为了更好地评价含煤生活污泥的浓缩脱水性能,研究了不同矿区含煤生活污泥的比阻(SRF)、毛细吸水时间(CST)、含固率(DS)等指标及其相互关系。结果表明,聚丙烯酰胺(PAM)调理前与调理后含煤生活污泥的SRF、CST与DS之间存在正相关性,SRF与CST之间存在显著的正相关性(R2≥0.9),CST可以作为评价矿区含煤生活污水污泥浓缩脱水性能的指标,污泥干重0.8%的PAM调理即可取得较好效果;采用含煤生活污泥的回归曲线,通过CST对煤矿矿井水污泥和城镇生活污水污泥的SRF进行预测检验,偏离度均大于20%,说明含煤污泥与其他污泥浓缩脱水性能存在较大不同。 In order to better evaluate the dewatering performance of coal-bearing domestic sludge, SRF, CST and DS of different coal mines were studied, and their correlations were also studied . The results showed that there was a positive correlation between SRF, CST and DS before and after the conditioning of polyacrylamide (PAM), there was a significant positive correlation between SRF and CST (R2≥0.9), CST Can be used as an index to evaluate the concentration and dewatering performance of coal-bearing sewage sludge in the mining area. The PAM conditioning with a sludge weight of 0.8% can achieve better results. By using the regression curve of the coal-containing sludge, And urban domestic sewage sludge SRF prediction test, the deviation of more than 20%, indicating that coal-bearing sludge and other sludge dewatering performance there is a big difference.