Treatability studies can be useful for water and wastewater. These studies involve coagulation-flocculation jar tests to determine the effectiveness of chemical treatment, coagulation, and flocculation processes for the removal of heavy metals and sludge. Effluents generated by the jar tests are analyzed for metals using ICPMS, ICP, and/or Cold Vapor AA and general chemistry parameters to determine the chemical composition of the effluent and the effectiveness of the treatment process. In addition to the jar tests, other analyses such as sludge volume, settling rate, specific gravity, and time-to-filter are performed to determine the sludge characteristics.
For some of our treatability studies and large analytical projects, our laboratories fall under the Resource Conservation and Recovery Act (RCRA) regulations. These regulations require labs performing treatability studies to follow certain procedures when accepting hazardous waste for study. We have written an in-house guidance manual, "Waste Management Policy for Treatability Studies," to conform to RCRA regulations. In general, the policy establishes a three-step process:
- Identification and listing of wastes to be regulated as hazardous
- Tracking of wastes from the point of generation, through transportation, to the site of final treatment, storage, or disposal
- Controlling the management practices used during the treatment, storage, and ultimate disposition of these wastes through technical standards, performance standards, and permitting requirements
Contact us if you need help with a treatability study.