Publications by authors named "Marta Bis"
Waste Manag
November 2021
Article Synopsis
- The study explores a method for using brewery spent grain (BSG) in combination with sewage sludge (SS) for better anaerobic digestion (AD) results.
- The BSG was pre-treated via hydrodynamic cavitation and paired with two different carriers, showing that the combination with municipal pre-settled wastewater (MPW) significantly increased biogas and methane production compared to using just sewage sludge alone.
- In contrast, the combination with mature landfill leachate (MLL) did not yield the same benefits, leading to the conclusion that using cavitated BSG with MPW is optimal for large-scale application.
Article Synopsis
- The study investigates how introducing dried brewery spent grain (BSG) affects biogas production when mixed with sewage sludge (SS) in anaerobic digestion processes.
- Even though the addition of BSG did not significantly change the overall biogas yields compared to SS digested alone, it did lead to energy enhancements, particularly at longer hydraulic retention times (HRTs) of 20 days.
- The findings suggest that using BSG in co-digestion could be a cost-effective approach to improve energy efficiency in wastewater treatment and handle waste from breweries sustainably.
Article Synopsis
- The study focused on co-digesting sewage sludge with hydrodynamically cavitated landfill leachate to assess efficiency in organics removal, biogas production, and digestate quality.
- A 5% v/v dose of treated leachate was tested over a 20-day hydraulic retention time, which resulted in improved biogas production and digestate quality.
- Analysis showed no new toxic compounds were created during co-digestion, suggesting this method is a safe and economical way to use mature landfill leachate.
