Bedri Zeinab, O'Sullivan John J, Deering Louise A, Demeter Katalin, Masterson Bartholomew, Meijer Wim G, O'Hare Gregory
Dooge Centre for Water Resources Research, School of Civil, Structural, and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland.
Dooge Centre for Water Resources Research, School of Civil, Structural, and Environmental Engineering, University College Dublin, Belfield, Dublin 4, Ireland.
Mar Pollut Bull. 2015 Feb 15;91(1):330-46. doi: 10.1016/j.marpolbul.2014.11.008. Epub 2015 Jan 7.
A three-dimensional model is used to assess the bathing water quality of Bray and Killiney bathing sites in Ireland following changes to the sewage management system. The model, firstly calibrated to hydrodynamic and water quality data from the period prior to the upgrade of the Wastewater Treatment Works (WwTW), was then used to simulate Escherichia coli (E. coli) distributions for discharge scenarios of the periods prior to and following the upgrade of the WwTW under dry and wet weather conditions. E. coli distributions under dry weather conditions demonstrate that the upgrade in the WwTW has remarkably improved the bathing water quality to a Blue Flag status. The new discharge strategy is expected to drastically reduce the rainfall-related incidents in which environmental limits of the Bathing Water Directive are breached. However, exceedances to these limits may still occur under wet weather conditions at Bray bathing site due to storm overflows that may still be discharged through two sea outfalls offshore of Bray bathing site.
采用三维模型评估爱尔兰布雷和基利尼浴场污水处理系统变更后的浴场水质。该模型首先根据污水处理厂（WwTW）升级前的水动力和水质数据进行校准，然后用于模拟WwTW升级前后在干燥和潮湿天气条件下排放情景中的大肠杆菌（E. coli）分布。干燥天气条件下的大肠杆菌分布表明，WwTW的升级显著改善了浴场水质，使其达到蓝旗标准。新的排放策略预计将大幅减少违反《沐浴水指令》环境限值的降雨相关事件。然而，由于暴雨溢流仍可能通过布雷浴场近海的两个海水排放口排放，在潮湿天气条件下，布雷浴场仍可能出现超标情况。
