• 关键词：低C/N比  高效脱氮  改进型生物脱氮工艺  新型生物脱氮技术

• 基金项目：国家自然科学基金(No.50778005);新加坡环境与水工业协会创新发展项目(No.EDBS07/1-53974092);北京市自然科学基金(No.8062006)

• 彭永臻
• 1. 哈尔滨工业大学, 市政环境工程学院, 哈尔滨 150090; 2. 北京工业大学, 北京市水质科学与水环境恢复工程重点实验室, 北京 100022

• 马斌
• 哈尔滨工业大学, 市政环境工程学院, 哈尔滨 150090

• 摘要：针对低C/N比污水传统生物脱氮碳源不足、脱氮效率不高,提出从充分利用碳源和减少生物脱氮碳源需求量两个方面,来实现高效生物脱氮.在充分利用碳源方面,介绍了好氧缺氧分段进水工艺、脉冲式SBR工艺等改进型生物脱氮工艺;在减少生物脱氮碳源需求量方面,介绍了短程硝化反硝化、厌氧氨氧化、完全自养脱氮等新型生物脱氮技术.并对这些技术和工艺的原理、优势、存在的问题以及应用情况进行了简要的分析.

• Abstract：Considering the shortage of organic materials for biological nitrogen removal from wastewater under low C/N ratios, two methods are proposed in order to achieve high efficiency of biological nitrogen removal:.making full use of the carbon source and reducing the requirement of carbon source. To make full use of carbon sources, modified biological nitrogen removal process are introduced, including the anoxic/oxic step feeding process and the pulsed SBRprocess. To reduce the carbon source requirement in biological nitrogen removal, novel biological nitrogen removal processes are introduced, including short-cut nitrification and denitrification, the anaerobic ammonium oxidation (ANAMMOX) process and completely autotrophic nitrogen removal over nitrite (CANON) process. The mechanisms, the advantages, the unsolved problems and the applications of these technologies and processes are analyzed.

• Key words：low C/N ratio  high efficiency nitrogen removal  modified biological nitrogen removal process  novel biological nitrogen removal technologies

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