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Ellwood Water Treatment Plant

机译：埃尔伍德水处理厂

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To increase drinking water system capacity and improve service reliability to customers in its Ellwood City service area, Pennsylvania American Water (PAW) made its largest infrastructure investment ever in northwestern Pennsylvania. The recently completed, $50-million Ellwood Water Treatment Plant in Lawrence County replaces a 100-year-old structure. Whereas, the previous plant's capacity was 5 mgd, the new plant features an 8-mgd raw water pump station (RWPS), expandable to 16 mgd, based on a 140-ft deep, caisson-type construction using deep-set vertical turbine pumps in a dry well on the west bank of the Beaver River. Dual and single 24-in. raw water intake mains extend from the raw water pump station caisson to diversion chambers located on the north bank of the Connoquenessing and the west bank of the Beaver River, respectively. Two sets of dual, 24-in. raw water intake mains extend from the diversion chambers to the intake screen configurations. Tunnels, bores, and directional drilling included two 75-in. diameter micro-tunnels for the raw water, finished water and utilities accessing the new intakes, 60-in. micro-tunnel, a 30-in. horizontal directional drill and two 36-in. pipe bores. Tunneling and bore pipe construction crossing included four utility crossings of CSX and Norfolk Southern railroad tracks. An air burst intake screen system and sodium permanganate chemical system are housed in the RWPS and distributed to the intake locations through the 60- and 75-in. tunnels along with the 24-in. raw and finished water mains. With expanded access and ample room to grow, the new Ellwood WTP enables Pennsylvania American Water to provide homes and businesses throughout the region with a reliable source of drinking water now and for decades to come.
机译：为了提高饮用水系统容量并提高其Ellwood City服务区客户的服务可靠性，宾夕法尼亚州美国水务公司（PAW）在宾夕法尼亚州西北部进行了最大的基础设施投资。最近在劳伦斯县耗资5000万美元建造的Ellwood水处理厂将取代拥有100年历史的建筑。以前的工厂容量为5 mgd，而新工厂则具有一个8 mgd的原水泵站（RWPS），可扩展到16 mgd，这是基于140英尺深的沉井式结构，使用深置立式涡轮泵在比弗河西岸的一口干井中。双和单24英寸。生水取水主管从生水泵站沉箱延伸到分别位于Connoquenessing北岸和Beaver河西岸的分流室。两组双通道，24英寸。原水进水总管从分流室延伸至进水滤网构型。隧道，钻孔和定向钻孔包括两个75英寸的孔。直径为60英寸的微隧道，用于接入新的进水口的原水，成品水和公用事业。微型隧道，30英寸。水平定向钻和两个36英寸钻管孔。隧道和钻孔施工穿越包括CSX和诺福克南部铁轨的四个公用事业穿越。 RWPS内装有空气爆破进气筛网系统和高锰酸钠化学系统，并通过60英寸和75英寸分配到进气位置。隧道以及24英寸长原水和成品水总管。新的Ellwood WTP扩大了访问范围，并拥有充裕的增长空间，使宾夕法尼亚美国水务公司可以为整个地区以及今后几十年的居民和企业提供可靠的饮用水。

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    《Trenchless Technology》 |2019年第10期|29-29|共1页
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