Enhanced solubilization of solid organics and methane production by anaerobic digestion of swine manure under nano-bubble water addition

2020 ◽  
Vol 299 ◽  
pp. 122512 ◽  
Author(s):  
Yujie Fan ◽  
Zhongfang Lei ◽  
Zitao Guo ◽  
Weiwei Huang ◽  
Di Wang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Swine Manure ◽  
Water Addition

scholarly journals Use of Inoculum, Water and Percolate as Strategy to Avoid Inhibition on Dry-Batch Anaerobic Digestion of Organic Fraction of Municipal Solid Waste

2021 ◽  
Author(s):  
Ildefonso Rocamora ◽  
Stuart T. Wagland ◽  
Raffaella Villa ◽  
Edmon W. Simpson ◽  
Oliver Fernández ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Methane Production ◽  
Kinetic Modelling ◽  
Methanogenic Archaea ◽  
Methane Formation ◽  
Organic Fraction ◽  
Water Addition ◽  
The Impact

AbstractThe impact of inoculum to substrate ratio (I:S) and the addition of water and percolate on stopping inhibition in dry batch anaerobic digestion of organic fraction municipal solid waste (OFMSW) was investigated. In particular, ratios of I:S from 1:2 to 1:16 and total solid contents from 40 to 25% with water and percolate addition were analysed. Tested I:S did not avoid acidification of the anaerobic digesters (ADs), and the highest biogas and methane production (16.2 and 1.7 L/kg VSadded, respectively) was achieved with the 1:4 ratio. Water addition was also insufficient to avoid acidification, and while biogas increased as TS decreased, 40.9 L/kg VSadded for 25% TS, methane yield remained low at 1.2 L/kg VSadded due to the inhibition of methanogenic archaea. Percolate addition proved a suitable strategy to increase pH buffering, with an increased methane production of 199.4 L/kg VSadded at similar TS ranges (27%). Impact on kinetics of methane formation was assessed by kinetic modelling with logistic model identified as the better fit for most of the ADs. Shorter lag phases were observed as TS were reduced, regardless of the acidification, as mass transfer limitations were reduced at the beginning of the batch, but an increase was observed when percolate was used instead of water. Increases of the maximum methane rate (Rmax) was also achieved with TS reduction, but only when acidification was avoided. This study has highlighted the need to profile percolate composition during batch digestion in order to balance recirculation of nutrients, microbial communities and toxic compounds. Graphic Abstract

scholarly journals Effect of Australian zeolite on methane production and ammonium removal during anaerobic digestion of swine manure

2018 ◽  
Vol 6 (1) ◽  
pp. 1233-1241 ◽  
Author(s):  
D. Thushari N. Wijesinghe ◽  
Kithsiri B. Dassanayake ◽  
Peter J. Scales ◽  
Sven G. Sommer ◽  
Deli Chen
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Swine Manure ◽  
Ammonium Removal

Enhancement of biogas and methane production by anaerobic digestion of swine manure with addition of microorganisms isolated from sewage sludge

2016 ◽  
Vol 104 ◽  
pp. 233-239 ◽  
Author(s):  
Jayna Pessuto ◽  
Bianca Santinon Scopel ◽  
Daniele Perondi ◽  
Marcelo Godinho ◽  
Aline Dettmer
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Methane Production ◽  
Swine Manure

Zeolite and swine inoculum effect on poultry manure biomethanation

2013 ◽  
Vol 27 (2) ◽  
pp. 169-173 ◽  
Author(s):  
P.G. Kougias ◽  
I.A. Fotidis ◽  
I.D. Zaganas ◽  
T.A. Kotsopoulos ◽  
G.G. Martzopoulos
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Natural Zeolite ◽  
Swine Manure ◽  
Poultry Manure ◽  
Ammonia Toxicity ◽  
Poultry Waste ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Inoculum Effect

Abstract Poultry manure is an ammonia-rich substrate that inhibits methanogenesis, causing severe problems to the anaerobic digestion process. In this study, the effect of different natural zeolite concentrations on the mesophilic anaerobic digestion of poultry waste inoculated with well-digested swine manure was investigated. A significant increase in methane production was observed in treatments where zeolite was added, compared to the treatment without zeolite.Methane production in the treatment with 10 g dm-3 of natural zeolite was found to be 109.75% higher compared to the treatment without zeolite addition. The results appear to be influenced by the addition of zeolite, which reduces ammonia toxicity in anaerobic digestion and by the ammonia-tolerant swine inoculum.

Improved methane production from anaerobic digestion of liquid and raw fractions of swine manure effluent using activated carbon

2020 ◽  
Vol 38 ◽  
pp. 101576 ◽  
Author(s):  
Ruby M. Romero ◽  
Edgardo I. Valenzuela ◽  
Francisco J. Cervantes ◽  
Refugio B. Garcia-Reyes ◽  
Denisse Serrano ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Anaerobic Digestion ◽  
Methane Production ◽  
Swine Manure
Sign in / Sign up

Export Citation Format

Share Document