Landfill site is one of important odour emission *** emissions from landfill sites depend on the waste buried,operation activities,running conditions,*** from landfill sites may include reduced volatile organic sulfur...
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Landfill site is one of important odour emission *** emissions from landfill sites depend on the waste buried,operation activities,running conditions,*** from landfill sites may include reduced volatile organic sulfur compounds(VOSCs),volatile organic compounds(VOCs),inorganic compounds,and so on.A set of sampling and measurement methods had been used for determination of odorous compounds from a municipal waste landfill *** from landfill gas and leachate were all considered and measured for identification of potential odorant *** gas was sampled directly into Tedlar bags for sulfur compound analysis,while Tenax TA sorbent tube samples were collected for VOC determination.5 L of leachate sample was also collected from the leachate storage dam for flux hood emission test as emission sampling was impossible to be conducted on-site because of safety issue.14 volatile sulfur compounds were identified in the landfill gas,of which 10 were quantified with the concentrations of 5 VOSCs above their odour thresholds and identified as potential contributors to the odour observed on *** VOSC speciation of the leachate flux hood emission samples identified only two major sulfur components:carbonyl sulfide(COS)and hydrogen sulfide(H2S);and their abundances are considerably less(H2S=0.0006 mg/m3)than that from the landfill gas(H2S=0.0257 mg/m3).Over 130 VOCs were detected in the landfill gas;with at least 28 of them being documented *** only 6 VOCs were identified as odorant contributors in the leachate emission samples.
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