Biofiltration of hydrogen sulfide: Trends and challenges

Vikrant, Kumar; Kailasa, Suresh Kumar; Tsang, Daniel C.W.; Lee, Sang Soo; Kumar, Pawan; Giri, Balendu Shekher; Singh, Ram Sharan; Kim, Ki‐Hyun

doi:10.1016/j.jclepro.2018.03.188

Cited by 121 publications

(71 citation statements)

References 159 publications

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“…The biological removal of H 2 S in biogas has been conducted in gas-phase biological filter reactors (biofilters) and in algal-bacterial photobioreactors using the O 2 photosynthetically produced by microalgae or, in situ, in the headspace of AD vessels through the injection of micro-quantities of O 2 to stimulate the growth and activity of SOBs [5]. However, the main bioprocess employed has been biofiltration due to its high H 2 S removal efficiencies, up to 99-100% depending on the concentration of H 2 S at the inlet, and experience in full-scale implementation for waste gas treatment [10]. The objective of this review was to gather and discuss the current knowledge on microbial ecology in biofiltration units used for the removal of H 2 S from biogas.…”

Section: Biogas From H 2 S (Ppm)mentioning

confidence: 99%

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Borgne

Baquerizo

2019

ChemEngineering

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Bacterial communities’ composition, activity and robustness determines the effectiveness of biofiltration units for the desulfurization of biogas. It is therefore important to get a better understanding of the bacterial communities that coexist in biofiltration units under different operational conditions for the removal of H2S, the main reduced sulfur compound to eliminate in biogas. This review presents the main characteristics of sulfur-oxidizing chemotrophic bacteria that are the base of the biological transformation of H2S to innocuous products in biofilters. A survey of the existing biofiltration technologies in relation to H2S elimination is then presented followed by a review of the microbial ecology studies performed to date on biotrickling filter units for the treatment of H2S in biogas under aerobic and anoxic conditions.

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Section: Biogas From H 2 S (Ppm)mentioning

confidence: 99%

Microbial Ecology of Biofiltration Units Used for the Desulfurization of Biogas

Borgne

Baquerizo

2019

ChemEngineering

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“…where c inlet -H 2 S concentration in raw biogas before adsorption bed, c outlet -H 2 S concentration in biogas after passing the adsorption bed. [16].…”

Section: Methodsmentioning

confidence: 99%

“…In general, the H 2 S removal-methods can be classified as: physical using solubility in water and sorbents [11,12], chemical based on chemical reactions [2,13,14] and biological using microorganisms [15][16][17] or a combination of these [18,19]. As all the methods have advantages and disadvantages, new and improved solutions are investigated.…”

Section: Introductionmentioning

confidence: 99%

Oxidization of hydrogen sulfide in biogas by manganese (IV) oxide particles

Konkol

Cebula

Cenian

2020

Environmental Engineering Research

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Hydrogen sulphide is corrosive to most metallic equipment such as pipelines, compressors, gas storage tanks, engines, turbines and other units. It acts as a strong poison for fuel cells and its combustion leads to SO2 emissions. Due to the problems associated with hydrogen sulphide, it is critical to remove it from biogas before further processing. The removal of hydrogen sulphide from biogas using MnO2, which acts as a sorbent and catalyst, was investigated. The research was conducted in a full-scale agriculture biogas plant using chicken manure and maize silage as substrate. The manganese dioxide (manganese (IV) oxide) was derived from the waste products of a water conditioning system, after manganese removal from drinking water. The obtained results showed significantly better adsorption of hydrogen sulphide and faster regeneration of the bed compared to the bed filled with hydrated iron oxides. The H2S concentration in the treated biogas dropped from about 1,650 to 0-5 ppm.

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“…At higher concentrations, between 10 and 500 ppm, it may cause disorders in respiratory, nervous, cardiovascular and hematological systems, and immediate death above 500 ppm [1].…”

Section: Introductionmentioning

confidence: 99%

“…The interest for biotechniques is increasing because of their high removal efficiency and low running cost [1]. Incidentally, recent study has highlighted that cellular concrete waste, which can be used as packing material for biofiltration [2][3][4], could also be an effective medium for the treatment of H2S in air without any microbial population [5] (i.e in abiotic conditions).…”

Section: Introductionmentioning

confidence: 99%