Journal of Engineering / 2014 / Article / Tab 3

Research Article

Treatment Efficiency by means of a Nonthermal Plasma Combined with Heterogeneous Catalysis of Odoriferous Volatile Organic Compounds Emissions from the Thermal Drying of Landfill Leachates

Table 3

Inlet and outlet concentration ranges and average concentration reduction for each compound family.

FamilyInlet conc. rangeOutlet conc. rangeAverage conc. reduction (%)
(μg/m3)(μg/m3)

Organic acids*3.7–29.50.2–3.567.7
Alcohols and ethers32.7–227.76.9–33.368.0
Aldehydes2.1–232.80.5–5.565.3
Ketones20.5–143.52.7–34.669.0
Esters0.4–2.10.1–1.044.7
Pyrazines and pyridines2.2–54.30.2–24.154.2
Sulphur compounds1.3–5.5n.d. <0.195.3
Other1.0–10.60.2–2.264.5

Excluding acetic acid, that had higher outlet than inlet levels, possibly due to new formation.

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