发酵产氢的动力学模型  

Kinetic models for fermentative hydrogen production

作　　者：阳广凤[1] 沈李东[1] 金仁村[1] 刘金翠[1] 韦杏花[1] 

机构地区：[1]杭州师范大学环境科学系,浙江杭州310036

出　　处：《环境污染与防治》2011年第10期79-85,共7页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.50808060);浙江省自然科学基金资助项目(No.Y5090072);杭州市科技发展计划项目(No.20091133B06)

摘　　要：发酵产氢已经建立和应用了一些动力学模型。对描述批次发酵产氢过程的动力学模型,描述各种因子对其影响的动力学模型,以及探讨基质降解速率、产氢细菌(HPB)生长速率和产物形成速率关系的动力学模型进行了综述分析。分析表明,改进的Gompertz模型被广泛用于描述批次发酵产氢过程;Monod模型则广泛应用于描述基质浓度对基质降解速率的影响;改进的Han-Levenspiel模型可描述抑制剂浓度对发酵产氢的影响;Arrhenius模型用于描述温度对发酵产氢的影响;Andrew模型可描述H+浓度对比产氢速率的影响;稀释率对发酵产氢影响的动力学模型需要根据系统特点选用不同的模型,包含了生物衰减的双基质模型更适用于描述连续搅拌罐反应器中稀释率对产氢速率、生物量和葡萄糖、蛋白胨、氨氮、甲酸盐、丁酸盐浓度的影响;Luedeking-Piret及其改进型模型被大量用于描述HPB生长速率与产物形成速率间的关系。同时,对这些动力学模型未来所要做的工作提出了建议。The kinetic models of fermentative hydrogen production,which can be used to describe the batch fermentative hydrogen production process,have been developed and applied.Base on these models,the effects of substrate concentration,inhibitor concentration,temperatures,pH and dilution rates on the process of fermentative hydrogen production were investigated,and the relationship among the substrate degradation rate,the hydrogen-producing bacteria（HPB） growth rate and the product formation rate was established.Researches indicated that the modified Gompertz model was widely used to describe the progress of batch fermentative hydrogen production process;the Monod model was widely used to describe the effects of substrate concentration on the rates of substrate degradation;modified Han-Levenspiel model was used to describe the effects of inhibitor concentration on fermentative hydrogen production;Arrhenius model was used a lot to describe the effects of temperature on fermentative hydrogen production;The Andrew model was used to describe the effects of H＋ concentration on the specific hydrogen production rate;the model about the effect of dilution ratio on the fermentation hydrogen production should be selectively adopted according to the system characteristics,the dualsubstrate model considering biomass decay was more suitable to describe the effect of dilution rates on hydrogen production rate and concentration of glucose,peptone,biomass,formate,butyrate in continuous stirred tank reactor;while the Luedeking-Piret model and its modified form were widely used to describe the relationship between the HPB growth rate and the product formation rate.Finally,some suggestions for future work with these kinetic models were proposed.

关 键 词：生物产氢 发酵产氢 动力学 模型 

分 类 号：TQ116.2[化学工程—无机化工]