Greenhouse gas emissions during composting of two-phase olive mill wastes with different agroindustrial by-products

Sánchez-Monedero, Miguel Á.; Serramiá, N.; Civantos, Concepción García-Ortiz; Fernández‐Hernández, A.; Roig, A.

doi:10.1016/j.chemosphere.2010.07.022

Cited by 101 publications

(39 citation statements)

References 31 publications

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“…Kebreab et al (2006) and Brown et al (2008) reviewed the topic of GHG emissions from livestock and composting operations and they highlighted the importance of the composting feedstock, the height and shape of the pile, the control of moisture content and turning frequency as the main factors governing CH 4 emissions during the process, since these variables will affect both the oxygen availability and gas diffusion in the composting pile. The presence of manure can also increase the methane emissions due to the incorporation of anaerobic microorganisms, as observed by He et al (2000) and Sánchez-Monedero et al (2010) in composting piles treating food and olive mill wastes, respectively.…”

Section: Methane (Ch 4 )mentioning

confidence: 80%

“…These conditions can be temporally found at the early stages of the composting process, where large amounts of nutrients and available sources of organic compounds stimulate microbial growth, depleting the oxygen levels in the pile. Accordingly, most of CH 4 emissions have been recorded during the initial weeks of the process, at the beginning of the thermophilic phase (Beck-Friis et al 2000;Sánchez-Monedero et al 2010). The high temperatures reached at the beginning of the process reduce oxygen solubility (Pel et al 1997), facilitating the creation of anaerobic spots within the pile.…”

Section: Methane (Ch 4 )mentioning

confidence: 98%

“…Data on GHG emissions from full-scale composting facilities are necessary to improve the knowledge about the contribution to the composting in GHG emissions. In the last years, there has been an increase in the number of scientific publications studying GHG emissions during composting (Amlinger et al 2008;Boldrin et al 2009;Sánchez-Monedero et al 2010;Cayuela et al 2012;Colón et al 2012;Deportes 2012).…”

Section: Compostingmentioning

confidence: 98%

“…However, the global warming potential of these emissions is not taken into account in the environmental impact of composting operations since this biological CO 2 is considered to be carbon neutral (IPCC 2006). The exclusion from the inventories has reduced the number of papers studying CO 2 emissions, and this gas is only studied from the point of view of establishing mass balances of composting operations (Boldrin et al 2009) or as an index of the overall microbial activity of the pile, reflecting the progress of the process (Hobson et al 2005;Sánchez-Monedero et al 2010) and the evaluation of the stability of the end product (Barrena et al 2006).…”

Section: Carbon Dioxide (Co 2 )mentioning

confidence: 99%

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Greenhouse gas emissions from organic waste composting

et al. 2015

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There is actually a common consensus in using biological technologies for the treatment of organic wastes. For instance, composting is used for aerobic biological stabilisation of organic wastes. The amount of materials and the variety of wastes composted are increasing. However, composting is inherently a process generating gaseous emissions. Greenhouse gases (GHG) such as carbon dioxide, methane and nitrous oxide from compost are of special relevance for global warming. Although a part of these gases is inherent to the process, another important part can be abated by low-cost biological technologies such as biofiltration and its variations. This article reviews the emission of GHG from composting gases, from detection and measurement to minimisation and abatement. Special emphasis is given to the measurement of GHG to obtain reliable emission factors for the different composting technologies. These factors will help to compare different waste treatment options based on overall analysis tools such as life cycle assessment. A specific chapter is related to carbon and nitrogen dynamics in the composting matrix, and their consequences on the production of carbon and nitrogen gases. Finally, we present a review of the best available practices to minimise the GHG emissions from composting and the final treatment of composting offgases.

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Section: Methane (Ch 4 )mentioning

confidence: 80%

Section: Methane (Ch 4 )mentioning

confidence: 98%

Section: Compostingmentioning

confidence: 98%

Section: Carbon Dioxide (Co 2 )mentioning

confidence: 99%

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Greenhouse gas emissions from organic waste composting

et al. 2015

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“…Mean gas concentrations were used to calculate flow and accumulation and were subjected to an adjustment by a second order polynomial equation (gas concentration versus time), as proposed by [35]. The flows at zero time (empty vials)…”

Section: Data Analysis and Statisticsmentioning

confidence: 99%

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Novais¹,

Zenero²,

Frade³

et al. 2017

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Increases in greenhouse gases (GHG) emissions, upon changes in land use and agricultural management, lead to a search for techniques that enhance carbon residence time in soil. Pyrolysis increases the recalcitrance of organic materials and enhances their activities as physical, chemical and biological soil conditioners. Emissions of CO 2 , CH 4 and N 2 O quantified from a sandy soil that was treated with three rates (12.5, 25 e 50 Mg•ha −1 ) of either non-pyrolysed poultry manure and sugarcane straw or biochars, pyrolysed at two contrasting temperatures (350˚C and 650˚C). Subsequently, the flux of the three gases was converted and compared in a standard unit (CO 2 eq). The added biochars, significantly reduced GHG emissions, especially CO 2 , relative to the non-pyrolysed materials. The greatest differences between applied rates of poultry manure, relative sugarcane straw, both to biochar and raw material, and the positive response to the increase of pyrolysis temperture, confirm the importance of raw material choice for biochar production, with recalcitrance being an important initial characteristic. Greater emissions occurred with intermediate rate of biochars (25 Mg•ha −1 ) amendment to the soil. These intermediate rates had higher microbial biomass, provided by an intermediate C/N ratio derived from the original soil and the biochar, promoting combined levels of labile C and oxygen availability, leading to an optimal environment for microbiota.

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Greenhouse Gas Emission During Composting and Vermicomposting of Organic Wastes – A Review

Swati

Hait

2018

CLEAN Soil Air Water

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Human‐induced climate change, mainly through greenhouse gases emission (GGE), is attracting attention worldwide and has become one of the major threats to the environmental sustainability. Utmost is the need to understand the impact of waste management practices on GGE, or countries could incorporate alternative waste management strategies for various organic wastes. Strict regulatory controls limiting waste disposal in landfills and the consequent diversion of biodegradables have resulted in the adoption of sustainable waste management techniques like composting and vermicomposting. However, composting and vermicomposting systems for waste management, especially at large scale have the capacity to emit high levels of greenhouse gases (GHGs). This paper reviews the current available literature pertaining to GGE during composting and vermicomposting of various organic wastes, linking with the fate of carbon (C) and nitrogen (N) during stabilization. Further, the current study provides a comprehensive summary of the emissions and plausible mechanisms and factors responsible for the GGE during both processes. The article also highlights likely mitigation actions relating to process parameters effective in minimizing GGE during composting and vermicomposting of organic wastes.

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Greenhouse gas emissions during composting of two-phase olive mill wastes with different agroindustrial by-products

Cited by 101 publications

References 31 publications

Greenhouse gas emissions from organic waste composting

Greenhouse gas emissions from organic waste composting

Mitigation of Greenhouse Gas Emissions from Tropical Soils Amended with Poultry Manure and Sugar Cane Straw Biochars

Greenhouse Gas Emission During Composting and Vermicomposting of Organic Wastes – A Review

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