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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... 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. 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。
general sand filter
普通砂滤池
Biological sand filter is an economical and effective process and the NH~+_4-N removal effect is better than that of general sand filter. 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。 短句来源 相似匹配句对
On Sand 论砂 短句来源 In general,L. L. 短句来源 general; (2)总论; 短句来源 General Situation of Sand Moulding Process Development and Some Suggestions 砂型工艺的发展概况和若干建议 短句来源 Sand and Foam 沙子和泡沫 短句来源 
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