Modelling the iron, phosphorus, sulphur, carbon nexus in wastewater treatment

模拟废水处理中的铁、磷、硫、碳关系

• 批准号: RGPIN-2019-04064
• 负责人: Parker, Wayne
• 金额: $ 3.13万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=737379
• 关键词: Modelling; iron; phosphorus; sulphur; carbon

Wastewater treatment is evolving to improve resource recovery that will enhance the sustainability of wastewater management.  The strategies to achieve resource recovery need to be founded on a sound understanding of the chemistry and biology of wastewater treatment.  Iron is often added to wastewater streams to produce high-quality treated effluents with low phosphorous concentrations however this practice invokes complex interactions with organic and inorganic (i.e. phosphorus and sulfur) species. Processing of sludge streams for resource recovery (energy, nutrients, etc) will need to address the presence of high concentrations of iron. To better manage resource recovery, process designers and operators require tools (i.e. models) that can be employed to reliably describe the chemical and biological processes that impact on iron and its interactions with phosphorous and sulfur species.  However, the interactions between organic and inorganic species are not well described in wastewater process models.  The proposed research will address the development of submodels to describe the interactions between organic components in wastewater and sludge treatment and the formation of precipitates and complexes.  These sub-models will be developed such that they can be readily integrated into commercially available wastewater process simulators.  The enhanced capabilities of these simulators will allow wastewater engineers to evaluate the impact of wastewater properties as well as process design and operating conditions on the fate of inorganic species in wastewater treatment and sludge digestion.  The insights generated in the research will assist in the design of future resource recovery processes for inorganic species in wastewater treatment.  Wastewater treatment plants in Canada represent a multi-billion dollar investment, hence it is crucial that any changes made to these plants are effective and efficient.  The improved models generated through the proposed work will be useful tools to ensure that tax dollars are invested efficiently.  Further, it will situate Canadian researchers, engineers and technology providers to be well positioned to market this expertise abroad. where resource recovery from wastewater is also developing.

废水处理正在不断发展，以改善资源回收，从而提高废水管理的可持续性。 实现资源回收的战略需要建立在对废水处理的化学和生物学的正确理解的基础上。 铁通常被添加到废水流中以产生具有低磷浓度的高质量经处理的流出物，然而这种做法引起与有机和无机（即磷和硫）物质的复杂相互作用。处理污泥流以回收资源（能量、营养物等）需要解决高浓度铁的存在问题。为了更好地管理资源回收，工艺设计者和操作者需要能够可靠地描述影响铁及其与磷和硫物质相互作用的化学和生物过程的工具（即模型）。 然而，有机和无机物种之间的相互作用并没有很好地描述在废水处理模型。 拟议的研究将致力于子模型的开发，以描述废水和污泥处理中有机组分之间的相互作用以及沉淀物和复合物的形成。 将开发这些子模型，以便它们可以很容易地集成到商业上可用的废水处理模拟器。 这些模拟器的增强功能将使废水工程师能够评估废水特性以及工艺设计和操作条件对废水处理和污泥消化中无机物命运的影响。 在研究中产生的见解将有助于设计未来的资源回收过程中的无机物种在废水处理。 加拿大的污水处理厂需要数十亿美元的投资，因此对这些工厂进行的任何改造都必须有效和高效。 通过拟议的工作产生的改进模型将是确保有效投资税款的有用工具。 此外，它还将帮助加拿大研究人员、工程师和技术提供者做好准备，向国外推销这种专门知识。从废水中回收资源也在发展。