Emission of oxygenated volatile organic compounds (OVOCs) during the aerobic decomposition of orange wastes

Wu, Ting; Wang, Xinming

doi:10.1016/j.jes.2015.01.006

Cited by 25 publications

(5 citation statements)

References 51 publications

(108 reference statements)

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“…Other types of emissions, for example, α-pinene and limonene, were also detected during the entire composting process, consistent with a study analyzing the VOCs produced during fruit aerobic composting (Wu and Wang 2015). Organic waste can give off considerable amounts of terpenes during early disposal under aerobic conditions (Wang and Wu 2008).…”

Section: Analysis Of Odor Components During the Aerobic Composting Of...supporting

confidence: 84%

Volatile organic compounds and dominant bacterial community during aerobic composting of vegetable waste and cow manure co-complexing

Cao

Wang

et al. 2022

BioRes

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Vegetable waste was aerobically composed using a trough-type system, and the resulting emitted volatile organic compounds were investigated. In addition, the succession pattern of microorganisms was analyzed. Aerobic fermentation was conducted using a tomato stalk-cow dung mix (a water content of 65% and a carbon-to-nitrogen ratio of 25:1). The emitted volatile organic compounds comprised of 58 kinds of compounds, including 2 sulfur-containing compounds, 3 alcohols, 3 esters, 3 aldehydes, 3 ketones, 6 halogenated hydrocarbons, 18 aromatic hydrocarbons, 17 alkanes, and 3 alkenes. The primary volatile organic compounds produced were methyl sulfide, ethyl acetate, ethanol, and acetaldehyde. Clustering and principal coordinate analysis suggested that the community succession changed throughout the composting process in the odor-producing habitat. High-throughput sequencing revealed that the bacterial community was comprised of Firmicutes, Chloroflexi, Proteobacteria, and Actinobacteria, whereas the dominant flora included Ascomycota, Basidiomycota, and Mucoromycota. These findings could aid in the mitigation of volatile organic compounds and odors during vegetable waste composting as well as contribute to the development of deodorizing bacteria.

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Section: Analysis Of Odor Components During the Aerobic Composting Of...supporting

confidence: 84%

Volatile organic compounds and dominant bacterial community during aerobic composting of vegetable waste and cow manure co-complexing

Cao

Wang

et al. 2022

BioRes

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“…Alcohols, primarily ethanol, which are typical products resulting from incomplete aerobic degradation processes, turn out to be the dominant compounds in ambient air in most cases, especially in the active working area (Fig. S4) (Duan et al, 2014;Wu and Wang, 2015), and they are likely to be indicative of relatively fresh waste that is in the early stages of decomposition (Young and Parker, 1983). The concentration of ethanol can be as high as 2.4⋅10 3 µg m -3 at the working face (Table S1 in SM).…”

Section: Oxygenated Compoundsmentioning

confidence: 99%

Trace gas emissions from municipal solid waste landfills: A review

2021

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“…As expected, limited variety and relative amount in oxygenated compounds were found in only two GW biogas samples (Figures 2 and 3). Typically, these compounds are intermediates or by-products of aerobic decomposition processes (Li et al, 2021;Mustafa et al, 2017;Wu and Wang, 2015). Consequently, they are efficiently produced only at oxidizing conditions, e.g., during the alternative composting process.…”

Section: Voc Composition and Sources In Gw Biogasmentioning

confidence: 99%

Volatile Organic Compounds From Green Waste Anaerobic Degradation at Lab-Scale: Evolution and Comparison With Landfill Gas

et al. 2022

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The chemical composition of volatile organic compounds (VOCs) in landfill gas from municipal waste (MW) landfills primarily depends on the type of degrading waste. To provide first insights into the relationship between VOC chemistry (in landfill gas) and specific waste components, a lab-scale experiment on anaerobic digestion (AD) of green waste (GW) was carried out. The composition of the released C4+ VOCs was semi-quantitatively determined and indirectly compared to that generally expected for the overall MW landfill gas. The generated biogas from degrading GW during AD time showed up to 29 different VOCs, mainly including terpenes, followed by alkanes, alkenes, cyclics, aromatics, and halogenated compounds. O- and S-substituted compounds were sporadically detected. Overall, speciation and total concentration of VOCs fluctuated over AD time, likely due to changes in microbial populations and metabolism, as well as substrate depletion, during the AD evolution. As expected, VOC speciation in the GW biogas was lower than that of the typical MW landfill gas, since the latter is generated by a large variety of organic and synthetic waste components following different sequential degradation processes. These results highlighted that, when disposed of at MW landfill sites, the specific GW component may (i) potentially concur to the overall odour charge and toxic effects of MW landfill gas and (ii) detrimentally impact the energy exploitation of MW landfill gas by releasing terpenes, aromatics, and halogenated compounds.

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Emission of oxygenated volatile organic compounds (OVOCs) during the aerobic decomposition of orange wastes

Cited by 25 publications

References 51 publications

Volatile organic compounds and dominant bacterial community during aerobic composting of vegetable waste and cow manure co-complexing

Volatile organic compounds and dominant bacterial community during aerobic composting of vegetable waste and cow manure co-complexing

Trace gas emissions from municipal solid waste landfills: A review

Volatile Organic Compounds From Green Waste Anaerobic Degradation at Lab-Scale: Evolution and Comparison With Landfill Gas

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