Start-up of Anaerobic Digestion of Source-Sorted Organic Municipal Solid Waste in the Absence of Classical Inocula

2007 ◽  
Vol 41 (19) ◽  
pp. 6808-6814 ◽  
Author(s):  
Rania Maroun ◽  
Mutasem El Fadel
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Start Up

scholarly journals The Start-up of Thermophilic Anaerobic Digestion of Municipal Solid Waste

2016 ◽  
Vol 95 (8) ◽  
pp. 645-647 ◽  
Author(s):  
Subaru NAKAJIMA ◽  
Naoto SHIMIZU ◽  
Hiroyuki ISHIWATA ◽  
Tadahiko ITO
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Thermophilic Anaerobic Digestion ◽  
Start Up

Microbial ecology of the leach bed anaerobic digestion of unsorted municipal solid waste

2000 ◽  
Vol 41 (3) ◽  
pp. 9-16 ◽  
Author(s):  
P. Silvey ◽  
P.C. Pullammanappallil ◽  
L. Blackall ◽  
P. Nichols
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Microbial Ecology ◽  
Solid Waste ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Phospholipid Fatty Acid ◽  
Ether Lipid ◽  
Bacterial Biomass ◽  
Start Up ◽  
Gradient Gel Electrophoresis

The microbial ecology of the sequential, leach-bed, mesophilic anaerobic digestion of unsorted, coarse municipal solid waste (MSW) was examined over 80 days. The methane yield was approximately 75% of the ultimate biochemical methane potential (BMP) of the waste loaded into the digesters. The operational strategy involved a sequence of two digesters containing fresh and anaerobically stabilised MSW respectively. Cell wall phospholipid fatty acid (PLFA) and ether lipid (PLEL) analysis was used to monitor changes in microbial biomass. Both Bacterial and Archaeal biomass were heavily influenced by pH during the two-week start up period. Archaeal biomass peaked just before the methane production rate reached a maximum whereas Bacterial biomass peaked at a later stage. Changes in the phylogenetic diversity of the population were monitored by denaturing gradient gel electrophoresis (DGGE). An analysis of the changes in DGGE banding patterns suggested that rapid start-up of a new reactor was effected byinoculation as well as the provision of buffering capacity from the mature reactor leachate.

Effect of calcium chloride on abating inhibition due to volatile fatty acids during the start-up period in anaerobic digestion of municipal solid waste

2016 ◽  
Vol 37 (12) ◽  
pp. 1501-1509 ◽  
Author(s):  
Sunil Kumar ◽  
Avijit Das ◽  
G. Lohit Kumar Srinivas ◽  
Hiya Dhar ◽  
Vivek Kumar Ojha ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Calcium Chloride ◽  
Volatile Fatty Acids ◽  
Start Up

Environmental impact assessment of organic fraction of municipal solid waste treatment by anaerobic digestion in Sri Lanka

2021 ◽  
pp. 0734242X2110134
Author(s):  
Rasangika Thathsaranee Weligama Thuppahige ◽  
Sandhya Babel
Keyword(s):  
Anaerobic Digestion ◽  
Sri Lanka ◽  
Environmental Impact ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Resource Scarcity ◽  
Policy Formation ◽  
Ozone Formation ◽  
Organic Fraction ◽  
Management Options

The management of organic fraction of municipal solid waste (OFMSW) has continued to be a significant challenge in Sri Lanka. Anaerobic digestion is one of the management options of OFMSW. However, it generates unavoidable environmental impacts that should be addressed. The present study focuses to assess the environmental impact of a full-scale anaerobic digestion plant in Sri Lanka from a life cycle perspective. The inventory data were obtained from direct interviews and field measurements. Environmental burdens were found to be in terms of global warming potential (230 kg CO2 eq) ozone formation on human health (6.15 × 10−6 kg NO x eq), freshwater eutrophication (2.92 × 10−3 kg P eq), freshwater ecotoxicity (9.27 × 10−5 kg 1,4 DCB eq), human carcinogenic toxicity (3.98 × 10−4 kg 1,4 DCB eq), land use (1.32 × 10−4 m2 a crop eq) and water consumption (2.23 × 10−2 m3). The stratospheric ozone depletion, fine particulate matter formation, ozone formation on terrestrial ecosystems, terrestrial acidification, marine eutrophication, ecotoxicity (terrestrial and marine), human non-carcinogenic toxicity, mineral resource scarcity and fossil resource scarcity, were avoided due to electricity production. Results show that the direct gaseous emissions and digestate generation should be addressed in order to reduce the burdens from the anaerobic digestion plant. Finally, the results of the study could help in policy formation and decision-making in selecting future waste management systems in Sri Lanka.

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