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The longevity and robustness of bioreactors used for wastewater treatment is determined by the activity of the microorganisms under steady and transient loading conditions. Two identical continuously operated inverse fluidized bed bioreactors (IFB), IFB R1 and IFB R2, were tested for sulphate removal under the same operating conditions for 140 d (Periods I–IV). Later, IFB R1 was used as the control...
This study investigated the impacts of thiosulfate (S2O32−) as well as chemically synthesized and biogenic elemental sulfur (S0) on the rates of sulfur-based denitrification in batch bioassays. The use of S2O32− resulted in the highest denitrification rate (52.5mg N-NO3−/L d), whereas up to 10 times slower nitrate (NO3−) removal was observed with S0. Biogenic S0 was tested for the first time as electron...
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