摘要
Materials such as cement and composite active admixture were mixed in definite ratio to consolidate sewer sludge, which had been dried and smashed. Two kinds of solidified bodies were designed. A represented the solidified body which had not used any composite active admixture, and B represented the one which used composite active admixture as one of its compositions. The results show that the compressive strength （28 d） of these solidified bodies can reach 30 MPa under the standard maintain condition which could be used as subgrade material. The concentration of heavy metals in solidified body was far less than identification standard for hazardous wastes of China. Heavy metals were stabilized and solidified effectively. The organic matter in these solidified bodies of 56 d was 80 percent less than that in raw sludge. A large quantity of bacteria could also be killed because of the basic condition in solidified body. Scanning electron microscope （SEM） test explained the reason that solidified body B showed better properties in all tests.
象水泥和合成活跃混合那样的材料在明确的比率被混合巩固下水道污泥，它被弄干并且破碎。二种团结的身体被设计。A 代表了没使用任何合成活跃混合的团结的身体，并且 B 代表了把合成活跃混合用作它的作文之一的那。结果证明这些团结的身体的压缩强度(28 d ) 能在标准下面到达 30 MPa 维持能被用作路基材料的状况。在团结的身体的重金属的集中是远的为中国的危险浪费的不到鉴定标准。重金属有效地被稳定并且团结。在 56 d 的这些团结的身体的有机物是 80% 不到那在未加工的污泥。因为基本条件，细菌的大数量能也在团结的身体被打死。扫描电子显微镜(SEM ) 测试解释了那团结的身体 B 在所有测试看了更好的性质的原因。
