Molecular Microbiology Research 2024, Vol.14, No.2, 65-78 http://microbescipublisher.com/index.php/mmr 71 contaminated with light non-aqueous phase liquids (LNAPLs). This study employed a multi-phase remediation approach, including LNAPL skimming and vacuum-enhanced skimming, over a 78-day period. The trials successfully extracted over 5 m3 of LNAPL, and the results were validated using a multi-component simulation framework. This framework accurately predicted LNAPL mass removal rates and compositional changes, demonstrating its potential for long-term remediation planning (Figure 2) (Lari et al., 2018). Figure 2 Location of multi-phase recovery well (Adopted from Lari et al., 2018) Image caption: Left: The simulation domain and the boundary conditions; Right: The recovery well (at the site) configuration (Adopted from Lari et al., 2018) The setup shown in the diagram is typical for environmental engineering and hydrogeological studies, where monitoring and recovery of pollutants such as Light Non-Aqueous Phase Liquids (LNAPL) are required. The site's hydrogeology—primarily consisting of sand, with some discontinuities and partially cemented areas—presents specific challenges for pollutant recovery. The high permeability of the sand generally facilitates the movement of contaminants, making it crucial to precisely locate recovery wells like the one depicted in the diagram. Another significant field trial involved the use of bilayer tubular micromotors for simultaneous environmental monitoring and remediation. These micromotors, composed of mesoporous silica-coated titania (TiO2@mSiO2) with platinum and magnetic Fe3O4 nanoparticles, showed a remarkable ability to adsorb and degrade pollutants (Figure 3). The micromotors achieved up to 98% degradation of the model pollutant rhodamine 6G within 30 minutes, highlighting their efficiency and potential for large-scale environmental applications (Liang et al., 2018). Integrating advanced materials such as TiO2, mSiO2, platinum, and Fe3O4 nanoparticles into a single micromotor, combined with precise magnetic field control, marks a significant technological advancement in the field of environmental science. As demonstrated by this study, this technology can effectively and rapidly adsorb and degrade pollutants, opening new frontiers for environmental remediation, especially in areas where traditional methods are ineffective or too cumbersome. The visual evidence from these setups not only shows the functional efficiency of the micromotors but also illustrates the practical aspects of operating such systems under real-world conditions. 6.2 Success stories and lessons learned The success of these field trials underscores the potential of engineered SynComs in environmental remediation. The LNAPL remediation study demonstrated that a well-validated computational framework could significantly
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