTION; MICROBIAL-POPULATIONS; GRANULATION; REACTORS; DIVERSITY; IDENTIFICATION; TEMPERATURE;

D O I：

10.1016/j.biortech.2011.01.032

中图分类号：

S2 [农业工程];

学科分类号：

082806 [农业信息与电气工程];

摘要：

The effects of chitosan addition on treatment of palm oil mill effluent were investigated using two lab-scale upflow anaerobic sludge bed (UASB) reactors: (1) with chitosan addition at the dosage of 2 mg chitosan per g volatile suspended solids on the first day of the operation (R1), (2) without chitosan addition (the control, R2). The reactors were inoculated with mesophilic anaerobic sludge which was acclimatized to a thermophilic condition with a stepwise temperature increase of 5 degrees C from 37 to 57 degrees C. The OLR ranged from 2.23 to 9.47 kg COD m(-3) day(-1). The difference in biogas production rate increased from nonsignificant to 18% different. The effluent volatile suspended solids of R1 was 65 mg l(-1) lower than that of R2 on Day 123. 16S rRNA targeted denaturing gradient gel electrophoresis (DGGE) fingerprints of microbial community indicated that some methanogens in the genus Methanosaeta can be detected in R1 but not in R2. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4674 / 4681

页数：8

共 38 条

[1]

BASIC LOCAL ALIGNMENT SEARCH TOOL [J].