Photoautotrophic removal of hydrogen sulfide from biogas using purple and green sulfur bacteria

Struk, Martin; Sepúlveda-Muñoz, Cristian A.; Kushkevych, Ivan; Muñoz, Raúl

doi:10.1016/j.jhazmat.2022.130337

Cited by 9 publications

(6 citation statements)

References 52 publications

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“…This added H 2 S was removed up to 100% in 2 days in the reactor with A. vinosum and up to 90% in 5 days in the case of Cbi. limicola ( Struk et al, 2023 ). For the abiotic control, approximately 33% H 2 S was removed by absorption into the water.…”

Section: Perspective Of Biotechnological Applicationmentioning

confidence: 99%

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Anoxygenic photosynthesis with emphasis on green sulfur bacteria and a perspective for hydrogen sulfide detoxification of anoxic environments

Kushkevych,

Procházka,

Vítězová

et al. 2024

Front. Microbiol.

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The bacterial light-dependent energy metabolism can be divided into two types: oxygenic and anoxygenic photosynthesis. Bacterial oxygenic photosynthesis is similar to plants and is characteristic for cyanobacteria. Bacterial anoxygenic photosynthesis is performed by anoxygenic phototrophs, especially green sulfur bacteria (GSB; family Chlorobiaceae) and purple sulfur bacteria (PSB; family Chromatiaceae). In anoxygenic photosynthesis, hydrogen sulfide (H2S) is used as the main electron donor, which differs from plants or cyanobacteria where water is the main source of electrons. This review mainly focuses on the microbiology of GSB, which may be found in water or soil ecosystems where H2S is abundant. GSB oxidize H2S to elemental sulfur. GSB possess special structures—chlorosomes—wherein photosynthetic pigments are located. Chlorosomes are vesicles that are surrounded by a lipid monolayer that serve as light-collecting antennas. The carbon source of GSB is carbon dioxide, which is assimilated through the reverse tricarboxylic acid cycle. Our review provides a thorough introduction to the comparative eco-physiology of GSB and discusses selected application possibilities of anoxygenic phototrophs in the fields of environmental management, bioremediation, and biotechnology.

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Section: Perspective Of Biotechnological Applicationmentioning

confidence: 99%

“…The biotechnological use of anoxygenic phototrophs has only been the topic of few studies ( Struk et al, 2023 ). However, H 2 S is a frequent contaminant of wastewater ( Kushkevych et al, 2017 , 2018a ), whether industrial or municipal, and of natural gas or biogas ( Struk et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Anoxygenic photosynthesis with emphasis on green sulfur bacteria and a perspective for hydrogen sulfide detoxification of anoxic environments

Kushkevych,

Procházka,

Vítězová

et al. 2024

Front. Microbiol.

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“…This process is carried out by the symbiotic action of bacteria and archaea in the absence of O2 or oxidized forms of nitrogen. Those microorganisms degrade the organic matter present in PWW producing mainly methane (CH4) at concentrations ranging from 40 to 75%, carbon dioxide (CO2) at concentrations of 15 to 60% and other gases at lower concentrations such as hydrogen (H2 > 1%), ammonium (NH3 > 1%), oxygen (O2 > 1%) and hydrogen sulfide (H2S > 3%) [29][30][31]. This type of technology allows the conversion of PWW into a renewable gas energy product, namely biogas.…”

Section: Conventional Piggery Wastewater Treatment Technologiesmentioning

confidence: 99%

“…PPB were originally classified based on their sulfide tolerance and characteristic purple-red colour, although PPB were recently classified according to its class within the phylum Proteobacteria, where PSB belong to the class Gammaproteobacteria and PNSB belong to the class Alphaproteobacteria or Betaproteobacteria [39]. Another photosynthetic bacterial group capable of performing anoxygenic photosynthesis are green sulphur bacteria (GSB) and green non-sulphur bacteria (GNSB), classified in these group according to their sulphur tolerance and their characteristic green colour [31]. On the other hand, microalgae are a diverse group of photosynthetic microorganisms with eukaryotic and prokaryotic species living in marine, freshwater and terrestrial habitats capable of performing oxygenic photosynthesis (oxygen production).…”

Section: Photosynthetic Piggery Wastewater Treatmentmentioning

confidence: 99%

“…Biogas upgrading to biomethane is necessary to remove unwanted gases such as CO2 and H2S if biogas is used as vehicle fuel or injected into natural gas grids. This biogas upgrading step can be carried out using PPB [31,35] [115][116][117] based on the ability of these microorganisms to fix CO2 and support H2S oxidation. Biofertilizers: Biofertilizers are fertilizer biological origin capable of promoting growth and the nutritional quality of plants.…”

Section: Biomass Valorizationmentioning

confidence: 99%

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Piggery Wastewater Treatment Using Photosynthetic Microorganisms

Sepúlveda-Muñoz¹,

Godos²,

Muñoz³

2023

Preprint

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Piggery wastewater (PWW) is characterized by its high concentrations of organic matter and ammonium, and by their odour nuisance. Traditionally, PWW has been treated in open anaerobic lagoons, anaerobic digesters and activated sludge systems, which exhibit high greenhouse gas emissions, a limited nutrients removal and a high energy consumption, respectively. Photosyn-thetic microorganisms can support a sustainable PWW treatment in engineered photobioreactors at low operating costs and with an efficient recovery of carbon, nitrogen and phosphorous. These microorganisms are capable of absorbing solar irradiation through the photosynthesis process to obtain energy, which is used for their growth and associated carbon and nutrients assimilation. Purple phototrophic bacteria (PPB) represent the photosynthetic microorganisms with the most versatile metabolism in nature, while microalgae are the most studied photosynthetic microor-ganisms in recent years. This review describes the fundamentals, symmetry and asymmetry of PWW treatment using photosynthetic microorganisms such as PPB and microalgae. The main photobioreactor configurations along with the potential of PPB and microalgae biomass valori-zation strategies are also discussed.

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