生物海绵铁去除生活污水中氨氮的性能研究

为提高活性污泥对氨氮的处理效果,在生化反应器中加入海绵铁,形成生物海绵铁体系。以模拟生活污水为处理对象,研究了生物海绵铁对生活污水的脱氮效果。结果表明:生物海绵铁法脱氮效果良好,平均脱氮率为97.5%。氨氮浓度和C/N比会影响脱氮效果;污泥性能得到改善。可用于实际生活污水的脱氮处理。

Study on Performance of Biological Sponge Iron in Nitrogen Removal from Domestic Wastewater

For the purpose of enhancing the nitrogen removal efficiency of active sludge, sponge iron was added in biochemical reactor. A new process, biological sponge iron, was put forward. Using simulated domestic wastewater as object, the nitrogen removal capability of the biological sponge iron in domestic wastewater treatment was investigated. The results indicate that the biological sponge iron was effective in denitrification, and the average denitrification rate was 97.5%. The denitrification was effected by ammonia nitrogen concentration and C/N ratio .The sludge property was improved. Biological Sponge Iron could be used in actual sewage denitrification process.