College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, PR China.
Biotechnol Adv. 2010 Jul-Aug;28(4):531-40. doi: 10.1016/j.biotechadv.2010.04.002. Epub 2010 Apr 10.
Uneven distribution and excess accumulation of biomass within gas phase biofilters often result in operational problems such as clogging, channeling, and excessive head loss within biofilter beds, and consequently, the deterioration of performance. In this paper, the characteristics, mechanisms, and patterns of biomass accumulation in gas biofiltration were reviewed, and models for biomass accumulation were also summarized. Strategies for excess biomass control in gas biofiltration, categorized into either physical, chemical, or biological methods were also discussed, with improvements in design and operation of biofilters. Combinations of these approaches are usually necessary in order to maintain a reasonably even distribution and to minimize the accumulation of biomass in gas biofilters.
气相生物滤池中的生物量分布不均和过度积累常常导致操作问题，如生物滤床内的堵塞、沟流和过度压降，从而导致性能恶化。本文综述了气相生物过滤中生物量积累的特性、机制和模式，并总结了生物量积累模型。还讨论了控制气相生物过滤中过量生物量的策略，分为物理、化学或生物方法，并讨论了改进生物滤池的设计和操作。通常需要结合这些方法来维持生物量在气相生物滤池中的均匀分布和最小化积累。
