【摘要】 为解决城市污水深度处理碳源不足导致脱氮效果不佳的问题，该文制备了具有缓慢释碳功能的薯渣固体缓释碳源SCPR。释碳试验与强化反硝化生物滤池（DNBF）脱氮试验表明，SCPR最大有机物释放量为129.87 mg/（L·g），碳源释放过程满足二级动力学，在水力负荷为0.1 m³/（m²·h）、SCPR与陶粒配比为1∶6、进水NO₃^--N平均浓度为50.09 mg/L时，DNBF中NO₃^--N、NO₂^--N与TN去除率分别为75.53%、86.21%与74.98%，出水 COD平均浓度为 25.24 mg/L,SCPR作用下DNBF反硝化反应级数介于零级与一级之间。SCPR具有良好的释碳与强化DNBF脱氮效果的能力，可作为污水深度脱氮处理的碳源。更多还原

【Abstract】 To solve the problem of low nitrogen removal efficiency due to insufficient carbon source for advanced treatment of municipal wastewater, a sustained-release carbon source SCPR with slow-releasing of organic matter was prepared.Carbon release and enhanced denitrifying biological filter （DNBF） denitrification test showed that the maximum amount of organic matter released from SCPR was 129.87 mg/（L·g）, and the carbon-releasing process follows second-order kinetic equation. When the hydraulic load was 0.1 m³/（m²·h）, the ratio of SCPR to ceramsite was 1∶6, and the average concentration of NO₃^--N in the influent was 50.09 mg/L, the removal rates of NO₃^--N, NO₂^--N and TN in DNBF were 75.53%, 86.21% and 74.98%, respectively, and the average concentration of COD in effluent was 25.24 mg/L. The kinetic reaction order of DNBF denitrification is between zero and first order under the action of SCPR. The sustained -carbon source of SCPR had a high release of organic matter and enhance the denitrification effect of DNBF, so it can be used as a carbon source for advanced denitrification treatment of wastewater.更多还原