2021/1/1/ · Abstract. Carbon dioxide (CO 2) is an important heat-trapping gas that has received much attention over the last decade due to its role in global warming. The reduction of its emission and its recovery and reuse are the main factors for building a sustainable society. A major part of this process is the valorization of organic wastes.

Introduction. The ongoing climate crisis, mainly caused by the emission of greenhouse gases (GHGs), gives rise to an urgent need for solutions to re-convert industrial waste gases and emissions into useful chemicals ().Concentrated streams of carbon dioxide (CO 2) are continuously generated and emitted by a variety of anthropogenic activities.These include

Enteric fermentation accounted for as much as 30% of global CH 4 emissions or about 40% of total global emissions from the agricultural sector in 2011 (2,071 Mt CO 2 e). Cattle contribute most of the GHG emissions from enteric fermentation globally, followed by other ruminants such as buffalo, sheep, and goats. (Fig. 1).

The stacked organic material inside the fermenter box gets sprinkled with percolate at specific intervals, which is lead back to the percolate tank after seeping through the biomass. Biogas is emission-neutral and avoids climate-damaging methane emissions from landfills. Methane is 25 times more potent than the greenhouse gas CO2, which is ...

2013/7/1/ · H 2 is strategically important, as it is associated with low CO 2 emission levels and is environmentally benign and sustainable. H 2 fermenter. Batch H 2 fermentation of organic solid waste ... emissions analysis indicates that conversion of the 10% of Australian FW has the potential to lower GHG emissions by 639,852 tonnes per

2021/3/26/ · Fermentation is a process operated by microorganisms to break down organic compounds to obtain energy through anaerobic metabolism. This biological

aerobic fermentation of single organic waste, poor fertilizer efficiency, and high greenhouse gas emission, multi-material collaborative aerobic composting measures have been developed24–26

2024/5/28/ · In this report, based on spectrum coupling, thermal effect, and multiphase flow properties of hydrogen production, continuous pilot-scale biohydrogen production systems (dark and photo

2024/1/2/ · Bio-H 2 production using dark fermentative processes has known drawbacks, which include a low yield of H 2 due to metabolic fundamentals such as stabilization issues of oxidative-reductive reaction, weak disintegration and hydration abilities, and rapid intake by methanogens, homoacetogens, and sulfate-reducing

2006/2/1/ · A reduction of CH 4 emissions by surface crusts, as observed by Husted (1994) for slurries, is not relevant here, as fermentation residues do not form crusts easily. Therefore, the emission of CH 4 depends on the content of organic dry matter (ODM) and was related to the volume of the stored slurry (Table 2).

2022/11/1/ · Unlike photo-fermentation, dark fermentation does not completely convert of substrate and produce byproduct as organic acid due to absence of solar energy, so hydrogen production efficiency of dark fermentation is about 33 % comparison with photo-fermentation per unit substrate; further, the byproducts produced during dark

2022/9/6/ · As a result, extracting energy from organic waste is unquestionably crucial for the development of a low-carbon “energy saving and emission reduction” model as well as the development of renewable energy (Yi et al., 2018; Shen and Zhang, 2020; Ma et al., 2021). It is predicted that by 2070, 70% of the world’s energy will depend on

2022/9/12/ · Bio-hydrogen production can even be combined with anaerobic fermentation, which produces CH 4, to deliver biohythane (H-CNG), which improves engine performance while lowering emissions [3, 11], because the synthesis of VFAs throughout the acidogenesis of organic substances is an antecedent to methanogenesis.

2016/1/27/ · To meet the demand for these products while simultaneously reducing greenhouse gas emissions, low-carbon fuels (i.e., fuels that emit less CO 2 over their life cycle of production and use relative to fossil fuels) and chemicals are needed. One renewable, non-fossil derived source for low-carbon fuels and chemicals is biomass.