生物除磷系统中聚糖菌代谢机理的研究进展

Review on Metabolic Mechanism of Glycogen-accumulating Organisms in Biological Phosphorus Removal System

强化生物除磷(EBPR)被认为是一种最经济、可持续的污水除磷工艺。近年来大量研究报道,系统中聚糖菌的大量繁殖会使除磷工艺性能变差或完全失败。介绍了聚糖菌的代谢机理和影响聚糖菌与聚磷菌之间竞争的因素(如进水基质、P/C、pH值、温度和泥龄等),便于更好地理解聚糖菌的特性,从而实现提高生物除磷系统运行的性能与稳定性。

Enhanced biological phosphorus removal （EBPR） is widely accepted as one of the most economical and sustainable processes to remove phosphorus from wastewater. Poor performance or complete failure of EBPR processes has been snhstantially reported because of the preliferution of glycogen-accumulating organisms （GAOs） in the system. This paper presented the GAOs＇metabolic mechanism and the impact factors, .such as influent subsmite, P/C ratio, pH value, temperature and SRT, on competition between GAOs and PAOs to better understand GAOs＇characteristics and improve the performance and reliability of EBPR systems.