Sevenson’s subsidiary, Waste Stream Technology, has operated an advanced, permitted treatability study laboratory since 1989. Our laboratory conducts in-house solidification/stabilization, heavy metals fixation, liquids/solids separation, dewatering, and water/wastewater treatability studies. The lab, managed by Dr. James Hyzy, PhD, CHMM, is staffed by a team of experienced professionals with expertise in chemical and biological aspects of hazardous waste science. Sevenson’s treatability laboratory conducts viability studies, bench-scale studies, engineering-scale studies, and pilot-scale studies in support of Sevenson’s field remediation operations. In addition, the treatability laboratory assesses proposed site-specific treatment plans and develops innovative treatment techniques which can be applied at full-scale on Sevenson’s projects. Conducting in-house treatability studies confirms the viability of a process, often improves project schedule, and can reduce project costs.
In early 2024, Sevenson completed major renovations and upgrades to the laboratory. Our equipment – ovens, muffle furnace, fume hoods – was upgraded; new lab benches were installed to increase workspace; and new office space was constructed.
In addition, Waste Stream updated its metal analysis area to include new analytical instrumentation, including an ICP-OES, a graphite and flame AA, a digestion microwave, and a water purification system. Geotechnical capabilities were also upgraded, as well, with the addition of new and updated load frame/software digitizing Unconfined Compressive Strength testing. As a result of these recent investments, Sevenson will be able to further improve field operations, project schedules and lower project costs.
