上海市郊区某城镇污水处理厂进水水质特征分析  

Analysis of Inlet Water Quality Characteristics of a Municipal Sewage Treatment Plant in Suburban Shanghai

作　　者：聂世勇 黄志金 赵悦 Nie Shiyong;Huang Zhijin;Zhao Yue(Shanghai Hongbo Engineering Consulting Management Co.,LTD,Shanghai 201707,China;River and Lake Water Ecological Restoration Engineering Technology Research Center of Shanghai Water Affairs Bureau,Shanghai 201707,China)

机构地区：[1]上海宏波工程咨询管理有限公司,上海201707 [2]上海市水务局河湖水生态修复工程技术研究中心,上海201707

出　　处：《绿色科技》2025年第2期127-132,共6页Journal of Green Science and Technology

摘　　要：选取上海市郊区某城镇污水处理厂2021年2-12月运行数据,统计并分析进水COD、NH_(3)-N、TP、TN等指标分布特征,采用Spearman秩相关系数和线性回归分析各项水质指标的相关性,并探讨降雨条件对进水水质浓度的影响。结果表明:NH_(3)-N浓度变化符合正态分布,COD、TP浓度变化符合正偏态分布,TN浓度变化为负偏态分布,进水可满足生物除磷要求,但仍需适当补充碳源,以保证出水达标;进水COD、TP、TN两两之间具有一定的相关性,NH_(3)-N与COD、TN、TP的相关性较弱。进水COD与TP线性关系一般,而与NH_(3)-N、TN几乎没有线性关系,NH_(3)-N、TP、TN两两线性关系较差;NH_(3)-N和TP在非降雨与降雨期呈现显著性差异,COD和TN在非降雨与降雨期差异性不显著。随着降雨等级的增大,进水COD、NH_(3)-N、TP、TN浓度呈降低趋势。The operation data of an urban sewage treatment plant in the suburbs of Shanghai from February to December 2021 were selected to analyze the distribution characteristics of influent COD,NH_(3)-N,TP,TN and other indicators.Spearman rank correlation coefficient and linear regression were used to analyze the correlation of various water quality indicators,and the influence of rainfall conditions on influent water quality concentration was discussed.The results show that the change of NH_(3)-N concentration conforms to the normal distribution.The change of COD and TP concentration conforms to the positive skew distribution,and the change of TN concentration is negative skew distribution.The influent can meet the biological phosphorus removal requirements,but the carbon source needs to be properly added to ensure the effluent standard.There is a certain correlation between COD,TP and TN in influent water,while the correlation between NH_(3)-N and COD,TN and TP is weak.The linear relationship between influent COD and TP is general,but there is almost no linear relationship with NH_(3)-N and TN,and the pair-linear relationship between NH_(3)-N,TP and TN is poor.NH_(3)-N and TP showed significant differences between non-rainfall and rainfall periods,while COD and TN showed no significant differences between non-rainfall and rainfall periods.With the increase of rainfall level,the influent COD,NH_(3)-N,TP and TN concentrations showed a decreasing trend.

关 键 词：城镇污水处理厂 进水水质 特征分析 营养物质 降雨 

分 类 号：X52[环境科学与工程—环境工程]