A critical review of conventional and emerging methods for improving process stability in thermophilic anaerobic digestion

被引：94

作者：

Ryue, John ^{[1
]}

Lin, Long ^{[1
]}

Kakar, Farokh Laqa ^{[2
]}

Elbeshbishy, Elsayed ^{[2
]}

Al-Mamun, Abdullah ^{[3
]}

Dhar, Bipro Ranjan ^{[1
]}

机构：

[1] Univ Alberta, Civil & Environm Engn, 116 St NW, Edmonton, AB T6G 1H9, Canada

[2] Ryerson Univ, Civil Engn, 350 Victoria St, Toronto, ON M5B 2K3, Canada

[3] Sultan Qaboos Univ, Civil & Architectural Engn, Muscat 123, Oman

来源：

ENERGY FOR SUSTAINABLE DEVELOPMENT | 2020年 / 54卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Thermophilic anaerobic digestion; Process stability; Acidification; Ammonia inhibition; INTERSPECIES ELECTRON-TRANSFER; WASTE ACTIVATED-SLUDGE; VOLATILE FATTY-ACIDS; MICROBIAL COMMUNITY DYNAMICS; MUNICIPAL SOLID-WASTE; ORGANIC LOADING RATE; DRY CO-DIGESTION; FOOD WASTE; AMMONIA INHIBITION; METHANE PRODUCTION;

D O I：

10.1016/j.esd.2019.11.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Anaerobic digestion has received significant attention in recent years due to dual benefits of waste diversion from landfill and bioenergy recovery. Among various temperature regimes, digesters operated under thermophilic (50-70 degrees C) condition has potential to provide several advantages over mesophilic (30-45 degrees C) and psychrophilic (<20 degrees C) conditions, which include faster degradation of organics and higher energy recovery. However, the operation of thermophilic digesters requires closer monitoring and control due to an additional risk of ammonia inhibition and irreversible acidification through the accumulation of volatile fatty acids. Conventional strategies to alleviate instabilities in thermophilic anaerobic digestion process have been focused primarily on the development of robust microbiome and co-digestion of complementary substrates. On the other hand, emerging strategies include the integration of digesters with microbial electrochemical systems and amendment of conductive additives. This review provides a critical overview of these strategies and summarizes research gaps to guide researchers and practitioners in the future research. (C) 2019 International Energy Initiative. Published by Elsevier Inc. All rights reserved.

引用

页码：72 / 84

页数：13

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