Control Technology Comparison for Removing Heavy Metals from Shipyard Storm Water Runoff (2014-413)
- Environmental Compliance Services, Inc. (ECS)
- Ingalls Shipbuilding
NSRP ASE Investment: $149K
As a follow up to a previous project, Removal of Metals from Shipyard Storm Water Runoff, the primary intent of this project was to test and compare the ability of various adsorbent materials to decrease heavy metal concentration, specifically Copper (Cu) and Zinc (Zn), in shipyard storm water runoff and determine the most cost-effective control technology. Six (6) control technologies were selected to be compared for the ability to remove heavy metals. Three (3) were adsorbent materials: Cleanway MetalzorbTM , Filtrexx EnviroSoxx®, and Ultra-Filter Sock®. The other three (3) were mechanical filtration materials: Filtrexx Sedmiment Control®, Coconut Husk, and Pine Bark. The six (6) control technologies were deployed at six (6) test locations, which housed similar shipyard activities. The material was tested throughout the twelve (12) month project to determine removal efficiencies and life expectancy for each control technology. The reduction efficiencies and costs were compared to determine the most cost-effectives means of removing heavy metals from shipyard storm water runoff. In comparison, Filtrexx Sediment Control® yielded the least expense per effective sample combined with the greatest Cu and Zn average removal efficiencies over the effective use period of 4 sample events.
Final Report – Approved for public release; distribution is unlimited