有机废水发酵法生物制氢中试研究  

HYDROGEN BIO-PRODUCTION BY ANAEROBIC FERMENTATION OF ORGANIC WASTEWATER IN PILOT-SCALE

作　　者：李建政[1] 任南琪[1] 林明[1] 王勇[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《太阳能学报》2002年第2期252-256,共5页Acta Energiae Solaris Sinica

基　　金：国家重点基础研究资助项目 (G2 0 0 0 0 2 64 0 2 )

摘　　要：利用厌氧细菌的产酸发酵作用进行生物制氢的生物制氢技术 ,在世界范围内受到普遍重视。然而 ,多数研究都集中在纯菌种的产氢机理上 ,而对混合菌种的研究较少。该文在小试研究成果的基础上 ,利用驯化的厌氧活性污泥进行了中试规模的生物制氢试验研究 ,获得了 30mol/kgVSS .d的持续产氢能力。试验结果表明 ,将运行参数控制在温度 35℃、pH4 0～ 4 5、HRT4～ 6h、ORP - 10 0～ - 12 5mV、进水碱度 30 0～ 5 0 0mg/L (以CaCO3 计 )、容积负荷 35～ 5 5kgCOD/m3 ·d等范围时 ,发酵法生物制氢反应器的最大持续产氢能力可达 5 7m3 /m3 ·d。中试制氢反应器具有良好的抗负荷冲击能力和运行稳定性 ,对制糖废水中的COD去除率可达到 2 0 %以上 ,去除单位COD可获得 2 6mol/kgCOD的产氢率。The biotechnology of hydrogen production by fermentation of anaerobic bacteria has been stuied world wide for a long time.However,most of the studies were carried out in laboratory to investigate the mechanism of hydrogen evolution using pure cultures of anaerobic bacteria while a few efforts on mixed cluture in this study.Using molasses as material,anaerobic activated sludge was researched.In order to find out the industrialized feasibility of hydrogen bio-production,the ability of hydrogen evolution by anaerobic activated slude and the optimal controls parameters were investigated in a pilot-scale test.The results showed that the domesticated anaerobic activated sludge could give a hydrogen yield as high as 30 mol/kgVSS·d in the pilot reactor.The pilot reactor obtained a hydrogen yield of 5.7m 3/m 3·d continuously under the conditions as following:temperature 35℃,pH 4 0～4 5, HRT 4～6h, ORP -100～-125,effluent alkalinity in terms of CaCO 3 300～500mg/L,volume loading rate 35～55kg COD /m 3·d.The study also indicated that pilot reactor had a better operational stabiltiy and an excellent adaptive capacity for organic loading rate.The rate of COD removal reached at about 20%and a hydrogen production rate of 26mol/kg COD removal was achieved in this study.

关 键 词：活性污染 厌氧 产酸发酵 制氢 氢气 中试规模 有机废水 发酵法 生物制氢 工艺流程 控制参数 氢气 

分 类 号：TQ116.29[化学工程—无机化工] X703[环境科学与工程—环境工程]