Wpływ właściwości fizykochemicznych stałych pozostałości z termicznego przekształcania osadów ściekowych na możliwość ich wykorzystania w ceramice czerwonej / The Influence of Incinerated Sewage Sludge Ashes Physical and Chemical Properties in Posibility of Usage in Red Ceramic

The purpose of this case study is to investigate the properties and performance of sewage sludge ash from five specific sources such as plants incineratied as municipal sewage sludge in different part of Poland. The use of sludge as a construction and building material converts the waste into useful products that can alleviate disposal issues. Alternative materials are being considered for use by brick manufacturers as a potential cost effective solution to access materials with desirable compounds and properties that will satisfy the demand for large portfolios of products with different aesthetic properties. Testing is carried out to identify the properties and characteristics of alternative materials, as well as to determine whether the inclusion of certain alternative materials provide desirable results during lab-based experimentation. Special attention has been paid on ash mineralogy and chemical composition; particle size distribution; anion and cation leaching, which can be potentially dangerous and cause materials defects.