Photobiostimulation of anaerobic digestion by laser irradiation and photocatalytic effects of trace metals and nanomaterials on biogas production

2020 ◽  
Vol 45 (1) ◽  
pp. 141-150 ◽  
Author(s):  
Essam M. Abdelsalam ◽  
Ahmed El‐Hussein ◽  
Mohamed Samer
Keyword(s):  
Anaerobic Digestion ◽  
Trace Metals ◽  
Laser Irradiation ◽  
Biogas Production

Effects of Laser Irradiation and Ni Nanoparticles on Biogas Production from Anaerobic Digestion of Slurry

2018 ◽  
Vol 10 (11) ◽  
pp. 3251-3262 ◽  
Author(s):  
E. M. Abdelsalam ◽  
M. Samer ◽  
Y. A. Attia ◽  
M. A. Abdel-Hadi ◽  
H. E. Hassan ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Laser Irradiation ◽  
Biogas Production ◽  
Ni Nanoparticles

scholarly journals Supplementation of Carbon-Based Conductive Materials and Trace Metals to Improve Biogas Production from Apple Pomace

2021 ◽  
Vol 13 (17) ◽  
pp. 9488
Author(s):  
Addam Claes ◽  
Lucy Melchi ◽  
Sibel Uludag-Demirer ◽  
Goksel N. Demirer
Keyword(s):  
Anaerobic Digestion ◽  
Trace Metals ◽  
Apple Juice ◽  
Biogas Production ◽  
High Water ◽  
Apple Pomace ◽  
Viable Option ◽  
Conductive Materials ◽  
Environmental Challenge ◽  
Carbon Based

Due to its high water and organic contents, management of apple pomace (AP) poses several waste management challenges on the apple juice and cider producing industries. Bioconversion of AP into biogas provides an excellent possibility to reduce the environmental challenge faced in the management of AP waste along with producing renewable energy in the form of methane. This study investigated the effect of carbon-based conductive materials (biochar and graphene) and trace metals supplementation to improve biogas production from AP. The results indicate that supplementation of biochar, trace metals, and graphene significantly improves the biogas production from AP. Trace metal and biochar supplementation at a COD concentration of 6000 mg/L resulted in 7.2% and 13.3% increases in the biogas production, respectively. When trace metals and biochar were supplemented together, the biogas production increased by 22.7%. This synergistic effect was also observed at the COD concentration of 12,000 mg/L. The improvement in the biogas formation was significantly higher for graphene supplemented reactors (27.8%). Moreover, biochar and trace metals supplementation also led to 19.6% and 23.0% increases in the methane yield relative to the reactor fed only with AP, respectively. These results suggest anaerobic digestion supplemented with carbon-based conductive materials and trace metals is a viable option for valorizing apple pomace.

Environmental impacts concerning the addition of trace metals in the process of biogas production from anaerobic digestion of slurry

2020 ◽  
Vol 243 ◽  
pp. 118593 ◽  
Author(s):  
O. Hijazi ◽  
E. Abdelsalam ◽  
M. Samer ◽  
B.M.A. Amer ◽  
I.H. Yacoub ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Trace Metals ◽  
Environmental Impacts ◽  
Biogas Production

Biogas Production from Community Waste to Optimise the Substrate for Anaerobic Digestion

2018 ◽  
Vol 12 (7) ◽  
pp. 580
Author(s):  
Antony P. Pallan ◽  
S. Antony Raja ◽  
C. G. Varma ◽  
Deepak Mathew D.K. ◽  
Anil K. S. ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production

Anaerobic Digestion of Banana Wastes for Biogas Production

2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Damaris Kerubo Oyaro ◽  
Zablon Isaboke Oonge ◽  
Patts Meshack Odira
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Banana Wastes

Simulation of the Impact of Higher Ammonia Recycle Loads Caused by Upgrading Anaerobic Sludge Digesters

2005 ◽  
Vol 40 (4) ◽  
pp. 491-499 ◽  
Author(s):  
Jeremy T. Kraemer ◽  
David M. Bagley
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Treatment Plant ◽  
Anaerobic Sludge ◽  
Content Increase ◽  
Limited Information ◽  
Dynamic Simulations ◽  
Treatment Train ◽  
Temperature Liquid ◽  
The Impact

Abstract Upgrading conventional single-stage mesophilic anaerobic digestion to an advanced digestion technology can increase sludge stability, reduce pathogen content, increase biogas production, and also increase ammonia concentrations recycled back to the liquid treatment train. Limited information is available to assess whether the higher ammonia recycle loads from an anaerobic sludge digestion upgrade would lead to higher discharge effluent ammonia concentrations. Biowin, a commercially available wastewater treatment plant simulation package, was used to predict the effects of anaerobic digestion upgrades on the liquid train performance, especially effluent ammonia concentrations. A factorial analysis indicated that the influent total Kjeldahl nitrogen (TKN) and influent alkalinity each had a 50-fold larger influence on the effluent NH3 concentration than either the ambient temperature, liquid train SRT or anaerobic digestion efficiency. Dynamic simulations indicated that the diurnal variation in effluent NH3 concentration was 9 times higher than the increase due to higher digester VSR. Higher recycle NH3 loads caused by upgrades to advanced digestion techniques can likely be adequately managed by scheduling dewatering to coincide with periods of low influent TKN load and ensuring sufficient alkalinity for nitrification.

Biogas Production Using Anaerobic Digestion of Industrial Waste

2016 ◽  
Vol 832 ◽  
pp. 55-62
Author(s):  
Ján Gaduš ◽  
Tomáš Giertl ◽  
Viera Kažimírová
Keyword(s):  
Anaerobic Digestion ◽  
Industrial Waste ◽  
Large Scale ◽  
Biogas Production ◽  
Biogas Plant ◽  
Parallel Operation ◽  
Paper Production ◽  
Biochemical Conversion ◽  
Mixed Biomass ◽  
Economic Balance

In the paper experiments and theory of biogas production using industrial waste from paper production as a co-substrate are described. The main aim of the experiments was to evaluate the sensitivity and applicability of the biochemical conversion using the anaerobic digestion of the mixed biomass in the pilot fermentor (5 m3), where the mesophillic temperature was maintained. It was in parallel operation with a large scale fermentor (100 m3). The research was carried out at the biogas plant in Kolíňany, which is a demonstration facility of the Slovak University of Agriculture in Nitra. The experiments proved that the waste arising from the paper production can be used in case of its appropriate dosing as an input substrate for biogas production, and thus it can improve the economic balance of the biogas plant.

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