A full-scale cleanup was performed using SVE to treat MTBE and benzene from a UST leak at a service station in California. Soil at the site consists of 3 m (10 ft) of clay overlying sand and gravel. The SVE system consisted of five vapor extraction wells and a 19.8m3/min (700ft3/min) vacuum system. Thermal oxidation was used for off-gas treatment. After 2.2 years of SVE operation, the concentration of MTBE in the groundwater (measured in 11 monitoring wells) was reduced from as high as 8900 to 21 ^g/L and the concentration of benzene was reduced from 670 to 0.5 ^g/L (both more than 99% reductions). The thermal oxidizer destroyed greater than 95% of the VOCs in the off-gases, and remediation at the site is reported to be complete. As of June 2003, the cost data available depict a total remediation cost of USD140,000.31
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.