生物强化在厌氧发酵过程中的应用进展

从生物强化作用机理、作用效果及影响因素等方面对国内外生物强化在沼气发酵过程中的研究进行了归纳与总结,表明生物强化在厌氧发酵的原料预处理、系统启动、产气等方面均具有促进作用,可提高系统的产气效率,但多数研究为实验室规模的批式发酵,生物强化的功能菌在发酵系统中的适应能力及稳定性是限制该技术实际应用的关键问题,需揭示投加的功能菌与系统土著微生物间的相互作用机制,研制性能稳定、适应性强的功能菌剂,寻求更佳的生物强化作用方式、建立强化效果的评价标准,才能使生物强化技术在实际工程中得到广泛应用。

Application of Bioaugmentation in Anerobic Desgestion

The application of bioaugmentation techniques in anaerobic fermentation was reviewed in term of mechanisms, effects and influencing factors of the bioaugmentation process. It reveals that bioaugmentation has positive effects on anaerobic fermentation, such as in feedstock pretreatment, anaerobic digestion processes start up and biogas produce. However, most of the existing researches were conducted in laboratory scale and batch assays. The focal point of bioaugmentation process is the survival and activity of functional microorganisms in the fermentation system. There are still a series of problems that need to be solved to increase the success of bioaugmentation strategies widely using in actual engineering, such as revealing the interrelationship of the inoculated microbial culture and existing microflora, developing stable and adaptable functional microbial agents, seeking better ways of bioaugmentation performance, establishing evaluation criteria of the bioaugmentation effects.