随着城市和人口的发展,污泥的产量逐年增加。实现污泥脱水和处置的成本效益已成为一个不可回避的挑战,高效和安全的过程。在这项工作中,首先,从水分分布方面综述了限制污泥脱水的因素,污泥浓度,有机质含量,电负性,絮凝强度,和细胞外聚合物(EPS)。随后,专注于骨架建造者的脱水技术,它的最新进展在机制方面进行了详细说明,评价指标,影响因素,和技术耦合。此外,总结了骨架建设者对污泥处置阶段的影响。最后,展望了污泥脱水和骨架建设者面临的挑战。该综述将为后续有关骨架构建器的实验和实践提供一些理论基础和技术指导。
With the development of cities and population, the production of sludge is increasing annually. It has become an unavoidable challenge to achieve sludge dewatering and disposal by a cost-effective, efficient and safe process. In this work, firstly, the factors limiting sludge dewatering are reviewed in terms of moisture distribution, sludge concentration, organic matter content, electronegativity, floc strength, and extracellular polymers (EPS). Subsequently, focusing on the dewatering technology about the
skeleton builder, the recent progress of it is detailed in terms of mechanism, evaluation indicators, influencing factors, and technology coupling. In addition, the impact of
skeleton builders on the sludge disposal stage is concluded. Finally, the challenges faced by sludge dewatering and
skeleton builders are prospected. This
review will provide some theoretical basis and technical guidance for subsequent experiments and practices regarding
skeleton builders.