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Performance evaluation of a biofilter treating hydrogen sulfide waste gas with high load in intermittent mode under low temperature

Yin Tang

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Abstract

Performance of biological removal of hydrogen sulfide waste gas in a biofilter packed with the mixtures of chicken manure and polyethylene(PE) was investigated under low temperature.The experiment was carried out in intermittent mode.The removal efficiencies were 100%,100%,100% and 65% with inlet concentration of 3000 mg/m3 and the EBRT of 38s,32s,23s and 13 s respectively.The elimination capacity reached to 812g/(m3.h) with inlet load of 528g/(m3.h).Under the condition of low temperature from 9℃ to 16.5℃,H2S removal efficiency achieved 100% with inlet concentration of 50～3000mg/m3 and EBRT of 38s,32s and 23s.At EBRT of 13s,the removal efficiency could reach to 62%～88%.The results showed that a good performance of the biofilter was obtained with high inlet load and gas velocity under low temperature.

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What this paper is about

Performance of biological removal of hydrogen sulfide waste gas in a biofilter packed with the mixtures of chicken manure and polyethylene(PE) was investigated under low temperature.The experiment was carried out in intermittent mode.The removal efficiencies were 100%,100%,100% and 65% with inlet concentration of 3000 mg/m3 and the EBRT of 38s,32s,23s and 13 s respectively.The elimination capacity reached to 812g/(m3.h) with inlet load of 528g/(m3.h).Under the condition of low temperature from 9℃ to 16.5℃,H2S removal efficiency achieved 100% with inlet concentration of 50～3000mg/m3 and EBRT of 38s,32s and 23s.At EBRT of 13s,the removal efficiency could reach to 62%～88%.The results showed that a good performance of the biofilter was obtained with high inlet load and gas velocity under low temperature.

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Available abstract

Performance of biological removal of hydrogen sulfide waste gas in a biofilter packed with the mixtures of chicken manure and polyethylene(PE) was investigated under low temperature.The experiment was carried out in intermittent mode.The removal efficiencies were 100%,100%,100% and 65% with inlet concentration of 3000 mg/m3 and the EBRT of 38s,32s,23s and 13 s respectively.The elimination capacity reached to 812g/(m3.h) with inlet load of 528g/(m3.h).Under the condition of low temperature from 9℃ to 16.5℃,H2S removal efficiency achieved 100% with inlet concentration of 50～3000mg/m3 and EBRT of 38s,32s and 23s.At EBRT of 13s,the removal efficiency could reach to 62%～88%.The results showed that a good performance of the biofilter was obtained with high inlet load and gas velocity under low temperature.

Key concepts: Hydrogen sulfide, Biofilter, Inlet, Chemistry, Hydrogen, Flue-gas desulfurization, Sulfide, Sulfur

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