Synthetic effect of zero-valent iron and granular activated carbon on methane production from pentachlorophenol wastewater

2021 ◽  
Vol 237 ◽  
pp. 226-232
Author(s):  
Penghuan Cheng ◽  
Youxin Zhou ◽  
Yali Liu
Keyword(s):  
Activated Carbon ◽  
Methane Production ◽  
Granular Activated Carbon ◽  
Zero Valent Iron

scholarly journals Influence of Granular Activated Carbon on Anaerobic Co-Digestion of Sugar Beet Pulp and Distillers Grains with Solubles

Processes ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1226
Author(s):  
Elvira E. Ziganshina ◽  
Dmitry E. Belostotskiy ◽  
Svetlana S. Bulynina ◽  
Ayrat M. Ziganshin
Keyword(s):  
Activated Carbon ◽  
Sugar Beet ◽  
Production Rate ◽  
Methane Production ◽  
Granular Activated Carbon ◽  
Sugar Beet Pulp ◽  
Distillers Grains ◽  
Rrna Genes ◽  
Beet Pulp ◽  
Methane Production Rate

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.

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