Reactive transport

反应性运输

• 批准号: 453339374
• 负责人: Dr. Janek Greskowiak
• 金额: --
• 依托单位: Institut für Biologie und Umweltwissenschaften (IBU)
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/453339374?language=en
• 关键词: Reactive; transport

DynaDeep will unravel the functionality and relevance of marine-terrestrial interactions below high-energy beaches, where we propose the deep subsurface to act as a dynamic bioreactor and unique microbial habitat affecting elemental net fluxes to the sea. To reach this goal, six subprojects will cooperate in joint field campaigns, shared sampling approaches as well as experimental work and use mathematical models in an integrative approach. Reactive transport processes in subterranean estuaries (STEs) have hardly been studied to date with the support of numerical reactive transport modelling. In groundwater science, reactive transport modelling has proven itself as an indispensable tool to untangle and quantify the coupled, nonlinear and typically non-intuitive interplay of hydrodynamic and biogeochemical processes. Applying reactive transport models in the postulated deep dynamic bioreactor below high energy beaches is a challenging yet promising way to unravel and elucidate the many intertwined processes. Subproject P6 will support the proposed research unit in its aim to understand these complex processes in the deep STE subject to highly transient boundary conditions. In close cooperation with and with steady feed-back from the project partners (P1-P5) we will develop reactive transport models capable of describing the processes and effects in the targeted laboratory experiments, as well as the composite behavior of the field-scale system. The resulting field-scale model will quantify the effects of the individual processes as well as the material fluxes in and out of the bioreactor. In cooperation with subproject P1 we will apply the final field-scale reactive transport model to a wide spectrum of field-scale conditions that are representative for high energy beaches in the world, thereby supporting the planning of Phase 2 of DynaDeep.

DynaDeep将揭示高能海滩下海洋-陆地相互作用的功能和相关性，在那里，我们建议深层地下作为一个动态的生物反应器和独特的微生物栖息地，影响元素净通量到海洋。为实现这一目标，六个分项目将在联合实地活动、共享取样方法以及实验工作方面进行合作，并以综合方法使用数学模型。反应输运过程在地下河口（STES）几乎没有研究到目前为止的支持下，数值反应输运模型。在地下水科学中，反应输运模型已被证明是一种不可或缺的工具，可以解开和量化耦合的、非线性的和典型的非直观的水动力学和地球化学过程的相互作用。在高能海滩下的假定深层动态生物反应器中应用反应性输运模型是一种具有挑战性但有前途的方法来解开和阐明许多相互交织的过程。子项目P6将支持拟议的研究单位，以了解这些复杂的过程中，深STE受到高度瞬态边界条件。通过与项目合作伙伴（P1-P5）的密切合作和稳定反馈，我们将开发能够描述目标实验室实验中的过程和影响以及现场规模系统的复合行为的反应性传输模型。由此产生的现场规模的模型将量化的影响，个别过程以及进出生物反应器的材料通量。在与子项目P1的合作中，我们将最终的现场规模反应传输模型应用于广泛的现场规模条件，这些条件代表了世界上的高能海滩，从而支持DynaDeep第二阶段的规划。