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Figure 2.2: Primary Hose Pump <br />The leachate was conveyed through a 2 -inch HPDE line and discharged into the <br />open channel downstream of the grit chamber. The pump was run continuously <br />during the duration of the pilot study. <br />The goal of the pilot study was to pump up to 35,000 gallons per day (25 <br />gallons per minute) of leachate into the wastewater plant. Since the primary <br />pump could only pump at 21 gpm, a second pump was needed to add an <br />additional 4 gpm to achieve the desired 25 gpm. The second pump was added <br />into one of the 21,000 -gallon leachate storage tanks. The second pump was a <br />small 1 HP submersible pump, capable of producing up to 90 gallons per <br />minute. <br />The second pump was positioned in the bottom of one of the 21,000 -gallon <br />tanks. The pump location can be seen in Figure 2.3. A 2 -inch PVC discharge <br />line was connected to the pump. To control the flow rate through the 2 -inch <br />Prepared by: Bolton & Menk, Inc. Experimental Set -Up <br />Waste Management/Elk River Leachate Pilot Study I T21.109643 Page 4 <br />