Large scale study on measurement of respiration activity (AT4) by Sapromat and OxiTop

Binner, Erwin; Böhm, Katharina; Lechner, P.

doi:10.1016/j.wasman.2012.05.024

Cited by 56 publications

(33 citation statements)

References 7 publications

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“…The solution for producing SRF can influence the RDRI, because of the presence of putrescible materials in the treated waste. In Germany (BMU, 2001) and Austria (BKA, 2004) the respiration activity and the self-heating test as stability parameters for biologically treated waste have been common for a few years [21].…”

Section: Rdf and Srf Characterization And Evolutionmentioning

confidence: 99%

RDF/SRF Evolution in the MSW sector: coexistence of BMT and selective collection

Rada¹,

Ragazzi²

2015

Int. J. SDP

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Mechanical biological treatments (MBTs) are extensively used for managing municipal solid waste (MSW). There are four different methods: fertilizer or compost-like output production, biogas/energy production, wastederived fuel production and disposal in landfills. One issue is the varying characteristics of the waste fed over the lifetime of the plant. This problem is only partially related to the composition dynamics of the generated MSW. Indeed, the main source of input fluctuation of the plant is a result of the implementation of selective collection (SC) strategies, which modify the composition of residual MSW (RMSW). Often the SC strategies are not developed in harmony with the presence or planning of treatment plants, which can consequently suffer from significant variations. A lack of optimization in MSW management strategies and the implementation of new more stringent regulations applied to the final solid products from MBTs could result in a higher tariff for the users. This paper analyses these two problems in terms of two SC scenarios. The consequent effects on the composition of RMSW and on the performance of bio-drying (one of the MBTs options) are discussed. The effect of different SC strategies of MSW is analysed also in terms of RMSW suitability to be converted into refuse derived fuel/solid recovered fuel with simplified treatments. The role of respirometry is also discussed.

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Section: Rdf and Srf Characterization And Evolutionmentioning

confidence: 99%

RDF/SRF Evolution in the MSW sector: coexistence of BMT and selective collection

Rada¹,

Ragazzi²

2015

Int. J. SDP

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“…Equation (4) was used to calculate RA 4 for UBW, SBW I and SBW IV as reported in Table 1. DRI cum96h and RA 4 showed to be quite similar, and both indices were found to be much higher than the limit value equal to 7 mg O 2 g DM -1 set by the Austrian Landfill Ordinance (Binner et al 2012), indicating a high reactivity of the material even after 4 weeks of biodegradation. It has to be observed that the Austrian limit is based on a longer duration of biological treatment as carried out in Austrian MBT plants, namely 2-6 weeks of intensive decomposition treatment plus a ripening phase ranging from 6 to 12 weeks (Tintner et al 2010), unlike MBT plants of Rome.…”

Section: Resultsmentioning

confidence: 74%

“…In other European countries, such as Austria, biological reactivity of waste is analyzed by means of a different type of respiration test that measures the cumulative oxygen uptake within a period of 4 days (RA 4 , Binner et al 2012 and mg O 2 g DM -1 , respectively. Equation (4) was used to calculate RA 4 for UBW, SBW I and SBW IV as reported in Table 1. DRI cum96h and RA 4 showed to be quite similar, and both indices were found to be much higher than the limit value equal to 7 mg O 2 g DM -1 set by the Austrian Landfill Ordinance (Binner et al 2012), indicating a high reactivity of the material even after 4 weeks of biodegradation.…”

Section: Resultsmentioning

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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“…Micro-Oxymax (Gómez et al 2004), electrolytic respirometers, e.g. Sapromat ® (Villaseñor et al 2011, Kilian and Macedowska-Capiga 2011, Sánchez et al 2012, Binner et al 2012, manometric respirometers, e.g. the OxiTop ® system (Sadaka et al 2006), diverse modifi ed static and dynamic respirometers (Gómez et al 2004, Malińska and Richard 2006, Körner et al 2003, Tremier et al 2005), and gas chromatography or oxygen electrodes (Jędrczak 2007).…”

Section: Introductionmentioning

confidence: 99%

“…for determination of biodegradability of various types of waste materials in aerobic conditions, stability and maturity of produced composts (e.g. respiration activity AT 4 ) (Binner et al 2012), and for investigation of composting dynamics parameters for selected mixtures (Malińska andRichard 2006, Myszograj et al 2014). Veeken et al (2003) used the OxiTop ® system for determination of stability of various organic wastes and composts produced from green waste.…”

Section: Introductionmentioning

confidence: 99%

Application of a modified OxiTop® respirometer for laboratory composting studies

Malińska

2016

Archives of Environmental Protection

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This study applied a modifi ed OxiTop ® system to determine the oxygen uptake rate during a 2-day respiration test of selected composting materials at different moisture contents, air-fi lled porosities and composition of composting mixtures. The modifi cation of the OxiTop ® respirometer included replacement and adjustment of a glass vessel (i.e. a 1.9-L glass vessel with wide mouth was used instead of a standard 1-L glass bottle, additionally the twist-off vessel lid was adjusted to attach the measuring head) and application of a closed steel mesh cylinder of 5 cm in diameter and 10 cm in height with the open surface area of the mesh of approximately 56.2%. This modifi cation allowed obtaining different bulk densities (and thus air-porosities) of the investigated composting materials in laboratory composting studies. The test was performed for apple pomace and composting mixtures of apple pomace with wood chips at ratios of 1:0.5, 1:1, 1:1.5 (d.w), moisture contents of 60%, 65% and 75% and air-fi lled porosities ranging from 46% to 1%. Due to diverse biodegradability of the investigated apple pomace and composting mixtures this test allows for the determination of the effects of different air-porosities (due to compaction in a pile) on the oxygen uptake rate for mixtures with a fi xed ratio of a bulking agent. The described method allows for laboratory determination of the effects of moisture content and compaction on biodegradation dynamics during composting.

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Large scale study on measurement of respiration activity (AT4) by Sapromat and OxiTop

Cited by 56 publications

References 7 publications

RDF/SRF Evolution in the MSW sector: coexistence of BMT and selective collection

RDF/SRF Evolution in the MSW sector: coexistence of BMT and selective collection

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

Application of a modified OxiTop® respirometer for laboratory composting studies

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