A simulation-optimization model which incorporates the flow and contaminant transport simulation model within an optimization program helps in designing the best satisfactory bioremediation system. For the effective bioremediation system design, the groundwater flow and contaminant transport should be simulated at various time steps. For optimal design, groundwater flow and transport modelling is coupled with optimization techniques of Particle swarm optimization. Biodegradation process is simulated by incorporating an instantaneous reaction model. Decision-makers require adequate information...