Abstract: An application for a system that assures feedback is provided from a student to a professor of an on-line course. The system includes a computer with at least a processor, memory and storage and software running on the computer for accepting inputs indicating the student feedback. Once the student feedback is entered by the student, the software running on the computer determines if the student feedback is valid, and if it is valid, the student feedback is provided to the professor and a final grade is provided to the student. If it is not valid, no final grade is provided.

Abstract: Methods comprise processing wastewater to produce useful products. Preferably wastewater is ash leachate from landfills which is processed using magnetohydrodynamic treatment followed by electrolytic cell treatment to produce sodium hypochlorite. Methods further comprise removal of hazardous substances from wastewater for subsequent storage and processing of wastewater.