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Addressing the Global Water Crisis With Membrane Technology 利用膜技术解决全球水危机
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-10-16 DOI: 10.1002/awwa.2354
Silvana M. Ghiu, Shubashini Oza, Kerry J. Howe, David A. Ladner
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引用次数: 0
Developing Service Line Inventories: Guidance for Utilities With Limited Lead Lines 编制服务管线清单:引线有限的公用事业公司指南
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2333
Nancy E. McTigue, David A. Cornwell, Richard Brown, Everett Skipper, Erika Green

In the United States, all community and nontransient noncommunity water systems are required to submit an inventory describing the location and makeup of all service lines in their service areas.

While the material can be designated as lead, galvanized requiring replacement, nonlead, or unknown, the last two designations require additional steps to be taken in the proposed Lead and Copper Rule Improvements (LCRI).

Some utilities have few or no lead service lines, and this inventory requirement, issued by the US Environmental Protection Agency (EPA), may be burdensome to those utilities.

This article demonstrates the methodology in EPA's proposed LCRI for verification of construction material, and an alternate validation procedure is proposed.

在美国,所有社区和非临时性非社区供水系统都必须提交一份清单,说明其服务区域内所有供水管道的位置和构成。 虽然材料可以被指定为含铅、需要更换的镀锌、无铅或未知,但后两种指定要求在拟议的铅铜规则改进(LCRI)中采取额外的步骤。 有些公用事业公司只有很少或根本没有含铅的服务管路,美国环保署 (EPA) 发布的这一清单要求可能会给这些公用事业公司带来负担。 本文展示了 EPA 提议的 LCRI 中用于验证建筑材料的方法,并提出了另一种验证程序。
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引用次数: 0
Consumers Again Praise Utilities, But Work Remains 消费者再次称赞公用事业,但仍需努力
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2331
Adam T. Carpenter, Carita Parks
<p>Since 2020, AWWA has commissioned an annual study of public confidence in drinking water. This study has provided valuable context and insight into how the public feels about water utilities.</p><p>The numbers could be even better. Evidence shows that proactive communication from utilities works. Those who recall receiving recent communication (other than a bill) from their utility gave higher ratings to their utilities and their water on many different metrics, and we’ve seen this for several years in a row.</p><p>It is likely proactive communication will better instill confidence than letting someone else take the narrative. Although we can only demonstrate correlation and not causation, there's reason to think that hearing information from a trusted source helps increase confidence.</p><p>Another area for improvement is closing the gap in ratings among Hispanic and Black respondents compared with White respondents, although Hispanic respondents’ ratings edged higher overall this year. This gap presents an opportunity to ensure all groups are receiving the same level of service as well as further targeted outreach and education.</p><p>Other SDWA-related questions were harder to interpret. When presented with the statement “The Safe Drinking Water Act has effectively regulated drinking water for the past 50 years,” while considerably more agreed (55%) than disagreed (14%), nearly a third (30%) did not know or had no opinion. Given the complexity of federal laws and regulations, these results are not so surprising and likely represent unfamiliarity with SDWA regulations. This suggests another topic utilities could further educate their consumers about.</p><p>Similar uncertainty was seen in responses to statements such as “Water utilities will show resilience in light of extreme events and climate change” and “Water utilities are prepared to face the challenges that they will see in the future.” This uncertainty represents key opportunities to talk about current activities and future plans with the public.</p><p>Utilities are encouraged to review all the detailed results and use them to gather insights on the national picture of public confidence and use that as context for inquiry and engagement in their own communities. We encourage readers to view the press release, infographic, and AWWA's Value of Water page.</p><p>Throughout the year, we receive questions on how the survey was conducted. We hired a top polling firm, Morning Consult (MC), who walks us through the whole process for each study, making sure we ask questions free from avoidable bias, and seeks to provide meaningful insights. The survey is nationally representative per MC's methodology used in hundreds of other surveys. The more than 2,000 respondents did not know the survey's sponsor and had self-reported, before taking the survey, that they were served by a water utility.</p><p>This survey also has some limits, of course. It is nationally representative by key demographics, bu
自 2020 年以来,AWWA 每年都会委托开展一项有关公众对饮用水信心的研究。这项研究为了解公众对供水公司的看法提供了宝贵的背景和见解。有证据表明,供水公司的主动沟通是有效的。那些记得最近收到过自来水公司沟通信息(账单除外)的人在许多不同的指标上对自来水公司和自来水给予了更高的评价,而且我们已经连续几年看到这种情况。虽然我们只能证明相关性而非因果关系,但我们有理由认为,从可信来源获得信息有助于增强信心。另一个需要改进的方面是缩小西班牙裔和黑人受访者与白人受访者之间的评分差距,尽管今年西班牙裔受访者的评分总体上有所上升。这一差距为确保所有群体获得同等水平的服务以及进一步开展有针对性的宣传和教育提供了机会。当问及 "过去 50 年来,《安全饮用水法》对饮用水进行了有效监管 "时,同意的人数(55%)大大多于不同意的人数(14%),近三分之一(30%)的人不知道或没有意见。鉴于联邦法律法规的复杂性,这些结果并不令人惊讶,而且很可能代表了对 SDWA 法规的不熟悉。对于 "水务公司将在极端事件和气候变化中表现出适应能力 "和 "水务公司已准备好面对未来的挑战 "等说法的回答也存在类似的不确定性。我们鼓励水务公司审查所有详细结果,并利用这些结果收集对全国公众信心状况的见解,并以此为背景在自己的社区开展调查和参与活动。我们鼓励读者查看新闻稿、信息图表和 AWWA 的 "水的价值 "网页。我们聘请了一家顶级民意调查公司 Morning Consult (MC),该公司会指导我们完成每项调查的整个过程,确保我们提出的问题不存在可避免的偏见,并力求提供有意义的见解。根据 MC 在数百项其他调查中使用的方法,本次调查具有全国代表性。2000 多名受访者不知道调查的发起人,他们在接受调查前都曾自称接受过自来水公司的服务。当然,这项调查也有一定的局限性,它在全国范围内的主要人口统计数据具有代表性,但供水公司本身的分布情况与用户的分布情况并不完全相同。此外,我们还缺乏有关为这些用户提供服务的供水公司的履约历史或其他关键特征的信息。相反,这是一项认知调查,依赖于公众对供水公司的看法和感受。
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引用次数: 0
Understanding Drinking Water Quality in Appalachia 了解阿巴拉契亚地区的饮用水质量
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2337
Elham Erfanian, Gi-Eu Lee, Dominic Gomez

While the Safe Drinking Water Act (SDWA) applies to all public water systems in the United States, the severity and prevalence of violations vary among locations.

A study investigated drinking water quality, indicated by statistics of the SDWA in the 13 Appalachian states from 2010 to 2022, to identify any differences in violations.

The need for better water system management and infrastructure in economically disadvantaged regions is clear, along with public education and effective policies.

虽然《安全饮用水法案》(SDWA)适用于美国所有的公共供水系统,但各地违反该法案的严重程度和普遍性却不尽相同。 一项研究调查了 2010 年至 2022 年阿巴拉契亚 13 个州的 SDWA 统计数据所显示的饮用水质量,以确定违规情况的差异。 经济落后地区显然需要更好的供水系统管理和基础设施,以及公众教育和有效的政策。
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引用次数: 0
AWWA Water Science Author Spotlight: Jonathan B. Burkhardt AWWA 水科学作者聚焦:Jonathan B. Burkhardt
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2334
<p><b>Having recently published an article in <i>AWWA Water Science,</i> Jonathan B. Burkhardt answered questions from the publication's editor-in-chief, Kenneth L. Mercer, about the research.</b></p><p><b>Pressure-Dependent Analysis in Premise Plumbing System Modeling</b></p><p>Jonathan B. Burkhardt, John Minor, Feng Shang, and William E. Platten III</p><p><i>Jonathan Burkhardt is an environmental engineer in the US Environmental Protection Agency's Office of Research and Development</i>.</p><p>I earned PhD, MS, and BS degrees in chemical engineering from the University of Cincinnati. My undergraduate education included a cooperative learning experience, where I worked in a chemical manufacturing facility. Following graduate school, I participated in an ORISE (Oak Ridge Institute for Science and Education) post-doctoral fellowship with the EPA, conducting research into event detection software and multispecies water quality modeling. I also routinely participate in AWWA and ASCE (American Society of Civil Engineers) conferences to keep up to date with current research.</p><p>For models to be effective, they typically require a theoretical foundation (or the mathematical formulas on which they are built) and usually require information about the parameters that make those formulas relevant for appropriate conditions or scenarios. Much of my work focuses on developing appropriate parameters that make the models work.</p><p>I am also trying to understand whether the parameters or models are valid for what we are studying. For our recent paper, we focused on trying to determine parameters for predicting how the pressure at faucets affected the rate at which water was supplied by those faucets. This information is important because it helps us improve those predictions in the EPANET (a public domain software application for modeling water distribution systems) network modeling and more accurately predict flow rates as pressures change in those premise plumbing (home and building) systems.</p><p><i>Jon enjoys a hike through Turkey Run State Park in Indiana</i>.</p><p>We did not really use any new techniques in this work but rather relied on available pressure and flow sensors attached to a data logger to help capture the data we reported. The results of this work do provide valuable information to the larger research project about premise plumbing modeling and are being incorporated in our model development.</p><p>As research goes, this research went fairly smoothly. Using automated data collection required a little work up front to make sure we could read that data into our scripts correctly, but this was generally an easy and expected step. The differences in pressure/flow relationships for various fixtures was an expected outcome. The only real challenge was isolating cold- or hot-only sides of the shower mixing valve; luckily, this was easily overcome with adjustment screws that are present on the mixing valve.</p><p>This work was part of a larger
最近,Jonathan B. Burkhardt 在《AWWA 水科学》上发表了一篇文章,并回答了该刊物主编 Kenneth L. Mercer 提出的有关研究的问题。我在辛辛那提大学获得了化学工程的博士、硕士和学士学位。我的本科教育包括一次合作学习经历,我在一家化学制造厂工作。研究生毕业后,我参加了美国环保署的 ORISE(橡树岭科学与教育研究所)博士后研究,从事事件检测软件和多物种水质建模方面的研究。我还经常参加 AWWA 和 ASCE(美国土木工程师学会)会议,以了解当前研究的最新进展。要使模型有效,通常需要一个理论基础(或建立模型的数学公式),而且通常需要有关参数的信息,以使这些公式适用于适当的条件或情况。我的大部分工作都集中在开发适当的参数,使模型发挥作用。我还试图了解这些参数或模型对于我们正在研究的问题是否有效。在我们最近的论文中,我们重点尝试确定参数,以预测水龙头的压力如何影响这些水龙头的供水速度。这些信息非常重要,因为它可以帮助我们改进 EPANET(一种用于配水系统建模的公共领域应用软件)网络建模中的预测,并更准确地预测这些前提冷热水管道(家庭和建筑)系统中压力变化时的流量。我们在这项工作中并没有真正使用任何新技术,而是依靠连接到数据记录器上的现有压力和流量传感器来帮助捕捉我们报告的数据。这项工作的结果确实为更大的前提下管道建模研究项目提供了有价值的信息,并被纳入到我们的模型开发中。使用自动数据采集需要做一些前期工作,以确保我们能够正确地将数据读入脚本,但这通常是一个简单且意料之中的步骤。不同固定装置的压力/流量关系差异也是意料之中的结果。唯一真正的挑战是隔离淋浴混合阀的冷侧或热侧;幸运的是,使用混合阀上的调节螺钉很容易解决这个问题。我们计划利用这项工作中开发的参数来进行更多的模型情景模拟,以模拟家庭或建筑冷热水管道中的各种情况。由于流经这些系统的流量是由我们探索的压力/流量响应决定的,因此我们的参数可以帮助改进未来对使用过程中实际流出量的预测。我们的目标是利用这些结果来改进对水的归宿和传输以及前提冷热水管道系统中相关水质问题的预测。我们还在进行相关的研究,研究扩散建模,这需要对流速进行准确预测,而这些参数将直接为建模工作提供信息。我喜欢徒步旅行,并一直在努力游览许多州立和国家公园。我还喜欢摄影,尤其是自然摄影。我还制作过一些家具,并喜欢其他木工和 DIY 项目。我认为建模是水利工程师工具箱中的重要工具。目前大多数计算机都可以支持各种模型,甚至是计算密集型模型,而且在很多情况下,我们可以使用在线云资源来处理更复杂的工作。模型需要数据,而我们正处于一个数据获取越来越方便的阶段,我们可以利用数据来改善水行业的整体决策。数字孪生和机器学习或人工智能领域以及相关模型将有望帮助水务公司优化运营。水是复杂的,但继续加深对各种决策如何影响供水及其质量的理解只会使水务行业及其客户受益。优质数据的可用性将有助于实现这一点,而优质数据将有助于改进建模和相关结果或决策。
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引用次数: 0
Industry News 行业新闻
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2343
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引用次数: 0
Methods for Analyzing PFAS in Water 分析水中 PFAS 的方法
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2335
William Lipps, Hunter Adams, Dave Thomas, Sinisa Urban

As the hazards of per- and polyfluoroalkyl substances—widely known as PFAS—are better understood, regulations and guidelines for addressing them will continue to evolve.

Water utilities play a significant role in PFAS mitigation by incorporating detection, monitoring, and treatment techniques into their operations.

Many methods for PFAS analysis are in place. A detailed explanation and comparison of each can help utilities determine the best approaches for their particular circumstances.

随着人们对全氟化烷基和多氟化烷基物质(又称 PFAS)的危害有了更深入的了解,处理这些物质的法规和指导原则也将不断发展。 供水公司通过将检测、监控和处理技术纳入其运营,在减少 PFAS 方面发挥着重要作用。 目前已有许多用于分析 PFAS 的方法。对每种方法的详细解释和比较可帮助供水公司确定适合其特定情况的最佳方法。
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引用次数: 0
Proactive Leak Notification Programs Advance Conservation 主动渗漏通知计划促进节约
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2336
Liesel Hans

Proactive leak notification programs provide many benefits, including reducing water waste, keeping customer bills lower, and reducing staff time and resources on calls, bill adjustments, and billing disputes.

Leak notification programs can benefit from advanced metering infrastructure to identify water use patterns that indicate the presence of a leak or another problem.

Utilities should reach out through multiple communication channels to notify customers as quickly as possible after a leak is identified.

Proactively notifying customers of potential leaks leads to higher customer satisfaction and greater community trust.

主动漏水通知计划有很多好处,包括减少水资源浪费、降低用户账单,以及减少员工在电话、账单调整和账单纠纷上花费的时间和资源。 漏水通知计划可受益于先进的计量基础设施,以识别表明存在漏水或其他问题的用水模式。 发现漏水后,公用事业公司应通过多种沟通渠道尽快通知客户。 积极主动地通知客户潜在的漏水问题可提高客户满意度和社区信任度。
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引用次数: 0
The Shape of AWWA AWWA 的形态
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2345
David B. LaFrance
<p>It took less than a minute on Oct. 26, 1881. In that moment, Wyatt Earp, Doc Holliday, and the Clanton Gang engaged in the historic gunfight at the O.K. Corral. Since then, numerous movies have been produced and books published about this fateful incident in Tombstone, Ariz.</p><p>While much less documented, another significant, life-changing event occurred seven months earlier. It took days, not seconds, 1,400 miles away from Tombstone. The spot was Engineers’ Hall at Washington University in St. Louis, Mo. Twenty-two water utility employees from Illinois, Indiana, Iowa, Kansas, Kentucky, and Tennessee gathered for the first time to share best practices in water treatment, leading to the creation of the American Water Works Association. Together, they drafted and adopted AWWA's original constitution, stating the organization's purpose was “to exchange information about water-works management and to advance both consumers and water companies, and for the purpose of securing the economy and uniformity in the operations of water-works.”</p><p>During the 143 years of AWWA's history, its members have grown from the original 22 to more than 50,000. Also, AWWA is now known as the leading standards-writing organization for the water sector. The first AWWA standard was published in 1908 on the <i>Specifications for Cast Iron Water Pipes and Special Castings</i>. Today, AWWA offers water professionals more than 190 ANSI (American National Standards Institute)-approved standards.</p><p>As AWWA's membership grew, it recognized the benefit of disseminating knowledge that originated from the association as well as from local cohort groups. This strategic realization brought AWWA to create its first local section, the New York Section, in 1914. Two years later, there were eight AWWA sections, including one in Canada (which encompassed the entire country). By 1930, AWWA needed a headquarters office, which it established in New York City, along with a newly hired staff. AWWA now has 43 sections that span geographically from Maine in the eastern United States to Alaska on the western edge, and from Canada to the north to Mexico to the south. Add to that an association staff of 150, located in Denver and Washington, D.C.</p><p>During the second half of the 1900s, AWWA focused on the critical need for research about water treatment and management. Its board of directors formed a water research foundation in 1966. Today, The Water Research Foundation is a One Water organization, delivering research programming to help address the water sector's current water challenges. Similarly, in 1991, AWWA leaders heeded a calling to help improve water systems around the world. These leaders envisioned, and AWWA created, Water For People, which is now a highly regarded global nonprofit that addresses the global water crisis in nine countries in Latin America, Asia, and Africa.</p><p>Along the lines of looking forward and spreading water knowledge beyond the boundaries of Nor
1881 年 10 月 26 日,这一切只发生了不到一分钟。在那一刻,怀特-厄普、多克-霍利迪和克兰顿帮在O.K.畜栏展开了历史性的枪战。此后,关于亚利桑那州通伯斯通发生的这一致命事件的电影和书籍层出不穷。这件事发生在距离墓碑石 1400 英里之外的地方,历时数天,而不是几秒钟。地点是位于密苏里州圣路易斯市华盛顿大学的工程师大厅。来自伊利诺伊州、印第安纳州、爱荷华州、堪萨斯州、肯塔基州和田纳西州的 22 名水务公司员工首次齐聚一堂,分享水处理方面的最佳实践,并由此成立了美国水务协会。他们共同起草并通过了 AWWA 的原始章程,规定该组织的宗旨是 "交流水厂管理信息,促进消费者和水务公司的发展,并确保水厂运营的经济性和统一性。"在 AWWA 143 年的历史中,其成员已从最初的 22 个增加到 50,000 多个。此外,AWWA 现在也被称为水行业的主要标准编写组织。第一个 AWWA 标准于 1908 年发布,内容是《铸铁水管和特殊铸件规范》。如今,AWWA 为水务专业人士提供了 190 多个经 ANSI(美国国家标准协会)批准的标准。随着 AWWA 成员的增加,它认识到传播源自协会和当地同类团体的知识的益处。这一战略认识促使 AWWA 于 1914 年成立了第一个地方分会--纽约分会。两年后,AWWA 共成立了八个分会,其中包括一个加拿大分会(覆盖全国)。到 1930 年,AWWA 需要一个总部办公室,于是在纽约市设立了总部办公室,并雇佣了一批新员工。现在,AWWA 拥有 43 个分会,地理范围从美国东部的缅因州到西部的阿拉斯加,从北部的加拿大到南部的墨西哥。20 世纪下半叶,AWWA 开始关注水处理和管理研究的迫切需求。1966 年,协会董事会成立了水研究基金会。如今,水研究基金会是一个 "一个水 "组织,提供研究计划,帮助解决水行业当前面临的水挑战。同样,1991 年,AWWA 领导人响应号召,帮助改善世界各地的供水系统。这些领导人设想并由 AWWA 创建了 "人民之水"(Water For People)组织,该组织现已成为备受赞誉的全球性非营利组织,在拉丁美洲、亚洲和非洲的九个国家解决全球水危机。2022 年,AWWA 启动了描绘 2050 年水务未来的远景目标。AWWA 由其董事会领导,董事会共有 64 名成员。该董事会虽然规模庞大,但仍秉承了 1881 年 AWWA 22 位创始人的核心价值观:分享最佳实践。当然,与 1881 年相比,2024 年的工作范围更加广泛;因此,AWWA 董事会的形式反映了当前愿景的需求。董事会由董事会主席领导,一旦由董事会成员选举产生,主席首先担任一年的当选主席,然后担任一年的主席,最后一年担任董事会的上任主席。AWWA 六个理事会的主席也是董事会成员。这些理事会包括国际理事会、制造商和联营公司理事会、公共事务理事会、标准理事会、技术和教育理事会以及供水设施理事会。董事会的最大组成部分包括来自 AWWA 43 个分会的 45 名董事,以及 4 名无任所董事。董事会的六名副主席从这 49 名董事中选出。董事会其余成员包括财务主管、水研究基金会主席、三名青年专业顾问和首席执行官。AWWA 董事会的众多职责之一是制定和通过 AWWA 的五年战略计划。今年六月,2030 年战略计划获得通过。正如 1881 年的情况一样,该计划延续了 AWWA 交流 "水厂运营 "信息的传统,并应对了许多现代水挑战。虽然我们可能不会出现在电影或畅销小说中,但我们将继续创造历史。
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引用次数: 0
Minimizing the Risk of Hazard Mitigation 最大限度降低危害缓解风险
IF 0.7 4区 环境科学与生态学 Q4 ENGINEERING, CIVIL Pub Date : 2024-09-16 DOI: 10.1002/awwa.2338
Claire Patton, Jenny Graves, Aaron Pfannenstiel
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引用次数: 0
期刊
Journal ‐ American Water Works Association
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