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Soil Remediation HS-Chem/SmileCorp Collaboration

Soil Remediation HS-Chem/SmileCorp Collaboration. SmileCorp Smelting Facility. located in Smileyville, NY zinc, tin and lead production recycling/recovery of metals large employer in area supply metals to many industries. Our Facility. In use for 50 years 50 acre site

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Soil Remediation HS-Chem/SmileCorp Collaboration

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  1. Soil RemediationHS-Chem/SmileCorp Collaboration

  2. SmileCorp Smelting Facility • located in Smileyville, NY • zinc, tin and lead production • recycling/recovery of metals • large employer in area • supply metals to many industries

  3. Our Facility • In use for 50 years • 50 acre site • On Smileyville river • recreational • Near residential areas • Near forested areas

  4. Smelting Byproducts • Blast furnace slag • considered harmless • used in other products • off site disposal • Blast furnace stack • dust containing lead • Stored on site • recycling • disposal

  5. Past Practices • Blast furnace slag • may have been dumped in Smileyville river • dispersed around site • left in piles on site • Blast furnace stack • dust may not have been captured • captured dust may be disposed of on site

  6. Subsurface Depth of known lead contamination = 4.5 feet Depth to water table = 5 feet Depth = 10 feet Direction of flow Ground water Bedrock

  7. SmileCorp Options H20 + EDTA? H20 + Pb+2 • Do nothing • Pump and treat • Pump and treat with additive (EDTA) Ground water Bedrock

  8. Lead - ligand Interaction Pb+2 Released into solution Soil Pb+2 Pb+2 Pb+2 In solution “tied up” by ligand Pb+2 EDTA (ethylenediaminetetraacetic acid)

  9. Cost effective solution Least chance of fines from government or lawsuits Non-disruptive procedure SmileCorp Objectives

  10. HS-Chem • Analyze data & run experiments • what will happen to lead on our site if left as is? • should we consider pump and treat technology? • would adding EDTA to the pump and treat system improve results? • what is the best course of action for SmileCorp?

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