常州市某小型城镇污水厂进水水质特征研究  

Research on Inlet Water Quality Characteristics of a Small Town Sewage Treatment Plant in Changzhou City

作　　者：蒋科[1] Jiang Ke(Changzhou Planning and Design Institute,Jiangsu,213100)

机构地区：[1]常州市规划设计院,江苏213100

出　　处：《当代化工研究》2025年第3期91-93,共3页Modern Chemical Research

摘　　要：选取常州市某小型城镇污水处理厂,分析了进水BOD5、COD_(Cr)、NH_(3)-N、TN、TP、SS浓度变化特征。结果表明:COD_(Cr)、TN年平均进水浓度为280.0 mg/L、29.2 mg/L,高于太湖流域城镇污水厂平均进水浓度,BOD5浓度81.6 mg/L明显偏低。进水BOD/COD>0.4比例为23.2%,可生化性整体较差;进水BOD/TN>3.0比例为35.9%,污水厂长期需额外补充碳源;进水BOD/TP>20比例为80.5%,基本满足生物除磷要求。进水指标中BOD5与SS呈显著性相关;COD_(Cr)与NH_(3)-N、TN、TP呈显著性相关,其与进水中含有较高比例的工业废水有关。A small sewage treatment plant in Changzhou City.This was selected and the variation characteristics of BOD5,COD_(Cr),NH_(3)-N,TN,TP and SS concentrations of influent water were analyzed.The results showed the annual average influent concentrations of COD_(Cr) and TN were 280.0 mg/L and 29.2 mg/L,which were higher than the average influent concentration of sewage plants in the the Taihu Lake basin.The BOD5 concentration was 81.6 mg/L,which was significantly lower.The proportion of influent BOD/COD>0.4 was 23.2%,and the overall biodegradability was poor.The proportion of influent BOD/TN>3.0 was 35.9%,and additional carbon sources were needed.The proportion of influent BOD/TP>20 was 80.5%,which basically meeted the requirements of biological phosphorus removal.There was a significant correlation between BOD5 and SS.COD_(Cr) was significantly correlated with NH_(3)-N,TN and TP.This result was associated with a higher proportion of industrial wastewater in the influent.

关 键 词：常州市 小型污水厂 进水水质特征 

分 类 号：X703[环境科学与工程—环境工程]