Kröpfelová Lenka, Vymazal Jan, Svehla Jaroslav, Stíchová Jana
ENKI ops, Trebon, Czech Republic.
Environ Pollut. 2009 Apr;157(4):1186-94. doi: 10.1016/j.envpol.2008.12.003. Epub 2009 Jan 4.
Between March 2006 and June 2008 removal of 34 trace elements was measured on a monthly basis at three horizontal-flow constructed wetlands in the Czech Republic designed to treat municipal wastewater. In general, the results indicated a very wide range of removal efficiencies among studied elements. The highest degree of removal (average of 90%) was found for aluminum. High average removal was also recorded for zinc (78%). Elements removed in the range of 50-75% were uranium, antimony, copper, lead, molybdenum, chromium, barium, iron and gallium. Removal of cadmium, tin, mercury, silver, selenium and nickel varied between 25 and 50%. Low retention (0-25%) was observed for vanadium, lithium, boron, cobalt and strontium. There were two elements (manganese and arsenic) for which average outflow concentrations were higher compared to inflow concentrations. Reduced manganese compounds are very soluble and therefore they are washed out under anaerobic conditions.
2006年3月至2008年6月期间，在捷克共和国为处理城市废水而设计的三个水平流人工湿地中，每月测量34种微量元素的去除情况。总体而言，结果表明在所研究的元素中，去除效率范围非常广泛。铝的去除率最高（平均为90%）。锌的平均去除率也很高（78%）。去除率在50%-75%之间的元素有铀、锑、铜、铅、钼、铬、钡、铁和镓。镉、锡、汞、银、硒和镍的去除率在25%-50%之间。钒、锂、硼、钴和锶的保留率较低（0%-25%）。有两种元素（锰和砷），其平均流出浓度高于流入浓度。还原态锰化合物非常易溶，因此在厌氧条件下会被冲走。
