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MWMC FACILITIES PLAN <br /> <br />anticipated. Table 7.2.1-1 summarizes the existing and proposed 2025 trait process, <br />equipment, and design criteria. <br /> <br />FIGURE 7.2.2-1 <br />Secondary Cladfier Enhancements <br />MWMC Facilities P/an, Eugene-Springfield <br /> <br /> Relocate Launder Trough <br /> New Scum to Exterior Wall of Cladfler, <br /> Skimmer Arms -,., /New Ene[gy ',~ <br /> "~ _. ,/-Dissipating <br /> - ~ /inlet ~ New Floc <br /> <br /> Manifold with <br /> ' - Adjustable Orifices <br /> <br />7.2.3 Primary CLarification Enhancements <br />Recommended Enhancements to each of the existing primary clarifiers include the <br />following items and are shown on Figure 7.2.3-1: <br /> <br /> New energy-dissipating inlet <br /> New weir and scum baffle <br /> New feedwell <br />,, New scum skimmer arms <br /> New density current baffle <br /> <br />Modifications to the operation of the existing primary clarifiers include thickening of <br />primary sludge outside the clarifiers. This requires a higher primary sludge flow rate to <br />keep sludge from accumulating at the base of the clarifiers. New facilities required to <br />accommodate these operational changes include the following. Table 7.2.1-1 summarizes the <br />existing and proposed 2025 trait process, equipment, and design criteria. <br /> <br /> New primary sludge pumps <br /> New gravity thickeners, or gravity belt thickeners, or other unidentified technology <br />,, New thickened primary sludge pump station <br /> <br />7-4 MWMC_70_REV4,DOC <br /> <br /> <br />