微生物颗粒在废水处理中的应用与研究

Researches on application of microbial granule to wastewater treatment

微生物颗粒是微生物在适当的环境条件下,相互聚集形成的自聚集体。由于微生物颗粒具有良好的生物活性、沉降速度快、无需载体、易于固液分离等许多优点,在废水处理中得到了广泛的研究与应用。微生物颗粒化是一个复杂的过程,受多种因素影响。作者对近些年来国内外的一些研究成果,从厌氧颗粒污泥、好氧颗粒污泥、菌丝球3个方面综述了微生物颗粒在废水处理中的研究进展,内容包括颗粒的基本特性、微生物相,主要影响因素及其颗粒化过程。

Microbial granule is a self-immobilized body under appropriate conditions. Because of the advantages of high biomass activity, high settling velocities, needless carrier and good solid-liquid separation, microbial granules are extensively applied to wastewater treatment. Granulation is a complicated process, which is affected by various factors. From recent research results in the world, the progress of microbial granule in wastewater treatment on anaerobic granular sludge, aerobic granular sludge and mycelium pellet, including characteristics of granule,microbial morphology, key influencing factors and granulation process are summarized。