Mines Richard O, Lackey Laura W, Behrend Glen R
Department of Biomedical and Environmental Engineering, Mercer University, Macon, Georgia, USA.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2006;41(10):2175-98. doi: 10.1080/10934520600872607.
A survey was conducted to report on the types and efficiencies of various treatment technologies being used at major wastewater treatment plants (WWTPs) in the state of Georgia. Twenty-four, full-scale wastewater treatment facilities with a design capacity of 37,850 m(3) d(-1) (10 Mg d(-1)) or greater were evaluated. One year of operating data for the 2003 calendar year was obtained from discharge monitoring reports (DMRs) provided by the Georgia Environmental Protection Division (EPD) in Atlanta. Additional information was gathered about facility operations and the types of chemicals used through review of EPD files and interviews with plant personnel. Data evaluated were: influent and effluent five-day Biochemical Oxygen Demand (BOD(5)), influent and effluent total suspended solids (TSS), effluent ammonia nitrogen (NH(3)-N), and effluent Total Phosphorus (TP). Effluent requirements for BOD(5) or five-day carbonaceous biochemical oxygen demand (CBOD(5)), TSS, ammonia nitrogen (NH(3)-N), TP, and dissolved oxygen (DO) vary by facility. Time series plots showing average effluent parameter concentrations versus month indicate the effectiveness of wastewater treatment as a function of type of treatment technology and temperature. Probability plots highlight the relationship between various effluent parameters and associated treatment technology. Fourteen facilities met all permit requirements, whereas ten of the facilities reported violations with regard to flow and/or effluent parameters. Chemicals utilized, design capacity, and monthly effluent concentrations are presented in this study.
开展了一项调查，以报告佐治亚州主要污水处理厂（WWTPs）所使用的各种处理技术的类型和效率。对24个设计处理能力为37850立方米/日（10百万加仑/日）或更高的全尺寸污水处理设施进行了评估。从位于亚特兰大的佐治亚州环境保护部门（EPD）提供的排放监测报告（DMRs）中获取了2003年日历年的一年运行数据。通过查阅EPD文件和与工厂工作人员访谈，收集了有关设施运行和所使用化学品类型的更多信息。评估的数据包括：进水和出水的五日生化需氧量（BOD₅）、进水和出水的总悬浮固体（TSS）、出水氨氮（NH₃-N）和出水总磷（TP）。不同设施对BOD₅或五日碳质生化需氧量（CBOD₅）、TSS、氨氮（NH₃-N）、TP和溶解氧（DO）的排放要求各不相同。显示平均出水参数浓度与月份关系的时间序列图表明了污水处理效果与处理技术类型和温度的函数关系。概率图突出了各种出水参数与相关处理技术之间的关系。14个设施符合所有许可要求，而其中10个设施报告在流量和/或出水参数方面存在违规情况。本研究介绍了所使用的化学品、设计处理能力和每月出水浓度。
