Abstract:

Owing to the disadvantage of the treatment of stable micro-polluted ground water by the conventional water purification technology, the contrast experiment between granular activated carbon (GAC) -sand filtration and sand filtration has carried through. The results indicate that the two-layer GAC-guartz sand filteration has favorably enhanced filtration efficiency. The removal rates of turbidity, CODMn. ammonia-nitrogen, nitrite-nitrogen, and UV254 are 95.8%, 49.7%, 53.3%, 52.3% and 67.7% respectively。Compared with single-layer sand filtration, the rates have raised 0.5%, 9.9%, 13.3%, 30.8%, 6.2% respectively. The treatment load of filtration is enhanced, and the chemical safety of the filtered effluent water is improved.

Key words: enhanced filtration, stable micro-polluted ground water, granular activated carbon

摘要：

针对常规净水工艺处理稳定性微污染地表水的不足，进行了炭砂滤池与砂滤池对比试验研究。结果表明，活性炭-石英砂双层滤料具有良好的强化过滤效果，对稳定性微污染地表水中的浊度、CODMn、氨氮、亚硝酸盐氮、UV254的去除率分别可达到95.8%、49.7%、53.3%、52.3%、67.7%，比单层石英砂过滤提高了0.5%、9.9%、13.3%、30.8%、6.2%。增强了滤池的处理负荷，提高了过滤出水的化学安全性。

关键词: 强化过滤, 稳定性微污染地表水, 颗粒活性炭

CLC Number: 

• TU991.2