Microbial diversity of marine shrimp pond sediment and its variability due to the effect of immobilized media in biohydrogen and biohythane production

Khanthong, Kamonwan; Purnomo, Chandra Wahyu; Daosud, Wachira; Laoong-u-thai, Yanisa

doi:10.1016/j.jece.2021.106166

Cited by 8 publications

(1 citation statement)

References 96 publications

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“…The Tolumonas genus is noteworthy for its fermentative qualities, its isolation from a wastewater treatment plant, and its role as an electroactive bacterium [42,43]. Tolumonas auensis has also been detected within mixed cultures, contributing to H 2 production during dark fermentation, particularly in the acid and H 2 production phase [44]. T. auensis is recognized for its involvement in the production of acetate, ethanol, propionate, formate, and H 2 , particularly when cultivated in a glucose-rich environment [45].…”

Section: Microbial Community Structure In the Consortiamentioning

confidence: 99%

Enrichment of a Mixed Culture of Purple Non-Sulfur Bacteria for Hydrogen Production from Organic Acids

Smith,

Toledo-Alarcón,

Schiappacasse

et al. 2023

Sustainability

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Hydrogen (H2) as a clean fuel holds global potential and can be produced through bio-processes. To enhance bioH2 yields, integrated systems have been proposed, combining dark fermentation (DF) of wastewater with a subsequent photofermentation (PF) stage involving purple non-sulfur (PNS) bacteria. Mixed cultures of PNS bacteria and their microbial ecology have been relatively understudied despite the known benefits of mixed cultures in industrial applications. The aim of this study was to obtain various mixed cultures of PNS bacteria under different environmental conditions during the enrichment stage. Four different mixed cultures were obtained (A, B, C, and D). However, in the H2 production phase, only Consortium A, which had been enriched with malic acid as the carbon source, exposed to 32 W m−2 of irradiance, and subjected to intermittent agitation, produced H2 with a yield of 9.37 mmol H2 g−1 COD. The consortia enriched were a hybrid of PF and DF bacteria. Especially in Consortium A, Rhodopseudomonas palustris was the dominant organism, and various DF bacteria were positively associated with H2 production, with their dominance comparable to that of PNS bacteria. Despite the reported low yields, optimizing environmental conditions for this culture could potentially enhance hydrogen production from DF effluents.

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Section: Microbial Community Structure In the Consortiamentioning

confidence: 99%

Enrichment of a Mixed Culture of Purple Non-Sulfur Bacteria for Hydrogen Production from Organic Acids

Smith,

Toledo-Alarcón,

Schiappacasse

et al. 2023

Sustainability

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Leftover Living Cells’ Derived Biomass and Microorganisms as a Source for Hydrogen Energy Production

Harikrishnan,

Mani,

Kumar

et al. 2024

New Technologies for Energy Transition Based on Sustainable Development Goals

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Performance assessment of up-flow anaerobic multi-staged reactor followed by auto-aerated immobilized biomass unit for treating polyester wastewater, with biogas production

Hassan,

Kriaa,

Wahaballa

et al. 2024

Appl Water Sci

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Polyester manufacturing industries produce highly polluted effluents, containing organics, nutrients, trace metals, and 1,4-dioxane, requiring a high degree of treatment before being discharged into the water bodies. This study focused on removing complex pollutants from a diluted polyester industrial effluent (DPIE) via a cost-efficient anaerobic/aerobic combined system, with biogas recovery. The integrated pilot-scale system was composed of an up-flow anaerobic multi-staged reactor (UASR; V = 41 L) followed by an auto-aerated immobilized biomass (AIB; Vsponge = 9.54 L) unit and operated at a total organic loading rate (OLR) of 0.75 ± 0.16 g COD/L/d and pH of 7.14 ± 0.14 at 25 °C. The UASR achieved removal efficiencies of 17.82 ± 3.14% and 15.90 ± 3.08% for chemical oxygen demand (COD, total and soluble) and 15.83 ± 4.68% for total Kjeldahl nitrogen (TKN), with bio-CH4 yield of 263.24 ± 31.98 mL/g COD. Adding the AIB unit improved the overall CODtotal, CODsoluble, and TKN to 93.94 ± 2.39%, 94.84 ± 2.23%, and 75.81 ± 3.66%, respectively. The NH4-N removal efficiency was 85.66 ± 2.90% due to the oxic/nitrification condition on the sponge’s outer surface. The entire system also achieved 73.26 ± 2.68%, 77.48 ± 5.74%, and 81.26 ± 6.17% removals for Fe (3.93 ± 0.95 ppm), Zn (5.92 ± 2.32 ppm), and 1,4 dioxane (2.50 ± 0.61 ppm). Moreover, the UASR-AIB maintained removal efficiencies of 76.53 ± 8.47% and 77.51 ± 7.38% for total suspended solids (TSS: 335.95 ± 42.84 mg/L) and volatile suspended solids (VSS: 263.50 ± 36.94 mg/L). Regarding the DPIE toxicity level, the EC50 value increased from 12.9 to 39.4% after UASR/AIB application. The UASR’s microbial community at the genus level demonstrated that the synergistic cooperation of solubilization, hydrolysis, acidogenesis, acetogenesis, and methanogenesis was responsible for the degradation of DPIE components.

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Microbial diversity of marine shrimp pond sediment and its variability due to the effect of immobilized media in biohydrogen and biohythane production

Cited by 8 publications

References 96 publications

Enrichment of a Mixed Culture of Purple Non-Sulfur Bacteria for Hydrogen Production from Organic Acids

Enrichment of a Mixed Culture of Purple Non-Sulfur Bacteria for Hydrogen Production from Organic Acids

Leftover Living Cells’ Derived Biomass and Microorganisms as a Source for Hydrogen Energy Production

Performance assessment of up-flow anaerobic multi-staged reactor followed by auto-aerated immobilized biomass unit for treating polyester wastewater, with biogas production

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