Evaluation of a packing material for the biodegradation of H2S and product analysis

Ηλίας, Α.; Barona, Astrid; A, Arreguy; Ríos, Jesús Sigifredo Valencia; Aranguiz, I.; Peñas, J.

doi:10.1016/s0032-9592(01)00287-4

Cited by 114 publications

(69 citation statements)

References 17 publications

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“…3), so H 2 S load were much higher in the LPB than in the UPB. This was consistent with previous findings, which found that biodegradation products were mainly produced at the first and second modules of the biofilter, where higher amounts of the contaminant were received (Elias et al, 2002). The elimination capacity of H 2 S in LPB was also larger than that in UPB, indicating that when the removal of H 2 S varied along the PUFC packed biofilter bed, the distribution of biodegradation products changed accordingly.…”

Section: Distribution Of H 2 S Biooxidation Products In the Biofiltersupporting

confidence: 93%

“…The main H 2 S biooxidation products are elemental sulfur and sulfate (Chung et al, 1996;Elias et al, 2002). Biodegraded products should accumulate on the packing material.…”

Section: Distribution Of H 2 S Biooxidation Products In the Biofiltermentioning

confidence: 99%

“…Bacteria such as Thiobacillus, Thiosphaera, Sulfolobus, Pseudomonas and Alcaligenes, are principal microorganisms for H 2 S biodegradation in previous reports (Chung et al, 1996;Honma and Akino, 1998;Omri et al, 2011;Ramírez et al, 2011). To optimize this process, previous studies have demonstrated the direct impacts of media moisture content, pH and temperature parameters on pollutant removal efficiency (Elias et al, 2002;Morgan-Sagastume and Noyola, 2006;Jover et al, 2012;Charnnok et al, 2013). The analysis of physicochemical parameters should be associated with microbial biodegradation to both improve control and maintain maximum efficiency of the biofilters.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

H2S removal and bacterial structure along a full-scale biofilter bed packed with polyurethane foam in a landfill site

Li¹,

Han²,

Xu³

et al. 2013

Bioresource Technology

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Section: Distribution Of H 2 S Biooxidation Products In the Biofiltersupporting

confidence: 93%

“…The main H 2 S biooxidation products are elemental sulfur and sulfate (Chung et al, 1996;Elias et al, 2002). Biodegraded products should accumulate on the packing material.…”

Section: Distribution Of H 2 S Biooxidation Products In the Biofiltermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

H2S removal and bacterial structure along a full-scale biofilter bed packed with polyurethane foam in a landfill site

Li¹,

Han²,

Xu³

et al. 2013

Bioresource Technology

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“…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%

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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“…Moreover, cow manure compost in biofilter columns has shown considerable potential for H 2 S removal, albeit through oxidation as well as precipitation (Zicari, 2003). Similarly, a biofiltration packing material based on pig manure and sawdust has proven to be effective at degrading H 2 S in gas streams (Elias et al, 2002).…”

Section: Introductionmentioning

confidence: 99%