Impact of leachate recirculation and recirculation volume on stabilization of municipal solid wastes in simulated anaerobic bioreactors

Sponza, Deli̇a Teresa; Ağdağ, Osman Nuri

doi:10.1016/j.procbio.2003.11.012

Cited by 166 publications

(72 citation statements)

References 19 publications

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“…Results reveal that the average generated methane volumes (for the period under monitoring), for the NW and OW refuses were, respectively, 1000 and 1048 mL, which correspond to 54.2 and 57.7% of the total biogas generated. According to Sponza and Ağdağ (2004), the amount of methane produced per mass of biodigested organic material can be used as an indicator of the stabilization degree of the refuse evaluated.…”

Section: Methane Concentrationmentioning

confidence: 99%

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Schirmer

Jucá

Schuler

et al. 2014

Braz. J. Chem. Eng.

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-This work focuses on monitoring the generation of biogas by biochemical methane potential (BMP) assays, commonly used to assess anaerobic biodegradability of solid and liquid wastes under controlled conditions. The experiment employed 5 g of substrate of both refuses (fresh and one-year-old wastes), digested with 250 mL of inoculum in 1 L flasks as bioreactors (all of them in triplicate, operating under batch conditions at ± 35 ºC). Despite the difference of age of both refuses evaluated, there was no significant differences in volume (near 1800 mL) and composition (55% methane) of biogas generated in 80 days of incubation under mesophilic conditions. The important parameters of both refuses (such as moisture content, volatile solids and chemical oxygen demand) also showed very similar initial values.

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Section: Methane Concentrationmentioning

confidence: 99%

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Schirmer

Jucá

Schuler

et al. 2014

Braz. J. Chem. Eng.

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“…The waste used in this experiment had a lower organic content and higher inorganic fractions (i.e. glass, plastics and inerts) compared to other similar studies (Šan and Onay, 2001;Sponza and Ağdağ, 2004;. However, it was similar to the waste used by .…”

Section: Bioreactor Landfill Simulators Setup and Operationmentioning

confidence: 52%

Enhanced stabilisation of municipal solid waste in bioreactor landfills

Vazquez¹

2008

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“…Aerobic processing of these complex organic substances prior to anaerobic decomposition leads to the degradation of these complex organic components to make them easily available for methane-producing microorganisms [2,10,14,19,15]. Research has shown that 5 weeks aerobic pre-treatment of waste by eliminating the acid phase, accelerates the emergence of stable methanogenesis condition in reactors (high rates of W CH4 ), and that leachate recirculation intensifies degradation of pre-treated waste [11,20,16]. …”

Section: Evaluation Of Biodegradability Of Waste Before and Aftermentioning

confidence: 99%

“…Recirculation increases the moisture content of waste, lowers the concentration of potential methanogenesis inhibitors [11] and supplies the nutrients and enzymes necessary for microbial growth [20]. Besides accelerating decomposition of organic components of the waste the benefits of leachate recirculation includes an increase in methane production [16] and the removal of some of the pollutants presented in the recirculated leachate.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Biodegradability of Waste Before and After Aerobic Treatment

Suchowska-Kisielewicz¹,

Jędrczak²,

Sądecka³

2014

Civil and Environmental Engineering Reports

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An important advantage of use of an aerobic biostabilization of waste prior to its disposal is that it intensifies the decomposition of the organic fraction of waste into the form which is easily assimilable for methanogenic microorganisms involved in anaerobic decomposition of waste in the landfill. In this article it is presented the influence of aerobic pre-treatment of waste as well as leachate recirculation on susceptibility to biodegradation of waste in anaerobic laboratory reactors. The research has shown that in the reactor with aerobically treated waste stabilized with recilculation conversion of the organic carbon into the methane is about 45% higher than in the reactor with untreated waste stabilized without recirculation.

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Impact of leachate recirculation and recirculation volume on stabilization of municipal solid wastes in simulated anaerobic bioreactors

Cited by 166 publications

References 19 publications

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Methane production in anaerobic digestion of organic waste from Recife (Brazil) landfill: evaluation in refuse of diferent ages

Enhanced stabilisation of municipal solid waste in bioreactor landfills

Evaluation of Biodegradability of Waste Before and After Aerobic Treatment

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