磷
强化生物除磷
化学
吸收(声学)
磷酸盐
无氧运动
序批式反应器
环境化学
环境工程
生物化学
流出物
废水
活性污泥
材料科学
生物
环境科学
有机化学
复合材料
生理学
作者
Nan Li,Nanqi Ren,Xiuheng Wang,Kuo Han
标识
DOI:10.1016/j.biortech.2010.03.008
摘要
This study investigated the temperature influence on intracellular absorption and extra-cellular phosphorus removal by extra-cellular polymeric substance (EPS) in enhanced biological phosphorus removal (EBPR) process. Three sequencing batch reactors (SBRs) were operated in anaerobic/aerobic sequence at 5.0, 15.0 and 25.0 °C. Phosphorus removed by intracellular absorption was demonstrated as the dominant part (>80%) in total phosphorus removal operated under different temperatures and the highest total phosphorus removal rate of 95% was obtained due to the highest intracellular phosphorus absorption of 18.2 mg P in a typical cycle at 15.0 °C. Phosphorus removed by EPS removal achieved the highest value at 5.0 °C (2.4 mg P/cycle), which resulted in a higher total phosphorus removal rate at 5.0 °C (90%) than that at 25.0 °C (83%). Low temperature was propitious to EPS phosphorus removal, accounting for 13% of total phosphorus removal at 5.0 °C, which could be mainly due to magnesium phosphate precipitation.
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