畜禽养殖废水处理技术探讨

Study on Treatment of Wastewater from Livestock and Poultry Farms

介绍了畜禽养殖废水有机物和氨氮含量高、可生化性好等特点及其污染现状,从物化法和生物法两个方面综述了近年来国内外有关畜禽养殖废水处理技术的研究进展,并分析了现有处理方法的优缺点和存在的问题。在此基础上提出了现阶段厌氧(缺氧)-好氧组合工艺技术是处理较大规模畜禽养殖废水的主要方法,并建议畜禽养殖废水的治理应从"防"、"治"两个方面入手。

The features of the wastewater from livestock and poultry farms such as high contents of organic matters and ammonia nitrogen and good biodegradability, as well as the pollution situation were introduced. The progresses of treatment technologies of the wastewater home and abroad in recent years including physic-chemical process and biological process were reviewed. With analysis of advantages and disadvantages of the present process, it was proposed that a combined process of anaerobic/anoxic- aerobic process is the main process to treat wastewater from large scale livestock and poultry farms. It was suggested that the waste management in animal farms should consider two aspects, prevention and treatment.