Structure of the bacterial community in a biofilter during dimethyl sulfide (DMS) removal processes

Chung, Ying‐Chien; Cheng, Chiu-Yu; Chen, Tzu‐Yu; Hsu, J C; Kui, Chun-Chi

doi:10.1016/j.biortech.2010.03.131

Cited by 24 publications

(7 citation statements)

References 17 publications

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“…It has been suggested that more work on microbial ecology of biofilters is needed, in particular for monitoring microbial populations dynamics during these treatments. Recently, molecular techniques have recently been used to determine the composition of microbial communities in biofiltration processes and to monitor biofilters colonization by specific degradative populations (Chung et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Biofiltration of reduced sulphur compounds and community analysis of sulphur-oxidizing bacteria

Ramírez

Fernández

Granada

et al. 2011

Bioresource Technology

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a b s t r a c tThe present work aims to use a two-stage biotrickling filters for simultaneous treatment of hydrogen sulphide (H 2 S), methyl mercaptan (MM), dimethyl sulphide (DMS) and dimethyl disulphide (DMDS). The first biofilter was inoculated with Acidithiobacillus thiooxidans (BAT) and the second one with Thiobacillus thioparus (BTT). For separate feeds of reduced sulphur compounds (RSC), the elimination capacity (EC) order was DMDS > DMS > MM. The EC values were 9.8 g MM-S /m 3 /h (BTT; 78% removal efficiency (RE); empty bed residence time (EBRT) 58 s), 36 g DMDS-S /m 3 /h (BTT; 94.4% RE; EBRT 76 s) and 57.5 g H2S-S /m 3 /h (BAT; 92% RE; EBRT 59 s). For the simultaneous removal of RSC in BTT, an increase in the H 2 S concentration from 23 to 293 ppmv (EBRT of 59 s) inhibited the RE of DMS (97-84% RE), DMDS (86-76% RE) and MM (83-67% RE). In the two-stage biofiltration, the RE did not decrease on increasing the H 2 S concentration from 75 to 432 ppmv.

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Section: Introductionmentioning

confidence: 99%

Biofiltration of reduced sulphur compounds and community analysis of sulphur-oxidizing bacteria

Ramírez

Fernández

Granada

et al. 2011

Bioresource Technology

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“…The negligible impact of nitrogen and phosphorus addition on H 2 S removal should be most likely related to their presence in the organic packing material used, composted wood mulch and pine bark. In addition, it was shown that in the presence of a mixture of sulfur compounds, H 2 S is preferentially metabolized [26,37]. An increase of the pollutant concentrations (7.6 mg m À3 -phase 2 -from day 14 to day 79) clearly highlighted the influence of nutrients supply on the degradation of EtSH and DMDS.…”

Section: Influence Of Nutrients Supply On Treatment Performancementioning

confidence: 96%

Impact of nutrients supply and pH changes on the elimination of hydrogen sulfide, dimethyl disulfide and ethanethiol by biofiltration

Jaber

Anet²,

Amrane

et al. 2014

Chemical Engineering Journal

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h i g h l i g h t sThe treatment of sulfur odorous compounds in mixture, H 2 S, DMDS and EtSH by biofiltration was examined. Removal efficiencies of biofilters packed with pine bark and composted wood mulch were compared. The degradation of the three compounds decreased as follows: H 2 S > DMDS > EtSH. Contrarily to EtSH and DMDS, H 2 S removal was not affected by the lack of nutrients in the biofilter. pH decrease caused by H 2 SO 4 accumulation impacted EtSH and DMDS degradation contrarily to H 2 S removal. a b s t r a c tThe treatment of sulfur odorous compounds in mixture, hydrogen sulfide (H 2 S), dimethyl disulfide (DMDS) and ethanethiol (EtSH), by biofiltration was examined. A significant effort was focused on the impact of nutrients supply, without forgetting the effect of other parameters such as the pH, on the process performances. Removal efficiencies of three biofilters packed with pine bark and composted wood mulch and sprinkled by different nutritive solutions were compared.Owing to the biodegradability of H 2 S, its removal was not affected by the lack of nutrients in the biofilter. However, for EtSH and DMDS, considered as more recalcitrant, the influence of nutrients on biodegradation was clearly observed; it was enhanced when the supplementation in the watering solution was increased. Furthermore, EtSH removal yield increased from 80% in the absence of supplementation to an almost total removal in the presence of nutrients in the watering solution. The degradation of the three compounds decreased as follows: H 2 S > DMDS > EtSH. The impact of the pH of the packing materials was also underlined. The decrease in pH caused by the accumulation of sulfuric acid in the packing material, the most abundant product of the biological oxidation of sulfur compounds, led to a reduction of the elimination efficiencies of EtSH and DMDS; while the microorganisms involved in H 2 S degradation appeared active in a large pH range, from less than 3 to close to 9.

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“…Equally important in the aspect of the formation of hydrogen sulphide in the air pollution dispersion terms are agriculture and food industries. Fermentation takes place in industrial processes and other organic substances in anaerobic decomposition, where stands organic and inorganic sulfur-containing material (Chung et al, 2001(Chung et al, , 2010Hartikainen et al, 2000Hartikainen et al, , 2011.…”

Section: Introductionmentioning

confidence: 99%

Cleaning of H2s From Polluted Air Using Peat Biofilter

Vaiškūnaitė

2020

Science - Future of Lithuania

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Every year about 64 thousand tons of polluted air is being released to the ambient air. More than 30% of this pollution consists of toxic sulfur compounds. The properties of biological air cleaning technology – biofoltration with peat media – has been discussed in the article. Research was performed by using biofilter from Vilnius Gedimi-nas technical university laboratory. During testing ambient air, polluted with sulfur dioxide, was pulled through the biomedia with division of Thiobacillus microorganisms and calculations of cleaning efficiency were performed. Was determined the efficiency of peat biofilter charge (changing the technical characteristics of the air flow rate, the number of layers, the pollutant concentration value) depending on the nature of the investigated sulfur compounds and their concentrations.

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Structure of the bacterial community in a biofilter during dimethyl sulfide (DMS) removal processes

Cited by 24 publications

References 17 publications

Biofiltration of reduced sulphur compounds and community analysis of sulphur-oxidizing bacteria

Biofiltration of reduced sulphur compounds and community analysis of sulphur-oxidizing bacteria

Impact of nutrients supply and pH changes on the elimination of hydrogen sulfide, dimethyl disulfide and ethanethiol by biofiltration

Cleaning of H2s From Polluted Air Using Peat Biofilter

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