Biohydrogen production from wastewater is a new, low cost, sustainable energy development. In this study, dark fermentation, as type of biological biohydrogen, was carried out using NiFe2O4 nanoparticle catalysts. Implementing the Central Composite Design model, operational parameters including temperature, pH, and dosage were optimized. According to spectroscopic microscopic analyses, nanopart...

Hydrogen gas (H2) is an energy carrier that does not generate carbon dioxide emissions during combustion, but several processes in use for its production demand high inputs associated with fossil fuels and greenhouse emissions. Biological processes, such as dark fermentation (DF), have the potential to remove dependency on H2 production. DF a process encourages fermentative bacteria ferment org...

The current energy and environmental crisis, linked to increasing industrialisation, has progressively driven the adoption of solutions focused on circular life cycle thinking, such as waste management with resource recovery decarbonization technologies. In this context, study was built quantify performance a two-stage wastewater treatment process (dark fermentation anaerobic digestion) in whic...

a r t i c l e i n f o Fuzhuan tea is a traditional preparation of Camellia sinensis L. (Theaceae) from Hunan, China, that is fermented with the fungus Eurotium cristatum. Metabolomic analysis was performed on fuzhuan tea extracts and compared to extracts of non-fermented green teas using ultra-performance liquid chromatography/time of flight-mass spectrometry (UPLC-ToF-MS). Principal component ...

This paper aims to perform a systematic review, with bibliometric approach, of the techno-economic evaluation studies hydrogen production. To achieve this objective, comprehensive outline production processes from fossil and renewable sources is presented. The results reveal that electrolysis, classified as water splitting, most investigated process in literature since it contributes reduction ...

This study highlights biohydrogen production enrichment through NiO and CoO nanoparticles (NPs) inclusion to dark fermentation of rice mill wastewater using Clostridium beijerinckii DSM 791. (~26 nm) (~50 NPs were intrinsically prepared via facile hydrothermal method with polyhedral morphology high purity. Dosage dependency studies revealed the maximum characteristics for 1.5 mg/L concentration...

BACKGROUND AND AIMS This paper examines the basis of the greater tolerance of an indica rice cultivar FR13A to complete submergence compared with relatively intolerant japonica rice CT6241. We study whether this superior tolerance is related to its greater tolerance to O2 shortage and to an ability to run a more favourable rate of alcoholic fermentation during and after O2 deprivation. METHODS ...

Cyanobacteria are considered good models for biohydrogen production because they are relatively simple organisms with a demonstrable ability to generate H2 under certain physiological conditions. However, most produce only little H2, revert readily to H2 consumption, and suffer from hydrogenase sensitivity to O2. Strains of the cyanobacteria Lyngbya aestuarii and Microcoleus chthonoplastes obta...