Disposal of Synthetic Surfactants-Containing Wastewater Treatment Sludge in the Ceramic Brick Production

摘要

The results of studies on the using the carbonate slurry purification surfactants-containing model solutions as the entrained additive in the production of wall ceramics are introduced here. For wastewater purification a thermally modified carbonated sediment formed in the production of sugar is used. It is found that at the firing temperature 950°C there is a decomposition of CaC03 contained in the sediment with the formation of CaO and C02. Evolving vapor and gaseous products contribute to pore formation in the body of ceramic mass which leads to a decrease in the density of ceramic products and improve their heat and sound insulation properties. Products with the additive of the water treated sludge in the amount of 50% can be used for the construction of non-critical structures (internal walls), the compressive strength of which must not be lower than 2.5 MPa or M25 type.