With the advancement of industrialization and urbanization, the sharp increase in solid waste has led to severe environmental challenges, making its resource utilization a prominent research focus. In this study, sludge, gasification slag, shale, glass wool, and waste alkali solution were selected as raw materials to prepare porous ceramic materials through processes such as drying, mixing, ball milling, molding, and high-temperature sintering. The effects of material ratios, sintering temperature, and sintering time on the performance of the porous ceramics were systematically investigated. Analytical techniques such as X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to examine the phase composition and microstructure. The results show that when the ratio of sludge, gasification slag, glass wool, shale, and waste alkali solution is 5:2:1:1:1, the sintering temperature is 1100 °C, and the holding time is 4 hours, the prepared porous ceramics exhibit excellent performance. The samples demonstrated favorable properties such as apparent porosity and flexural strength, with stable phase composition and well-developed microstructure. This research opens a new pathway for the resource utilization of solid waste, offering significant environmental and economic benefits, and holds great potential to promote development in related fields.

Keywords: Solid waste, Resource utilization, Porous ceramics, Material characterization.