许多作者记录了冲洗对水质的积极影响。欧贝罗伊 （1994）在一项关于埃德蒙顿水网的研究中发现，氯 通过冲洗，残余物和浑浊度水平得到了改善，其益处持续了一段时间 到两年。另外两位作者（Kuehn等人，2001年；Cossins等人，1999年）发现了较低的死亡率 UDF后网络中的浊度水平。大肠菌群阳性发作也被排除在外 根据Antoun等人（1997年）的说法，在贝尔沃堡的UDF后发现减少。 同一作者在弗吉尼亚州和北卡罗来纳州进行的另一项研究得出了结论 同样的结论（Antoun等人，1999年）。 虽然人们经常描述UDF的好处，但并没有广泛的研究 分析冲洗的潜在不利短期影响，原因是冲洗不完整 在程序结束时清除松散沉积物。本研究的目的是 确定冲洗对水质的短期（1天到1周）影响。 为了解决这个问题，在该地区开展了三次单向冲洗活动 2001年5月至2002年5月，Jonquiere（加拿大魁北克省）。UDF的条件是 以1至2 m/s的速度和5 NTU浊度的闭合标准为特征。 在试验前、试验后不久（24小时）和试验后一周采集水质样本 冲洗并分析参数，包括:浊度、余氯、总铁、总大肠菌群、总活菌数、， 总直接计数和异养平板计数。共有七个采样点被发现 本分析选择了两个:两个在工厂（作为进水控制）；还有五个 选定的网站。对每个参数总共进行了20次分析。水质 将冲洗现场的数据与工厂的样本进行比较，以便 忽略可归因于分布式水质的变化。包括7个参考文献、表格和图表。

Many authors have documented the positive effects of flushing on water quality. Oberoi (1994), in a study on the Edmonton water network, found that chlorine residuals and turbidity levels were improved by flushing and the benefits remained for up to two years. Two other authors (Kuehn et al., 2001; Cossins et al., 1999) found lower turbidity levels in the network following UDF. Coliform positive episodes were also found to be reduced after UDF in Fort Belvoir, according to Antoun et al. (1997). Another study conducted by the same authors in Virginia and North Carolina came to the same conclusions (Antoun et al., 1999). Although the benefits of UDF have been often described, there has not been extensive analysis of the potential adverse short term effects of flushing, due to the incomplete removal of loose deposits at the end of the procedure. The objective of this study was to identify the short term (1 day to 1 week) effects of flushing on water quality. To address this issue, three unidirectional flushing campaigns were performed in Jonquiere (Quebec, Canada) from May 2001 to May 2002. UDF conditions were characterized by velocities of 1 to 2 m/s and a closure criterion of 5 NTU turbidity. Water quality samples were collected before, shortly after (24 hours) and one week after flushing and analyzed for parameters that included: turbidity, chlorine residual, total iron, total coliforms, total viable counts, total direct counts and heterotrophic plate counts. Seven sampling locations in total were selected for this analysis: two at the plants (as a control for influent); and five in the selected sites. A total of 20 analyses were performed for each parameter. Water quality data from the flushing sites were compared to samples from the plants in order to disregard variations attributable to distributed water quality. Includes 7 references, tables, figure.