市政污泥是城镇污水净化过程中产生的有毒有害固体废弃物。通常情况下，市政污泥具有较高含量的挥发份和N元素，中等含量的S元素，以及较低含量的Cl元素。受疫情影响，含Cl消毒剂在公共场所广泛使用，有可能导致污泥Cl含量升高。基于当前市政污泥的这些特点，主流的焚烧处置会产生大量N/S/Cl污染物，处理难度大、成本高。本项目提出一种新颖的污泥处置技术，通过热解耦合化学链燃烧方式，实现污泥热处置过程的焦油/N/S/Cl污染物一体化脱除。本项目以天然铁矿石为本体，制备一系列具有活性金属及外源离子负载的载氧体，通过量子化学模拟、宏观反应动力学过程解构、载氧体多尺度表征、污染物模化物及真实热解气的化学链循环测试、载氧体晶相演化分析等方式，探究载氧体污染物一体化脱除性能的构效关系。本项目的研究有望获得一种基于活性金属-碱（土）金属联合修饰的载氧体优化方法，可用于制备具有良好污染物一体化脱除性能的载氧体。

Sewage sludge is a toxic solid waste generated from wastewater management. In general, sewage sludge has high volatile content, high nitrogen content, a certain amount of sulfur, and low chlorine content. However, disinfectants with chlorine were widely used for the defense to epidemic situation caused by coronavirus-2019, leading to a possible increase of chlorine content in sewage sludge. The incineration of the current sewage sludge will generate a great amount of tar/N/S/Cl pollutants which are of high cost and technical difficulty during the disposal. In this project, a novel technology is proposed for the clean disposal of sewage sludge. The pollutants during thermal disposal of sewage sludge will be removed simultaneously through a combined technology of pyrolysis and chemical looping combustion. The relationship between pollutant-removing performance and structure of iron ore will be investigated through a series of methods, including the simulation of quantum chemistry, the kinetic process of macroscopic reaction, multiple-scale investigation on oxygen carrier, chemical looping test of pollutant models and real pyrolysis gas, evolution analysis of oxygen carrier during chemical looping test, etc. Results of the project are supposed to propose a multiple modification method of oxygen carrier using a combination of reactive/alkali/alkaline-earth metals. This method is available for preparing oxygen carriers with excellent performance of pollutant removal.