CH4 analysis Articles

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.   ...

Jan. 4, 2009

By Hofstetter BV

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 ...

Jan. 4, 2009

By Hofstetter BV

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 ...

Jan. 4, 2009

By Hofstetter BV

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 ...

Sep. 25, 2014

By Gasmet Technologies Oy

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 ...

Feb. 6, 2017

By IWA Publishing

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 ...

Feb. 28, 2009

By SAGE Publications Ltd

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 ...

Mar. 24, 2009

By Soil Science Society of America (SSSA)

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 ...

Jan. 4, 2009

By Hofstetter BV