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Effluent Total Nitrogen: <br /> The effluent TN concentration ranged from 7.8 to 23 mg/L during the evaluation, with an average <br /> concentration of 15 mg/L and a median concentration of 14 mg/L. The Eljen DN450 successfully met the <br /> requirements of Standard 245 by reducing the influent TN by 57%, which exceeds the pass/fail criteria of <br /> 50%. <br /> Nitrogen Loading: <br /> Over the course of the evaluation the influent Total Nitrogen loading averaged 0.15 lbs/day. The Eljen <br /> DN450 achieved an average reduction of 0.07 lbs/day. <br /> Nitro en Redinction °o <br /> 90 <br /> 80 ._............................_......_.............._......_......_......_.............. ........... <br /> f �4�115ti <br /> 70 <br /> �i1111116 <br /> ' I <br /> � I <br /> 60 Q..... ......_....��.... ..1.._......_. ... <br /> ..I IiI: T <br /> 50 . ............................................� ..... .I.. '.._..... ............... ....... <br /> 40 <br /> �.. <br /> 40 _............................_......_............� <br /> 30 ...................................................... ..._......_......_.. ................. ! ....... ;........ <br /> 20 <br /> 0 5 10 15 <br /> Weeks <br /> Figure 7: Total Nitrogen <br /> 15/10/055/0030 This report may not be reproduced in whole or in part Page 19 of 64 <br /> Final Nitrogen Report without the expressed written consent of NSF International June 2019 <br />