Effect of Ni-Ferrite and Ni-Co-Ferrite nanostructures on biogas production from anaerobic digestion. (15th October 2019)

• Record Type: Journal Article
• Authors: Abdallah, Muhammed S.; Hassaneen, Fatma Y.; Faisal, Yasmin; Mansour, Mohy S.; Ibrahim, A.M.; Abo-Elfadl, Saleh; Salem, H.G.; Allam, Nageh K.
• Is Part Of: Fuel. Volume 254(2019)
• Publication Date: 2019-10-15
• Subjects: Biogas -- Nanoparticles -- Methane -- Organic waste -- Ferrites; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2019.115673
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: A pressure-based biogas reactor was designed and manufactured. The addition of Ni-Co-Ferrite resulted in 33% increase in the biogas produced. The use of Ni-Ferrite showed 31% increase in the biogas produced. The existence of Co resulted in the highest biogas production of 3318.17 ml. Ni-Co-Ferrite showed methane generation of 1746.58 ml. Abstract: Many Nanoparticles (NPs) were reported to significantly enhance the production of biogas from the anaerobic digestion of organic wastes. Herein, two types of NPs (Ni-Ferrite and Ni-Co-Ferrite) were synthesized using the co-precipitation method and characterized using X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM) with energy dispersive X-ray spectroscopy (EDS) techniques. Three different concentrations (20, 70 and 130 mg/l) of each type were added to separate biogas reactors to study their effect on the biogas production compared to blank reactor. A pressure-based biogas reactor was designed and manufactured specifically to test the effect of the NPs on the anaerobic digestion process. The pressure of the daily produced biogas was monitored using a pressure transducer and the volume of the biogas was calculated at standard conditions of pressure (1.013 bar) and temperature (15 °C). The results showed an increase in the biogas production of 6.6%, 5.9% and 32.9% upon the use of Ni-Co-Ferrite NPS at concentrations of 20, 70, and 130 mg/l compared to blank reactor, respectively. In addition, the Ni-Ferrite NPs achieved biogas enhancements of 30.8%, 28.5%, and 17.9% at concentrations of 20, 70 and 130 mg/l, respectively.