不设初沉池时除磷脱氮系统产率系数的选择  

Selection of Yield Coefficient for Biological Phosphorus and Nitrogen Removal System Without Primary Clarifier

作　　者：许劲[1] 孙俊贻[2] 

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045 [2]重庆大学土木工程学院,重庆400045

出　　处：《中国给水排水》2005年第2期63-66,共4页China Water & Wastewater

摘　　要：详细分析了几种产率系数表达形式的具体含义及适用性,指出如果沿用设置初沉池时的f值进行无初沉池生物除磷脱氮系统的工程设计,会带来约40%～60%的误差,建议不设初沉池时生物除磷脱氮系统应采用能综合反映系统性能的净过程产率系数Yn或总产率系数YBOD,并对国内部分城市污水处理厂的实际运行数据进行了分析.After making analysis on the signification and adaptability of some expressions of yield coefficient, it was pointed out that if f value established with primary clarifier was used for engineering design of biological nitrogen and phosphorus removal system without primary clarifier, there would be errors of 40%-60%. It was suggested that for the biological phosphorus and nitrogen removal system without primary clarifier, net process yield Y_n or total yield coefficient Y_(BOD) should be used, which was capable of reflecting the system’s performance. And finally, the actual operating data for part of municipal wastewater treatment plants in China were analyzed.

关 键 词：实际产率系数 净过程产率系数 总产率系数 f值 生物除磷脱氮 

分 类 号：X703.1[环境科学与工程—环境工程]