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Influence of Granular Activated Carbon on Anaerobic Co-Digestion of Sugar Beet Pulp and Distillers Grains with Solubles
Content Provider | MDPI |
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Author | Ziganshina, Elvira E. Belostotskiy, Dmitry E. Bulynina, Svetlana S. Ziganshin, Ayrat M. |
Copyright Year | 2020 |
Description | Anaerobic digestion is an important technology to receive energy from various types of biomass. In this work, the impact of granular activated carbon (GAC) on the mesophilic anaerobic co-digestion of sugar beet pulp and distillers grains was investigated. After a short period, anaerobic reactors began to produce biomethane and were ready for completion within 19–24 days. The addition of GAC to reactors (5–10 g L−1) significantly enhanced the methane production rate and consumption of produced volatile fatty acids. Thus, the maximum methane production rate increased by 13.7% in the presence of GAC (5 g L−1). Bacterial and archaeal community structure and dynamics were investigated, based on 16S rRNA genes analysis. The abundant classes of bacteria in GAC-free and GAC-containing reactors were Clostridia, Bacteroidia, Actinobacteria, and Synergistia. Methanogenic communities were mainly represented by the genera Methanosarcina, Methanoculleus, Methanothrix, and Methanomassiliicoccus in GAC-free and GAC-containing reactors. Our results indicate that the addition of granular activated carbon at appropriate dosages has a positive effect on anaerobic co-digestion of by-products of the processing of sugar beet and ethanol distillation process. |
Starting Page | 1226 |
e-ISSN | 22279717 |
DOI | 10.3390/pr8101226 |
Journal | Processes |
Issue Number | 10 |
Volume Number | 8 |
Language | English |
Publisher | MDPI |
Publisher Date | 2020-10-01 |
Access Restriction | Open |
Subject Keyword | Processes Paper and Wood Water Science and Technology Anaerobic Co-digestion Biomethane Sugar Beet Pulp Distillers Grains Granular Activated Carbon 16s Rrna Gene |
Content Type | Text |
Resource Type | Article |