The objective of the work was to assess the effect of mild alkaline pretreatment on the anaerobic biodegradability of tomato processing waste (TPW). Experiments were carried out in duplicate BMP bottles using a pretreatment contact time of 4 and 24 h and a 1% and 5% NaOH dosage. The cumulative methane production during a 30 d period was recorded and modelled. The alkaline pretreatment did not s...

Methanogenesis has recently been shown to fuel anaerobic oxidation of methane (AOM) within the sulfate-reducing zone marine sediments, coining term “cryptic cycle”. Here we present research on relationship between methanogenesis and AOM in a shallow hypersaline pool (∼130 PSU) southern California coastal wetland. Sediment (top 20 cm) was subjected geochemical analyses, in-vitro slurry experimen...

In this study we aimed to understand the impact of medium–low temperatures on two main steps that usually comprise electromethanogenesis (EM) process: electrothrophic hydrogenesis and hydrogenothrophic methanogenesis. Results revealed pure CO2 could effectively be converted into a high-purity biogas (∼90:10 CH4/CO2) at 30 °C. However, when temperature was reduced 15 °C, methane richness greatly...