【摘要】 针对焦化废水组分复杂、生物毒性显著，制约生态环境及煤化工产业可持续发展的问题，基于资源化利用理念，以煤气化渣（CGS）为前体，采用酸浸-KOH活化协同工艺制备了一系列高性能多孔炭（HPC），并用于焦化废水处理。结果表明，优化制备的样品CK2-850-120孔隙结构显著改善，比表面积达389m~2/g，较原料提升158%。在80℃、40min、40g/L的最佳吸附条件下，该材料对焦化废水表现出优异的处理性能：COD去除率达58.52%，除油效率高达98.88%。吸附等温线与动力学分析揭示了其除油过程符合物理-化学协同吸附机制。GCMS分析进一步证实，该材料同时对苯酚、异喹啉等特征污染物也具有显著去除效果，处理后仅检出微量2,4-二叔丁基苯酚。本研究不仅实现了工业固废CGS的高值化利用，同时为焦化废水深度处理提供了新型高效吸附材料与技术方案。更多还原

【Abstract】 This study addressed the challenges posed by the complex composition and significant biological toxicity of coking residual ammonia water, which hindered both the ecological environment and the sustainable development of the coal chemical industry. Based on the concept of resource utilization, a series of high-performance porous carbons(HPC) were prepared using coal gasification slag(CGS) as a precursor through a synergistic process of acid leaching and KOH activation, and applied to the treatment of coking residual ammonia water. The results indicated that the optimized sample, CK2-850-120, exhibited a significantly improved porous structure with a surface area of 389m~2/g, a 158% increase compared to the raw material. Under the optimal adsorption conditions(80℃, 40 min, 40g/L), the material demonstrated excellent treatment performance for residual ammonia water from coking with a COD removal rate of 58.52% and an oil removal efficiency of 98.88%. Adsorption isotherms and kinetic analysis revealed that the oil removal process followed a physical-chemical synergistic adsorption mechanism. GC-MS analysis further confirmed that the material also exhibited remarkable removal efficiency for characteristic pollutants such as phenol and isoquinoline with only trace amounts of 2,4-ditert-butylphenol detected after treatment. This study not only achieved high-value utilization of industrial solid waste CGS but also provided a novel, efficient adsorption material and technological solution for the deep treatment of coking residual ammonia water.更多还原