Bioconversion of High Concentrations of Hydrogen Sulfide to Elemental Sulfur in Airlift Bioreactor

Figure 1

Schematic of the bioreactor system. ALBR: air-lift bioreactor; COMP: air compressor; CSS: cell and sulfur suspension; FM: flow meter; H₂SCYL: H₂S cylinder; OUT: outlet air to hood; P: circulation pump; PDT: pH/DO/Temp sensors; PP: peristaltic pump; PRG: pressure reducer and pressure gauge; REC: recycled cell suspension; SMP: gas/liquid sampling; SS: sulfur settler; T: tanks (1: nutrient; 2: HCl; and 3: sulfur sludge); TJ: tee joint; TWCB: thermostated water circulation bath; VNG: gas needle valve; and VBL: liquid ball valve.