重金属废水资源化回收利用是环境污染控制领域的公认难题，也是利益攸关方积极治理重金属污染的内驱动力。近年来工程实践表明：重金属废水治理与资源化的“卡脖子”问题可聚焦为：络合态重金属释放难、选择性分离差和资源化价值低。围绕上述核心技术难题，本方向以配位键合解构重整、空间匹配强化分离和诱导除杂定向纯化等基础理论研究为抓手，阐明了络合配体多重氧化与金属释放新机制，研发了适应重金属回收利用的深度破络新技术；揭示了重金属空间匹配强化分离新原理，发明了印迹空腔选择性吸附分离新技术；探明了分组除杂-多级分馏纯化新机理，构建了废水中多金属选择性分类回收与纯化新工艺；建成了我国首个废水稳定达标处理与重金属回收利用的示范工程，助力开创“经济高质量发展与生态环境高水平保护”协同推进的重金属废水治理新模式。

        As a recognized problem in the field of environmental pollution control, heavy metal recycle from wastewater has become the internal driving force for stakeholders to control the heavy metal contamination. Recent engineering practice indicates that the critical problems of heavy metal wastewater treatment and resource recovery are the difficulties for release, poor selective separation, and low recycling value of heavy metal complexes. In allusion to these technical problems, we have been focusing on the basic theories of deconstruction and reconstruction of coordination bond, space matching enhanced separation, and induced impurity removal combined oriented purification, thus the new mechanism of multiple oxidation and metal release of complexed ligands was illuminated, and an adaptive technology of deep break for heavy metal recycling was developed. In addition, the new principle of space matching enhanced separation of heavy metal was revealed, and a selective adsorption and separation technique of imprinted cavity was proposed. Besides, the new mechanism of grouped impurity removal combined multistage fractionation purification was verified, and a selective classification and recovery and purification process for polymetallic wastewater was established. Based on these were formed the first demonstration project for the steady standard treatment and heavy metal recycling from wastewater in China, which helps creating the new model of heavy metal wastewater treatment synergistically promoted by "high-quality economic development and high-level ecological environmental protection".