Modelling of fugitive emissions from urban drainage systems

城市排水系统无组织排放的建模

• 批准号: 1690124
• 金额: --
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1690124
• 关键词: Modelling; fugitive; emissions; urban; drainage

Odours from urban drainage systems can be a serious nuisance and health hazard. Measures to minimize related problems can be classified with regard to the stages in odour generation: (i) in-sewer processes during unsteady flow of stormwater and sewage in combined and wastewater networks, (ii) air flow in pipes, (iii) ventilation from sewers to the surface, and (iv) mixing of gases in the atmosphere.This PhD will focus on formulating and developing a novel mathematical model (based on numerical techniques) for simulation of the second and third above described stages. This model will use the results of an existing sewer flow and quality model as input/boundary conditions/computational field, and will feed its results to an existing air quality model to analyse impacts and measures to reduce unwanted effects.The modelling approach that will be developed in this project will be tested on a range of situations, such as: a release of large amounts of air from sewers during rainfall, specific issues in coastal zones (tidal effects), hot climates and/or tourist areas, odours due to sewer flooding, and other. Model calibration using field data will be implemented. The ultimate aim is to enable analysis of possible measures to reduce odour problems.

城市排水系统的气味可能是一种严重的滋扰和健康危害。可以将相关问题的措施与气味产生的阶段进行分类：（i）在雨水不稳定流动期间的隔离过程中，合并和废水网络中的污水和污水中的污水，（ii）管道中的空气流动，（iii）（iii）从下水道到表面和（iv）在大气中的气体和（iv）在大气中的混合。数值技术）用于模拟第二和第三的模拟阶段。 This model will use the results of an existing sewer flow and quality model as input/boundary conditions/computational field, and will feed its results to an existing air quality model to analyse impacts and measures to reduce unwanted effects.The modelling approach that will be developed in this project will be tested on a range of situations, such as: a release of large amounts of air from sewers during rainfall, specific issues in coastal zones (tidal effects), hot climates and/or tourist areas,由于下水道洪水而引起的气味。将实现使用字段数据的模型校准。最终目的是实现可能的措施分析以减少气味问题。