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Schematic diagram of the upflow anaerobic sludge blanket (UASB) reactors sector: (1) Substrate, (2) open and close valve, (3) dosing pump, (4) influent, (5) PVC UASB reactor, (6) sludge, (7) water bath, (8) substrate level, (9) Tedlar bag, (10) biogas outlet, (11) heater, (12) thermometer, (13) PVC mesh coupled synthetic grass, (14) synthetic grass as attached growth, (15) effluent outlet, and (16) outlet container.
