An interactive pedagogical methodology, applied to industrial wastewater detoxication process (WWDP) is presented. It is based on a dedicated realor accelerated-time simulator, which can represent and simulate up to five interconnected Continuous Flow Stirred Tank Reactors (CFSTR), commonly used in continuous-flow detoxication processes of industrial sewage effluents. Various aspects of the WWDP, such as: environmental engineering, process modelling and control, real-time supervision, fault management, process optimization (efficiency, safety, operation costs), can be dealt with, either separately or within the same pedagogical module. The simulator has been developed in a freeware environment (Java) and can be used in cyber education via usual internet browsers.