强化氧化沟工艺对污水的脱氮效果

Enhancement of Nitrogen Removal for Wastewater in Oxidation Ditch Process

对氧化沟系统的概况、设计参数、进出水水质和存在的问题进行了分析,并对氧化沟进行改造,通过补充碳源、增加内回流、调整曝气、增加推流器等措施,提升了氧化沟生物脱氮效果,出水总氮稳定满足一级A污水排放标准(GB18918-2002)的要求。

Oxidation ditch process has been widely used in wastewater treatment plant. Nitrogen is removed from wastewater by microorganisms in the oxidation ditch. The designed parameters, the quality of wastewater and the problems of the oxidation ditch process were analyzed. Some measures were employed in oxidation ditch process, which enhanced the nitrogen removal for wastewater. Glucose solution as the carbon source was added to the oxidation ditch system. Some equipment such as reflux pump, aerator, were applied in the oxidation ditch system.