As an alternative to pre-stage hydrothermal treatment (HT) before anaerobic digestion (AD), inter-stage HT (i.e., AD-HT-AD) has been proposed increase biogas production and further reduce the residual organic matter. The goal of this study was evaluate effect at 155 °C on ultimate biodegradability AD extent sewage sludge mixture primary waste activated sludge). evaluated through biochemical met...

Sequential cropping in the Biogasdoneright™ (BDR™) system Italy has recently gained attention to combine food and renewable energy production a sustainable way, as well for carbon sequestration. However, little is known on potential expand practice other regions of Europe. In this paper, sequential crop calendars were developed different EU climate regions, biomethane anaerobic digestion (AD) c...

The amount of sargassum seaweed washed ashore on the beaches Africa, Brazil, Central America and Caribbean has increased to point where it become a social, environmental financial issue. This research evaluates potential for Sargassum spp. Mexican coast be used in production biomethane by estimating: a) stoichiometric methane (SMP), b) biochemical (BMP) c) biodegradability index (BI). use sigmo...

Korshinsk peashrub branches (Korpb) are agroforestry byproducts that accumulate in millions of tons per year and need to be reasonably utilized. To maximate the utilization value Korpb, an integrated process was proposed conducted by using Korpb as main substrate ingredient for Pleurotus tuoliensis cultivation also performing anaerobic digestion (AD) spent mushroom (SMS) biogas production. The ...

Anaerobic co-digestion (AcoD) is a widely employed technique to produce biogas from simultaneous digestion of various biomasses. However, the selection optimal proportions substrates in mixtures presents challenge. This research used mixture design investigate interactions between liquid fraction piglet manure (PM), cow (CWM), and starch wastewater (SWW). A modified Gompertz model was identify ...

This study was carried out to estimate the relevance of biological supplementation in improving economic efficiency anaerobic digestion (AD). Three kinds silages—maize, grass, and igniscum—were initially inoculated with digestate then supplemented one four vaccines containing different bacteria species (APD®, PPT®, JENOR®) or a yeast mold mixture (HAP®). In addition, each plant silage fermented...

This work evaluates the effect of hydrothermal carbonization (HTC) as a pretreatment and post-treatment technique to anaerobic digestion (AD) dairy sludge. HTC's on AD was evaluated based energy recovery, nutrient transformation, hydrochar utilization. The first approach executed by performing HTC under range temperatures before mesophilic AD. optimal temperature 210 °C for 30 min residence tim...

BACKGROUND Anaerobic digestion has been widely applied to treat the waste activated sludge from biological wastewater treatment and produce methane for biofuel, which has been one of the most efficient solutions to both energy crisis and environmental pollution challenges. Anaerobic digestion sludge contains highly complex microbial communities, which play crucial roles in sludge treatment. How...

Cow manure (CM) generation in large volumes has for long been considered a waste management challenge. However, the organic content of CM signals opportunities production value-added bioproducts such as volatile fatty acids (VFAs) through anaerobic digestion (AD). robust VFAs fermentation process requires effective methane formation inhibition and enhance recovery. In this study, thermal pretre...

Efficient pretreatment of lignocellulosic biomass is needed to reduce associated energy costs. Lignin-degrading bacteria ( Comamonas testosteroni, Agrobacterium sp. , Lysinibacillus sphaericus, and Paenibacillus sp.) were tested as potential pre-treatment methods for oil palm empty fruit bunches (OPEFB) enhance its methane yield during anaerobic digestion (AD). The lignocellulose fractions anal...