Burlingame G A
Philadelphia Water Department, Philadelphia, Pennsylvania, USA.
Water Sci Technol. 2009;59(3):595-602. doi: 10.2166/wst.2009.872.
There are three main questions that need to be answered to address nuisance odors at the fenceline of a wastewater treatment plant: What odors are occurring at the fenceline of the plant? What processes within the plant give rise to these odors? What priority should we assign to mitigation of the nuisance odors? The prioritization is based on three factors that make odors a nuisance: strength or intensity of the odor when it is detected; quality or description of the odor; persistence or occurrence of the odor at the fenceline. Since fenceline odors vary according to: wind direction; wind speed; atmospheric stability and obstructions (buildings, trees, roadways), this study conducted odor surveys at the fenceline of a wastewater plant between April and November for 20 surveys. The data were used to develop a practical framework in three steps: summarize fenceline (residential vs non-residential) odor survey data; use odor type category and average odor strength to determine the annoyance factor; use annoyance factor and fenceline occurrence to determine the priority rating for nuisance odors to be mitigated.
为解决污水处理厂围栏线处的异味问题，需要回答三个主要问题：该厂围栏线处出现了哪些异味？厂内哪些工艺产生了这些异味？我们应将减轻异味问题的优先级设定为何？优先级是基于使异味成为麻烦的三个因素确定的：检测到异味时的强度或浓度；异味的性质或描述；异味在围栏线处的持续性或出现频率。由于围栏线处的异味会因以下因素而变化：风向、风速、大气稳定性和障碍物（建筑物、树木、道路），本研究于4月至11月期间在一家污水处理厂的围栏线处进行了20次异味调查。这些数据用于通过三个步骤建立一个实用框架：汇总围栏线（居民区与非居民区）异味调查数据；使用异味类型类别和平均异味强度来确定烦恼因素；使用烦恼因素和围栏线处的出现频率来确定要减轻的异味问题的优先级评级。
