Home composting versus industrial composting: Influence of composting system on compost quality with focus on compost stability

Barrena, Raquel; Font, Xavier; Gabarrell, Xavier; Sánchez, Antoni

doi:10.1016/j.wasman.2014.02.008

Cited by 131 publications

(74 citation statements)

References 30 publications

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“…This higher percentage is explained by the fact that no new wood chips (responsible for moisture control) were inserted in the process. Nevertheless, the moisture levels are in agreement with those obtained by other authors in experiments with low-volume composters, ranging between 44 and 73% (Barrena et al, 2014;Ermolaev et al, 2014;Faverial and Sierra, 2014;Quirós et al, 2014;Lleó et al, 2013;Karnchanawong and Suriyanon, 2011). Moisture content is the second variable, after temperature, which strongly influences the loss of organic matter and nitrogen (Andersen et al, 2011;Quirós et al, 2014).…”

Section: Resultssupporting

confidence: 91%

“…On the other hand, if the moisture level decreases below a critical level (<30%), microbial activity decreases and the microorganisms will enter a dormant state. In addition, extremely low moisture contents may cause operational problems, resulting in poor stability of organic matter (Ryckeboer et al, 2003;Barrena et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…In this work, an exploratory study was conducted to investigate the performance of food waste composting using a small-scale domestic composter in semi-continuous and batch fill scenarios with new and reused wood chips. Several investigations on home composting have been conducted over the past decade with a focus on the process efficiency regarding different structural materials and operating strategies (Faverial and Sierra, 2014;Lleó et al, 2013;Colón et al, 2010;Chang et al, 2006); the effects of aeration (Karnchanawong and Suriyanon, 2011); the mass balance and life cycle analysis (Andersen et al, 2011); the quality and stability of the compound (Barrena et al, 2014); and gas emissions (Ermolaev et al, 2014;Quirós et al;.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Household food-waste composting using a small-scale composter

Vich¹,

Miyamoto²,

Queiroz³

et al. 2017

Rev. ambiente água

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Household food-waste composting is an attractive alternative for Brazilian waste management; however, there are few programs or studies regarding the implementation or management of this small-scale process. This study investigates the performance of food-waste composting using a simple and small-scale domestic composter. Three composting trials were conducted using food waste and wood chips in 10 L plastic bins using different filling schemes. In the first trial, the composter was filled weekly over two months. In the second, the composter was filled once with a mixture of food waste and 100% of the used wood chips from the previous trial. In the last third trial, the composter was filled with food waste and wood chips (50% of wood chips used in the second trial and 50% of untreated wood chips). The physical chemical parameters of the compost were monitored and the total coliforms and E. coli were measured. In all trials, the temperature varied between 26.7°C and 46.2°C throughout the process. The reduction in wet mass was 58-69%, while the reduction in dry mass was 37-61%. The pH value, the contents of carbon and nitrogen and the C/N ratio were in accordance with the values recommended in norm 25 (July, 2009) adopted by Brazil's Agriculture Ministry. Only the compost from Trial 2, which had 1900 MPN g -1 total solids, did not meet the E. coli standards; this was likely due to the fact that when the temperatures did not reach the thermophilic phase, the relatively long time the waste remains in the composter allows these pathogenic microorganisms to decay naturally.Keywords: domestic composter, food waste, household composting. Compostagem doméstica de resíduos de alimentos em composteira de pequena escala RESUMOA compostagem doméstica de resíduos alimentares é uma opção atraente para a gestão dos resíduos no Brasil; no entanto, existem apenas poucos programas, estudos e experiências sobre o comportamento deste processo em pequena escala. Esta pesquisa investigou o desempenho da compostagem de resíduos de alimentos em uma composteira simples e de pequena escala doméstica. Três ensaios de compostagem foram realizados com resíduos de alimentos e aparas de madeira em recipientes de plástico de 10 L utilizando diferentes estratégias de preenchimento. No primeiro ensaio, a composteira foi preenchida 719 Household food-waste composting using … Rev. Ambient. Água vol. 12 n. 5 Taubaté -Sep. / Oct. 2017 semanalmente durante dois meses. No segundo ensaio, a composteira foi preenchida uma única vez com uma mistura de resíduos de alimento e das aparas de madeira utilizadas no ensaio anterior. No último ensaio, a composteira foi preenchida com resíduos de alimentos e aparas de madeiras (50% de aparas de madeira utilizados na segunda etapa e 50% de aparas de madeira não tratadas). Os parâmetros físicos e químicos foram monitorados e os coliformes totais e E. coli foram quantificados no composto. Em todos os ensaios, a temperatura variou entre 26,7°C e 46,2°C ao longo do processo. A redução da massa úmida foi de 58-69...

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Household food-waste composting using a small-scale composter

Vich¹,

Miyamoto²,

Queiroz³

et al. 2017

Rev. ambiente água

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show abstract

“…Home and community composting have proven to be a sustainable strategy for food waste management that can reduce costs and environmental impact due to collecting, transport and treatment of MSW [5,26]. Composting is a low temperature bio-oxidative process with a stage of the organic matter degradation and the mineralisation of labile organic compounds (readily available for the microorganisms) and belongs to important trends in recycling organic and mineral components of wastes [3].…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of compost prepared with municipal solid waste

et al. 2017

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Abstract:One way that helps maintain the sustainability of agro-ecosystems land is the application of compost from municipal solid waste as fertilizer, because it can recover the nutrients contained in them, minimizing the negative impact on the environment. Composting as a method for preparing organic fertilizers and amendments is economically and ecologically sound and may well represent an acceptable solution for disposing of municipal solid waste. In the present work, the quality of compost is studied made from municipal solid waste; the content of mineral nutrients: potassium, calcium, magnesium, sodium, zinc, manganese, cupper, iron, nickel, chromium and lead has been investigated. The objective was to evaluate the changes in mineral nutrient concentration during the composting process. The compost was prepared in a pilot-plant using the turning-pile system. Temperature was used as a monitoring parameter to follow the composting progress, which underwent the typical trend of municipal solid waste composting mixtures. The results showed a similar evolution on the content of mineral nutrients of the mixture of municipal solid waste. This evolution originated in a mature compost (end sample) with an adequate content of mineral elements and physical-chemical characteristics for its use in agriculture. So, the use of compost of municipal solid waste represents an important tool for fertilization requirements for its use in agriculture.

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“…Compost stability is an important quality criterion in many recognised compost assurance schemes [2] with unstable composts of concern for reasons previously reported, such as generation of nuisance odours, attraction of disease carrying vectors, and self-heating potentially leading to fires [3,4]. In the UK, there is currently increasing interest in differentiating stability limits for key end markets (e.g., agriculture and horticulture) [5].…”

Section: Introductionmentioning

confidence: 99%

Improved Precision and Efficiency of a Modified ORG0020 Dynamic Respiration Test Setup for Compost Stability Assessment

2017

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Abstract:The ORG0020 dynamic respiration test is effective at distinguishing source segregated organic waste derived composts across a wide range of stabilities when compared to other standard tests; however, using the original diaphragm pump and manifold setup, the test is affected by variability in flow rate with time and across sample replicate vessels. Here, we demonstrate the use of a multichannel peristaltic pump to deliver a more consistent air flow to individual vessels. Using finished and unfinished industry compost samples from different sites with varying stabilities, we provide evidence of greater precision of the modified setup compared to the original. Furthermore, the reduced need for air flow adjustment resulted in improved running cost efficiency with less labour demand. Analysis of compost sample oxygen demand supports the current test air flow rate of 25-75 mL min −1 , although the improved air flow control will enable future narrowing of the acceptable range for better inter-laboratory performance.

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Home composting versus industrial composting: Influence of composting system on compost quality with focus on compost stability

Cited by 131 publications

References 30 publications

Household food-waste composting using a small-scale composter

Household food-waste composting using a small-scale composter

Quality assessment of compost prepared with municipal solid waste

Improved Precision and Efficiency of a Modified ORG0020 Dynamic Respiration Test Setup for Compost Stability Assessment

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