The Impact of Sewage Sludge-Sweet Sorghum Blends on the Biogas Production for Energy Purposes

The paper presents research on the impact of adding various forms sorghum to sewage sludge anaerobic digestion process. use liquid alone in biogas plants at wastewater treatment is inefficient due low total solid (dry matter) content this substrate. tests revealed that production methane and amounted 17.9% (105.4 Nm3∙Mg−1, VS—volatile solid). Therefore, other substrates should be blended with increase batch. Sorghum silage, pomace, juice were added proportions during research. As a result, improvement process, stabilization curve, as well yield observed. most obtained from mixture (5%) (664.8 Nm3∙Mg−1 VS 53.9%, respectively). Biogas based ranged 457.4 588.8 VS. For (7%) sludge, batch was acidified, only 281.5 Studies have shown intelligent blending an alternative raw material (compared traditional maize silage) allows for similar yields while maintaining stable