Optimizing Process Parameters on the Remediation Efforts for the Mass Removal of DNAPL Entrapped in a Porous Media

Optimization of process parameters for remediation performance on mass removal of tetrachloroethylene source zones by using Taguchi design of experiment and artificial neural network

“…In situ enhanced solubilization method is a remediation technique that is based on the use of flushing agents (e.g., surfactants, cosolvents and cyclodextrins) that decreases interfacial tension between DNAPL and water and increases the apparent solubility of organic contaminants (Akyol et al, 2013; Difilippo et al, 2010; Tick et al, 2015). Thus, the use of enhance flushing can help to increase the efficiency of the PT and decrease the amount of time needed to completely flush DNAPLs from the porous media (Akyol, 2018; Akyol et al, 2013; Akyol & Turkkan, 2018; Difilippo et al, 2010; Karaoglu et al, 2019; McCray et al, 2000; McCray & Brusseau, 1999; Mohammed et al, 2019; Tick et al, 2003, 2015; Tick & Rincon, 2009).…”

“…The optimization techniques used in groundwater studies were mostly applied to remove contaminants (Mohammed et al, 2019). Moreover, relevant groundwater remediation studies have been conducted using these techniques (Akyol, 2018; Akyol et al, 2013; Akyol & Turkkan, 2018; Difilippo et al, 2010; Mohammed et al, 2019). According to literature studies, the flushing rate and concentration of surfactant are very important in remediation efforts.…”

“…The experimental design method used in studies to remove such compounds from soil is quite limited, and only one study has been conducted so far. Mohammed et al (2019) demonstrated that the SDS surfactant was successful in treating soils contaminated with the chlorinated solvent trichloroethylene using the Taguchi design of experiment (DOE) method. In particular, the experimental design method showed that the surfactant concentration had a significant impact due to the presence of enhanced solubilization process for remediation effort.…”

“…The most important contribution of the study to the literature is that there is no similar study in the related research field. The study carried out by Mohammed et al in 2019(Mohammed et al, 2019 provided the best experimental conditions for optimizing remediation performance using Taguchi and Response Surface methods. In the current study, while Taguchi method was used for parameter optimization, experimental data were modelled with ANN method.…”

Mass-flux Reduction and Mass Removal Relationships (MFR-MR) of Pool-dominated Multicomponent DNAPLs in Heterogeneous Geological System

“…In-situ chemical flushing (ISCF) has evolved as an effective technology for the enhanced removal of DNAPLs from the subsurface. ISCF typically involve the injection of cosolvents or surfactant solutions (the focus of the current study) to speed up the recovery of the DNAPL from the subsurface (McCray and Brusseau, 1999;Boving and Brusseau, 2000;Tick et al, 2003;Tick and Rincon, 2009;Carroll and Brusseau, 2009;DiFilippo et al, 2010;Harvell, 2012;Tick et al, 2015;Aydin-Sarikurt et al, 2016;Akyol and Turkkan, 2018;Akyol, 2018;Mohammed et al, 2019, Alazaiza et al, 2022. There are two general mechanisms by which surfactants can enhance the removal of DNAPLs from aquifers: (i) enhanced solubilization, (ii) mobilization.…”