氨氮废水处理技术发展现状

摘要

结合不同浓度氨氮废水的水质特点，评述了近二三十年来国内外主要的除氮技术，包括折点氯化法、吹脱法、离子交换法、化学沉淀法等物理化学法，以及传统生物处理技术和新型生物处理技术，如厌氧氨氧化、短程硝化反硝化、同时硝化反硝化等，并指出以上处理技术的适用条件及其优缺点和氨氮废水处理技术今后的发展趋势。%Based on the characteristics of different concentrations of ammonia-water wastewater, this paper re⁃views the main physical and chemical treatment technologies at home and abroad for nearly three decades, includ⁃ing break point chlorination, air stripping, selective ion exchange and chemical precipitation. Besides, it discusses the conventional biological denitrogenation process and novel biological denitrogenation process, such as anaero⁃bic ammonia oxidation, short nitrification and denitrification, simultaneous nitrification and denitrification. Finally it points out the application conditions, advantages, disadvantages and the future development trends of treatment technologies.