Bester Kai, Klasmeier Jörg, Kupper Thomas
Institute of Environmental Analytical Chemistry, University Duisburg-Essen, Universitätsstr. 15, 45141 Essen, Germany.
Chemosphere. 2008 May;71(11):2003-10. doi: 10.1016/j.chemosphere.2008.02.004. Epub 2008 Mar 21.
The fate and mass flows of OTNE ([1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethylnaphthalen-2yl]ethan-1-one) which is commercialized as Iso-E-Super were studied in three large scale sewage treatment plants (STPs) in detail. The results are compared to 14 smaller ones located in Germany and Switzerland. OTNE inflow concentrations ranged from 4000 to 13,000 ngl(-1) while the effluent concentrations ranged from 500 to 6,900 ngl(-1). It is eliminated from the waste water with 56-64% during waste water treatment. High OTNE concentrations in sewage sludge showed that the elimination was mainly driven by sorption to sludge. This complies with major elimination in the first settling basins (primary settling tanks) while it was removed to a lesser extent in the aeration basin of the activated sludge treatment or in successive biofilters. The mass flows of OTNE in the influent of the German STPs were between 0.9 and 1.9 g per inhabitant and year. In the annual effluents mass flows of OTNE ranged between 0.2 and 0.8 g per inhabitant which complies with data measured in 13 smaller STPs from Switzerland. The similarity of data suggests that the observed mass flow data might be extrapolated to other European regions.
对作为异-E-超级（Iso-E-Super）商业化的OTNE（[1,2,3,4,5,6,7,8-八氢-2,3,8,8-四甲基萘-2-基]乙烷-1-酮）在三家大型污水处理厂（STP）中的归宿和质量流进行了详细研究。将结果与位于德国和瑞士的14家较小的污水处理厂的数据进行了比较。OTNE的流入浓度范围为4000至13000 ng l⁻¹，而流出浓度范围为500至6900 ng l⁻¹。在废水处理过程中，它从废水中被去除了56 - 64%。污水污泥中高浓度的OTNE表明，去除主要是由其吸附到污泥上驱动的。这与在第一个沉淀池（初沉池）中的主要去除情况相符，而在活性污泥处理的曝气池或后续生物滤池中去除程度较小。德国污水处理厂进水的OTNE质量流为每人每年0.9至1.9克。在年度出水中，OTNE的质量流范围为每人每年0.2至0.8克，这与瑞士13家较小污水处理厂测得的数据相符。数据的相似性表明，观察到的质量流数据可能可以外推到其他欧洲地区。
