Statistical optimization of methane production from brewery spent grain: Interaction effects of temperature and substrate concentration

2021 ◽  
Vol 288 ◽  
pp. 112363
Author(s):  
Marina Mauro Gomes ◽  
Isabel Kimiko Sakamoto ◽  
Camila Abreu B. Silva Rabelo ◽  
Edson Luiz Silva ◽  
Maria Bernadete Amâncio Varesche
Keyword(s):  
Methane Production ◽  
Substrate Concentration ◽  
Interaction Effects ◽  
Statistical Optimization ◽  
Grain Interaction ◽  
Spent Grain ◽  
Effects Of Temperature

scholarly journals The effect of agitation speed, enzyme loading and substrate concentration on enzymatic hydrolysis of cellulose from brewer’s spent grain

Cellulose ◽  
2008 ◽  
Vol 15 (5) ◽  
pp. 711-721 ◽  
Author(s):  
Solange I. Mussatto ◽  
Giuliano Dragone ◽  
Marcela Fernandes ◽  
Adriane M. F. Milagres ◽  
Inês C. Roberto
Keyword(s):  
Enzymatic Hydrolysis ◽  
Substrate Concentration ◽  
Agitation Speed ◽  
Enzyme Loading ◽  
Brewer’S Spent Grain ◽  
Enzymatic Hydrolysis Of Cellulose ◽  
Hydrolysis Of Cellulose ◽  
Spent Grain ◽  
Hydrolysis Of

scholarly journals Hydrogen and Methane Production Under Conditions of Anaerobic Digestion of Key-Lime and Cabbage Wastes

2019 ◽  
Vol 39 (3) ◽  
pp. 243 ◽  
Author(s):  
Gaweł Sołowski ◽  
Izabela Konkol ◽  
Bartosz Hrycak ◽  
Dariusz Czylkowski
Keyword(s):  
Anaerobic Digestion ◽  
Hydrogen Production ◽  
Methane Production ◽  
Substrate Concentration ◽  
Suspended Solids ◽  
Batch Process ◽  
Citrus Aurantifolia ◽  
Total Solids ◽  
Neutral Ph ◽  
Key Lime

In this article, the results of key lime fruit (Citrus aurantifolia) wastes and cabbage (Brassica L.) wastes anaerobic digestion are presented. Anaerobic digestion of the wastes was performed in batch process, neutral pH (key-lime 7.47 and cabbage 7.67) and substrate concentration of Volatile Suspended Solids (VSS) 10 gVSS/L. One of the aims of this research was to check the availability of these substrates to be the source of methane and hydrogen. Key lime wastes produced 32 times more methane than raw cabbage. However, hydrogen production from cabbage was 149 times higher than key lime. The percentage of methane production in cabbage was up to 81% and in key lime was up to 75%. This research showed from the substrates comparison that efficient hydrogen production is less dependent on low pKa, pH than on total solids of the substrates.

scholarly journals Effects of Temperature and Light on Methane Production of Widespread Marine Phytoplankton

2020 ◽  
Vol 125 (9) ◽  
Author(s):  
T. Klintzsch ◽  
G. Langer ◽  
A. Wieland ◽  
H. Geisinger ◽  
K. Lenhart ◽  
...  
Keyword(s):  
Methane Production ◽  
Marine Phytoplankton ◽  
Effects Of Temperature

scholarly journals Performance Evaluation of Mesophilic Anaerobic Digestion of Chicken Manure with Algal Digestate

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1829 ◽  
Author(s):  
Na Duan ◽  
Xia Ran ◽  
Ruirui Li ◽  
Panagiotis Kougias ◽  
Yuanhui Zhang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Substrate Concentration ◽  
Tap Water ◽  
Total Solid ◽  
Ammonia Concentration ◽  
Chicken Manure ◽  
Resource Saving ◽  
Kinetics Parameters ◽  
Total Ammonia

Dilution is considered to be a fast and easily applicable pretreatment for anaerobic digestion (AD) of chicken manure (CM), however, dilution with fresh water is uneconomical because of the water consumption. The present investigation was targeted at evaluating the feasibility and process performance of AD of CM diluted with algal digestate water (AW) for methane production to replace tap water (TW). Moreover, the kinetics parameters and mass flow of the AD process were also comparatively analyzed. The highest methane production of diluted CM (104.39 mL/g volatile solid (VS)) was achieved with AW under a substrate concentration of 8% total solid (TS). The result was markedly higher in comparison with the group with TW (79.54–93.82 mL/gVS). Apart from the methane production, considering its energy and resource saving, nearly 20% of TW replaced by AW, it was promising substitution to use AW for TW to dilute CM. However, the process was susceptible to substrate concentration, inoculum, as well as total ammonia and free ammonia concentration.

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