ANAEROBIC BIOGAS PRODUCTION EFFICIENCY OF FOOD WASTE AT THE MEDIUM TEMPERATURE AND INTERMEDIATE TEMPERATURE ZONE

GONG Yabin; YAO Jiangang; TAN Jing

doi:10.13205/j.hjgc.202203020

Volume 40 Issue 3

Mar. 2022

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GONG Yabin, YAO Jiangang, TAN Jing. ANAEROBIC BIOGAS PRODUCTION EFFICIENCY OF FOOD WASTE AT THE MEDIUM TEMPERATURE AND INTERMEDIATE TEMPERATURE ZONE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 132-138. doi: 10.13205/j.hjgc.202203020

Citation:

GONG Yabin, YAO Jiangang, TAN Jing. ANAEROBIC BIOGAS PRODUCTION EFFICIENCY OF FOOD WASTE AT THE MEDIUM TEMPERATURE AND INTERMEDIATE TEMPERATURE ZONE[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(3): 132-138. doi: 10.13205/j.hjgc.202203020

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ANAEROBIC BIOGAS PRODUCTION EFFICIENCY OF FOOD WASTE AT THE MEDIUM TEMPERATURE AND INTERMEDIATE TEMPERATURE ZONE

doi: 10.13205/j.hjgc.202203020

Hangzhou Energy&Environmental Engineering Co., Ltd, Hangzhou 310020, China

Received Date: 2021-07-22
Available Online: 2022-07-07

Abstract

Abstract

This paper took the food waste as the research object, and conducted the continuous dynamic fermentation experiment to explore the biogas production and microbial distribution of the food waste in the transition zone between medium and high temperature. The results showed that under the same organic load, the biogas yield, methane concentration and key parameters of fermentation broth were significantly better than those of the fermentation system under the medium temperature (38℃) fermentation temperature, with higher biogas yield and more stable fermentation parameters. Through high-throughput microbial sequencing, it was found that there were significant differences in bacterial community structure and richness between 44℃ and 38℃ fermentation system, while there were no significant differences in archaea community structure and richness, which indicated that the main reason why the fermentation temperature of food waste at 44℃ was better than that at 38℃, was that more abundant fermentative bacteria promoted hydrolysis stage and acid production stage. That was conducive to the digestion and utilization of methane microorganism.
- food waste,
- anaerobic fermentation,
- intermediate temperature zone,
- microbial community

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References(25)

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