Several aspects of using ashes from sewage sludge incineration in the brick and tile industry have been examined. After discussing the item of ash production in Germany, the impact of different wastewater treatment methods is described; for instance, the use of precipitation agents containing iron will considerably influence the ash quality. Depending on their respective chemical composition, different ashes have different effects on the ceramic qualities of the bricks made of clay blended with ashes. These effects will be shown in regard to the major ceramic parameters. Similarly, the quality of the ashes also influences the elution behaviour and the mineral fixation of heavy metals.
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Research Article| December 01 1997
Utilization of sewage sludge ashes in the brick and tile industry
Water Sci Technol (1997) 36 (11): 251–258.
Bernd Wiebusch, Carl Franz Seyfried; Utilization of sewage sludge ashes in the brick and tile industry. Water Sci Technol 1 December 1997; 36 (11): 251–258. doi: https://doi.org/10.2166/wst.1997.0418
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