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• 0 <br /> The wet sodium bicarbonate filter cake from the centrifuge will be transferred with <br /> screw conveyors and a screw feeder into a dryer that will dry the material with an <br /> upflowing stream of hot gas. The hot dried material will pass from the dryer into a <br /> cooler that will lower the product temperature for handling and storage. The cooled <br /> product will drop out of the cooler into a conveyor which will deliver it to a bucket <br /> elevator. The material will be sampled and discharged into a screw conveyor to <br /> distribute the product material to a series of six to eight product storage bins. <br /> The six to eight product bins will allow for feeding a truck filling system in a metered <br /> fashion. Approximately ten (10) 25 ton trucks per day will be loaded at the site for <br /> direct delivery to buyers or to AmerAlia's railroad/truck loadout station in Rifle. <br /> D. Leach Fluid Conditioning and Downhole Iniection <br /> In this section of the process, barren liquor streams from the crystallizer system and <br /> the bicarbonate dewatering system will be combined with fresh makeup water, <br /> heated, and continuously injected into the underground solution mining cavity. <br /> Combined cool thickener overflow, diluted centrifuge filtrate, and makeup water will <br /> be preheated through counter-current (pre-cooling) heat exchangers in the <br /> crystallizer system. A high-pressure injection pump will transfer the preheated fluid <br /> through a steam heater that will heat the stream to approximately 300°F. The <br /> injection pump will operate at a pressure of up to 400 psi in order to force the barren <br /> leach liquor through a steam heater and surface injection pipelines to the individual <br /> well heads, down the well casings, through the leach cavities, up the production <br /> tubing, through the surface return pipelines to the plant, and through the plant feed <br /> conditioning system. <br /> E. Liquid Waste Evaporation and Disposal <br /> Various liquid waste streams will be generated in the operation. These wastes will <br /> be transferred into lined ponds and reduced in volume by solar evaporation. <br /> Liquid waste streams will include cooling tower blowdown, boiler blowdown, water <br /> treatment blowdown, backwash streams from the plant feed liquor filters, and well <br /> field pipeline drainage. These waste streams will flow into collection sumps in the <br /> plant from which they will be pumped to the evaporation ponds. <br /> G:\LMW\78545.002\Reclamation\Reclamexh.DOC D-33 <br />