砂滤池去除氨氮和有机物随季节性的变化规律

Seasonal variation regularity of ammonia and organic removal by sand filter

以南方地区某水厂砂滤池为例,研究了石英砂滤料去除氨氮和有机物效果随季节性的变化规律。结果表明,在春、夏和秋季石英砂滤料均能稳定有效地去除氨氮,在冬季石英砂滤料对氨氮的去除效果不稳定,待滤水氨氮高于1.0 mg/L时,出水氨氮含量5次测量结果均高于0.5mg/L;季节性变化对CODMn的去除效果影响较大,在秋、冬季石英砂滤料对CODMn的去除效果较春、夏季差;CODMn的去除效果不受氨氮浓度的影响。

Taking a sand filter of waterworks in southern area as an example, the seasonal variation regularity of ammonia and organic removal by quartz sand filter was investigated. The results indicated that quartz sand filter could remove ammonia effectively in spring, summer and autumn, but was unstable removal effect on ammonia in winter. When the concentration of inflow ammonia was higher than 1.0 mg/L, the concentration of outflow ammonia was higher than 0.5 mg/L by five measurements. There was a significant effect on COD_Mn removal by seasonal variation. The removal effect of quartz sand filter on COD_Mn was better in spring and summer compare with in autumn and winter. The removal effect of COD_Mn was not influenced by the concentration of ammonia.