Improving the anaerobic digestion of sewage sludge by adding cobalt nanoparticles.

This work evaluated the effects of cobalt nanoparticles (CoNPs) (0.025-7 mg/g) on the intensification of sewage sludge anaerobic digestion (AD) using biochemical methane potential (BMP) tests. This study was motivated by the need to improve the efficiency and stability of anaerobic digestion of sewage sludge, a critical process in waste management and renewable energy production.

Influence of zero-valent iron nanoparticles on anaerobic digestion of swine manure: effects on methane yield.

This study evaluated the effect of zero-valent iron nanoparticles (NZVI) on the anaerobic digestion of swine manure. A wide range of doses of NZVI was evaluated (5, 10, 15, 20, 25, 50, and 100 mgFe°/gVS). The maximum methane yield of 0.

Nanoferrosonication: A novel strategy for intensifying the methanogenic process in sewage sludge.

In this work, the effect of coupling ultrasonic pretreatment with dosing of zero-valent iron nanoparticles (nanoferrosonication, "NFS") to improve the anaerobic digestion of sewage sludge was studied. Biochemical methane potential tests were conducted at 15,000 and 25,000 kJ/kg and their combinations with 2 and 7 mgFe/g. The biogas yield increased from 106 (control) to 143 (25,000 kJ/kg) and 308 mL/g with NFS (7 mgFe/g + 15,000 kJ/kg).

Enhancing the performance and stability of the anaerobic digestion of sewage sludge by zero valent iron nanoparticles dosage.

This work studied the effects on the anaerobic digestion of sewage sludge by zero valent iron nanoparticles (NZVI) dosage. Biochemical methane potential tests were carried out with 5-9 mg/g (99.7%, 40-60 nm).