Enhanced Biogas Production and Dewaterability from Sewage Sludge with Alkaline Pretreatment at Mesophilic and Thermophilic Temperatures

2018 ◽  
Vol 229 (3) ◽  
Author(s):  
Tianfeng Wang ◽  
Bingqing Xu ◽  
Xinyun Zhang ◽  
Qiyong Yang ◽  
Bingjie Xu ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Biogas Production ◽  
Alkaline Pretreatment

Hydrothermal, acidic, and alkaline pretreatment of waste flower-mix for enhanced biogas production: a comparative assessment

2021 ◽  
Author(s):  
Avantika Agarwal ◽  
Kunwar Paritosh ◽  
Pragati Dangayach ◽  
Priyanka Gehlot ◽  
Nidhi Pareek ◽  
...  
Keyword(s):  
Biogas Production ◽  
Comparative Assessment ◽  
Alkaline Pretreatment

Sewage sludge and solid residues from biogas production derived biochar as an effective bio-waste adsorbent of fulvic acids from water or wastewater

Chemosphere ◽  
2021 ◽  
pp. 130447
Author(s):  
Magdalena Kończak ◽  
Anna Siatecka ◽  
Michael A. Nazarkovsky ◽  
Bożena Czech ◽  
Patryk Oleszczuk
Keyword(s):  
Sewage Sludge ◽  
Biogas Production ◽  
Fulvic Acids

scholarly journals Biogas potential of organic waste onboard cruise ships — a yet untapped energy source

2021 ◽  
Author(s):  
Kai Schumüller ◽  
Dirk Weichgrebe ◽  
Stephan Köster
Keyword(s):  
Energy Source ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Food Waste ◽  
Energy Demand ◽  
Organic Waste ◽  
Biogas Production ◽  
Biogas Yield ◽  
Cruise Ships ◽  
Detailed Presentation

AbstractTo tap the organic waste generated onboard cruise ships is a very promising approach to reduce their adverse impact on the maritime environment. Biogas produced by means of onboard anaerobic digestion offers a complementary energy source for ships’ operation. This report comprises a detailed presentation of the results gained from comprehensive investigations on the gas yield from onboard substrates such as food waste, sewage sludge and screening solids. Each person onboard generates a total average of about 9 kg of organic waste per day. The performed analyses of substrates and anaerobic digestion tests revealed an accumulated methane yield of around 159 L per person per day. The anaerobic co-digestion of sewage sludge and food waste (50:50 VS) emerged as particularly effective and led to an increased biogas yield by 24%, compared to the mono-fermentation. In the best case, onboard biogas production can provide an energetic output of 82 W/P, on average covering 3.3 to 4.1% of the total energy demand of a cruise ship.

scholarly journals Enhanced Biohydrogen Production from Sewage Sludge with Alkaline Pretreatment

2004 ◽  
Vol 38 (11) ◽  
pp. 3195-3202 ◽  
Author(s):  
Mulin Cai ◽  
Junxin Liu ◽  
Yuansong Wei
Keyword(s):  
Sewage Sludge ◽  
Alkaline Pretreatment ◽  
Biohydrogen Production

Improving biogas production from anaerobic co-digestion of sewage sludge with a thermal dried mixture of food waste, cheese whey and olive mill wastewater

2018 ◽  
Vol 71 ◽  
pp. 644-651 ◽  
Author(s):  
A.E. Maragkaki ◽  
I. Vasileiadis ◽  
M. Fountoulakis ◽  
A. Kyriakou ◽  
K. Lasaridi ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Food Waste ◽  
Cheese Whey ◽  
Biogas Production ◽  
Olive Mill Wastewater ◽  
Olive Mill

Enhancement of polycyclic aromatic hydrocarbons removal during anaerobic treatment of urban sludge

2003 ◽  
Vol 48 (4) ◽  
pp. 53-60 ◽  
Author(s):  
E. Trably ◽  
D. Patureau ◽  
J.P. Delgenes
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Sewage Sludge ◽  
Aromatic Hydrocarbons ◽  
Agricultural Soils ◽  
Biogas Production ◽  
Bacterial Consortium ◽  
Anaerobic Treatment ◽  
Biological Degradation ◽  
Low Concentrations ◽  
Polycyclic Aromatic

Anaerobically stabilized sewage sludge has potential to partially substitute synthetic fertilizers. The main risk with the recycling of urban sludge on agricultural soils is the accumulation of unwanted products, such as trace metals and organic micropollutants. In this context, the polycyclic aromatic hydrocarbons (PAHs) are particularly monitored because of their toxic properties at low concentrations and their high resistance to biological degradation. The aim of the present study was to optimize PAHs removal during anaerobic digestion of contaminated sewage sludge. Thirteen PAHs were monitored in laboratory-scale anaerobic bioreactors under mesophilic (35°C) and thermophilic (55°C) methanogenic conditions. Abiotic losses were statistically significant for the lightest PAHs, such as fluorene, phenanthrene and anthracene. It was shown that PAH removal was due to a specific biological activity. Biological PAHs removal was significantly enhanced by an increase of the temperature from 35°C to 55°C, especially for the heaviest PAHs. Bioaugmentation experiment was also performed by addition of a PAH-adapted bacterial consortium to a non-acclimated reactor. Significant enhancement of PAHs removal was observed. It was finally shown that PAH removal efficiencies and methanogenic performances were closely linked. The rate of biogas production may be used as an indicator of bacterial activity on PAH removal.

scholarly journals Genome-Guided Characterization of Ochrobactrum sp. POC9 Enhancing Sewage Sludge Utilization—Biotechnological Potential and Biosafety Considerations

2018 ◽  
Vol 15 (7) ◽  
pp. 1501 ◽  
Author(s):  
Krzysztof Poszytek ◽  
Joanna Karczewska-Golec ◽  
Anna Ciok ◽  
Przemyslaw Decewicz ◽  
Mikolaj Dziurzynski ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Pathogenic Bacteria ◽  
Biogas Production ◽  
Treatment Plant ◽  
Antibiotic Resistance Genes ◽  
Biotechnological Potential ◽  
Sewage Sludge Sample ◽  
Complex Organic ◽  
Insight Into

Sewage sludge is an abundant source of microorganisms that are metabolically active against numerous contaminants, and thus possibly useful in environmental biotechnologies. However, amongst the sewage sludge isolates, pathogenic bacteria can potentially be found, and such isolates should therefore be carefully tested before their application. A novel bacterial strain, Ochrobactrum sp. POC9, was isolated from a sewage sludge sample collected from a wastewater treatment plant. The strain exhibited lipolytic, proteolytic, cellulolytic, and amylolytic activities, which supports its application in biodegradation of complex organic compounds. We demonstrated that bioaugmentation with this strain substantially improved the overall biogas production and methane content during anaerobic digestion of sewage sludge. The POC9 genome content analysis provided a deeper insight into the biotechnological potential of this bacterium and revealed that it is a metalotolerant and a biofilm-producing strain capable of utilizing various toxic compounds. The strain is resistant to rifampicin, chloramphenicol and β-lactams. The corresponding antibiotic resistance genes (including blaOCH and cmlA/floR) were identified in the POC9 genome. Nevertheless, as only few genes in the POC9 genome might be linked to pathogenicity, and none of those genes is a critical virulence factor found in severe pathogens, the strain appears safe for application in environmental biotechnologies.

scholarly journals Enhancement of biogas production from pineapple waste by acid-alkaline pretreatment

2020 ◽  
Vol 471 ◽  
pp. 012005
Author(s):  
B. Wichitsathian ◽  
J. Yimrattanabavorn ◽  
W. Wonglertarak
Keyword(s):  
Biogas Production ◽  
Alkaline Pretreatment ◽  
Pineapple Waste
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