This study investigates the particulate matter dispersion in water used during ceramic tile manufacturing processes, both before and after treatment at water treatment facilities. The research focuses on the differences in water properties and sediment composition between floor and wall tile production. Key findings include: 1. **Water Properties**: Used water from floor and wall tile production is alkaline, with pH values of 10.21 and 10.84, respectively. After filtration, the pH decreases to 9.42, indicating a significant reduction in alkalinity. The water from wall tiles is more turbid due to finer suspensions, while the water from floor tiles has higher electrical conductivity and lower resistivity. 2. **Mineral Constituents**: X-ray diffraction (XRD) and mineralogical optical microscopy (MOM) reveal that both floor and wall tile waters contain similar mineral dispersions, including quartz (5–50 μm), kaolinite (1–30 μm), and mullite (5–125 μm). Glass particles are also present in both samples. 3. **Microstructural Observations**: High-resolution scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) confirm the XRD and MOM results. The pressed slurry formed after filtration contains a dense structure of quartz, mullite, and kaolinite particles, with traces of iron hydroxide (lepidocrocite) crystallized as goethite. 4. **Discussion**: The filtration process effectively removes coarse particles and most fine fractions, making the filtered water clear and suitable for recirculation. However, the presence of lepidocrocite in the pressed slurry limits its reuse due to glaze staining risks. The study suggests that magnetic separation of lepidocrocite clusters could improve water pretreatment and enable the direct recirculation of pressed slurry. 5. **Conclusions**: The research highlights the importance of proper water treatment in ceramic tile manufacturing to ensure environmental sustainability and reduce waste. The findings provide valuable insights for practitioners in the ceramic industry, suggesting potential applications for the pressed slurry in ecological bricks or plasters.This study investigates the particulate matter dispersion in water used during ceramic tile manufacturing processes, both before and after treatment at water treatment facilities. The research focuses on the differences in water properties and sediment composition between floor and wall tile production. Key findings include: 1. **Water Properties**: Used water from floor and wall tile production is alkaline, with pH values of 10.21 and 10.84, respectively. After filtration, the pH decreases to 9.42, indicating a significant reduction in alkalinity. The water from wall tiles is more turbid due to finer suspensions, while the water from floor tiles has higher electrical conductivity and lower resistivity. 2. **Mineral Constituents**: X-ray diffraction (XRD) and mineralogical optical microscopy (MOM) reveal that both floor and wall tile waters contain similar mineral dispersions, including quartz (5–50 μm), kaolinite (1–30 μm), and mullite (5–125 μm). Glass particles are also present in both samples. 3. **Microstructural Observations**: High-resolution scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) confirm the XRD and MOM results. The pressed slurry formed after filtration contains a dense structure of quartz, mullite, and kaolinite particles, with traces of iron hydroxide (lepidocrocite) crystallized as goethite. 4. **Discussion**: The filtration process effectively removes coarse particles and most fine fractions, making the filtered water clear and suitable for recirculation. However, the presence of lepidocrocite in the pressed slurry limits its reuse due to glaze staining risks. The study suggests that magnetic separation of lepidocrocite clusters could improve water pretreatment and enable the direct recirculation of pressed slurry. 5. **Conclusions**: The research highlights the importance of proper water treatment in ceramic tile manufacturing to ensure environmental sustainability and reduce waste. The findings provide valuable insights for practitioners in the ceramic industry, suggesting potential applications for the pressed slurry in ecological bricks or plasters.