中国甜菜糖业Issue(4)：11-18,8.DOI:10.3969/j.issn.1002-0551.2018.04.003
利用糖蜜活性炭固定化混合微生物群落厌氧产氢研究
Anaerobic Hydrogen Production of Molasses from Mixed Microbial Communities Immobilized by Activated Granular Carbon
摘要
Abstract
Molasses wastewater was evaluated as substrate for biohydrogen production by anaerobic fermentation in a novel continuous mixed attached growth reactor (CMAGR) with aeration pretreated sludge attached onto granular activated carbon under continuous flow condition.It was indicated that the CMAGR system was operated at the conditions of influent COD of 2000 ～6000 mg/L,hydraulic retention time (HRT) of 6 h and temperature of 35℃,when the pH value and oxidation-reduction potential (ORP) ranged from 4.16 and-434 mV respectively,stable ethanol-type fermentation was formed with the sum of ethanol and acetate concentration ratio of 89.3％ to the total liquid products after 40 days operation.The H2 content in biogas and chemical oxygen demand (COD) removal were estimated to be 46.6％ and 13％,respectively.It was also investigated that the effects of organic loading rates (OLRs) on CMAGR hydrogen production system.It was found that hydrogen production yield increased from 3.72 mmol/hL to 12.51 mmol/hL as OLRs increased from 8 kg/m3d to 32 kg/m3d.The maximum hydrogen production rate of 12.51 mmol/hL at a OLR of 32 kg/m3d and the maximum hydrogen yield by substrate consumed was 130.57 mmol/mol happened at OLR of 16 kg/m3d.Greater pHs appeared to be favour to butyrate production and the maximum of 0.51 mol/mol was obtained at pH of 4.14.However,ethanol/acetate ratio was greater than 1.1 at pH fluctuated between 3.4-3.6 and 4.1-4.4 which indicated that these pHs were favour to ethanol type fermentation.Therefore,the continuous mixed attached growth reactor (CMAGR) could be a promising attached growth system for biohydrogen fermentation.关键词
生物制氢/连续混合附着生长反应器/糖蜜废水/活性炭/废水处理Key words
Biohydrogen production/Continuous mixed attached growth reactor/Molasess wastewater/Activated granular carbon/Wastewater treatment分类
农业科技引用本文复制引用
张伊帆,齐凤岱,李晓燕,孙嘉曼,王晓彤,李永峰..利用糖蜜活性炭固定化混合微生物群落厌氧产氢研究[J].中国甜菜糖业,2018,(4):11-18,8.基金项目
全国大学生创新项目(201810225114).Financial support from the National Hi-Tech R&D Program (863 Program),Ministry of Science & Technology,China (Grant No.2006AA05Z109) and Shanghai Science and Technology Bureau (Grant No.071605122) and Shanghai Education Committee(Grant No.07ZZ156) and GRAP09,Northeast Forestry University are gratefully acknowledged. （201810225114）
