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mg/L for maximum transmittance increase. However, smaller doses will also <br />increase the transmittance to a certain degree. In addition, a dose of 30 mg/L chlorine <br />will yield visually clearer water. Lower chlorine doses still contain some visible color <br />in the water. A comparison between a chlorine dose of 24 mg/L Cl and the optimum <br />dose of 30 mg/L Cl is shown in Figure 3.4. The dose with 24 mg/L of Cl still has a <br />yellow color while the 30 mg/L dose is mostly clear. Higher doses of chlorine do not <br />increase the visual clarity of the water. <br />24 mg/L as Cl 30 mg/L as Cl <br />Figure 3.4: Comparison of Color between Chlorine Doses <br />E. Impact on the Biosolids <br />The treatment of leachate at the WWTF would generate additional biosolids. The <br />WWTF would have to process, handle and dispose these additional biosolids. There <br />was no practical way to quantify the additional biosolids generated by the leachate <br />during the study, but quantity of biosolids produced by the leachate can be calculated <br />based on the loading associated with the leachate flow. <br />An estimated quantity of additional biosolids generated by 35,000 gallons per day <br />would be approximately 636 dry Lbs/day or 2,716 gpd at 2% solids. <br />Prepared by: Bolton & Menk, Inc. Results and Discussion <br />Waste Management/Elk River Leachate Pilot Study I T21.109643 Page 15 <br />