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Problem A 15,000-m3/d flow of groundwater contaminated with 17 mg/L trichloroethylene (TCE) is treated by biological transformation into ethylene (C2H4) by adding ethanol a) Determine e donor and e acceptor of metabolic reaction b) Equilibrate two half-reactions and overall reaction c) Is the process feasible based on thermodynamics, on microbial ecology? ΔGo(w) (TCE → ethylene)–20.0 kJ/e-eq ΔGo”(w) (CO2 → ethanol) = 31.0 kJ/e-eq . . d) How much ethanol (kg/d) must be added for complete removal of TCE from the water?