Optimal design of in-situ bioremediation system using the meshless element-free Galerkin method and particle swarm optimization

2020 ◽  
Vol 144 ◽  
pp. 103707
Author(s):  
Tinesh Pathania ◽  
T.I. Eldho ◽  
Andrea Bottacin-Busolin
Keyword(s):  
Particle Swarm Optimization ◽  
Optimal Design ◽  
Galerkin Method ◽  
Particle Swarm ◽  
Element Free Galerkin Method ◽  
Swarm Optimization ◽  
In Situ Bioremediation ◽  
Element Free Galerkin ◽  
Element Free

scholarly journals In-situ bioremediation of groundwater using a meshfree model and particle swarm optimization

2018 ◽  
Vol 20 (4) ◽  
pp. 886-897 ◽  
Author(s):  
Meenal Mategaonkar ◽  
T. I. Eldho ◽  
Sahajanand Kamat
Keyword(s):  
Particle Swarm Optimization ◽  
Groundwater Contamination ◽  
Groundwater Remediation ◽  
Particle Swarm ◽  
Injection Wells ◽  
Oxygen Injection ◽  
Swarm Optimization ◽  
In Situ Bioremediation ◽  
Point Collocation

Abstract Groundwater contamination due to contaminants like trichloroethylene (TCE), tetrachloroethylene, dichloroethylene, phenol, etc., is an alarming concern for most of the manufacturing areas. It is important to identify the type of pollutant, concentration, location, and direction of the contaminant plume for groundwater remediation. Bioremediation has been identified as one of the important remediation techniques for these types of contaminants. Bioremediation modeling comprises solutions to biodegradation equations and fixing the time of remediation and locating the oxygen injection wells. In this study, a simulation-optimization (S/O) model based on the coupled meshfree point collocation method (MFree-PCM) and particle swarm optimization (PSO) is proposed for in-situ bioremediation design. The in-situ bioremediation process of groundwater contamination is explored using the developed PCM-BIO-PSO multi-objective model with different strategies of minimization of cost, number of wells and time of remediation. The proposed model can be effectively used for the in-situ bioremediation design of contaminated sites.

Application of an Element-free Galerkin Method to Water Wave Propagation Problems

2014 ◽  
Vol 60 (1-4) ◽  
pp. 87-105 ◽  
Author(s):  
Ryszard Staroszczyk
Keyword(s):  
Wave Propagation ◽  
Galerkin Method ◽  
Present Model ◽  
Free Surface Elevation ◽  
Element Free Galerkin Method ◽  
Plane Flow ◽  
Element Free Galerkin ◽  
Proposed Model ◽  
Sloping Bed ◽  
Element Free

Abstract The paper is concerned with the problem of gravitational wave propagation in water of variable depth. The problem is solved numerically by applying an element-free Galerkin method. First, the proposed model is validated by comparing its predictions with experimental data for the plane flow in water of uniform depth. Then, as illustrations, results of numerical simulations performed for plane gravity waves propagating through a region with a sloping bed are presented. These results show the evolution of the free-surface elevation, displaying progressive steepening of the wave over the sloping bed, followed by its attenuation in a region of uniform depth. In addition, some of the results of the present model are compared with those obtained earlier by using the conventional finite element method.

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