【摘要】 制革废水有机物浓度高,含硫、铬等有害离子,而且氨氮含量高,高浓度氨氮严重影响了废水的达标排放。本文对国内外制革废水氨氮处理的研究进展进行了综述,介绍了制革废水中氨氮的来源及常见的减少废水中氨氮的方法,主要包括物理法、物理化学法和生物法三大类。分析了制革废水氨氮处理工艺中存在的主要问题,提出了相关的解决方法。更多还原

【Abstract】 The characteristics of tannery wastewater are the high level of contamination of organic substances and poisonous elements like Cr and S, and high concentration of ammonium seriously affects the effluent to meet discharge standand. The development of study on treatment of tannery wastewater is introduced and commented in this essay. It consists of a few aspects including the source of ammonia in tannery wastewater and the available choices of process for eliminating the ammonia. The main technologies are physical and chem-physical and biological treatment.And the ammonia-nitrogen removal mechanisms and some problems were also introduced.Finally some related solutions were put forward.更多还原