【摘要】 生物砂滤池去除NH4+-N的效果优于普通砂滤池,是一种经济、有效的给水处理技术。以邯郸市滏阳河微污染原水为对象,研究了温度、NH4+-N浓度、CODMn浓度对生物砂滤池去除水中NH4+-N的影响。结果表明:水温是影响生物砂滤池去除NH4+-N效果的主要因素,水温越高则对NH4+-N的去除效果越好。在NH4+-N浓度不高、水温为常温(或较高)条件下,原水NH4+-N浓度对NH4+-N的去除影响较为显著;原水NH4+-N值愈高,其去除率愈高,原水NH4+-N浓度变化对NH4+-N去除效果的影响越小。在水温相同的情况下,当原水CODMn值和NH4+-N值均较大时,CODMn值对去除NH4+-N影响显著。更多还原

【Abstract】 Biological sand filter is an economical and effective process and the NH⁺₄-N removal effect is better than that of general sand filter.Influencing factors such as temperature,concentration of NH⁺₄-N and COD_Mn of the raw water on NH⁺₄-N removal from micro-polluted water of Fuyang River were studied.The results show that temperature is the most important factor,the higher the temperature of the raw water,the higher the removal rate of NH⁺₄-N.The raw water NH⁺₄-N concentration can affect its removal rate apparently under the condition of normal NH⁺₄-N concentration and normal or high temperature of the water.The higher the NH⁺₄-N concentration,the higher the removal rate,but the change of concentration has less influence on removal efficiency.At the same temperature,when the concentration of COD_Mn and NH⁺₄-N are both higher,COD_Mn concentration affects NH⁺₄-N removal apparently.更多还原