Characteristics and biogas production potential of municipal solid wastes pretreated with a rotary drum reactor

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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Thermophilic Co-Digestion of the Organic Fraction of Municipal Solid Wastes—The Influence of Food Industry Wastes Addition on Biogas Production in Full-Scale Operation

Molecules ◽

10.3390/molecules23123146 ◽

2018 ◽

Vol 23 (12) ◽

pp. 3146 ◽

Cited By ~ 3

Author(s):

Przemysław Seruga ◽

Małgorzata Krzywonos ◽

Marta Wilk

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Full Scale ◽

Solid Wastes ◽

Process Efficiency ◽

Electricity Production ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Biogas Yield ◽

Yield Increase

Anaerobic digestion (AD) has been used widely as a form of energy recovery by biogas production from the organic fraction of municipal solid wastes (OFMSW). The aim of this study was to evaluate the effect of the introduction of co-substrates (restaurant wastes, corn whole stillage, effluents from the cleaning of chocolate transportation tanks) on the thermophilic anaerobic digestion process of the mechanically separated organic fraction of municipal solid wastes in a full-scale mechanical-biological treatment (MBT) plant. Based on the results, it can be seen that co-digestion might bring benefits and process efficiency improvement, compared to mono-substrate digestion. The 15% addition of effluents from the cleaning of chocolate transportation tanks resulted in an increase in biogas yield by 31.6%, followed by a 68.5 kWh electricity production possibility. The introduction of 10% corn stillage as the feedstock resulted in a biogas yield increase by 27.0%. The 5% addition of restaurant wastes contributed to a biogas yield increase by 21.8%. The introduction of additional raw materials, in fixed proportions in relation to the basic substrate, increases biogas yield compared to substrates with a lower content of organic matter. In regard to substrates with high organic loads, such as restaurant waste, it allows them to be digested. Therefore, determining the proportion of different feedstocks to achieve the highest efficiency with stability is necessary.

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Biogas production from the mechanically pretreated, liquid fraction of sorted organic municipal solid wastes

Environmental Technology ◽

10.1080/09593330.2016.1227877 ◽

2016 ◽

Vol 38 (11) ◽

pp. 1342-1350 ◽

Cited By ~ 2

Author(s):

A. Alvarado-Lassman ◽

J. M. Méndez-Contreras ◽

A. Martínez-Sibaja ◽

E. S. Rosas-Mendoza ◽

N. A. Vallejo-Cantú

Keyword(s):

Biogas Production ◽

Liquid Fraction ◽

Solid Wastes ◽

Municipal Solid Wastes

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

Water Science & Technology ◽

10.2166/wst.1998.0134 ◽

1998 ◽

Vol 38 (2) ◽

pp. 177-184 ◽

Cited By ~ 1

Author(s):

J. J. Lay ◽

Y. Y. Li ◽

T. Noike

Keyword(s):

Methane Production ◽

Solid Wastes ◽

Lag Phase ◽

Organic Fraction ◽

Production Potential ◽

Municipal Solid Wastes ◽

Methanogenic Activity ◽

Methane Production Rate ◽

One Year ◽

Biokinetic Parameters

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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Acidic pretreatment of cellulose for bio methane production

Journal of University of Shanghai for Science and Technology ◽

10.51201/jusst/21/10866 ◽

2021 ◽

Vol 23 (11) ◽

pp. 153-158

Author(s):

Mahmood Ajel ◽

◽

Fawziea M. Hussien ◽

Johain J. Faraj ◽

◽

...

Keyword(s):

Biogas Production ◽

Solid Wastes ◽

Plant Residues ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Alternative Source ◽

Organic Solid ◽

Acidic Pretreatment ◽

Microbial Groups ◽

Organic Solid Wastes

Present work deals with the exhaustive investigations of rapid de-lignification processes from source-sorted organic fractions that are recalcitrant in nature. Organic solid wastes (OSW) belong to the organic fraction of municipal solid wastes (MSW) and they act as enormous potential substrate for alternative source of energy in the form of bio-fuels. Nevertheless, these substrates are not easily biodegradable and the degree of biodegradability is solely dependent on the composition and characteristic of organic solid wastes in municipal solid wastes. The component responsible for recalcitrance of organic solid wastes is lignin that occurs in variable amounts in different plant residues. In order to remove the recalcitrance from organic fraction municipal solid wastes and to make it more easily degradable by microbial groups, certain pretreatment techniques have been adopted and they are applied either individually or in combined way for enhancement of anaerobic digestion (AD) process. The present work studied the effect of acid treatment with acetic acid on the used substrate, evaluated its effectiveness on biogas production, and studied the concentrations of CH4 and CO2 during the fermentation period, which amounted to 90 days. All results are presented in clear curves for the purpose of facilitating the study.

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