A review on reactive transport model and porosity evolution in the porous media

Abstract

This work comprehensively reviews the equations governing multicomponent flow and reactive transport in porous media on the pore-scale, mesoscale and continuum scale. For each of these approaches, the different numerical schemes for solving the coupled advection–diffusion-reactions equations are presented. The parameters influenced by coupled biological and chemical reactions in evolving porous media are emphasised and defined from a pore-scale perspective. Recent pore-scale studies, which have enhanced the basic understanding of processes that affect and control porous media parameters, are discussed. Subsequently, a summary of the common methods used to describe the transport process, fluid flow, reactive surface area and reaction parameters such as porosity, permeability and tortuosity are reviewed.

Preparation and Adsorption Properties of Magnetic chitosan/sludge biochar composites for Removal of Cu2+ions

“…The slopes of the three segments in the broken line are the particle diffusion rate constants kp,1>kp,2>kp,3. The adsorption process of Cu 2+ on Fe3O4@CTS/SBC composite adsorbent can be described as follows: in the first stage of adsorption, Cu 2+ combines with the adsorptive active sites of the surface functional groups of Fe3O4@CTS/SBC composite adsorbent, and the initial adsorption rate is fast 36 . When the number of surface active sites gradually decreases, it enters the second stage of adsorption.…”

General Local Reactive Boundary Condition for Dissolution and Precipitation Using the Lattice Boltzmann Method

“…Dissolution and precipitation of solid solutes occur in a broad range of natural phenomena and technological applications. Typical examples are dissolution of minerals in subsurface hydrology (Andrews et al., 2023; Baqer & Chen, 2022; Přikryl et al., 2017), biofilm growth in nutrient rich environments (Jung & Meile, 2021), etching into substrates (Cui et al., 2019), and conversion of active material in energy storage systems (Danner & Latz, 2019; Fang et al., 2021).…”

4D Neutron Imaging of Solute Transport and Fluid Flow in Sandstone Before and After Mineral Precipitation

“…The transport and mixing of reactive fluids through porous media can modify the porosity structure in geological systems (e.g., Baqer & Chen, 2022; Hommel et al., 2018; Kudrolli & Clotet, 2016). A prime example is porosity reduction and clogging due to mineral precipitation (e.g., Dávila et al., 2020; Emmanuel & Berkowitz, 2005), which is commonly observed in the sealing of faults and fractures by pore fluids (e.g., Fisher & Knipe, 1998), microbial activity leading to bio‐clogging (Thullner et al., 2002), as well as in industrial applications, such as effluent disposal (Eriksson & Destouni, 1997).…”

“…Several laboratory experiments of carbonate precipitation/dissolution in porous media during reactive transport have highlighted the importance of the dynamics of porosity and permeability evolution in both the pore scale and the Darcy scale (Baqer & Chen, 2022; Beckingham, 2017; Garing et al., 2015). Calcite crystal nucleation and growth in model porous media and fractures have been investigated using X‐ray microtomography imaging (Noiriel et al., 2012, 2021).…”