Sabaliunas Darius, Webb Simon F, Hauk Armin, Jacob Martin, Eckhoff William S
Procter & Gamble Technical Centers Ltd., Rusham Park, Whitehall Lane, Egham, Surrey, TW20 9NW, UK.
Water Res. 2003 Jul;37(13):3145-54. doi: 10.1016/S0043-1354(03)00164-7.
The concentrations and removal rate of Triclosan, an antibacterial ingredient in consumer products, were measured at advanced trickling filter (TF) and activated sludge (AS) wastewater treatment plants (WWTPs) in the River Aire basin in the UK in September 2000. Additionally, the in-stream removal of Triclosan was measured directly in Mag Brook, the stream receiving the treated effluent from the TF plant, using a fluorescent dye tracer to determine the water plug travel times. The in-stream removal of the dissolved and un-ionized (i.e. bioavailable) fraction of the compound was measured using semipermeable membrane devices (SPMDs) deployed at various distances downstream from the WWTP discharge point. The estimated removal rates were used in the GREAT-ER (Geography-Referenced Regional Exposure Assessment Tool for European Rivers) model to predict the site-specific distribution of Triclosan concentrations in the Aire basin as well as to calculate regional concentrations. High WWTP (approximately 95%) and in-stream (0.21-0.33 h-1) removal rates of Triclosan in Mag Brook confirm that this chemical is rapidly eliminated from the aquatic environment.
2000年9月，在英国艾尔河流域的高级滴滤池（TF）和活性污泥（AS）污水处理厂（WWTPs）中，对消费品中的抗菌成分三氯生的浓度和去除率进行了测量。此外，使用荧光染料示踪剂来确定水塞的流动时间，从而直接在接收TF厂处理后废水的马格溪中测量三氯生的河道内去除情况。使用部署在污水处理厂排放点下游不同距离处的半透膜装置（SPMDs），测量该化合物溶解态和非离子化（即可生物利用）部分的河道内去除情况。估计的去除率被用于GREAT-ER（欧洲河流地理参考区域暴露评估工具）模型，以预测艾尔河流域三氯生浓度的特定地点分布，并计算区域浓度。马格溪中三氯生的污水处理厂去除率很高（约95%），河道内去除率为0.21 - 0.33 h-1，这证实了这种化学物质能迅速从水生环境中消除。
