2012
DOI: 10.1007/s11270-012-1126-4
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Simultaneous Removal of H2S, NH3, and Ethyl Mercaptan in Biotrickling Filters Packed with Poplar Wood and Polyurethane Foam: Impact of pH During Startup and Crossed Effects Evaluation

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Cited by 34 publications
(20 citation statements)
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“…Although the direct inhibition of sulphur oxidising bacteria by H 2 S alone has not been noted, the reaction of SO 4 2À oxidised from H 2 S with another malodorous sewer gas, NH 3 , to form (NH 4 ) 2 SO 4 has been shown to inhibit both SOB (Nixon, 1997) and SRB (Pikaar et al, 2014). Ammonia gas was not monitored in this study, however this gas with H 2 S and volatile organic compounds make up typical constituents of sewer gases (Hernandez et al, 2012;Kim et al, 2013;Upadhyay et al, 2013) and may have also impacted the growth of both SRB and SOB. Our results show the potential roles played by the organic acid and H 2 S metabolites in the growth and metabolism of fungi and acidophilic bacteria.…”
Section: Effect Of H 2 S Concentrationmentioning
confidence: 81%
“…Although the direct inhibition of sulphur oxidising bacteria by H 2 S alone has not been noted, the reaction of SO 4 2À oxidised from H 2 S with another malodorous sewer gas, NH 3 , to form (NH 4 ) 2 SO 4 has been shown to inhibit both SOB (Nixon, 1997) and SRB (Pikaar et al, 2014). Ammonia gas was not monitored in this study, however this gas with H 2 S and volatile organic compounds make up typical constituents of sewer gases (Hernandez et al, 2012;Kim et al, 2013;Upadhyay et al, 2013) and may have also impacted the growth of both SRB and SOB. Our results show the potential roles played by the organic acid and H 2 S metabolites in the growth and metabolism of fungi and acidophilic bacteria.…”
Section: Effect Of H 2 S Concentrationmentioning
confidence: 81%
“…The pH has a significant impact on treatment efficiency; microbial activity and colonization is disturbed by any modification of pH in the biofilter [39,40]. The pH was therefore monitored in the middle of each stratum, namely at 25 and 75 cm height, and showed a decrease in the two stratums (Fig.…”
Section: Influence Of Ph On the Removal Of H 2 S Dmds And Etshmentioning
confidence: 99%
“…Odor emissions are usually related to hydrogen sulfide (H 2 S), mercaptans (R-SH), organic sulfides (R-S-R), and disulfides (R-S-S-R) ( Barbosa et al 2002;Hernandez et al 2012;Zhang et al 2013). As far as mercaptan is concerned, ethyl mercaptan (EM) is always used as an intermediate and starting material in the manufacture of plastics, insecticides, and antioxidants and as an odorant to serve as a warning property for natural gas NRC US 2013).…”
Section: Introductionmentioning
confidence: 99%
“…To date, common studies have focused on the removal of EM using a continuous bioreactor ArellanoGarcia et al 2010;Hernandez et al 2012;Wan et al 2011). However, these studies showed that 100 % removal of EM could only be achieved when low loading rate was applied under higher empty bed residence times (EBRTs) of 1103 22 s. Therefore, isolation and identification of a highly efficient strain for EM biodegradation is of great importance to ensure its complete removal in an effective and economical bioreactor system.…”
Section: Introductionmentioning
confidence: 99%