Application of nanoparticles for biogas production: Current status and perspectives

Abdelwahab, Taha Abdelfattah Mohammed; Mohanty, Mahendra Kumar; Sahoo, Prasana; Behera, D.

doi:10.1080/15567036.2020.1767730

Cited by 31 publications

(28 citation statements)

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“…Today's energy-intensive development has led to a surging demand for fossil fuels, which generate environmental pollution and impacts the ecosystem through global warming [1,2]. This has stimulated the search for alternative energy sources that are both sustainable and eco-friendly, to mitigate the environmental crisis [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Engineered Biomaterials and Magnetite on Wastewater Treatment: Biogas and Kinetic Evaluation

et al. 2021

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In this study, the principle of sustaining circular economy is presented as a way of recovering valuable resources from wastewater and utilizing its energy potential via anaerobic digestion (AD) of municipality wastewater. Biostimulation of the AD process was investigated to improve its treatability efficiency, biogas production, and kinetic stability. Addressing this together with agricultural waste such as eggshells (CE), banana peel (PB), and calcined banana peels (BI) were employed and compared to magnetite (Fe3O4) as biostimulation additives via 1 L biochemical methane potential tests. With a working volume of 0.8 L (charge with inoculum to substrate ratio of 3:5 v/v) and 1.5 g of the additives, each bioreactor was operated at a mesophilic temperature of 40 °C for 30 days while being compared to a control bioreactor. Scanning electron microscopy and energy dispersive X-ray (SEM/EDX) analysis was used to reveal the absorbent’s morphology at high magnification of 10 kx and surface pore size of 20.8 µm. The results showed over 70% biodegradation efficiency in removing the organic contaminants (chemical oxygen demand, color, and turbidity) as well as enhancing the biogas production. Among the setups, the bioreactor with Fe3O4 additives was found to be the most efficient, with an average daily biogas production of 40 mL/day and a cumulative yield of 1117 mL/day. The kinetic dynamics were evaluated with the cumulative biogas produced by each bioreactor via the first order modified Gompertz and Chen and Hashimoto kinetic models. The modified Gompertz model was found to be the most reliable, with good predictability.

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Section: Introductionmentioning

confidence: 99%

Effect of Engineered Biomaterials and Magnetite on Wastewater Treatment: Biogas and Kinetic Evaluation

et al. 2021

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“…Ni and Co NPs are promising metallic systems for higher methane yield. 162 Optimization study by Zaidi et al demonstrated that maximum cumulative biogas production using green algae is with 1mg/L Ni Nps loading at 7 pH and 37 0 C. 163 In another study 70.46% enhancement of methane yields and 90.47% reduction in H2S production was reported using cattle manure and 2 mg/L Ni nanoparticle concentration. The addition of Ni nanoparticles increases 31.2% sulfide value and that eventually improves fertilizer value.…”

Section: Please Do Not Adjust Marginsmentioning

confidence: 99%

Nanomaterials: stimulants for biofuels and renewables, yield and energy optimization

et al. 2021

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“…Various studies have analyzed the economic feasibility of utilizing NMDs in AD or DF systems, while considering a wide range of costs and benefits. For instance, the addition of 1 and 2 mg/L of Ni-NPs into a manure-fed AD system, led to achieving a net profit of $20.6 and 19.7/m 3 substrate . , Further, during the treatment of biomass mixture (agricultural residues, manure, and glycerol), it was found that adding n-ZVI (0.1 wt %), which led to an increase in biogas productivity by 50%, would be feasible only if the n-ZVI cost was less than $119/kg; , considering that the market price of n-ZVI is $96/kg, a benefit of $23/kg n-ZVI added could be gained. , For DF reactors, it was reported that supplementing n-Fe 3 O 4 could reduce the required payback period from 14.6 years (for unamended reactor) to 10.5 years (for n-Fe 3 O 4 -added reactor), when being operated at OLR of 4.8 g COD/L/d . Interestingly, the same study showed that, at lower OLR (1.1 g COD/L/d), the payback period of the unamended reactor was negative, referring to the impossibility to compensate for the capital cost.…”

Section: Nmds Toxicity Risk Analysismentioning

confidence: 99%

“…For instance, the addition of 1 and 2 mg/L of Ni-NPs into a manure-fed AD system, led to achieving a net profit of $20.6 and 19.7/m 3 substrate . 211,212 Further, during the treatment of biomass mixture (agricultural residues, manure, and glycerol), it was found that adding n-ZVI (0.1 wt %), which led to an increase in biogas productivity by 50%, would be feasible only if the n-ZVI cost was less than $119/kg; 199,213 considering that the market price of n-ZVI is $96/kg, a benefit of $23/kg n-ZVI added could be gained. 199,213 For DF reactors, it was reported that supplementing n-Fe 3 O 4 could reduce the required payback period from 14.6 years (for unamended reactor) to 10.5 years (for n-Fe 3 O 4 -added reactor), when being operated at OLR of 4.8 g COD/L/d.…”

Section: -Oleic Acid N-mentioning

confidence: 99%

Perspectives on Potential Applications of Nanometal Derivatives in Gaseous Bioenergy Pathways: Mechanisms, Life Cycle, and Toxicity

Elsamadony

Elreedy

Mostafa

et al. 2021

ACS Sustainable Chem. Eng.

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Nanosized metal derivatives (NMDs), referring to metals and their oxides, are extensively utilized as additives for anaerobic digestion (AD) and dark fermentation (DF) processes, for enhancing the production of methane (CH 4 ) and hydrogen (H 2 ), respectively. NMDs-derived positive impacts were widely confirmed in many previous studies; however, no consensus exists about how these have been acquired. Undoubtedly, NMDs affect extracellular electron transfer (EET). Consequently, we explore how biotic−biotic interactions, referring to direct interspecies electron transfer (DIET) among AD partners, and biotic−abiotic exchanges, which are mediated by redox reactions with metals, are affected. In this perspective, the mechanisms behind all those effects are reviewed and explained in detail, considering the specific properties of each NMD, e.g., size and type. We discuss previous studies that offer contradicting interpretations about which process dominates metal oxidation, metal reduction, or DIET. In addition, the fate of NMDs residues in the digestate after the treatment process is discussed, focusing on NMDs toxicity. From previous literature, the environmental impacts are evaluated for the production process of NMDs that are utilized in AD and DF processes via life-cycle assessment. This review provides a comprehensive understanding of NMDs−microbes interactions, which are mandatory for (i) building clear scientific knowledge about processes in play and (ii) engineering favorable conditions to achieve optimum yields in AD and DF processes.

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Application of nanoparticles for biogas production: Current status and perspectives

Cited by 31 publications

References 50 publications

Effect of Engineered Biomaterials and Magnetite on Wastewater Treatment: Biogas and Kinetic Evaluation

Effect of Engineered Biomaterials and Magnetite on Wastewater Treatment: Biogas and Kinetic Evaluation

Nanomaterials: stimulants for biofuels and renewables, yield and energy optimization

Perspectives on Potential Applications of Nanometal Derivatives in Gaseous Bioenergy Pathways: Mechanisms, Life Cycle, and Toxicity

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