二次资源的有效利用和环境污染的防治逐渐成为关注焦点。作为一种潜在的二次资源，铝灰具有丰富的储量和利用潜力，其资源化利用备受关注。制备水处理混凝剂，不仅有利于节约资源、降低成本，还能有效解决铝灰无害处理的难题。总结利用铝灰制备铝系混凝剂的重要原料（铝酸钙）以及5种铝灰基混凝剂（硫酸铝、聚硫酸铝、聚硫氯化铝、聚硫酸铝铁和聚氯化铝）的特点、制备方法和研究进展，分析了铝灰基混凝剂生产的经济效益。发现铝灰基混凝剂的规模化应用仍面临一些挑战，需从提高产品核心竞争力和填补相关政策的空白入手，以实现水处理行业和铝工业的高质量、绿色和可持续发展，并带来显著的经济和环境效益。

There has been an increasing focus on the effective utilization of secondary resources and the prevention and mitigation of environmental pollution. Aluminum dross, recognized as a potential secondary resource due to its abundant reserves, has garnered significant attention for its resource utilization potential. The utilization of aluminum dross in the production of water treatment coagulants, through rational resource allocation, not only facilitates resource conservation and cost reduction, but also addresses the challenge of harmless aluminum dross treatment. The paper summarized the important raw material (calcium aluminate) and five types of aluminum ash-based coagulants (aluminum sulfate, polyaluminum sulfate, polyaluminum chloride, polyaluminum ferric sulfate, and polyaluminum chloride) used in the preparation of aluminum-based coagulants, along with their characteristics, preparation methods, and research progress. Furthermore, challenges were highlighted regarding the large-scale application of aluminumdross-based coagulants, necessitating a strategic approach focused on enhancing product competitiveness and addressing policy gaps. This aims to achieve high-quality, environmentally friendly, and sustainable development in the water treatment and aluminum industries, resulting in significant economic and environmental benefits.

X703.5

国家自然科学基金（52370161）