silo 3 - U.S. Department of Energy

Process Uescription for tne bito J rrojecr
Document No. 40430-RP-0003, Rev. 1
Jacobs Project No. 35H19605
September 5, 2003
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94X-3900-F-0 1 430 F0004 Additive and Wastewater Systems
94X-3900-N-0 1438 NO1 05 Additive Mixing and Wastewater Systems
94X-3900-N-0 1447 NO1 14 Domestic and Process Water Systems
An existing domestic water main supplies water to the Process Building, Excavator Room,
Excavator Service Room, Cargo Container Bay, and various outdoor utility stations. As
"domestic water" (System 5 1) passes through various backflow preventers (BFPs), it is re-
designated as "process water" (System 50). Domestic water is supplied only to the safety
shower/eyewash stations; all other users are supplied with process water. The process-
water users are:
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Wastewater Tank (flushing and suspension of solids);
Additive Mix Tank (preparation of mixed additive);
Suction sides of Sodium Lignosulfonate Pump (PMP-44-5000A), Ferrous Sulfate Pump
(PMP-44-5000A), and Additive Charge Pumps A&B (PMP-44-5004A&B) (flushing);
Additive charge headers to Discharge Chute Assemblies A&B (nozzle cleanout); and
0 Type 2 utility stations.
No major process equipment is associated with either System 50 or 51.
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PMP-62-5604: Wastewater Tank Area Sump Pump
0 TNK-62-5600: Wastewater Tank
0 MXA-62-5602: Wastewater Tank Agitator
0 PMP-62-5606: Wastewater Pump
6.5 WASTEWATER SYSTEM (SYSTEM 62)
The following PFD and P&ID illustrate the Wastewater System:
94X-3900-F-0 1 430 F0004 Additive and Wastewater Systems
94X-3900-N-01438 NO1 05 Additive Mixing and Wastewater Systems
6.5.1 Wastewater System Equipment
The Wastewater System comprises the following equipment:
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PMP-62-5642: Excavator Room Sump Pump
0 PMP-62-5404: Excavator Service Room Sump Pump
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0 MXA-62-5602: Wastewater Tank Agitator
0 PMP-62-5606: Wastewater Pump
0 PMP-62-5604: Excavator Service Room Sump Pump
6.5.2 Wastewater System Operation
The Wastewater Tank is a 1400-gal FRP tank located in the Wastewater Tank Area. The
Wastewater Tank Agitator, along with internal baffles, minimizes differences in
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