This study investigates the sediment composition of used water from ceramic tile production, focusing on the mineralogical and microstructural characteristics of sediments before and after filtration. The research aims to assess the effectiveness of the filtration system in removing particulate matter and to explore potential applications for the resulting sludge. Used water from floor and wall tile production contains various mineral particles, including quartz, kaolinite, and mullite, with smaller particles in wall tile water leading to higher turbidity. After filtration, the water shows reduced turbidity and pH, indicating effective removal of particulate matter. X-ray diffraction (XRD) and mineralogical optical microscopy (MOM) reveal that both floor and wall tile sediments contain similar mineral compositions, with quartz, kaolinite, and mullite being the dominant minerals. The filtered water sediment contains smaller particles, including kaolinite nanoparticles, and is primarily composed of quartz, kaolinite, and mullite. Atomic force microscopy (AFM) confirms the presence of kaolinite nanoparticles with sizes ranging from 40 to 90 nm. The sludge from the filtration process contains a dense grainy structure of sediment particles, including quartz, mullite, and kaolinite, along with traces of iron hydroxide crystallized as goethite. Due to the presence of iron hydroxide, the sludge cannot be reused in ceramic tile production but may be suitable for other applications, such as ecological bricks or plasters. The study highlights the importance of effective filtration in managing used water from ceramic tile production and suggests potential applications for the resulting sludge. The findings also indicate that magnetic separation could be used to remove lepidocrocite clusters from the sludge, improving the efficiency of water treatment and enabling the reuse of the sludge in the main technological process. The research provides valuable insights into the mineralogical and microstructural characteristics of used water sediments and their potential applications in ceramic tile production and waste management.This study investigates the sediment composition of used water from ceramic tile production, focusing on the mineralogical and microstructural characteristics of sediments before and after filtration. The research aims to assess the effectiveness of the filtration system in removing particulate matter and to explore potential applications for the resulting sludge. Used water from floor and wall tile production contains various mineral particles, including quartz, kaolinite, and mullite, with smaller particles in wall tile water leading to higher turbidity. After filtration, the water shows reduced turbidity and pH, indicating effective removal of particulate matter. X-ray diffraction (XRD) and mineralogical optical microscopy (MOM) reveal that both floor and wall tile sediments contain similar mineral compositions, with quartz, kaolinite, and mullite being the dominant minerals. The filtered water sediment contains smaller particles, including kaolinite nanoparticles, and is primarily composed of quartz, kaolinite, and mullite. Atomic force microscopy (AFM) confirms the presence of kaolinite nanoparticles with sizes ranging from 40 to 90 nm. The sludge from the filtration process contains a dense grainy structure of sediment particles, including quartz, mullite, and kaolinite, along with traces of iron hydroxide crystallized as goethite. Due to the presence of iron hydroxide, the sludge cannot be reused in ceramic tile production but may be suitable for other applications, such as ecological bricks or plasters. The study highlights the importance of effective filtration in managing used water from ceramic tile production and suggests potential applications for the resulting sludge. The findings also indicate that magnetic separation could be used to remove lepidocrocite clusters from the sludge, improving the efficiency of water treatment and enabling the reuse of the sludge in the main technological process. The research provides valuable insights into the mineralogical and microstructural characteristics of used water sediments and their potential applications in ceramic tile production and waste management.