A technological overview of biogas production from biowaste

The current irrational use of fossil fuels and the impact of greenhouse gases on the environment are driving research into renewable energy production from organic resources and waste. The global energy demand is high, and most of this energy is produced from fossil resources. Recent studies report that anaerobic digestion (AD) is an efficient alternative technology that combines biofuel production with sustainable waste management, and various technological trends exist in the biogas industry that enhance the production and quality of biogas. Further investments in AD are expected to meet with increasing success due to the low cost of available feedstocks and the wide range of uses for biogas (i.e., for heating, electricity, and fuel). Biogas production is growing in the European energy market and offers an economical alternative for bioenergy production. The objective of this work is to provide an overview of biogas production from lignocellulosic waste, thus providing information toward crucial issues in the biogas economy

Scale-Up Operations for Biogas Production:Analysis on Critical Factors Governing Large-Scale Operations

Anaerobic digestion (AD) is a unique process where different microbial species decompose organic materials in the absence of oxygen and has been widely practiced in full-scale facilities all over the world. Several AD techniques have been applied to convert livestock manures, wastewaters, and solid lignocellulosic waste into biogas. Despite the progress on the engineering of AD systems, several challenges exist for the economically and environmentally efficient way to recover carbon in the form of renewable biogas fuel. The complexity of the challenges poses constraints into the understanding of the factors associated to the scale-up of the AD operations. This study aims to review the critical factors of biogas plant project development

A PESTLE analysis of biofuels energy industry in Europe

Biofuels production is expected to be an intrinsic confluence to the renewable energy sector in the coming years under the European regulations for renewable energy. Key standpoints of the biofuels promotions are the reduction of national carbon emissions and rural deployment. Despite jubilant outlook of biofuels for sustainable development, research efforts still tend to link the biofuel industry and regional growth. The aim of this study is to explore and review the biofuels industry through a socio-political, techno-economic, legal and environmental (PESTLE) analysis approach, and discuss the interrelation between technological facets and sustainable deployment

Waste-to-Energy Technologies:Industrial Progress for Boosting the Circular Economy

Waste-to-energy (WtE) technologies enable us to recover energy from waste in the form of heat, electricity, or fuel. WtE technologies have the potential to confront the vast amount of waste produced and the increasing need for energy worldwide. This chapter describes the technological substratum of the WtE technologies and reviews the engineering aspects related to waste treatment challenges. It explores the progress, barriers, and opportunities of WtE technologies from an industrial perspective and highlights eco-sustainability and socioeconomic issues.</p

Influence of sheep manure addition on biogas potential and methanogenic communities during cow dung digestion under mesophilic conditions

The efficient treatment of animal slurries can support the bioenergy management and environmental protection; however, the low biogas yield and quality are the major constraints. The object of this paper is to investigate how the co-digestion of sheep manure and cow dung by not using inoculum influences the performance of the process and determine the methanogenic communities at the end of the experiment. Biochemical Methane Potential essays were conducted in mesophilic conditions in order to determine the biogas-methane potential. Enhanced biogas production was achieved from the mono-digestion of cow dung with 104.3 NmL biogas g−1 VS and the co-digestion of cow dung and sterilized sheep manure with a lower biogas yield of 89.0 NmL biogas g−1 V

Biogas combustion:An introductory briefing

Biogas derived from organic waste materials is a promising alternative and renewable gaseous fuel for internal combustion engines (ICE) and could substitute the conventional fossil fuels. The goals of this paper are to review the biogas fueling in engines and from this review, to identify current technological potential. An overview of physicochemical properties of biogas is presented. According to the analysis, biogas fueling in engines causes lower power output compared to other fuels but allows lower emissions (nitrogen oxides (NOx)). Thus, there are needs to investigate the exhaust emissions of biogas engines, the durability of the engines as well as the biogas dual fuel engines operation need to be investigated both experimentally and computationally. The literature review reveals that the published research on biogas combustion technology is not rich in number and requires further investigation