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. (28th December 2014)

• Record Type: Journal Article
• Authors: Almarcha, Daniel; Almarcha, Manuel; Jimenez-Coloma, Elena; Vidal, Laura; Puigcercós, Montserrat; Barrutiabengoa, Iban
• Other Names: Park Jong M. Academic Editor.
• Is Part Of: Journal of engineering. Volume 2014(2014)
• Publication Date: 2014-12-28
• Subjects: Engineering -- Periodicals; 620.005
• DOI: 10.1155/2014/831584
• Languages: English
• ISSNs: 2314-4904

Abstract

Abstract : The objective of the present work was to assess the odoriferous volatile organic compounds depuration efficiency of an experimental nonthermal plasma coupled to a catalytic system used for odor abatement of real emissions from a leachate thermal drying plant installed in an urban solid waste landfill. VOC screening was performed by means of HRGC-MS analysis of samples taken at the inlet and at the outlet of the nonthermal plasma system. Odor concentration by means of dynamic olfactometry, total organic carbon, mercaptans, NH3, and H2 S were also determined in order to assess the performance of the system throughout several days. Three plasma frequencies (100, 150, and 200 Hz) and two catalyst temperatures (150°C and 50°C) were also tested. Under conditions of maximum capacity of the treatment system, the results show VOC depuration efficiencies around 69%, with average depuration efficiencies between 44 and 95% depending on the chemical family of the substance. Compounds belonging to the following families have been detected in the samples: organic acids, alcohols, ketones, aldehydes, pyrazines, and reduced sulphur compounds, among others. Average total organic carbon removal efficiency was 88%, while NH3 and H2 S removal efficiencies were 88% and 87%, respectively, and odor concentration abatement was 78%.