东南大学学报（自然科学版）Issue(6)：1278-1284,7.DOI:10.3969/j.issn.1001-0505.2014.06.032
EBPR的快速启动及其与同步硝化反硝化耦合实现污水的脱氮除磷
Fast start-up of EBPR and its coupling with simultaneous nitrification-denitrification to achieve sewage nutrient removal
摘要
Abstract
In order to know the phosphorus and nitrogen removal characteristics of an enhanced bio-logical phosphorus removal (EBPR)system when dealing with domestic sewage,the EBPR system, which was inoculated with activated sludge in a SBR,was fast started up by gradually increasing the influent COD(chemical oxygen demand)concentration,combined with short sludge retention time control.The nitrogen and phosphorus removal characteristics of the EBPR after being started up were also studied.Experimental results showed that when the influent COD concentration is gradually in-creased from about 200 mg/L to about 500 mg/L,the EBPR system could be started up in 29 d. The effluent PO3-4 -P concentration remaines below 0. 5 mg/L in the following 30 d,and the average phosphorus removal efficiency reaches 99. 4%.Additionally,this system can be efficiently and stab-ly used for long to deal with high phosphorus wastewater (containing PO3-4 -P of 40 mg/L).After the successful start-up of the EBPR system,phosphorous accumulating organisms (PAOs)become the dominant bacteria which accountes for 34%± 3% of total biomass.However,these also exist nitrifying and denitrifying bacteria,and glycogen accumulating organisms (GAOs)as well.Moreo-ver,during the stable operation phase of the EBPR system,simultaneous nitrification and denitrifica-tion (SND)are detected at the aerobic stage,coupling with the phosphorous uptake process of PAOs.The SND process leads to an average total inorganic nitrogen loss (TIN)of 7. 6 mg/L and a total nitrogen (TN)removal efficiency of about 70%.Phosphorus removal coupling with SND with-in the EBPR system can achieve the nitrogen and phosphorous removal in wastewater treatment.关键词
SBR/强化生物除磷/聚磷菌/同步硝化反硝化/脱氮除磷Key words
sequencing batch reactor/enhanced biological phosphorous removal/phosphorous accumula-ting organisms/simultaneous nitrification denitrification/nitrogen and phosphorous removal分类
资源环境引用本文复制引用
王晓霞,王淑莹,彭永臻,翁冬晨,戴娴..EBPR的快速启动及其与同步硝化反硝化耦合实现污水的脱氮除磷[J].东南大学学报（自然科学版）,2014,(6):1278-1284,7.基金项目
国家自然科学基金资助项目（21177005）、北京市教委科技创新平台资助项目、北京工业大学第12届研究生科技基金资助项目（yjk-2013-9603）． （）
