改良型Orbal氧化沟工艺对污水中主要污染物去除效率研究

Stuty on Remolval Efficiency of Main Pollutants Using Improved Orbal Oxidation Ditch Process

根据进出水的水质概况,监测改良型Orbal氧化沟工艺对污水中COD_(Cr)、BOD、氨氮、总磷的去除效果,分析污水处理装置总体处理效果。结果表明:污水COD、BOD、氨氮、总氮、总磷平均去除效率分别为68.34%、82.35%、53.64%、24.89%和16.94%,其中总磷的去除效率较低,这是因为厌氧池污泥老化、有机碳源不足、硝酸盐干扰释磷、氧化沟溶解氧控制不准确、存在一定的营养物质。

According to the water quality of incoming and outgoing water, the effect of the improved Orbal oxidation ditch process on the removal of CODCr, BOD, ammonia nitrogen, and total phosphorus in the waste water was monitored and analyzed. The results show that the average removal efficiencies of COD, BOD, ammonia nitrogen, total nitrogen, and total phosphorus were 68.34%, 82.35%, 53.64%, 24.89%, and 16.94%, respectively. The removal efficiency of total phosphorus is low because of the anaerobic tank, sludge aging, lack of organic carbon sources, phosphorus release from nitrate interference, inaccurate control of dissolved oxygen in the oxidation ditch, and presence of certain nutrients.