Effects of Thermal Treatment of Waste Activated Sludge and Trace Metals on the High-rate Thermophilic Anaerobic Digestion of Sewage Sludge

Assessment of the DGT technique in digestate to fraction twelve trace elements

“…Bourven et al [8] demonstrated a link between DGT-labile Cd concentrations and biogas 53 production as well as enzymatic activities during whey anaerobic digestion. However, DGT use 54 in digestate is only emerging and, to our knowledge, only Takashima et al [9] has used the DGT 55 4 technique to measure labile Co and Ni species in a digested sewage sludge filtrate. Currently, no 56 methodological development has been performed to adapt this technique to the digestate matrix.…”

Strategies to enhance anaerobic digestion of biomass waste to produce renewable biofuel

“…Various studies have been conducted to enhance yield and quality (methane content) of biogas produced from AD of sludge. For example, thermal pretreatment has been used to enhance sludge digestibility and dewaterability (Takashima et al, 2018). Co-digestion of sludge with other organic wastes such as food wastes or paper pulp rejects resulted in higher methane yield and greater chemical oxygen demand (COD) removal (Xie et al, 2017).…”