Comparison of thermophilic bacteria and alkyl polyglucose pretreatment on two-stage anaerobic digestion with waste sludge: Biogas production potential and substrate metabolism process

2018 ◽  
Vol 249 ◽  
pp. 694-703 ◽  
Author(s):  
Liang Guo ◽  
Zengshuai Zhang ◽  
Mengchun Gao ◽  
Zonglian She ◽  
Yangguo Zhao ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Thermophilic Bacteria ◽  
Biogas Production ◽  
Production Potential ◽  
Two Stage ◽  
Substrate Metabolism ◽  
Waste Sludge

scholarly journals A Review on Anaerobic Co-Digestion with a Focus on the Microbial Populations and the Effect of Multi-Stage Digester Configuration

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1106 ◽  
Author(s):  
Anahita Rabii ◽  
Saad Aldin ◽  
Yaser Dahman ◽  
Elsayed Elbeshbishy
Keyword(s):  
Anaerobic Digestion ◽  
Microbial Population ◽  
System Stability ◽  
Microbial Consortia ◽  
Microbial Populations ◽  
Stage Versus ◽  
Two Stage ◽  
Waste Sludge ◽  
Multi Stage ◽  
Mode A

Recent studies have shown that anaerobic co-digestion (AnCoD) is superior to conventional anaerobic digestion (AD). The benefits of enhanced bioenergy production and solids reduction using co-substrates have attracted researchers to study the co-digestion technology and to better understand the effect of multi substrates on digester performance. This review will discuss the results of such studies with the main focus on: (1) generally the advantages of co-digestion over mono-digestion in terms of system stability, bioenergy, and solids reduction; (2) microbial consortia diversity and their synergistic impact on biogas improvement; (3) the effect of digester mode, i.e., multi-stage versus single stage digestion on AnCoD. It is essential to note that the studies reported improvement in the synergy and diverse microbial consortia when using co-digestion technologies, in addition to higher biomethane yield when using two-stage mode. A good example would be the co-digestion of biodiesel waste and glycerin with municipal waste sludge in a two-stage reactor resulting in 100% increase of biogas and 120% increase in the methane content of the produced biogas with microbial population dominated by Methanosaeta and Methanomicrobium.

Enhancement of Biogas Production from Co-Digestion of Industrial Solid Pineapple Wastes by Two-Stage Anaerobic Digestion Systems

2021 ◽  
Author(s):  
Napisa Pattharaprachayakul ◽  
Jintana Jitpupakdee ◽  
Worakrit Suvajittanont ◽  
Dudsadee Uttapap ◽  
Vilai Rungsardthong
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Two Stage

Profile of hydrolases and biogas production during two-stage mesophilic anaerobic digestion of solid potato waste

2005 ◽  
Vol 40 (9) ◽  
pp. 2945-2952 ◽  
Author(s):  
W. Parawira ◽  
M. Murto ◽  
J.S. Read ◽  
B. Mattiasson
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Two Stage ◽  
Potato Waste

Anaerobic digestion of elephant grass hydrolysate: Biogas production, substrate metabolism and outlet effluent treatment

2019 ◽  
Vol 283 ◽  
pp. 191-197 ◽  
Author(s):  
Chao Huang ◽  
Lian Xiong ◽  
Hai-Jun Guo ◽  
Hai-Long Li ◽  
Can Wang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Effluent Treatment ◽  
Elephant Grass ◽  
Substrate Metabolism

scholarly journals Effect of Mechanical Pre-Treatment of the Agricultural Substrates on Yield of Biogas and Kinetics of Anaerobic Digestion

2018 ◽  
Vol 10 (10) ◽  
pp. 3669 ◽  
Author(s):  
Józef Szlachta ◽  
Hubert Prask ◽  
Małgorzata Fugol ◽  
Adam Luberański
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Gompertz Model ◽  
Model Parameters ◽  
Production Potential ◽  
Pre Treatment ◽  
Sorghum Silage ◽  
Kinetics Of ◽  
Degree Of Fragmentation ◽  
Modified Gompertz Model

The effect of mechanical pre-treatment of nine different agricultural substrates minced to particle sizes of 1.5 mm, 5 mm and 10 mm on biogas and methane yields and fermentation kinetics was investigated. The results showed, that for five of the nine tested substrates (grass, Progas rye, Palazzo rye, tall wheatgrass, beet), a higher biogas production was obtained for the degree of fragmentation of 10 mm compared to fragmentation of 5 mm and 1.5 mm. For fragmentation of 5 mm, the highest biogas production was achieved for sorghum silage, Atletico maize and Cannavaro maize—649.80, 735.59 and 671.83 Nm3/Mg VS, respectively. However, for the degree of fragmentation of 1.5 mm, the highest biogas production (510.43 Nm3/Mg volatile solid (VS)) was obtained with Topinambur silage. The modified Gompertz model fitted well the kinetics of anaerobic digestion of substrates and show a significant dependence of the model parameters Hmax (biogas production potential) and Rmax (maximum rate of biogas production) on the degree of substrate fragmentation.

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