This study investigates the disposal of textile sludge via laboratory and field tests while protecting the eco-environment. Solidification/stabilization (S/S) technology and skeleton construction method are introduced to investigate the application of S/S sludge for subgrade material. S/S is to enhance the sludge strength and stabilize the metal(loid)s and hazardous organics in the textile sludge. Skeleton construction method aims to decrease the liquid-solid ratio in mixture to reduce the binder dosage and save binder cost. In the laboratory, binders and skeleton material are implemented to investigate the differences in unconfined compressive strength (UCS) to explore the optimal mixture. Results illustrate that UCS of binder-sludge is below 100 kPa and enhanced more than 400 kPa after adding gypsum and skeleton material. Skeleton soil material with high plasticity index and low moisture content improves UCS significantly. Scanning electron microscopy test shows the physical microstructure of sludge is greatly improved for the particular space grid structure formed by the particles and cementitious products. The leaching test shows the metal(loid)s and organics in leachate are decreased after S/S treatment and below the standard value. Finally, the textile sludge was disposed for subgrade via the technology. The strength and leaching results of field tests are in good agreement with the laboratory results. The bearing capacity of the practical subgrade meets the design requirements.

中文翻译：

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用作路基的污泥的固化/稳定化：粘合剂和骨架材料的使用

这项研究通过实验室和现场测试来研究纺织品污泥的处置，同时保护了生态环境。介绍了凝固稳定化技术和骨架构造方法，探讨了污泥在路基材料中的应用。S / S是为了提高污泥强度并稳定纺织污泥中的金属（类）和有害有机物。骨架构造方法旨在降低混合物中的液固比，以减少粘合剂用量并节省粘合剂成本。在实验室中，使用粘合剂和骨架材料来研究无侧限抗压强度（UCS）的差异，以探索最佳混合物。结果表明，添加石膏和骨架材料后，黏性污泥的UCS低于100 kPa，增强到400 kPa以上。具有高可塑性指数和低水分含量的骨架土壤材料显着改善了UCS。扫描电子显微镜测试表明，对于由颗粒和胶凝产物形成的特定空间网格结构，污泥的物理微观结构得到了极大的改善。浸出试验表明，渗滤液经S / S处理后，金属（金属）和有机物含量降低，低于标准值。最后，通过该技术将纺织品污泥处置为路基。现场测试的强度和浸出结果与实验室结果非常吻合。实际路基的承载力满足设计要求。扫描电子显微镜测试表明，对于由颗粒和胶凝产物形成的特定空间网格结构，污泥的物理微观结构得到了极大的改善。浸出试验表明，渗滤液经S / S处理后，金属（金属）和有机物含量降低，低于标准值。最后，通过该技术将纺织品污泥处置为路基。现场测试的强度和浸出结果与实验室结果非常吻合。实际路基的承载力满足设计要求。扫描电子显微镜测试表明，对于由颗粒和胶凝产物形成的特定空间网格结构，污泥的物理微观结构得到了极大的改善。浸出试验表明，渗滤液经S / S处理后，金属（金属）和有机物含量降低，低于标准值。最后，通过该技术将纺织品污泥处置为路基。现场测试的强度和浸出结果与实验室结果非常吻合。实际路基的承载力满足设计要求。现场测试的强度和浸出结果与实验室结果非常吻合。实际路基的承载力满足设计要求。现场测试的强度和浸出结果与实验室结果非常吻合。实际路基的承载力满足设计要求。