Evolution of process control parameters during extended co-composting of green waste and solid fraction of cattle slurry to obtain growing media

Cáceres, Ramón; Coromina, Narcís; Malińska, Krystyna; Marfà, Oriol

doi:10.1016/j.biortech.2014.12.051

Cited by 70 publications

(27 citation statements)

References 29 publications

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“…In this sense, Gregorich et al [33] reported that temperature at which half of the C was pyrolysed was strongly correlated with mineralizable C. However, Bernal et al [34] reported that cellulose, hemicellulose and lignin derived components are only partially decomposed during composting and transformed also in a lower speed. Cáceres et al [35] observed higher temperatures and longer bioactive period in piles with increased vegetable waste. During the composting of horticultural plant wastes, Jurado et al [25] observed that the fraction most affected by the composting process was cellulose, in contrast to lignin and hemicellulose, whose concentration in the final product remained almost unchanged in comparison to the content in raw material.…”

Section: Resultsmentioning

confidence: 99%

Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador

et al. 2017

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Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities. Concretely, in the Chimborazo Region (Ecuador), more than 80% of municipal solid waste is dumped into environment due to the lack of an efficient waste management strategy. Therefore, the aim of this study was to develop a demonstration project at field scale in this region to evaluate the feasibility of implanting the composting technology not only for the management of the organic waste fluxes from food market and gardening activities to be scaled-up in other developing regions, but also to obtain an end-product with a commercial value as organic fertilizer. Three co-composting mixtures were prepared using market wastes mixed with pruning of trees and ornamental palms as bulking agents. Two piles were created using different proportions of market waste and prunings of trees and ornamental palms: pile 1 (50:33:17) with a C/N ratio 25; pile 2: (60:30:10) with C/N ratio 24 and pile 3 (75:0:25) with C/N ratio 33), prepared with market waste and prunings of ornamental palm. Throughout the process, the temperature of the mixtures was monitored and organic matter evolution was determined using thermogravimetric and chemical techniques. Additionally, physico-chemical, chemical and agronomic parameters were determined to evaluate compost quality. The results obtained indicated that all the piles showed a suitable development of the composting process, with a significant organic matter decomposition, reached in a shorter period of time in pile 3. At the end of the process, all the composts showed absence of phytotoxicity and suitable agronomic properties for their use as organic fertilizers. This reflects the viability of the proposed alternative to be scaled-up in developing areas, not only to manage and recycle urban waste fluxes, but also to obtain organic fertilizers, including added value in economic terms related to nutrient contents.

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Section: Resultsmentioning

confidence: 99%

Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador

et al. 2017

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“…The temperature in the bins at the commencement of the experiment averaged 23 o C. During the following days of composting, a significant increase in temperature was observed, reaching maximum values in the first and second week of the process. An initial rise in temperature occurs regardless of environmental conditions and is the result of the rapid breakdown and mineralization of simple organic compounds [13]. The composting process consists of a mesophilic, thermophilic, cooling and curing phase.…”

Section: Resultsmentioning

confidence: 99%

Biomass of Fish By-Products as a Component of Compost for Agricultural Use

2016

5th International Conference on Biological, Chemical and Environmental Sciences (BCES-2016) March 24-25, 2016 London (United Ki

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“…However, this treatment may involve formation of leachate because of several reasons: (i) the high moisture content of manure and the compression caused by the overlying material column (Mason et al, 2004); (ii) the application of water to maintain the moisture content of the material that is being composted within an appropriate range (Cáceres et al, 2015;Tejada et al, 2008); and (iii) rainfall events -in uncovered composting systems - (Parkinson et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Nitrification of leachates from manure composting under field conditions and their use in horticulture

Cáceres¹,

Magrí²,

Marfà³

2015

Waste Management

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Evolution of process control parameters during extended co-composting of green waste and solid fraction of cattle slurry to obtain growing media

Cited by 70 publications

References 29 publications

Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador

Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador

Biomass of Fish By-Products as a Component of Compost for Agricultural Use

Nitrification of leachates from manure composting under field conditions and their use in horticulture

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