Abstract: In this paper,the research background,general idea,main contents,technology roadmap and expected outcomes of a National Key Research and Development Project "Key technologies study and application demonstration of near-zero-liquid-discharge and resource recovery of coal chemical industry wastewater" are briefly introduced. Hopefully,through this project,the common key technologies with "4-high"(high pollutant removal,high water recycling,high resource recovery and high technical stability)and "2-low"(low treatment cost,low investment cost)features will be established,the whole chain technology innovation system related to treatment,reclamation and resource recovery of coal chemical industry wastewater will be constructed,and the technology framework for the optimal combination of long-process-flow and short-process-flow treatment will be formed.

摘要： 介绍了国家重点研发计划项目“煤化工废水近零排放与资源化关键技术研究与应用示范”的研究背景、总体研究思路、主要研究内容、技术路线与创新点、预期成果等。建立起具“四高”（污染物去除率高、水回用率高、资源利用率高、工艺稳定性高）和“两低”（处理成本低、投资成本低）特点的煤转化废水处理、回用和资源化共性关键技术，构建出煤转化废水处理、回用和资源化全链条技术创新体系，形成煤转化废水长程处理与短程处理优化组合的新技术框架。