CAJ | 학술논문

为了解处理生活污水的强化生物除磷（EBPR）系统的除磷和脱氮特性，采用SBR接种普通活性污泥，通过逐步提高进水COD浓度的方式，结合短污泥龄控制，实现了EBPR系统的快速启动，并对启动后系统的脱氮除磷特性进行了研究．试验结果表明：当进水COD浓度由200 mg／L左右逐步提高至500 mg／L左右时，29 d可实现EBPR系统的启动，此后30 d内出水磷浓度稳定维持在0.5 mg／L以下，磷去除率平均达99.4％．该系统还可长期高效稳定地用于高磷污水（含磷40 mg／L）的处理．成功启动后的EBPR系统内聚磷菌（PAOs）为优势菌，占全菌总数的34％±3％，但也存在硝化反硝化菌和聚糖菌．在EBPR系统稳定运行时的好氧段，PAOs吸磷的同时伴随着脱氮菌群的同步硝化反硝化（SND）作用，使得平均总无机氮（TIN）损失达7.6 mg／L，系统总氮（TN）去除率在70％左右．EBPR系统内除磷耦合同步硝化反硝化，可实现污水的脱氮除磷．
위료해처리생활오수적강화생물제린（EBPR）계통적제린화탈담특성，채용SBR접충보통활성오니，통과축보제고진수COD농도적방식，결합단오니령공제，실현료EBPR계통적쾌속계동，병대계동후계통적탈담제린특성진행료연구．시험결과표명：당진수COD농도유200 mg／L좌우축보제고지500 mg／L좌우시，29 d가실현EBPR계통적계동，차후30 d내출수린농도은정유지재0.5 mg／L이하，린거제솔평균체99.4％．해계통환가장기고효은정지용우고린오수（함린40 mg／L）적처리．성공계동후적EBPR계통내취린균（PAOs）위우세균，점전균총수적34％±3％，단야존재초화반초화균화취당균．재EBPR계통은정운행시적호양단，PAOs흡린적동시반수착탈담균군적동보초화반초화（SND）작용，사득평균총무궤담（TIN）손실체7.6 mg／L，계통총담（TN）거제솔재70％좌우．EBPR계통내제린우합동보초화반초화，가실현오수적탈담제린．
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.