Fall Is Back-to-School Time As our children "go back to school," let's revisit a core concept of activated carbon (AC) ourselves. Activated carbon acts as an adsorbent, facilitating the adherence of substances to its surfaces. Within AC, these interactions occur in micropores where carbon plates are arranged...
RPI Group Trusted to Work in Yellowstone National Park The RPI Group Companies, including AST Environmental and Alpine Remediation, successfully installed a 215-foot long (65.5-meters) permeable reactive barrier parallel to the Yellowstone River to safeguard the river from petroleum contamination. The RPI Laboratory processed both soil...
Over 22 years ago, RPI revolutionized the remediation industry by inventing carbon-based injectates. A key goal was to develop a process requiring no maintenance, starkly contrasting the pump-and-treat and dual-phase extraction systems so prevalent then, as well as ephemeral injectates like oxygenates. These remedies require...
Saddle Up, the 2024 Battelle Chlorinated Conference is on the Horizon For many attendees, Battelle is like "old home week." They visit friends and catch up on the news. Catching up is a lot of fun. We certainly look forward to seeing old friends, but I suspect...
In our July 2023 newsletter, we delved into the distinctiveness of BOS 100, clarifying that it is not just a blend of iron and activated carbon (AC). The energy-dispersive spectroscopy (EDS) image in Figure 1 beautifully illustrates this, revealing how the elemental iron is integral...
Fires, Toxins, & Other Unintended Consequences The thin glass teardrop in the picture contains approximately 750 ml of carbon tetrachloride (CT), which has discolored over time. As recently as the 1960s, these teardrops were suspended at the ceiling in plastic netting. In the event of a...
The use of activated carbon for in situ treatment of contamination in soil and groundwater was introduced to the industry by RPI over 22 years ago. Recent interest in "Carbon-based injectates" has spawned many opinions on its application and limitations from various sources, including the...
A Journey of Discovery with RPI: Unveiling the Interplay of Geology, Activated Carbon, and Microorganisms At the heart of science is the love of discovery—a love that fuels the quest to unravel the world's mysteries. Since RPI first introduced the use of activated carbon for in...
A rich mythology supports the Santa Claus figure. He can twinkle his nose, go down the chimney, and appear in the living room without smudging his red coat or white fur trim. While his impeccable appearance throughout a night of fantastic work amazes us -...
If there's a tip of the spear in the remediation industry, the folks in the field are it. You sweat in summer; you freeze in the winter. Have you ever worked in the cold so long that your hands are icy and numb? When suddenly...