Key factors that affect the performance and cost of an SVE system include the following:
1. The concentration, mass, and distribution of contaminants in the soil.
2. Geology and heterogeneity of the subsurface.
3. Cleanup goals.
4. Requirements for discharging emissions to the atmosphere.
These factors affect the number of vapor extraction wells, vacuum level required, type of off-gas treatment, and length of time required for treatment.34
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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.