BioreactorsAnaerobiosisSewageNuclear ReactorsWaste Disposal, FluidEnzymes, ImmobilizedWater PurificationRefuse DisposalMethaneIndustrial WasteMethanosarcinaceaeBiodegradation, EnvironmentalWaste WaterNitrificationBiological Oxygen Demand AnalysisWaste ManagementBiofuelsRNA, Ribosomal, 16SNitrosomonasMethanosarcinalesCells, ImmobilizedBacteriaBiomassNuclear FissionPentachlorophenol