Adding activated carbon to the system with added zero-valent iron further improves anaerobic digestion performance by alleviating ammonia inhibition and promoting DIET

2021 ◽  
pp. 106616
Author(s):  
Shuang Zhang ◽  
Xinxin Ma ◽  
Dong Xie ◽  
Weijie Guan ◽  
Min Yang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Anaerobic Digestion ◽  
Zero Valent Iron ◽  
Ammonia Inhibition

scholarly journals A review on strategies to optimize metabolic stages of anaerobic digestion of municipal solid wastes towards enhanced resources recovery

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Edwin N. Richard ◽  
Askwar Hilonga ◽  
Revocatus L. Machunda ◽  
Karoli N. Njau
Keyword(s):  
Fatty Acids ◽  
Trace Elements ◽  
Activated Carbon ◽  
Anaerobic Digestion ◽  
Volatile Fatty Acids ◽  
Solid Wastes ◽  
Municipal Solid Wastes ◽  
Ammonia Inhibition ◽  
Moisture Contents ◽  
Pre Treatment

AbstractRecently, there are increased efforts by municipals and researchers to investigate the potential of utilizing municipal solid wastes (MSW) for resources recovery. In many parts of developing countries, MSW is mostly collected for disposal with little emphasis on resources recovery. However, the MSW has high organic and moisture contents, and are suitable substrates for anaerobic digestion (AD) process to recover biogas for energy and digestate which can be used as fertilizers or for soil amendments. Resources recovery from the AD process consists of four metabolic stages; hydrolysis, acidogenesis, acetogenesis, and methanogenesis. These metabolic stages can be affected by several factors such as the nature of substrates, accumulation of volatile fatty acids, and ammonia inhibition. In this review, different optimization strategies towards resources recoveries such as pre-treatment, co-digestion, trace elements supplementation, optimization of key parameters and the use of granular activated carbon are discussed. The review reveals that the currently employed optimization strategies fall short in several ways and proposes the need for improvements.

Effect of zero-valent iron combined with carbon-based materials on the mitigation of ammonia inhibition during anaerobic digestion

2020 ◽  
Vol 311 ◽  
pp. 123503 ◽  
Author(s):  
Jibao Liu ◽  
Jiaxi Zheng ◽  
Yutong Niu ◽  
Zhuang Zuo ◽  
Junya Zhang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Zero Valent Iron ◽  
Ammonia Inhibition ◽  
Carbon Based

Relieving ammonia inhibition by zero-valent iron (ZVI) dosing to enhance methanogenesis in the high solid anaerobic digestion of swine manure

2020 ◽  
Vol 118 ◽  
pp. 452-462
Author(s):  
Xiaoshan Meng ◽  
Qianwen Sui ◽  
Jibao Liu ◽  
Dawei Yu ◽  
Yawei Wang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Swine Manure ◽  
Zero Valent Iron ◽  
Ammonia Inhibition ◽  
High Solid
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