新型生物制氢反应器的运行及产氢特性  

CONTINUOUS OPERATION AND HYDROGEN PRODUCTION CHARACTERISTICS OF A NOVEL HYDROGEN PRODUCTION REACTOR

作　　者：郭婉茜[1] 任南琪[1] 王相晶[2] 向文胜[2] 曲媛媛[1] 

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090 [2]东北农业大学生命科学院,哈尔滨150030

出　　处：《太阳能学报》2009年第3期397-401,共5页Acta Energiae Solaris Sinica

基　　金：国家杰出青年科学基金(50125823);国家自然科学基金(30470054)

摘　　要：以厌氧活性污泥为产氢菌种,糖蜜废水为底物,研究了新型外循环颗粒污泥膨胀床(ECGSB)生物制氢反应器的运行及产氢特性。结果表明,ECGSB反应器可在较高的容积负荷(VLR)下实现高效稳定的产氢,稳定运行时,反应器内可观察到自絮凝产氢颗粒污泥的形成,污泥平均浓度高达24.1gVSS/d,系统最大产氢能力为7.43m^3/m^3·d,发酵气中氢气体积含量为50%～56%。系统形成自絮凝产氢颗粒污泥是ECGSB反应器高效运行和产氢的关键,自絮凝产氢颗粒污泥既增加了活性产氢细菌的生物持有量,又提高了系统抗冲击负荷的能力。连续流运行各项参数表明,ECGSB反应器具有良好的运行稳定性和产氢优势;提出乙醇型发酵快速启动的调控对策,在发酵法生物制氢领域具有广泛的应用前景。A novel extemal-circulation granular sludge bed （ECGSB） reactor seeded with anaerobic activated sludge was developed for high-rate fermentative hydrogen production using molasses wastewater. The ECGSB system produced hydrogen efficiently even at very high volume loading rate （VFA）. The maximum hydrogen production rate of 7.43L/L· d was obtained at the VLR 70-80kg/（m^3 ·d）. The average hydrogen production rate was 6.44L/L·d with the hydrogen content of 50%-56% in the biogas. Formation of self-flocculated granular sludge was observed during the operation of high VLR. An average biomass concentration of up to 24. 1gVSS/d was achieved even at very high VLR. The granular sludge was thought to be responsible for the high efficient reactor operation and hydrogen production, because it led to more efficient biomass retention and make the reactor more stable in response to the shock load. The results showed an outstanding operation stability and hydrogen production potential of the ECGSB hydrogen-producing reactor. The development of the new type reactor would accelerate the industrial-scale fermentative hydrogen production pace.

关 键 词：生物制氢 ECGSB反应器 产氢颗粒污泥 运行特性 

分 类 号：TK6[动力工程及工程热物理—生物能]