挑战
Golden Valley Electric Association (GVEA) operates a two-unit coal-fired power plant in remote Healy, Alaska. The plant is located two hours from the city of Fairbanks and just 300 miles south of the Arctic Circle. The area is known for its long, cold winters, summer temperatures that hover around freezing, and year-round snowbanks. When GVEA decided to upgrade Healy’s environmental controls and systems, along with its water treatment system – all while bringing a second, larger power plant back online – it became critical that they find a temporary water solution to keep them up and running. GVEA approached Veolia | Water Tech for a mobile water solution that would allow them to continue operation of the plant, 3,177 miles of transmission and distribution lines, and 34 substations during the planned 90-day outage. The utility has had a decade-long relationship with Veolia’s chemical solutions team and selected Veolia, in part, for its large fleet of deployable mobile equipment and the technology to support ion exchange, filtration, and membrane separation, including reverse osmosis (RO) and ultrafiltration.
解决方案
Veolia的移动式滤水系统可在计划内的停机和紧急情况下提供有保证的水质和水量。 移动拖车可进行过滤，超滤，反渗透和/或去离子处理。可定制水处理系统以处理地表水，井水，海水，河水或废水。交付给Healy的Veolia系统包括一个RO拖车，该拖车装有各种过滤容器和一个100加仑/分钟的RO装置。反渗透系统产生的水通过离子交换罐进一步净化，以达到Healy工厂中锅炉给水所需的质量。另外，为了最大程度地减少离子交换罐的更换和运输成本（这可能会非常昂贵），将RO系统升级为内部产品水循环利用系统。由于工厂位于偏远地区，Veolia代表每周至少五天在现场8-10小时，以解决所有出现的问题。
结果
Veolia为偏远的阿拉斯加发电厂提供临时移动式供水解决方案。
获得洁净水是支持GVEA正在进行的投资的关键步骤，2015年夏天，GVEA成功重启了Healy电厂。 通过使用Veolia的移动车队，该工厂能够升级其技术并重新启动其工厂的第二个机组，而不会降低性能。