Relationships between emitted volatile organic compounds and their concentration in the pile during municipal solid waste composting was written by Sanchez-Monedero, M. A.;Fernandez-Hernandez, A.;Higashikawa, F. S.;Cayuela, M. L.. And the article was included in Waste Management (Oxford, United Kingdom) in 2018.Application of 106-73-0 The following contents are mentioned in the article:
Composting operations taking place at municipal solid waste (MSW) treatment plants represent a source of volatile organic compounds (VOC) to the atm. Understanding the variables governing the release of VOC at these facilities is crucial to assess potential health risks for site workers and local residents. In this work the changes in the VOC composition of a composting pile were monitored and compared to the VOC emitted from the same pile in order to understand the impact of composting operations on the release of VOC. More than one hundred VOC were identified in the solid phase of the composting piles, which were dominated by terpenes (about 50% of the total amount of VOC) and in a lower quantity alcs., volatile fatty acids and aromatic compounds There was a reduction in the total concentration of VOC in the pile during composting, from 45 to 35 mg/kg, but the composition and distribution of VOC families remained stable in the pile even in the mature compost. However, there was no correlation between the emitted VOC and their concentration in the composting pile. The VOC emission pattern was affected by the biol. activity in the pile (measured by temperature, CO2 evolution and the presence of CH4 emissions). The highest VOC emissions were detected at early stages of the process, alongside with the generation of CH4 in the pile, and then decreased sharply in the mature compost as a consequence of biodegradation and volatilization. These results pointed to the importance of composting operation rather than the composition of the raw materials on the release of VOC in composting plants. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Application of 106-73-0).
Methyl heptanoate (cas: 106-73-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application of 106-73-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics