Gaseous emissions from ceramics manufactured with urban sewage sludge during firing processes.
The re-use of sewage sludge without any treatment as primary material-mixed with clays-in order to obtain structural ceramics for buildings has been successfully improved. In the Ecobrick project, the firing of a mixture of specific percentages of three components (clays, sludges and forest debris) resulted in a lighter and more thermal and acoustic insulating brick, compared with conventional clay-bricks. Volatile organic compounds (VOC) emission from the manufacturing of ceramics is the most important aspect to control. In the Ecobrick project VOC emissions were monitored by using a bench-scale furnace. The study was conducted using an EPA recommended sampling train and portable sampling tubes that were thermally desorbed and analyzed by gas chromatography/mass spectrometry. Drying of raw sewage-sludge and firing processes were considered separately. In this paper, we present VOC emissions coming from the firing step of the Ecobrick production.
Institut Politècnic del Campus de Terrassa, Universitat Politècnica de Catalunya, Ctra. Nacional 150, km. 14.5, Barcelona, Spain. joan.antoni.cusido@upc.es
J A
JA
Cusidó
L V
LV
Cremades
M
M
González
D016902:Air Pollution, Indoor / Q000032:analysis; D002516:Ceramics / Q000032:analysis*; D006256:Hazardous Waste / Q000032:analysis*; D006801:Humans; D009930:Organic Chemicals / Q000032:analysis*; D012037:Refuse Disposal / Q000379:methods; D012722:Sewage / Q000032:analysis*; D014835:Volatilization
D006256:Hazardous Waste; D009930:Organic Chemicals; D012722:Sewage