Department of Environmental Health, Flinders Research Centre for Coastal and Catchment Environments, Flinders University, Adelaide, South Australia, Australia.
Water Sci Technol. 2010;61(10):2425-32. doi: 10.2166/wst.2010.708.
The interference of ammonia with the chlorination process is a problem for many reclaimed water treatment plant operators. This paper presents the findings from a series of pilot experiments that investigated the efficacy of high flow rate nitrifying trickling filters (NTFs) for the removal of low concentrations of ammonia (0.5-3.0 mg N L(-1)) from reclaimed wastewater. Results showed that nitrification was impeded by a combination of high organic carbon loads and aquatic snails, which consumed much of the active biomass. With adequate snail control, nitrification rates (0.3-1.1 g NH(4)-N m(-2) d(-1)) equivalent to that of traditional wastewater NTFs were achieved, despite operating under comparably low ammonia feed concentrations and high hydraulic flow rates.
氨对氯化过程的干扰是许多再生水处理厂操作人员面临的一个问题。本文介绍了一系列中试试验的结果，这些试验研究了高流量硝化滴滤器（NTF）对去除再生废水中低浓度氨（0.5-3.0mgN L(-1)）的效果。结果表明，硝化受到高有机碳负荷和消耗大量活性生物量的水生蜗牛的共同阻碍。通过适当的蜗牛控制，尽管在比较低的氨进料浓度和高水力流量下运行，仍可达到相当于传统废水 NTF 的硝化速率（0.3-1.1gNH(4)-N m(-2) d(-1)）。
