Current challenges and perspectives in gas fluxes biotreatment

Gabaldón, Carmen; San‐Valero, Pau; Quijano, Guillermo

doi:10.1016/b978-0-12-819064-7.00001-7

Cited by 3 publications

(3 citation statements)

References 86 publications

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“…The main parameters that allow for the comparison of biofiltration performance are listed together with their corresponding equations in Table 3 [3,19,24,39,47]. [29,30,39,44].…”

Section: Traditional Biofiltration Efficiency Parametersmentioning

confidence: 99%

“…Biotrickling filters (BTF) are a type of closed biofilter combined with a bioreactor containing a microorganisms culture or a nutrient solution container. These filters are different to other biological solutions such as bioscrubbers as they contain packing material in the biofiltration section, while for bioscrubbers the biofiltration is undertaken in two stages: firstly, a column containing a liquid culture to absorb the pollutant is used and then a bioreactor is used in order to carry out the pollutant degradation [19]. BTFs are one of the most widely used biological technologies to perform biogas desulfurisation, because of their lower investment, operation, and maintenance costs, as well as for their greater energy efficiency, both in the removal of foul smells and in industrial-scale applications for biogas treatment [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review

et al. 2021

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The agriculture and livestock industry generate waste used in anaerobic digestion to produce biogas containing methane (CH4), useful in the generation of electricity and heat. However, although biogas is mainly composed of CH4 (~65%) and CO2 (~34%), among the 1% of other compounds present is hydrogen sulphide (H2S) which deteriorates engines and power generation fuel cells that use biogas, generating a foul smell and contaminating the environment. As a solution to this, anoxic biofiltration, specifically with biotrickling filters (BTFs), stands out in terms of the elimination of H2S as it is cost-effective, efficient, and more environmentally friendly than chemical solutions. Research on the topic is uneven in terms of presenting performance markers, underestimating many microbiological indicators. Research from the last decade was analyzed (2010–2020), demonstrating that only 56% of the reviewed publications did not report microbiological analysis related to sulphur oxidising bacteria (SOB), the most important microbial group in desulphurisation BTFs. This exposes fundamental deficiencies within this type of research and difficulties in comparing performance between research works. In this review, traditional and microbiological performance markers of anoxic biofiltration to remove H2S are described. Additionally, an analysis to assess the efficiency of anoxic BTFs for biogas desulphurisation is proposed in order to have a complete and uniform assessment for research in this field.

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“…The main parameters that allow for the comparison of biofiltration performance are listed together with their corresponding equations in Table 3 [3,19,24,39,47]. [29,30,39,44].…”

Section: Traditional Biofiltration Efficiency Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review

et al. 2021

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“…According to the stoichiometric equations abovementioned, the first product of the H 2 S oxidation is elemental sulfur S 0 , which can be converted into sulfate SO 4 2− in the case of excess oxygen amounts (S 0 + 1.5O 2 + H 2 O → SO 4 2− + 2H + ). It was admitted that the accumulation of S 0 in a biotrickling filter leading to bed clogging is the main drawback of these bioreactors [18,19]. As the washing of the filter bed is difficult, and as S 0 is insoluble in the recirculating liquid, it is preferable to operate in oxygen excess to oxidize S 0 into SO 4…”

Section: Introductionmentioning

confidence: 99%

A Two-Stage Biogas Desulfurization Process Using Cellular Concrete Filtration and an Anoxic Biotrickling Filter

Poser

Silva

Peu³

et al. 2022

Energies

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A two-stage desulfurization process including an abiotic filtration using cellular concrete waste (first stage) and an anoxic biotrickling filter filling with an inoculated expanded schist material (second stage) was investigated to remove H2S in mimic biogas with limited O2 amount (ranged from 0.5 to 0.8%). The two-stage process was able to satisfactorily remove H2S for all experimental conditions (RE > 97%; H2S concentration = 1500 mg m−3; total Empty Bed Residence Time (EBRT) = 200 s; removal capacity (RC) = 26 g m−3 h−1). Moreover, at a total EBRT = 360 s (i.e., 180 s for each stage), the H2S loading rate (LR) was almost treated by the bed of cellular concrete alone, indicating that abiotic filtration could be applied to satisfactorily remove H2S contained in the gas. According to the H2S concentration entering the biotrickling filter, the majority end-product was either elemental sulfur (S0) or sulfate (SO42−). Thus, the ability of the abiotic filter to remove a significant part of H2S would avoid the clogging of the biotrickling filter due to the deposit of S0. Consequently, this two-stage desulfurization process is a promising technology for efficient and economical biogas cleaning adapted to biogas containing limited O2 amounts, such as landfill biogas.

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Progressing Climate Changes and Deteriorating Air Quality as One of the Biggest Challenges of Sustainable Development of the Present Decade in Poland

2020

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Among the biggest challenges facing our civilization is slowing down the rate of climate change and improving air quality in cities. This cannot be achieved in isolation from the sustainability and intensification of relevant research. The aim of this Special Issue: Current Trends in Emission Control and Forecasting of Air Quality and Climate Changes is to publish selected high-quality papers from the 15th Scientific Conference POL-EMIS 2020: Current Trends in Air and Climate Protection—Control Monitoring, Forecasting, and Reduction of Emissions (19–21 October 2020, Wroclaw) and other papers related to the development of: low-emission fuels, industrial technologies, and energy generation, including renewable energy sources (RES); technology for reducing/eliminating emissions from low municipal sources and transport; innovative methods of waste gas purification; emission and immission control methods (including odors); prospective ways of counteracting climate change; indoor air protecting methods; development of mathematical modeling of air quality; new directions in forecasting the effects of air pollution and climate change and air quality management.

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Current challenges and perspectives in gas fluxes biotreatment

Cited by 3 publications

References 86 publications

Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review

Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review

A Two-Stage Biogas Desulfurization Process Using Cellular Concrete Filtration and an Anoxic Biotrickling Filter

Progressing Climate Changes and Deteriorating Air Quality as One of the Biggest Challenges of Sustainable Development of the Present Decade in Poland

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