摘要
为了优化污水处理厂的运行,为后续升级改造方案提供设计依据,以公安县瓦池污水处理厂2017年实际运行监测数据为基础,利用统计学的方法分析进水COD、BOD5、TN、NH+4-N和TP的变化规律、分布特征以及与出水水质的相关性。结果显示:CODCr、BOD5、TN、NH+4-N和TP的年均值分别为201.93、101.51、32.14、21.52、3.34 mg/L,且随季节变化较明显;依据ATV-DVWK-A131E标准,该厂CODCr、BOD5、TN、NH+4-N和TP的设计进水浓度可分别取215、115、35、24、4.5 mg/L;原设计进水BOD5和NH+4-N较为合理,原设计进水COD偏大、原设计进水TN和TP偏小;进水COD、BOD5和NH+4-N浓度的变化会导致各自出水水质指标的正相关变化,进水TN浓度的变化会导致出水NH+4-N的正相关变化,进水TN和TP对出水TN和TP的影响均较小。
In order to optimize the operation of the WWTP and provide a basis for the upgrading project design,change rule and distribution characteristics of COD、BOD5、TN、NH+4-N and TP in the influent and correlations with these in the effluent were analyzed based on monitored data of Wachi WWTP in Gongan County in 2017.Results showed that annual average of CODCr,BOD5,TN,NH+4-N and TP were 201.93,101.51,32.14,21.52,3.34 mg/L,and various indexes significantly varied with the seasons.Design values of COD、BOD5、TN、NH+4-N and TP in the influent were 215,115,35,24,4.5 mg/L based on ATV-DVWK-A131E.Original design influent quality of BOD5 and NH+4-N were reasonable,while COD was too large and TN,TP were too small.According to the analysis of the correlation between influent and effluent,the change of influent COD,BOD5 and NH+4-N concentration led to positive correlation change of their effluent index,and the change of influent TN concentration led to the positive correlation change of effluent NH+4-N,besides,influent TN and TP had little effect on effluent TN and TP.
作者
李嘉颖
姜应和
龚树毅
赵俊
LI Jiaying;JIANG Yinghe;GONG Shuyi;ZHAO Jun(School of Civil Engineering&Architecture,Wuhan University of Technology,Wuhan 430070,China;Gongan County Jiayuan Water Service Co.,Ltd.,Jingzhou 434300,China;Research Center of Water Supply&Water Pollution Control,Wuhan University of Technology,Wuhan 430070,China)
出处
《净水技术》
CAS
2020年第5期86-91,共6页
Water Purification Technology
关键词
污水处理厂
进水水质
变化规律
出水水质
相关性
wastewater treatment plant(WWTP)
influent quality
change rule
effluent quality
correlation
