FULL SCALE CHEMICAL OXIDATION OF MANUFACTURED GAS PLANT HYDROCARBONS IN SOIL AND GROUND WATER USING FENTON'S REAGENT

摘要

Chemical oxidation of manufactured gas plant hydrocarbons in soil and groundwater is currently being conducted at the Burlington MGP site using the Geo-Cleanse~R Process. The process involves simultaneous injection of Fenton's reagent (hydrogen peroxide and trace quantities of an iron catalyst) under pressure into the impacted saturated soil. This process was proven to be effective in both laboratory bench scale studies and pilot studies conducted on site. The process provides non-selective oxidation of typical MGP organic compounds such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs). Approximately 317 shallow, intermediate and deep injectors have been installed on the Burlington MGP site. A geomembrane has been installed over a portion of the site to provide a barrier above a silty layer of soil to provide proper contact between the reagents and contaminants. Two chemical delivery treatment vehicles have been deployed to assist in the aggressive schedule necessary for site remediation. This paper will discuss the design considerations required to obtain regulatory approval along with a status report of the preliminary results obtained thus far.