Reactive transport is a field of study within environmental and earth sciences that focuses on the movement and transformation of substances in various media, such as groundwater, soil, and sediment. This research area examines how chemical reactions, such as dissolution, precipitation, sorption, and microbial processes, impact the transport and fate of contaminants or nutrients in natural systems. Reactive transport modeling is commonly used to simulate and predict the behavior of these substances in the environment, considering factors such as flow rates, hydrological properties, and reaction kinetics. By understanding and predicting reactive transport processes, researchers can better assess and manage environmental issues related to water quality, soil contamination, and nutrient cycling.