基于铁碳耦合填料高效催化的污水处理研究

Study on wastewater treatment based on high efficiency catalysis of iron carbon coupling filler

以铁碳耦合填料为载体,结合AO-MBR工艺的一体化设备,探究不同填料含量、pH和HRT、进水负荷以及溶解氧对浓度等对污水中NO^(-)_(3)-N及有机物去除的影响。研究结果表明,进水负荷及pH在一定的范围内波动对此工艺处理效果不会产生显著影响;HRT越小,工艺处理污水的效果越差;影响本工艺的关键参数为溶解氧及铁碳耦合填料含量,在缺氧池溶解氧低于0.2 mg/L,填料填充量为1 m^(3),停留时间大于6 h,工艺的出水水质指标(COD、氨氮、TP)可稳定达到《地表表水环境质量标准》(GB 3838-2002)中的Ⅳ类标准,出水TN满足《城镇污水处理厂污染物排放标准》(GB 18918-2002)中的一级A标准。

In this study,the effects of filling amount,pH,HRT,influent load and dissolved oxygen concentration on the removal of NO^(-)_(3)-N and organic matter in wastewater were investigated by using iron matrix carbon coupling filler as carrier and AO-MBR integrated equipment.The results show that:the fluctuation of influent load and pH in a certain range will not have a significant impact on the treatment effect of the process;the smaller the HRT,the worse the treatment effect of the process.The key parameters affecting the process are dissolved oxygen and iron matrix carbon coupling filler content.In the anoxic pool,dissolved oxygen is less than 0.2 mg/L,the amount of filling is 1 m^(3)and residence time is more than 6 hours.The effluent quality index(COD,ammonia nitrogen,TP)of the process can steadily meet ClassⅣof the Surface water environmental quality standard(GB 3838-2002).The effluent TN meets the grade A standard of Discharge of pollutants from municipal wastewater treatment plants(GB 18918-2002).