ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This study shows a possibility of using sewage sludge after thermal treatment (at1050°C for 3h) in the production of a building material. The use of dehydrated sewage sludgeas a component in building materials, like in the sludge-clay mixture employed in themanufacture of bricks, tiles and cements, has been frequently done around the world. Duringsludge-clay mixture firing, which was done by controlled heating at a temperature above of1000°C for 3h, organic substances of the sludge were completely eliminated. After thermaltreatment, the micropores formed due to the released expansive gases, are responsible for theacoustic and thermal isolation properties of the resulting material. A problem found in theashes was the high concentration of toxic compounds like Zn, Ni, Cr, Cu, Al oxides. The aimof the present work was to observe through scanning electron microscopy (SEM), X-rayfluorescence (XRF) and inductively coupled plasma optical emission spectrometer (ICP-OES)the integration of these oxides into the sintered ceramic matrix of sludge. Oxide integration isan important factor in brick manufacturing used as building materials
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.530-531.734.pdf
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