Effects of Laser Irradiation and Ni Nanoparticles on Biogas Production from Anaerobic Digestion of Slurry

Abdelsalam, E.; Samer, Mohamed; Attia, Yasser A.; Abdel-Hadi, M. A.; Hassan, H. E.; Badr, Y.

doi:10.1007/s12649-018-0374-y

Cited by 33 publications

(19 citation statements)

References 45 publications

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“…A set of biological processes that degrade anaerobically organic materials by microorganisms into biogas is called AD. 26,27 It is a very promising tool that can treat many municipal, sewage, and agricultural wastes where, the digestate can be used as conditioners and important nutrients for various plants. There are numerous parameters that may affect AD, some of which are pH, carbon/nitrogen content ratio, temperature, hydraulic retention time, storage time, and the rate of organic loading.…”

Section: Anaerobic Digestion Of Organic Matermentioning

confidence: 99%

“…Abdelsalam et al 27,101 conducted several studies on the effect of laser radiation of variable wavelengths on methanogenic sources like RF, where the laser beam was ensured to cover the whole RF volume by a beam expander. This research group found that laser of certain wavelength and energy can activate enzymes such as histidine kinase which trigger response regulation via chromophore/photoreceptor.…”

Section: Photobiostimulation Mechanism Of Methanogenic By Lasermentioning

confidence: 99%

“…Abdelsalam et al 27,101 revealed that methane production could be increased by 30% while the increase of biogas production could reach 26% indicated by using 50% RF. The result of their study matches that of Budiyono et al 79 where they showed that 25% to 50% of RF enhanced the biogas production.…”

Section: Photobiostimulating Effects Of Laser Radiationmentioning

confidence: 99%

“…The observations of Abdelsalam et al 27 study and the issues raised by Abdelsalam and Samer 117 agree with those of Gustavsson et al 118 and Bożym et al 119 where they previously documented that methane production is increased in the presence of different nickel amounts in digester substrates in a stable process. Nevertheless, Abdelsalam et al 27 observed a slight increase of biogas production upon using incandescent excitation source on 50% RF for 1 hour in the presence of 2 mg/L Nickel NPs. This result is coherent with that of Tada et al 113 Abdelsalam et al 27 have remarkably indicated that the production of methane and biogas is directly proportional to laser exposure time in the presence of 2 mg/L Nickel NPs in a disagreement with the same group's results in a previous study.…”

Section: Photobiostimulating Effects Of Laser Radiationmentioning

confidence: 99%

“…A set of biological processes that degrade anaerobically organic materials by microorganisms into biogas is called AD 26,27 . It is a very promising tool that can treat many municipal, sewage, and agricultural wastes where, the digestate can be used as conditioners and important nutrients for various plants.…”

Section: Review Of Literaturementioning

confidence: 99%

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Photobiostimulation of anaerobic digestion by laser irradiation and photocatalytic effects of trace metals and nanomaterials on biogas production

2020

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Biogas generation from the latent energy in biomass is one of the most attractive renewable energy sources. This can be attributed to the environmental friendly nature of the process and its less energy requirements. This article reviews the anaerobic digestion of biomass (livestock manure and crop residues) for biogas and methane production as a source of renewable energy. Furthermore, this study investigates the enhancement of biogas and methane production using light and laser radiations. The laser radiation accelerates bacterial division and growth, where this process is termed as "photobiostimulation." Additionally, laser radiation photoactivates the inactive enzymes. The results of this literature review showed that the irradiation of methanogenic bacteria with laser sources increased the biogas production by one and a half fold the traditional method of biogas production. The simultaneous irradiation of both nanomaterials and methanogenic bacteria using laser radiation increased the biogas volume by twofolds the biogas volume resulted from the traditional method of biogas production.

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Section: Anaerobic Digestion Of Organic Matermentioning

confidence: 99%

Section: Photobiostimulation Mechanism Of Methanogenic By Lasermentioning

confidence: 99%

Section: Photobiostimulating Effects Of Laser Radiationmentioning

confidence: 99%

Section: Photobiostimulating Effects Of Laser Radiationmentioning

confidence: 99%

Section: Review Of Literaturementioning

confidence: 99%

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Photobiostimulation of anaerobic digestion by laser irradiation and photocatalytic effects of trace metals and nanomaterials on biogas production

2020

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Enhancing bioelectricity generation from wastewater in microbial fuel cells using carbon nanomaterials

Attia,

Samer,

Mohamed

et al. 2024

J of Chemical Tech & Biotech

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Background: Microbial fuel cells (MFCs) offer a promising approach for treating wastewater and generating electrical energy simultaneously. However, their implementation in wastewater treatment plants is hindered by the limited electricity generation, often attributed to the electrolyte's high resistance. This study aimed to improve bioelectricity generation in MFCs by adding nanomaterials to the electrolyte to enhance conductivity.Results: Three types of nanomaterials, carbon nanotubes (CNTs), graphitic carbon nitride (g‐C3N4), and reduced graphene oxide (r‐GO), were synthesized and addition to the electrolyte at a concentration of 50 mg in 1.5 L. MFC performance was evaluated, employed a Hydraulic Retention Time (HRT) of 140 h, and compared to a control with no nanomaterials added. The addition of nanomaterials significantly improved MFC performance. Compared to the control, the MFCs with CNTs, g‐C3N4, and r‐GO exhibited: Higher voltage: 1.301 V (CNTs), 1.286 V (g‐C3N4), 1.280 V (r‐GO) vs. 0.570 V (control), Increased power density: 14.11 mW/m3 (CNTs), 13.78 mW/m3 (g‐C3N4), 13.66 mW/m3 (r‐GO) vs. 2.71 mW/m3 (control), Enhanced areal power density: 21.06 mW/m2 (CNTs), 20.57 mW/m2 (g‐C3N4), 20.39 mW/m2 (r‐GO) vs. 4.04 mW/m2 (control), and Improved coulombic efficiency: 19.43% (CNTs), 19.19% (g‐C3N4), 19.11% (r‐GO) vs. 8.54% (control).Conclusion: Incorporating nanomaterials into the MFC electrolyte significantly increased bioelectricity generation by 5.21 times and coulombic efficiency by 2.28 times compared to the control. This improvement is attributed to the high specific surface area of the nanomaterials, which facilitates the adhesion and growth of microorganisms around the anode, enhancing direct electron transfer.This article is protected by copyright. All rights reserved.

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Progress and Perspectives of Nanomaterials for Bioenergy Production

Pareek

Mohan

2022

Clean Energy Production Technologies

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Effects of Laser Irradiation and Ni Nanoparticles on Biogas Production from Anaerobic Digestion of Slurry

Cited by 33 publications

References 45 publications

Photobiostimulation of anaerobic digestion by laser irradiation and photocatalytic effects of trace metals and nanomaterials on biogas production

Photobiostimulation of anaerobic digestion by laser irradiation and photocatalytic effects of trace metals and nanomaterials on biogas production

Enhancing bioelectricity generation from wastewater in microbial fuel cells using carbon nanomaterials

Progress and Perspectives of Nanomaterials for Bioenergy Production

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