移动床生物膜反应器挂膜影响因素研究进展

Research Progress of Influencing Factors on Biofilm Culturing in Moving Bed Biofilm Reactor

介绍了移动床生物膜反应器(MBBR)生物膜形成附着的过程,并分析了载体填充率、C/N、水力停留时间、水力剪切力、温度和酸碱度等因素对挂膜的影响。提出MBBR今后发展的方向是生物膜微观系统的研究及载体的改性应用:针对调节悬浮载体本身性质的手段不再限于简单的酸碱刻蚀与覆盖阳离子等表面改性和接枝,而是在填料制备过程中更多地采用共混技术来提高填料的生物强度;MBBR与其他工艺的耦合联用;微观表面形态、微生物群落的更替及各项生物行为的变化,以及生物膜相关动力学等。

The process of biofilm formation and adhesion in moving bed biofilm reactor (MBBR) was introduced, the effect of filling rate, C/N ratio, hydraulic retention time, hydraulic shear force, temperature and pH on biofilm culturing were analyzed. The future development of MBBR is proposed to study the biofilm microscopic system and the modification application of the carrier,like aiming at the adjustment of the natural of suspended carrier, no longer limited to the surface modification and grafting such as acid-base corrosion and cation coverage, but adopt blending technology to enhance the biological intensity of filler in filler preparation process;MBBR coupling with other processes;Replacing microscopic surface morphology and microflora,changing biological behaviors and studying related kinetics of biofilm.