CH4 analysis Articles

  • Comfort and safety

    Type HOFGAS® - Ready/C 300  Commissioning 2004Site Moncorneil (FR) Situation Moncorneil is a medium-sized landfill near Toulouse. A heating boiler is to be operated with landfill gas and the acquired heat is used for leachate treatment. In view of the complete landfill design the customer demands a container construction with remote monitoring of the plant.   ...


    By Hofstetter BV

  • Containerised Solution

    Type      HOFGAS®- Ready/C 1500  Commissioning      2003 Site      Malaga (ES) Situation This landfill is situated in Malaga on the coast of southern Spain. In 1999 Hofstetter installed a simple measuring flare HOFGAS® - Smarty 500, which delivered precise data of the gas quality and quantity. The ...


    By Hofstetter BV

  • High temperature combustion of landfill gas

    Type     Compact plant HOFGAS® - Efficiency 250 Commissioning     December 2001 Site     Storkohmo landfill, Kokkola (FIN) Situation Storkohmo landfill is located 400km north of Helsinki on Finland's west coast near the city of Kokkola. Based on local legislation requirements ( reduction of green house gas emissions ) the ...


    By Hofstetter BV

  • Multigas analyzer supports liquid fuel research - Case study

    Two advanced FTIR analyzers are being employed to monitor multiple gas concentrations simultaneously in laboratory scale reactors at Sasol’s Research and Technology Centre in South Africa. The monitors, which were supplied by Gasmet Technologies (Finland), are being used to study changes in gas composition as gas passes through the reactor of the Fischer–Tropsch process – a key ...


    By Gasmet Technologies Oy

  • A pilot-scale anaerobic membrane bioreactor under short hydraulic retention time for municipal wastewater treatment: performance and microbial community identification

    Anaerobic membrane bioreactor (AnMBR) processes are a promising method of recovering energy from municipal wastewater. In this study, a pilot-scale AnMBR with extremely short hydraulic retention time (HRT = 2.2 h) was operated at a flux of 6 L/(m2h) for 340 days without any membrane cleaning. The average value achieved for chemical oxygen demand (COD) removal was 87% and for methane yield was ...


    By IWA Publishing

  • A laboratory-scale comparison of compost and sand—compost—perlite as methane-oxidizing biofilter media

    Municipal solid waste landfills produce methane, a potent greenhouse gas. A treatment approach is to passively vent landfill gas through a methane-oxidizing biofilter medium, a porous substrate that facilitates the growth of methanotrophic bacteria. Two substrates, compost and a sand—compost—perlite (SCP) mixture, were evaluated in a laboratory-scale experiment for their suitability as biofilter ...


    By SAGE Publications Ltd

  • Hydrogeochemical and biological processes affecting the long-term performance of an iron-based permeable reactive barrier

    Received for publication November 29, 2007. Despite the wide diffusion of zero-valent iron (Fe0) permeable reactive barriers (PRBs), there is still a great uncertainty about their longevity and long-term performance. The aim of this study is to investigate the biological and the hydrogeochemical processes that take place at a Fe0 installation located in Avigliana, Italy, and to derive some ...

  • Gas-to-energy plant; production of electricity with landfill gas

    Type      Degassing installation HOFGAS®- Ready 600 Commissioning      January 2002 Site      Landfill of Bovenfeld (NL) Situation The 9ha large landfill site Bovenfeld is located 150km northeast of Amsterdam. The resulting landfill gas has to be cleaned, in accordance with the local legislation. A degassing ...


    By Hofstetter BV

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