Prechlorination is the most common strategy for zebra and quagga mussel control in drinking water treatment plant intakes in the Great Lakes region. Although effective and inexpensive, chlorine can form regulated disinfection byproducts. Two potential alternatives to prechlorination were evaluated for mussel control: peracetic acid (PAA) and EarthTec QZ, a copper-based product. Pilot-scale experiments were conducted to test EarthTec QZ for veliger control and to evaluate the efficiency of PAA and EarthTec QZ for adult mussel control. EarthTec QZ doses of 30, 60, and 120 μg/L as copper ions demonstrated dose-dependent veliger control at 12 °C. PAA doses of 5, 10, and 25 mg/L were effective for adult mussel control at the low water temperatures tested (4 °C). Results from this study indicate that PAA and EarthTec QZ may be an alternative to prechlorination.

在大湖区饮用水处理厂的进水口中，预氯化是控制斑马和斑贻贝的最常见策略。氯虽然有效且便宜，但可以形成受调节的消毒副产物。对于贻贝控制，评估了预氯化的两种可能的替代方法：过乙酸（PAA）和铜基产品EarthTec QZ。进行了中试实验，以测试EarthTec QZ的飞虫控制，并评估了PAA和EarthTec QZ的成年贻贝控制效率。EarthTec QZ剂量为30、60和120μg/ L（铜离子）证明了在12°C时剂量依赖的veliger控制。在测试的低水温（4°C）下，PAA剂量为5、10和25 mg / L对成年贻贝控制有效。