Laserfiche WebLink
Hull & Associates Inc. <br />Page 8 <br />4. Sodium Sulfite/Nutrient Injection <br />This injection is conducted to clear the injection lines and to provide for in -situ <br />mixing and penetration of the Provect-IR product. <br />5. Post Liquid Injection - Gas Injection <br />Lastly, the injection lines are cleared of liquids and all injectants are forced <br />into the created formation and upward into the vadose zone. <br />Once the injection cycle is complete, the injection point is capped to allow for the pressurized <br />subsurface to accept the injectants. The targeted saturated zone at the site shall receive <br />calculated dosages of the individual remedial components based on biological and <br />stoichiometric demands and an estimated pore volume based on the known geology of the site. <br />Equipment Description <br />The injections small occur via IET's mobile oxidation injection trailer and IET's direct -push <br />equipment as described: <br />Injection Lines: High Pressure Stainless steel Braided Rubber one inch diameter hoses <br />Injection Trailer: IET Self-contained injection trailer, consisting of: two 120 gallon conical tanks <br />capable of maintaining unto 30% solids as a suspension via lightning mixers; on -board <br />generator, all stainless steel piping system, 2" pneumatic diaphragm pump with an operating <br />pressure of 110 psi.; on -board 25 CFM/175 psig compressor with 120 gallons of air storage; self <br />contained eye wash and safety shower. <br />Injection Rods: IET proprietary injection rods with retractable injection zones and backflow <br />protection Injection zones of 18 inches are to be used in combination with 24" injection AWJ- <br />Rods where appropriate. <br />