Performance of a low cost MBT prior to landfilling: Study of the biological treatment of size reduced MSW without mechanical sorting

Lornage, R.; Redon, Estelle; Lagier, Thomas; Hébé, I.; Carré, J.

doi:10.1016/j.wasman.2006.10.018

Cited by 73 publications

(41 citation statements)

References 8 publications

(7 reference statements)

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“…MBT also allows an increase in the recovery of recyclable materials and reduces the mass of waste deposited [3][4][5][6]. The degree of waste biostabilization depends on a number of factors: the waste morphological composition (the percentage of organic biodegradable substance), the type of method utilized, the conditions of the biological stabilization process, and its duration [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Effect of aerobic pretreatment of waste on the rate of anaerobic treatment processes

Suchowska-Kisielewicz

Jędrczak

Sądecka

et al. 2012

J Mater Cycles Waste Manag

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The efficiency of waste degradation can be expressed by the rate of waste decomposition in individual phases. This article presents the durations of degradation phases of pretreated and untreated waste stabilized in anaerobic laboratory reactors. In this investigation, the quantities of organic and nitrogen contaminants emitted from the waste during the study are presented. The study confirmed the beneficial effects of aerobic pretreatment of waste before landfilling on reducing the duration of hydrolysis and acid phases, and speeding up the start of the stable methane phase. In the pretreated waste reactor, the stable methane phase began about 19 weeks earlier than in the untreated waste. The total amounts of contaminants removed from the aerobic pretreatment waste were lower than from untreated waste, with values of COD, TOC, BOD 5 , and VFA corresponding to 21, 18, 6, and 23 %, respectively, and values of TKN and NH 4 of 7 and 50 %, respectively.

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Section: Introductionmentioning

confidence: 99%

“…An additional benefit resulting from using aerobic biostabilization is a reduction in the time of pollutant emissions, due to faster development of the stable methane conditions in landfills [3,12,14,15].…”

Section: Introductionmentioning

confidence: 99%

Effect of aerobic pretreatment of waste on the rate of anaerobic treatment processes

Suchowska-Kisielewicz

Jędrczak

Sądecka

et al. 2012

J Mater Cycles Waste Manag

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“…One of the output of MBT is the stabilized biowaste (SBW) produced from the biological treatment, generally consisting of aerobic biostabilization, of the organic fraction mechanically separated from the input MSW. Nowadays, unlike other MBT outputs (such as refuse derived fuels, RDFs), official European standards regulating quality requirements of the stabilized biowaste and its possible use options do not exist despite hundreds of large scale MBT facilities of residual MSW were developed in Europe in the last two decades (Lornage et al 2007;Barrena et al 2009;Bayard et al 2010;Ponsá et al 2010;Tintner et al 2010). There is only a draft of the European Commission, i.e., ''Biological treatment of biowaste-2nd draft' ' (European Commission 2001), which states that the mechanical-biological treatment shall have the purpose of stabilizing and reducing the volume of the biodegradable waste in order to ensure that the resulting stabilized biowaste can either be used for ecological improvement or has reduced negative environmental impacts when landfilled.…”

Section: Introductionmentioning

confidence: 99%

Quality evaluation and improvement of mechanically–biologically treated municipal solid waste in view of a possible recovery

Lonardo

Lombardi

Gavasci

2014

Int. J. Environ. Sci. Technol.

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This study aimed to identify possibilities to improve the quality of the stabilized biowaste coming from the mechanical-biological treatment of municipal solid waste produced in Rome for possible recovery rather than landfilling. The waste sampled before and after the first and the fourth week of aerobic biodegradation as well as different particle size classes composing the biostabilized materials were characterized in order to investigate the content and distribution of contaminants. Results showed, firstly, that the stabilized biowaste was not biologically stable after 4 weeks of biostabilization process, presenting dynamic respiration index [1,000 mg O 2 kg VS -1 h -1 . Heavy metal (Cd, Cr, Cu, Ni, Pb, Zn) content fulfilled the requirements for utilization, but by contrast, their release in water phase was quite high and not complying with Italian regulatory limits for waste recovery. In order to raise the quality, the biological process management should be improved by increasing the water amount to add to the rotting waste since the output material had moisture (19.7 % WM) lower than the recommended content for an optimized aerobic biodegradation ([40 %). Furthermore, fractions having particle size higher than 10 mm, composed of high content of impurities and heavy metals, should be separated by obtaining a reduction in chemical-physical contamination. Finer waste flow (\10 mm) can be recovered in environmental remediation activities, whereas coarser fractions ([10 mm) can be used in waste-to-energy plants, given the great content of high calorific value materials and the compliance with characteristics defined for solid recovered fuels.

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“…The main purpose of this biostabilization technology is to achieve the highest possible degree of stabilisation of organic waste, so that emission of pollutants from stabilised waste deposited at landfills is as low as possible. Additionally, MBT systems allow us to increase reclamation of materials for recycling and to reduce the quantity of deposited waste [13,9,4,17]. In developing countries the recommended method of biological waste stabilisation before landfilling is aerobic decomposition.…”

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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Performance of a low cost MBT prior to landfilling: Study of the biological treatment of size reduced MSW without mechanical sorting

Cited by 73 publications

References 8 publications

Effect of aerobic pretreatment of waste on the rate of anaerobic treatment processes

Effect of aerobic pretreatment of waste on the rate of anaerobic treatment processes

Quality evaluation and improvement of mechanically–biologically treated municipal solid waste in view of a possible recovery

Evaluation of Biodegradability of Waste Before and After Aerobic Treatment

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