位于凤凰城市区内的区域性再活化设施最终可能 处理颗粒活性炭（GAC），每天的服务量高达10亿加仑 饮用水。大都会地区的城市预计每年的需求量为3000万英镑 到2013年，GAC的年产量（3000万磅/年）。城市在过滤器或后过滤器中使用或将使用GAC 接触器应符合第2阶段消毒剂/消毒副产品规则要求。这个 钱德勒、格伦代尔、梅萨、皮奥里亚、菲尼克斯、斯科茨代尔和亚利桑那州坦佩等城市都有 参与了一项区域性再活化设施的可行性研究。GAC的重新激活是一个重要问题 环境友好型选项，与其他选项相比，预计会降低总体成本 收购维珍广汽。所需的再活化能力估计为36毫米- 磅/年 （增加容量以满足峰值需求并减少现场存储量）。 一般的再活化过程包括通过将废GAC加热至 700-900°C，在蒸汽和二氧化碳下放置30分钟至2小时。设施技术将包括 再活化炉、酸浴和空气污染控制设备。房地产要求 根据设计能力、技术考虑和分区，预计占地6至10英亩 以及挫折要求。 2003年9月进行了成本分析，以确定通过重新激活来节省的成本 广汽与收购维珍广汽相比。重新激活广汽大约比购买维珍广汽少40%。四点之内 多年的资本成本将通过重新激活节省下来的资金来收回。 空气质量问题采用美国。 美国环境保护局（USEPA）批准了SCREEN3模型。最大值 预计影响将低于国家环境空气质量标准的3% 地面水平，旗杆高度不到14%。该模型还表明 有毒化学品对环境空气质量的影响将低于现行指南。 研究了在马里科帕县设立再活化设施的可行地点。地点 选择标准包括公众关注的问题、可访问性、许可要求、与环境的接近程度 公用事业、交通和分区。包括4个参考文献、表格和图表。

A regional reactivation facility located within the Phoenix metropolitan area could ultimately process the granular activated carbon (GAC) that services as much as one billion gallons per day of drinking water. Cities in the metropolitan area anticipate a demand of 30 million pounds per year (30 MM-lbs/yr) of GAC by 2013. Cities use, or will use, GAC in filters or post-filter contactors to meet Stage 2 Disinfectant/Disinfection Byproducts Rule requirements. The Cities of Chandler, Glendale, Mesa, Peoria, Phoenix, Scottsdale and Tempe, Arizona have collaborated in a feasibility study for a regional reactivation facility. GAC reactivation is an environmentally friendly option that is expected to result in lower overall costs as compared with the purchase of virgin GAC. Required reactivation capacity was estimated at 36 MM-lb/yr (additional capacity to meet peak demand and reduce the amount of onsite storage). The general reactivation process involves thermal reactivation through heating spent GAC to 700-900° C under steam and carbon dioxide for 30 minutes to 2 hours. Facility technologies will include reactivation furnaces, acid bath, and air pollution control equipment. Real estate requirements of 6 to 10 acres are anticipated based on design capacity, technological considerations and zoning and setback requirements. Cost analysis was conducted in September of 2003 to determine savings through reactivating GAC when compared to purchase of virgin GAC. Reactivating GAC is approximately 40% less than purchase of virgin GAC. Within four years capital costs will be recovered through savings from reactivation. Air quality concerns were evaluated using the U.S. Environmental Protection Agency (USEPA) approved SCREEN3 model. The maximum impact is anticipated to be less than 3 percent of the National Ambient Air Quality Standards at ground level, and less than 14 percent at flagpole heights. The model also indicated that the ambient air quality impact of toxic chemicals will be below current guidelines. Viable sites for locating a reactivation facility throughout Maricopa County were examined. Site selection criteria included public concerns, accessibility, permitting requirements, proximity to utilities, transportation and zoning. Includes 4 references, tables, figures.