A^2/O工艺中通过氨氮浓度调控风量的研究  

Study on Controlling Air Volume According to Concentration of Ammonia Nitrogen in A^2/O Process

作　　者：廖颖哲 

机构地区：[1]广州市净水有限公司龙归分公司,广东广州510445

出　　处：《中国给水排水》2015年第19期96-98,共3页China Water & Wastewater

摘　　要：对于污水厂普遍采用的A^2/O工艺,对其出水氨氮浓度的控制主要是通过调整曝气量以控制出水端的DO浓度来实现,由于此方法存在"滞后"性,因此需将出水DO浓度维持在较高水平以应对未知的进水水质冲击,这势必会造成鼓风机能耗的浪费。为解决此问题,通过检测好氧段的氨氮分布,确定氨氮控制点,并以此点的氨氮浓度作为风量调整依据。生产性试验表明,该方法不仅对出水水质没有明显影响,并且可使鼓风机节约28%的电耗。In the A2/O process widely applied in WWTPs, the concentration of ammonia nitrogen in effluent is usually controlled by adjusting aeration rate to control the effluent DO. However, due to the lag of the method, the effluent DO should be kept at a relatively high level to withstand the impact of un- known influent quality. If so, it must cause energy waste of the air-blowers. To solve the problem men- tioned above, investigations on the distribution of ammonia nitrogen in aerobic stage were undertaken to find the control point of ammonia nitrogen. It turned out that controlling the air volume by ammonia nitro- gen concentration not only could reduce the air-blowers＇ electrical consumption by approximately 28% , but also had little influence on the effluent quality.

关 键 词：污水处理 A2/O工艺 氨氮浓度 曝气量 节能 

分 类 号：X703[环境科学与工程—环境工程]