摘要
在序批式反应器(SBR)中,研究了废水中2种挥发性脂肪酸(VFAs)丙酸/乙酸的浓度比值对生物除磷(EBPR)的影响.结果表明,突然增加丙酸/乙酸浓度比值,导致短时间内系统生物除磷的效果变差;但经过一段时间的驯化后,除磷效果明显变好,溶解正磷酸盐(SOP)的去除效率比改变丙酸/乙酸的浓度比值前提高10%左右.进一步研究表明,除磷效率得到显著提高的原因主要是SBR2系统较低的二次磷释放量.
The affect of two kinds of volatile fatty acids (VFAs) ratio (propionic acid acetic acid) on enhanced biological phosphorus removal (EBPR) in wastewater was studied in sequencing batch reactors (SBR). The suddenly increasing propionic acid acetic acid ratio caused the variation in short-term system biological phosphorus removal effect. But after domestication for a period of time acclimation, the phosphorus removal effect was improved markedly; the removal efficiency of soluble orthophate (SOP) was about 10% greater than that before the change of propionic acid acetic acid ratio. Further study showed that the reason for the obvious enhancement of phosphorus removal efficiency was mainly the SBR2 system lower second phosphorus release amount.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2005年第2期249-251,共3页
China Environmental Science
基金
国家自然科学基金资助项目(50138010)
关键词
生物除磷
挥发性有机酸
废水
聚羟基烷酸
biological phosphorus removal
volatile fatty acid
wastewater
polyhydroxyalkanoie acid
