Several typical sludge treatment facilities in China, representing anaerobic digestion, composting, co-combustion, thermal drying-incineration, and cement production, respectively, are selected to carry out the inventory. Data are mainly taken from the site-specific measurement, either by field survey or by operation report. Sludge characteristics are based on the average values of the sites investigated. When applying this data within a Life Cycle Assessment framework, users should ensure that the functional unit of one ton of dry sludge (1 t-DS) is consistently used throughout their analysis to maintain accuracy. Attention should be paid to any potential differences in sludge characteristics specific to the region or the processing facility in question. Additionally, users must consider any environmental impacts associated with the transportation of sludge to the cement plant, as well as the emissions resulting from the co-processing of sludge in the cement manufacturing process.