Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, T6G 2W2, Canada E-mail:
State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
Water Sci Technol. 2019 May;79(9):1685-1694. doi: 10.2166/wst.2019.164.
Field work was carried out to identify sewer odor hotspots and corresponding causes in a sanitary sewer trunk with drop structures and pump station in Steinhauer area, Edmonton, Canada. Relatively high concentrations of HS were detected at the beginning and the end of the trunk with odor complaints. At the beginning of the trunk, sulfide emission was mainly caused by the increased stripping effect of the drop structures. The pump operation at the end of the trunk causes the long retention time of the sewage and the subsequent sulfide generation. The sulfide generation was modeled and calibrated using field measurements. The model was applied to assess mitigation strategies, and optimized pump operation was found to be able to reduce sulfide generation in the study trunk sewer.
在加拿大埃德蒙顿的斯坦豪尔地区，对带有跌水井和泵站的污水干管进行了实地调查，以确定下水道异味热点及相应成因。在有异味投诉的污水干管的起始端和末端检测到相对较高浓度的 H2S。在干管的起始端，硫的排放主要是由于跌水井的增加脱气作用所致。在干管的末端，泵的运行导致污水停留时间延长，从而产生后续的硫化物。采用现场测量对硫化物的生成进行了建模和校准。该模型用于评估缓解策略，结果发现优化泵的运行可以减少研究污水干管中的硫化物生成。
