Swine manure biogas production improvement using pre-treatment strategies: Lab-scale studies and full-scale application. (September 2021)

• Record Type: Journal Article
• Authors: Tápparo, Deisi Cristina; Cândido, Daniela; Steinmetz, Ricardo Luis Radis; Etzkorn, Christian; do Amaral, André Cestonaro; Antes, Fabiane Goldschmidt; Kunz, Airton
• Is Part Of: Bioresource technology reports. Volume 15(2021)
• Publication Date: 2021-09
• Subjects: Solid-liquid separation -- Biogas improvement -- Swine production system -- Biogas plant; Biomass energy -- Periodicals; Biotransformation (Metabolism) -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Waste products as fuel -- Periodicals; Waste products as fuel; Organic wastes; Factory and trade waste; Biotransformation (Metabolism); Biomass energy; Agricultural wastes; Periodicals; Electronic journals; 662.88
• DOI: 10.1016/j.biteb.2021.100716
• Languages: English
• ISSNs: 2589-014X

Abstract

Abstract: The paper deals a case study of solid-liquid separation (SLS) approaches for swine manure biogas recovery in a system configured to treat solid fraction on Continuous Stirred Tank Reactor (CSTR) and liquid fraction on Covered lagoon biodigester (CLB) in a large scale. At the same time, scale down reactors on laboratory scale were operated under same conditions. Biogas productivity of full-scale CSTR showed an average of 0.65 ± 0.23 NLbiogas L −1 reactor d −1, while CLB was around 0.18 ± 0.05 NLbiogas L −1 reactor d −1 . The results of lab-scale can predict digestion capability and methane recovery for full-scale system. Economy in biogas plant construction and operation, biogas generation constantly and digestate treatment system implementation are the mainly benefits to use SLS followed different reactor configurations. Biological desulfurization process was dependent of biogas retention time. By the way, operational improvements made on large scale have allowed an advance in the productivity and biogas quality. Graphical abstract: Unlabelled Image Highlights: Swine manure fractions present different characteristics and biogas yield. Solid-liquid separation is a promising pre-treatment to improve biogas production. A combined biodigesters configuration can improve biogas production from swine manure. The use of SLS practices can make the digestate treatment easy.