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首页> 外文会议>Conjunctive use of water resources: Aquifer storage and recovery >AQUIFER STORAGE RECOVERY AT MANNHEIM, ONTARIO
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AQUIFER STORAGE RECOVERY AT MANNHEIM, ONTARIO

机译：安大略省曼海姆的含水层存储恢复

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In 1987 the Regional Municipality of Waterloo completed a four stage Master Water Supply Study (MWSS) to establish a long term (50 years) water supply for the Cities of Kitchener, Waterloo and Cambridge, Ontario. The MWSS recommended implementation of the Mannheim Artificial Recharge Scheme. In 1992, the Region completed the first phase of the project, which involved construction of a raw water supply pipeline from the Grand River and a 72,800 m3/day (16 MIgd) water treatment plant near Mannheim. Subsequent phases, which included field testing of alternate recharge systems, were put on hold in 1991 pending completion of the Long Term Water Strategy (LTWS) . The LTWS was intended to review the long term water supply options for the Region including the use of new technologies for aquifer recharge.rnEvaluations undertaken during the LTWS determined that aquifer recharge was feasible at Mannheim, although it was recommended that the system be re-designed to include Aquifer Storage Recovery (ASR) wells. Using ASR wells, the Region has the opportunity of storing significant quantities of treated surface water beneath the Mannheim treatment plant within an unconfined sand and gravel aquifer and a deep confined limestone aquifer. An ASR well was constructed in the unconfined aquifer. A series of recharge, storage and recovery cycles commenced in April, 1997 and will continue for up to one year. Initial test data indicates the ASR well will be capable of recharging and recovering treated water at rates greater than 4546 m3/day (1 MIgd). If the testing program confirms the feasibility of ASR at Mannheim, the Region may realize significant cost savings compared to conventional alternatives such as expansion of water treatment, storage, or transmission facilities.
机译：1987年，滑铁卢地区自治市完成了一项四阶段的总供水研究（MWSS），以为滑铁卢的基奇纳市和安大略省的剑桥市建立长期（50年）供水。 MWSS建议实施曼海姆人工补给计划。 1992年，该地区完成了该项目的第一阶段，其中涉及从格兰德河建造一条原水供应管道和曼海姆附近的72,800立方米/日（16 MIgd）水处理厂。随后的阶段（包括对替代补给系统的现场测试）在1991年暂停，等待长期水策略（LTWS）的完成。 LTWS旨在审查该地区的长期供水方案，包括使用新技术进行含水层补给。rn LTWS期间进行的评估确定，曼海姆市的含水层补给是可行的，尽管建议重新设计系统包括含水层存储恢复（ASR）井。通过使用ASR井，该地区有机会将大量经过处理的地表水存储在曼海姆污水处理厂下方的无限制砂砾砾石含水层和深密闭石灰岩含水层中。在无侧限含水层中建造了一个ASR井。一系列的充电，存储和恢复周期始于1997年4月，并将持续长达一年。初始测试数据表明，ASR井将能够以大于4546立方米/天（1 MIgd）的速度回灌和回收处理过的水。如果测试计划证实了在曼海姆进行ASR的可行性，那么与传统的替代方案（例如扩大水处理，存储或传输设施）相比，该地区可能会节省大量成本。

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