Clean Harbors (CLH) Conference Summary Industry Overview - Clean Harbors is the largest hazardous industrial waste service company in North America, focusing primarily on hazardous waste with some medical waste services due to incineration capabilities [4][10] - The waste industry is becoming more integrated, covering solid, industrial, and medical waste [4] Macroeconomic Outlook - The macroeconomic outlook has improved since the beginning of the year, with a strong pipeline and growth observed in April [7][8] - Despite concerns about cyclicality, Clean Harbors has shown resilience, with no signs of customers reducing demand [8][20] Business Segments Environmental Services - The Environmental Services segment has improved margins by 500 basis points over the last six to eight years, attributed to new incinerator capacity, better pricing strategies, and operational efficiencies [10][11] - The company has experienced 12 consecutive quarters of year-over-year EBITDA margin growth in this segment [17] Used Oil and Safety Clean Solutions - The used oil segment has faced profitability challenges post-pandemic, but a shift in strategy to prioritize pricing over volume has led to improved stability [81][86] - The company processes approximately 250 million gallons of used motor oil annually, converting it into base oil [82] Capacity and Market Dynamics - There is ample landfill capacity, but incineration capacity is constrained due to the complex nature of waste streams [28][30] - Clean Harbors has added new incineration capacity and expects this to be absorbed by the market due to ongoing demand [30][34] Regulatory Environment and PFAS - Clean Harbors has introduced a total PFAS solution, which includes testing, remediation, and disposal services, with projected revenue growth of 10% to 20% in this area [64][70] - The company is actively involved in addressing PFAS issues, with a long-term view on regulatory developments and market needs [68][69] Mergers and Acquisitions - The company has expanded its market share through acquisitions, allowing for better pricing discipline and stability in the Environmental Services segment [50][52] - Future M&A strategies will focus on geographic expansion and enhancing capabilities in waste management [53] Conclusion - Clean Harbors is positioned well within the hazardous waste industry, demonstrating resilience against macroeconomic challenges and adapting its business strategies to maintain profitability and growth [17][19][88]

Financial Data and Key Metrics Changes - Company revenue increased by 4% in Q1, totaling $55 million growth, with the Environmental Services (ES) segment contributing two-thirds of that growth [27][8] - Adjusted EBITDA for Q1 was $235 million, with a margin of 16.4%, slightly down year-over-year but in line with expectations [28][27] - Net income for Q1 was down compared to the same period last year, with earnings per share reported at $1.09 [29] Business Line Data and Key Metrics Changes - The ES segment saw a 3% increase in revenue and a 4% increase in adjusted EBITDA, driven by the acquisition of Hefeco and higher incineration utilization [9][8] - Safety Kleen Environmental Services (SKSS) revenue increased year-over-year, reflecting greater volumes and a shift to a higher Charge for Oil (CFO), although adjusted EBITDA decreased slightly [15][16] - Industrial Services revenue declined by 10% year-over-year due to refinery customers delaying spending and maintenance [12][13] Market Data and Key Metrics Changes - The total recordable incident rate (TRIR) for safety was reported at 0.46, marking the best quarter in the company's history [5][6] - Incineration utilization improved to 88% from 79% in Q1 2024, with incineration pricing rising more than 5% on a mix-adjusted basis [10][11] - The company processed 5,000 tons in its new kiln during Q1, with a goal to process over 28,000 tons for the year [11][19] Company Strategy and Development Direction - The company is focusing on internal and external growth opportunities, with a strong cash balance and low leverage to support its growth strategy [20][22] - There is an emphasis on capitalizing on synergies through M&A while also investing in expanding processing and recycling capabilities [20][21] - The company aims to stabilize the SKSS segment while maximizing the value of its assets and minimizing downside potential [24][22] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about the demand for services, particularly in disposal and recycling, despite potential impacts from tariffs [22][70] - The company anticipates a strong second half of the year, with a robust pipeline of remediation and waste projects [24][22] - Management remains cautious about the industrial services segment but believes in the long-term prospects due to the necessity of the services provided [24][70] Other Important Information - The company ended Q1 with a cash balance approaching $600 million and a net debt to EBITDA ratio of approximately 2.1 times [29][30] - A credit rating upgrade by Moody's was received during the quarter, reflecting strong financial performance and capital policies [30][29] - Adjusted free cash flow for Q1 was negative $116 million, consistent with the previous year, primarily due to timing of incentive comp payments and seasonal working capital increases [31][30] Q&A Session Summary Question: Impact of weather on ES segment performance - Management indicated that weather negatively impacted Q1 performance, estimating a loss of $10 million to $12 million in EBITDA due to difficult conditions in January [41][42] Question: Guidance for Q2 and refinery turnarounds - Management confirmed that Q2 guidance does not include large-scale emergency response events and expects a better second half with over 150 planned refinery turnarounds [44][45] Question: Cyclicality of the ES segment - Management described the ES segment as recession-resistant, with continued strong growth expected in the second and third quarters [49][50] Question: Update on PFAS revenue growth - Management confirmed a strong pipeline for PFAS solutions, expecting revenue growth in the range of 15% to 20% for the year [59][60] Question: Base oil pricing and inventory status - Management acknowledged pressure on base oil pricing but highlighted successful pricing initiatives that doubled the average price charged for used oil collection [100][101] Question: M&A pipeline and current environment - Management noted that valuations remain high for assets, but the company is actively reviewing multiple deals while being selective [91][92]

EDMONTON, Alberta and NEW YORK, April 30, 2025 (GLOBE NEWSWIRE) -- TSX, NYSE:STN Stantec, a global leader in sustainable design and engineering, has been selected by the City of Vancouver, Washington, to design a treatment system to remove per- and polyfluoroalkyl substances (PFAS) from a high-volume water station—with the goal of providing cleaner, more reliable drinking water for the community. Stantec will also provide engineering services during construction for the treatment facility at Vancouver’s Wat ...

然而，LLE的缺点也很明显。一方面，水样中的颗粒物或溶解性有机物容易引发乳化现象，这就需要额外的离心或盐析 步骤，导致处理时间延长；另一方面，极大的溶剂消耗量（1 L水样需2 0 - 1 0 0 mL溶剂）增加了环保成本。而且，短链 导读： 为此，本文特别邀请了哈尔滨工业大学（深圳）的陈白杨教授团队，就PFAS检测中固相萃取与液液萃取技术进行深入解读。 特别提示 微信公众号机制调整，请点击顶部"仪器信息网" → 右上方"…" → 设为 ★ 星标，否则很可能无法看到我们的推送。 在检测水中全氟和多氟烷基物质（PFAS）时，选择恰当的样品前处理方法极为关键。液相色谱（HPLC）常与固相萃 取（SPE）或液液萃取（LLE）相结合用于富集样品。这两种方法各有优缺点，要依据具体需求进行权衡选择。为此， 本文特别邀请了哈尔滨工业大学（深圳）的陈白杨教授团队，就PFAS检测中固相萃取与液液萃取技术进行深入解读。 (拓展阅读：专家解读|基于两步液液萃取前处理的离子色谱法检测水中全氟类物质) 固相萃取（SPE） SPE是一种高效的样品前处理技术，其过程为利用吸附剂选择性保留目标化合物，再用萃取剂高效解吸目标化合物。 SPE具有 ...

特别提示 微信公众号机制调整，请点击顶部"仪器信息网" → 右上方"…" → 设为 ★ 星标，否则很可能无法看到我们的推送。 PFAS（全氟和多氟烷基物质）因其独特的化学稳定性、耐热性和表面活性，广泛应用于工业生产和生活领域（如不粘涂层、消防泡沫、纺织加 工等）。然而，这类化合物的环境持久性、生物累积性及潜在毒理性（如干扰内分泌系统、致癌风险）使其成为全球关注的"永久化学物质"。 近年来，PFAS污染问题已从实验室研究走向公众视野，其对公共健康、环境保护及相关行业构成的巨大挑战不容忽视。与此同时，这一问题也 促使全球各国纷纷出台更为严格的监管政策和标准。 面对日益严峻的PFAS污染问题，发展精确、高效的PFAS分析检测技术显得尤为迫切。为了有效应对这一挑战，我们亟待在PFAS检测的技术创 新、方法优化、法规监管以及污染治理技术方面取得突破。如何在严格的检测标准下，高效实现PFAS物质的识别、定量及源追溯，已成为各相 关领域共同关注的焦点。 本次网络研讨会将聚焦PFAS分析检测技术前沿，旨在为业内专家、科研人员、环境监测机构及相关企业提供一个信息交流与技术共享的平台。 通过本次研讨会，参会人员将获得最前沿的技术 ...

导读： 各级生态环境部门在受理和审批重点行业建设项目环评文件时，针对以多项重点管控新污染物为产品或为原辅材料的新建、改建、扩建项目将不予审批， 其中就包括全氟辛烷磺酸、全氟辛酸等多种物质。 特别提示 微信公众号机制调整，请点击顶部"仪器信息网" → 右上方"…" → 设为 ★ 星标，否则很可能无法看到我们的推送。 点击 文末"阅读原文"查看详情 生态环境部近日印发 《关于加强重点行业涉新污染物建设项目环境影响评价工作的意见》（以下简称《意见》） 。首次系统规范重点行业建 设项目环评工作中新污染物的环境管理要求。 《意见》重点关注石化、涂料、纺织印染、橡胶、农药、医药等重点行业建设项目，重点关注重点管控新污染物清单、有毒有害污染物名录、 优先控制化学品名录以及《关于持久性有机污染物的斯德哥尔摩公约》附件中已发布环境质量标准、污染物排放标准、环境监测方法标准或其 他具有污染治理技术的污染物. | 编号 | 不 子 审 批 环 评 的 项 目 类别 | | --- | --- | | 1 | 1. 以全氟辛基碳酸及其盐类和全氟辛基磺酰氟(PFOS 类)为产品的新改扩建设项目 | | | 2. 以全氟辛基磺酸及其盐类 ...

这是半佛仙人的第1771篇原创 1 周末不卷，随便写点。 这两天后台不断有人发我一个新闻，表示佛子哥你完辣，你身体不好的原因找到辣。 都是因为你有一堆始祖鸟。 吓我一跳。 新闻大家看下吧。 （新闻来自每日经济新闻） 向 下 滑 动 查 看 （新闻截图来自蓝鲸新闻） （新闻截图来自中国蓝新闻） （新闻截图来自中国经济网） （新闻截图来自中国商报） 简单理解就是，有个防水面料GORE-TEX，被用在很多牌子的冲锋衣上，但这个东西吧， 最近被说可能有问题。 大部分防水冲锋衣都用过这东西，并不只有始祖鸟。 就，你别笑我，你也跑不了。 你也有冲锋衣。 咱们都是，难兄难弟。 2 但是。 害怕了好一阵之后，我研究了一下具体内容，整个人直接笑出声了。 这个事情，太艺术了。 先要问一句，这事儿是不是真的？ 是真的，有毒的成分叫PFAS。 仔细看哈，别急着嘲笑我。 那始用了这个材料会绝育吗？ 不会。 为什么？ 因为这玩意儿主要是通过污染地下水等食用的方式进入你体内。 你洗衣机洗冲锋衣时（真的会有人拿洗衣机直接洗防水冲锋衣么）会产生磨损，产生微量的PFAS。 注意， 食用 。 咱就说什么样的人，在什么样的场景下，会饿了不点外卖，生 ...

Perma-Fix Environmental Services (PESI) Q4 2024 Earnings Call March 13, 2025 11:00 AM ET Company Participants David Waldman - Investor RelationsMark Duff - President & CEOBen Naccarato - CFO, Executive VP & SecretaryRoss Taylor - Partner and Portfolio ManagerBob Goodwin - Managing DirectorLouis Centofanti - Founder, Executive VP of Strategic Initiatives & Executive DirectorSteve Fine - Owner Conference Call Participants Aaron Spychalla - Research AnalystNone - Analyst Operator Greetings. Welcome to the Perm ...