Flowsheet Development (242-AY-102 Waste Feed Delivery)

Company Performed Work:

AEM Consulting, LLC

Work Description:

The project work scope required development of a preliminary flowsheet for delivery of the hot commissioning feed from 241-AY-102 to the Waste Treatment and Immobilization Plant (WTP).  The flowsheet was developed in accordance with TFC-ENG-CHEM-C-01, Process Flowsheets.  However, due to the preliminary nature of the flowsheet (application projected to be circa 2018) selected requirements in the flowsheet procedure were deferred to future revisions.  The final product document (RPP-RPT-46020) includes a process description and material balances.  Material balances were supported by a simplified heat balance to estimate water evaporation from waste over the extended storage time periods and during heating predicted to occur during tank mixing activities.

A major purpose for the preliminary flowsheet was identification of potential risks associated with completion of the final flowsheet.  This was evaluated by identifying both WTP waste acceptance criteria and tank farm requirements that are potentially applicable to the final flowsheet development.  Many of the WTP waste acceptance criteria were not considered to be finalized at the time of preliminary flowsheet development.  A majority of the requirements were evaluated based on the preliminary flowsheet material balance (evaluation of selected requirements were omitted from the study scope), risk of non-compliance with requirements identified, and potential methods for mitigating risks were identified.

Documents produced:

  • RPP-RPT-46020, Tank 241-AY-102 Waste Feed Delivery Flowsheet
  • AEM-WRPS-2010-CN-001, Transient Heat Balance and Water Loss Supporting 241-AY-102 Flowsheet Material Balances
  • SVF-1873, AY-102 Inventory Estimate
  • SVF-1874, AY-102 Flowsheet Input Data
  • SVF-1875, AY-102 Flowsheet Material Balance

AEM-WRP-2010-CN-002, Generic Transient Heat Balance and Water Loss Estimate Supporting Flowsheet Material Balances

Start / End Date:

December 2009 through June 2010

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