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MWMC FACILITIES PLAN <br /> <br />FIGURE 6.5.2-1 <br /> <br /> Digester Phasing <br /> MWMC Facilities Plan, Eugene-Springfield <br /> (Annual Average Conditions, 20 day SRT, O. 15 lb [/SS/day) <br /> <br /> 4 Digeslers t <br /> ....... Upper Limil F~ow <br /> .............. ~'"'"'"'""" All Units Online <br /> ~One Un/! Offline <br /> i <br /> <br /> 3 D~geslers <br /> <br /> ~ 3.o~ - <br /> ~ ~ ~ 3 Diges[ers <br /> ~ I <br /> <br /> 2.o~ <br /> <br /> I <br /> <br /> ~ ~o,~ ~ 4o,~ ~ ao,o~ ~ 8o,~ ~,~ ~o,~ <br /> <br /> Upper Limit Dige~ler Inllu~nl Flow (~) <br /> <br />TABLE 6,5.2-1 <br />Comparison of Digestion Treatment Processes <br />MWMC Fac/I/ties Plan, Eugene-Springfield <br /> <br /> Max VSS <br /> Loading at Max Pathogen Modifications <br /> SRT at Max Operating Month (Ibs/ft3- Level Required ! New <br /> Process Month (days) Temperature day) Produced Equipment <br /> <br />Conventional 15 Mesophilic 0.15 Class B N/A <br />(Mesophilic) (35 °C) <br /> <br />Pre- 30 min / 15 -70°C / 0.20 Class A Medium <br />Pasteurization Mesophilic <br /> <br />TPAD 5 / 10 Thermophilic / 0,30 Class A (when Moderate <br /> Mesophilic Thermophilic <br /> operated in <br /> Batch or <br /> Draw/Fill/Hold <br /> mode) <br /> <br />6-34 MWMC_6.0_REV11.DOC <br /> <br /> <br />