Characteristics and Composition of Volatile Organic Compound Emissions from the Decomposition of Selected Bioorganic Wastes Fractions
Abstract
The qualitative composition of emissions formed during the decomposition of protein and lipid fractions of bioorganic waste, as well as bird droppings, has been studied, and the ratio of light volatile organic compounds (VOCs) in them has been determined. It has been shown that the emissions at the first stage of composting contain eleven classes of VOCs, including those with strong odors such as indole, methanethiol, dimethyl sulfide, and others. The effectiveness of experimental biological product “Liquidator-2” used to reduce odor and accelerate biodegradation when exposed to protein fractions of bioorganic waste and bird droppings has been evaluated. The dynamics of changes in the composition of emissions when adding the experimental biological product “Liquidator-2” has been studied. The biological product has been shown to have the greatest impact on VOCs formed during the decomposition of fish fractions of bioorganic waste. The need to modify the composition of the biological product for some fractions of waste in order to ensure the destruction of dominant substances with a strong odor was noted. A method for simpler and more economical sampling and subsequent identification of VOCs emitted during the decomposition of individual fractions of bioorganic waste using a sorbent has been proposed, which allows for the replacement of expensive Tenax sorption tubes.
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