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Resumen de Effects of CO2 and methanol on the degradation of hydrogen sulfide in a biotrickling filter

Yaomin Jin, María C. Veiga, Christian Kennes

  • In this study, the effects of CO2 and methanol on the performance of a biotrickling filter (BTF) packed with plastic Pall rings and treating a H2S-polluted waste gas were investigated to establish the optimum operating conditions and design criteria. The CO2 concentration had no effect on the biodegradation at H2S concentrations below 50 ppm. In the range of 50-127 ppm H2S, CO2 concentrations between 865-1087 ppm enhanced H2S removal, while higher concentrations of 1309-4009 ppm CO2 slightly inhibited H2S removal. However, the methanol concentration had a negative effect on the bioreactor’s performance. In the range of 0-81 ppm methanol, the maximum elimination capacity of H2S dropped from 23.82 to 6.42 g H2S.m-3.h-1 after adding that carbon source.


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