Biofiltration Control of Hydrogen Sulfide 1. Design and Operational Parameters

Yang, Yonghua; Allen, Eric R.

doi:10.1080/1073161x.1994.10467287

Cited by 213 publications

(142 citation statements)

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“…The removal efficiency at this stage reduced to less than 10 % and did not improve after more than 10 days of continued operation under the same conditions. This is similar to examples in the literature which show a drop in removal efficiency of a biofilter at higher concentrations of H2S because of sulphate accumulation which inhibits microbial activity (Ben Jaber et al 2016;Chaiprapat et al 2011;Romero Hernandez et al 2013;Solcia et al 2014;Yang and Allen 1994).…”

Section: Removal Of H2s From the Inlet Airsupporting

confidence: 89%

“…The acidic product produced per volume of biofilter was a 1.15 mL L −1 day −1 . This is considerably less than similar systems which produced leachate in the range of 38 to 2000 mL L −1 day −1 (Abdehagh et al 2011;Chaiprapat et al 2011;Gabriel and Deshusses 2003;Shareefdeen et al 2003b;Solcia et al 2014;Yang and Allen 1994). With careful monitoring and control of the moisture in the biofilter, it is possible to operate a biofilter with a little or no leachate.…”

Section: Production Of Leachatementioning

confidence: 95%

“…Pressure drop occurs in biofilters due to excessive growth of biomass or the compaction and breakdown of the medium (like soil or wood chips) leading to a reduction in the porosity of the medium (Chung et al 2001;Elias et al 2002;Kennes and Veiga 2002;Kim et al 2008;Yang and Allen 1994). The maximum pressure drop in this biofilter was 4 Pa m −1 filter bed, and the value is lower than the pressure drop in conventional biofilters treating H2S (Chung et al 2001;Dumont et al 2012a;Elias et al 2002;Kim et al 2008;Yang and Allen 1994). This is due to the inert ABB media maintaining its structure during the course of this study and the low gas velocity in this biofilter (23 m h −1 ) compared to other studies in the literature.…”

Section: Removal Of H2s From the Inlet Airmentioning

confidence: 99%

“…Previous studies have shown that operating conditions such as the mass loading rate and the amount of moisture in a biofilter have to be carefully controlled to avoid accumulation of sulphate in the biofilter which has an inhibitory effect (Ben Jaber et al 2016;Yang and Allen 1994). Yang and his co-workers have shown that microorganisms that convert H2S to sulphate are inhibited when the sulphate concentration is greater than 0.8 M (Yang and Allen 1994). In this study, it was evident that the bottom section did not remove any H2S from the air (Fig.…”

Section: Moisture and Ion Gradient In Biofiltermentioning

confidence: 99%

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Biofilter for generation of concentrated sulphuric acid from H2S

Rabbani

Charles

Kayaalp

et al. 2016

Environ Sci Pollut Res

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Biofilters are used for the conversion of odorous hydrogen sulphide to odourless sulphate in wastewater treatment plants under the right conditions of moisture and pH. One of the consequences of maintaining the suitable pH and moisture content is the production of large volumes of weakly acidic leachate. This paper presents a biofilter with a maximum H2S elimination capacity of 16.3 g m −3 h −1 and removal efficiency greater than 95 % which produces small volumes (1 mL of solution L −1 of reactor day −1 ) of sulphuric acid with a concentration greater than 5.5 M after 150 days of continuous operation. The concentrated sulphuric acid was produced by intermittently trickling a minimum amount of nutrient solution down the upflow biofilter which created a moisture and pH gradient within the biofilter resulting in an environment at the top for the bacterial conversion of H2S, while sulphuric acid was accumulated at the base. Genetic diversity profiling of samples taken from different sections of the biofilter confirms that the upper sections of the biofilter had the best environment for the bacteria to convert H2S to sulphate. The formation of concentrated sulphuric acid presents an opportunity for the recovery of sulphur from the waste stream as a usable product.

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Section: Removal Of H2s From the Inlet Airsupporting

confidence: 89%

Section: Production Of Leachatementioning

confidence: 95%

Section: Removal Of H2s From the Inlet Airmentioning

confidence: 99%

Section: Moisture and Ion Gradient In Biofiltermentioning

confidence: 99%

See 2 more Smart Citations

Biofilter for generation of concentrated sulphuric acid from H2S

Rabbani

Charles

Kayaalp

et al. 2016

Environ Sci Pollut Res

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“…(1-4)]. Acid formation causes the pH of the bioreactor to fall, which results in substantial reductions in treatment success (Furusawa et al 1984;Yang and Allen 1994). The addition of alkalis in packing material or irrigation water is an effective way to solve this problem, and alkaline biotrickling filters have been used for the effective treatment of hydrogen sulfide odor (González-Sánchez et al 2008).…”

Section: Sulfur-oxidizing Bacteriamentioning

confidence: 99%

Biological technologies for the removal of sulfur containing compounds from waste streams: bioreactors and microbial characteristics

Zhang

Lin

et al. 2015

World J Microbiol Biotechnol

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Waste gases containing sulfur compounds, such as hydrogen sulfide, sulfur dioxide, thioethers, and mercaptan, produced and emitted from industrial processes, wastewater treatment, and landfill waste may cause undesirable issues in adjacent areas and contribute to atmospheric pollution. Their control has been an area of concern and research for many years. As alternative to conventional physicochemical air pollution control technologies, biological treatment processes which can transform sulfur compounds to harmless products by microbial activity, have gained in popularity due to their efficiency, cost-effectiveness and environmental acceptability. This paper provides an overview of the current biological techniques used for the treatment of air streams contaminated with sulfur compounds as well as the advances made in the past year. The discussion focuses on bioreactor configuration and design, mechanism of operation, insights into the overall biological treatment process, and the characterization of the microbial species present in bioreactors, their populations and their interactions with the environment. Some bioreactor case studies are also introduced. Finally, the perspectives on future research and development needs in this research area were also highlighted.

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Microbial ecosystems in compost and granular activated carbon biofilters

Webster

Devinny

Torres

et al. 1997

Biotechnol. Bioeng.

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Compost and granular activated carbon biofilters operated at a wastewater treatment plant simultaneously removed low concentrations of hydrogen sulfide and volatile organic compounds. Through the use of phospholipid fatty acid analyses, the effects of declining pH caused by sulfide oxidation were established for microbial growth, microorganism stress, and microbial community structure. Microorganisms on both media demonstrated increases in microbial densities, varying degrees of environmental stress, and domination by gram‐negative bacteria. However, the declining pH had little effect on compound removal, which was greater than 99% for the hydrogen sulfide and greater than 70% for the oxygenated and aromatic hydrocarbons. The microbial communities adjusted to difficult environmental conditions through acclimation of the species present or by growth of low‐pH‐tolerant species. © 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 53: 296–303, 1997.

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Biofiltration Control of Hydrogen Sulfide 1. Design and Operational Parameters

Cited by 213 publications

References 0 publications

Biofilter for generation of concentrated sulphuric acid from H2S

Biofilter for generation of concentrated sulphuric acid from H2S

Biological technologies for the removal of sulfur containing compounds from waste streams: bioreactors and microbial characteristics

Microbial ecosystems in compost and granular activated carbon biofilters

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