Recovery of Phosphate Sludge as Concrete Supplementary Material

摘要: The automotive industry plays a major role in the worldwide economy and represents an opportunity to increase performance of Turkish economy. Phosphating units manufacturing plants generate phosphate sludge as waste, which is classified hazardous waste European Waste Catalogue. Phosphate must be disposed licensed disposal according current environmental regulations. Solidification/stabilization (S/S) widely used treatment technology for wastes. Portland cement solidification stabilization processes immobilize Ni Zn well create construction material cobble stone pavement. Examination products obtained by S/S performed two points: determine quality assess impacts. samples are subjected chemical characterization size distribution analysis leaching test. Concrete was produced process with addition replace sand. Tests product were carried out compressive strength, permeability, elasticity. At end test, elution concentrations while using water pH values 4.0, 5.4, 9.0 determined under limit inert properties. Use should considered sand replacement proportion 1% concrete production, such pavement, without any adverse