Life cycle assessment (LCA) and life cycle costing (LCC) are used to investigate integrated algae bioenergy production and nutrient management on small dairy farms. Four cases are considered: a reference land-application scenario (REF), anaerobic digestion with land-application of liquid digestate (AD), and anaerobic digestion with recycling of liquid digestate to either an open-pond algae cult...

Anaerobic digestion (AD) is an efficient and sustainable way of using organic carbon from residual biomass and organic waste for the production of renewable energy, while simultaneously recycling nutrients and cleaning up waste streams. The process relies on complex microbial communities comprised of diverse functional guilds; these communities have manifold metabolic pathways and interactions....

Anaerobic digestion (AD) has been applied over the years for the treatment of a wide variety of organic streams. The advantages of this process over other biological treatments relate mainly to the low cost of bioreactors operation, when compared to aerobic processes, since AD-based treatments offer a cost-effective solution for the treatment of high-strength organic wastes, through economic re...

Information on the dynamic evolution of humic acid (HA) from anaerobic digestate and potential HA serving as an effective agent for remedying heavy metals is rather scarce. This study monitored structure functional groups metal-binding abilities during chicken manure corn stover digestion (AD) processes. Higher increases in aromatic (41–66%) oxygen-containing (37–45%) were observed AD stover, r...

This study evaluated the feasibility of obtaining methane in anaerobic digestion (AD) from the waste products generated by the processing of fruit and vegetables. During the first phase (0-55 d) of the AD using sludge from fruit and vegetable processing, an average value of 244±88 L kg(-1) dry matter d(-1)of biogas production was obtained, and methane content reached 65% of the biogas. Co-diges...

Anaerobic digestion (AD) is an effective biological process to recover energy from organic solid wastes. There a growing interest in utilization of renewable or sustainable bioenergy sources as future alternatives fossil fuels. However, low hydrolysis rate, high heterogeneity plant cell-wall structure lignocellulose, instability at loading and metabolic activity microbes limit the practical app...

One of the best methods for turning different types biomass into clean energy is anaerobic digestion (AD). Organic and inorganic additives may be employed in AD process to increase biogas output. It has been demonstrated that additives, such as micronutrients, can improve efficiency producing reactors. These trace items introduced powders. The use metal oxides engineering environmental research...

Digester acclimatization can improve the efficiency of anaerobic digestion (AD), a potentially sustainable process for generating biogas from biological decomposition organic byproducts biodiesel production. This study examined impact rate on production and conversion in laboratory digesters using inocula wastewater treatment plant digester an agro-industrial waste digester. The results showed ...

Bioelectrochemical systems are widely used in waste utilization processes. Among them, anaerobic digestion (AD) and microbial electrolytic cell coupling (MEC) cost-effective efficient waste-to-energy technologies. In this study, the proposal was made that a carbon felt composite electrode plate be applied to an AD-MEC reactor. The control experiment conducted using AD reactor (without external ...