Dynamics of methanogenic activities in a landfill bioreactor treating the organic fraction of municipal solid wastes

A bench-scale investigation was conducted to evaluate the dynamics of methanogenic activities in a landfill bioreactor (LFBR) treating the organic fraction of municipal solid wastes (OFMSW). The specific methanogenic activity (SMA) test was used to measure each individual methanogenic activity on degrading carbohydrate, protein, lipid, butyrate, propionate, and acetate at an interval of one-year. A simple model incorporating three biokinetic parameters, namely lag-phase time, methane production rate and methane production potential, was employed to systematically describe the dynamics of SMA on the anaerobic mineralization of the OFMSW in an LFBR. The results indicate that the model is suitable to describe the dynamics of SMA in the LFBR. According to the dynamics of the SMA, the decomposition of proteins and lipids overruled the stabilization of the LFBR, while the rate of methanogenesis was higher than that of acetogenesis. Comparing the estimation and the observation of methane production rates suggested that the period of the critical incubation time (λ*) of the protein and the lipid influenced the efficiency of the LFBR.

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Biological hydrogen potential of materials characteristic of the organic fraction of municipal solid wastes

Water Science & Technology ◽

10.2166/wst.2000.0052 ◽

2000 ◽

Vol 41 (3) ◽

pp. 25-32 ◽

Cited By ~ 144

Author(s):

M. Okamoto ◽

T. Miyahara ◽

O. Mizuno ◽

T. Noike

Keyword(s):

Hydrogen Production ◽

Solid Wastes ◽

Batch Experiments ◽

Organic Fraction ◽

Production Potential ◽

Municipal Solid Wastes ◽

Biological Hydrogen Production ◽

Organic Solid ◽

Chicken Skin ◽

Organic Solid Wastes

The purpose of this study is to investigate the biological hydrogen production potential of individual organic fraction of municipal solid wastes (OFMSW) by batch experiments. Seven varieties of typical organic solid wastes including rice, cabbage, carrot, egg, lean meat, fat and chicken skin were selected to estimate the hydrogen production potential. Among the OFMSW, carbohydrate produced the most hydrogen through biological hydrogen fermentation compared with proteins or lipids. Subsequently, the biological hydrogen production potentials of some individual carbohydrate were measured: cabbage, 26.3–61.7 mL/g-VS; carrot, 44.9–70.7 mL/g-VS; and rice, 19.3–96.0 mL/g-VS. The hydrogen percentages of the total biogas produced from cabbage, carrot and rice were 33.9–55.1%, 27.7–46.8% and 44.0–45.6%, respectively.

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Sorption of arsenic by composts and biochars derived from the organic fraction of municipal solid wastes: Kinetic, isotherm and oral bioaccessibility study

Environmental Research ◽

10.1016/j.envres.2021.111988 ◽

2022 ◽

Vol 204 ◽

pp. 111988

Author(s):

Jacqueline Zanin Lima ◽

Eduardo Ferreira da Silva ◽

Carla Patinha ◽

Nuno Durães ◽

Eny Maria Vieira ◽

...

Keyword(s):

Solid Wastes ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Oral Bioaccessibility

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Sludge accumulation and methanogenic activity in an anaerobic lagoon

Water Science & Technology ◽

10.2166/wst.2000.0654 ◽

2000 ◽

Vol 42 (10-11) ◽

pp. 247-255 ◽

Cited By ~ 13

Author(s):

J. Paing ◽

B. Picot ◽

J. P. Sambuco ◽

A. Rambaud

Keyword(s):

Anaerobic Digestion ◽

Methane Production ◽

Anaerobic Degradation ◽

Volatile Fatty Acids ◽

Anaerobic Fermentation ◽

Methanogenic Activity ◽

Start Up ◽

Anaerobic Lagoon ◽

Methane Production Rate ◽

Sludge Accumulation

Sludge accumulation and the characteristics of anaerobic digestion in sludge had been investigated in a primary anaerobic lagoon. Methanogenic potential of sludge was evaluated by an anaerobic digestion test which measured the methane production rate. Sludge was sampled at several points in the lagoon to determine spatial variations and with a monthly frequency from the start-up of the lagoon to observe the development of anaerobic degradation. Maximum amounts of sludge accumulated near the inlet. The mean methane production of sludge was 2.9 ml gVS–1 d–1. Sludge near the outlet presented a greater methanogenic activity and a lesser concentration of volatile fatty acids than near the inlet. The different stages of anaerobic degradation were spatially separated, acidogenesis near the inlet and methanogenesis near the outlet. This staged distribution seemed to increase efficiency of anaerobic fermentation compared with septic tanks. Methane release at the surface of the lagoon was estimated to be very heterogeneous with a mean of 25 l m–2 d–1. The development of performance and sludge characteristics showed the rapid beginning of methanogenesis, three months after the start-up of the anaerobic lagoon. Considering the volume of accumulated sludge, it could however be expected that methanogenic activity would further increase.

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Biodrying process: a sustainable technology for treatment of municipal solid wastes organic fraction

Proceedings of 21th International Drying Symposium ◽

10.4995/ids2018.2018.7842 ◽

2018 ◽

Author(s):

Nabil Kechaou ◽

E Ammar

Keyword(s):

Organic Matter ◽

Moisture Content ◽

Energy Recovery ◽

Pollution Source ◽

Solid Wastes ◽

Waste To Energy ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Moisture Contents ◽

Forced Aeration

The Municipal Solid Waste of Agareb (Sfax –Tunisia), characterized by high organic fraction and moisture contents is the most worrying pollution source that must be managed by innovative treatment and recycling technologies. Bio-drying, as a waste to energy conversion technology, aims at reducing moisture content of this organic matter. This concept, similar to composting, is accomplished by using the heat generated from the microbial degradation of the waste matrix, while forced aeration is used. The purpose of this work was to reduce the moisture content of the waste, by maximizing drying and minimizing organic matter biodegradation, in order to produce a solid recovered fuel with high calorific value.Keywords: Municipal solid wastes; organic matter; biodrying; composting; energy recovery.

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Effects of Leachate Salinity on the Aerobic and Anaerobic Mineralization of the Municipal Solid Wastes Organic Fraction

Environmental Technology ◽

10.1080/09593331808616528 ◽

1997 ◽

Vol 18 (2) ◽

pp. 203-209 ◽

Cited By ~ 4

Author(s):

E. Rolle ◽

M. R. Boni ◽

G. Carucci

Keyword(s):

Solid Wastes ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Aerobic And Anaerobic

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Impact of pH Management Interval on Biohydrogen Production from Organic Fraction of Municipal Solid Wastes by Mesophilic Thermophilic Anaerobic Codigestion

BioMed Research International ◽

10.1155/2015/590753 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 5

Author(s):

Chaudhry Arslan ◽

Asma Sattar ◽

Ji Changying ◽

Abdul Nasir ◽

Irshad Ali Mari ◽

...

Keyword(s):

Anaerobic Digestion ◽

Food Waste ◽

Solid Wastes ◽

Biohydrogen Production ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Anaerobic Codigestion ◽

Ph Management

The biohydrogen productions from the organic fraction of municipal solid wastes (OFMSW) were studied under pH management intervals of 12 h (PM12) and 24 h (PM24) for temperature of37±0.1°C and55±0.1°C. The OFMSW or food waste (FW) along with its two components, noodle waste (NW) and rice waste (RW), was codigested with sludge to estimate the potential of biohydrogen production. The biohydrogen production was higher in all reactors under PM12 as compared to PM24. The drop in pH from 7 to 5.3 was observed to be appropriate for biohydrogen production via mesophilic codigestion of noodle waste with the highest biohydrogen yield of 145.93 mL/gCODremovedunder PM12. When the temperature was increased from 37°C to 55°C and pH management interval was reduced from 24 h to 12 h, the biohydrogen yields were also changed from 39.21 mL/gCODremovedto 89.67 mL/gCODremoved, 91.77 mL/gCODremovedto 145.93 mL/gCODremoved, and 15.36 mL/gCODremovedto 117.62 mL/gCODremovedfor FW, NW, and RW, respectively. The drop in pH and VFA production was better controlled under PM12 as compared to PM24. Overall, PM12 was found to be an effective mean for biohydrogen production through anaerobic digestion of food waste.

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