Abstract: The special features of sub-critical and supercritical water are introduced. An overview of the applications of sub-critical and supercritical hydrothermal treatment for disposing organic wastes in the recent years is presented，including production of organic acid by oxidation and hydrolysis，and degradation of polymers and cellulosic wastes. The progress of research on hydrogen production from biomass by sub-critical and supercritical hydrothermal treatment，especially the catalytic gasification by carbon，alkali，and metal are summarized. The prospect of the sub-critical and supercritical hydrothermal treatment is presented.
supercritical and sub-critical water；hydrothermal treatment；organic wastes

摘要： 介绍了超（亚）临界水的特殊性质，综述了超（亚）临界水热法有机废物氧化和水解制有机酸、聚合物降解以及纤维性有机废物降解的应用进展，着重评述了超（亚）临界水热法生物质气化尤其是炭、碱和金属3种催化剂催化气化制取H2的发展现状，并展望了超（亚）临界水热法的发展前景。