葡萄糖为碳源时生物除磷系统的影响因素研究

Study on Influencing Factors of Biological Phosphorus Removal with Glucose as Carbon Source

研究葡萄糖为主要碳源时，污泥龄、pH值、温度和厌氧搅拌对SBR生物除磷系统运行稳定性的影响，并与碳源为乙酸钠和汽车涂装废水时的系统进行比较．结果表明，随着泥龄缩短，除磷效率明显提高；生物除磷的最佳pH为6．5～7．5；污水的水温对除磷效果没有明显的影响；而厌氧搅拌对厌氧释磷有促进作用．以汽车涂装废水作为碳源的除磷系统除磷效果最差．

The effect of the SRT, pH value, temperature and anaerobic stirring on biological phosphorus removal process in SBR fed with glucose was studied in this paper. The phosphorus removal effect was also compared with that in the systems applying sodium acetate or coating wastewater of automobile manufacturing as the major substrate. The results indicated that short SRT can increase phosphorus removal significantly; the optimal pH ranged from 6.5 to 7.5 ; change of temperature had little effect on the phosphorus removal; and anaerobic stirring adopted at the anaerobic reaction step can improve anaerobic phosphorus release. It is found that phosphorus removal effect was the worst in the system applying coating wastewater of automobile- manufacturing as the major substrate.