saltstone enhancements jan2012.ppt - srs
TRANSCRIPT
1
Saltstone Enhancements
Presentation to the Citizens Advisory Board
January 24, 2012
Karthik Subramanian
Chief Technology Officer
Savannah River Remediation
2
Agenda
• Salt Waste Processing Flowsheet
• Current Saltstone Process
• Saltstone Enhancements
• Current Status
3
Salt Waste Processing
Saltstone has begun the facility transformation that will enable the continued fulfillment of all mission requirements:
• Workforce Safety
• Process Safety
• Environmental Stewardship
• Life Cycle Objectives
SaltstoneProcessing
Facility
SWPF
SCIX
Tank 50 or Saltstone Feed
Facility
SaltstoneDisposalFacility
Tank Farm
ARP/MCU
ETF & H Canyon
~100 kgal DSS / wk
~270 kgal DSS / wk
~5 kgal DSS / wk
~40 kgal DSS / wk
Legend
Current
Future
4
Current Saltstone Process
Mixer
“Hopper”
Grout Pump
Clean Cap BatchTank
Salt Feed Tank
Drainwater
VAULT #4
A B C E F
LKIHG
D
J
From HTF/ETP
Premix
WeighHopperWeigh Hopper
AirBlenders
FeedBin
Silo #1Spare
Silo #2
Flyash
Silo #3
Cement
Silo #4
Slag
Phased upgrades are planned to address risks due to
aging equipment and existing system capabilities.
• Enhanced Low Activity Waste Disposition (ELAWD)
• Saltstone Disposal Unit #2
• Salt Solution Receipt Tanks
5
Current Outage – Phase I
Mixer
“Hopper”
Grout Pump
Clean Cap BatchTank
Drainwater
VAULT #4
A B C E F
LKIHG
D
J
Premix
WeighHopperWeigh Hopper
AirBlenders
FeedBin
Silo #1Spare
Silo #2
Flyash
Silo #3
Cement
Silo #4
Slag
Salt Feed Tank
From HTF/ETP
Scope
1. Installing a redesigned grout hopper (Increased operating margin)2. Replacing the mixer (End of life)3. Installing a redesigned mixer chute to incorporate dry feed buildup
monitoring (Enhanced process monitoring)4. Installing redesigned process piping with optimum slopes,
minimization of elbows, etc. (Improved maintainability)5. Installing a redesigned high pressure flush system (Improved
maintainability)6. Connecting new Saltstone Disposal Units (Required capacity, State
of the Art facility)
SDU#2
Cell 2A Cell 2B
Salt Disposal
Unit #2
Mixing &
Transfer
System
6
2013 Modifications – Phase II
Mixer
“Hopper”
Grout Pump
Clean Cap BatchTank
Drainwater
VAULT #4
A B C E F
LKIHG
D
J
SDU#2
Cell 2A Cell 2B
Scope
1. Replacing screw feeders (Obsolete equipment)2. Installing additional dust collectors (Increased
operating margin)3. Enhancing dry feed equipment (Obsolete
equipment, Increased operating margin, Improved maintainability)
4. Installing larger Salt Solution Receipt Tanks (Increased operating margin)
5. Improving balance of plant equipment (Obsolete equipment, Increased operating margin, Improved maintainability)
Premix
WeighHopperWeigh Hopper
AirBlenders
FeedBin
Silo #1Spare
Silo #2
Flyash
Silo #3
Cement
Silo #4
Slag
Dry Feeds
System
From HTF/ETP
Salt Feed Tank
SSRT#1Tank
SSRT#2Tank
From HTF/ETP
Salt Solution
Receipt Tanks
Salt Feed Tank
Drainwater
7
24/7 Modifications
Mixer
“Hopper”
Grout Pump
Clean Cap BatchTank
Drainwater
VAULT #4
A B C E F
LKIHG
D
J
SDU#2
Cell 2A Cell 2B
SSRT#1Tank
SSRT#2Tank
From HTF/ETP
Salt Feed Tank
Drainwater
Premix
WeighHopperWeigh Hopper
AirBlenders
FeedBin
Silo #1Spare
Silo #2
Flyash
Silo #3
Cement
Silo #4
Slag
Scope
1. Infrastructure for 24/7 operation support facilities (Required capacity)
2. Safety Basis documentation change to operate on a 24/7 shift (Required capacity, Increased operating margin)
3. Acquire and train personnel for 24/7 operations (Required capacity)
8
As of Nov 30, 2011
Data (gallons—end of month) Oct-11 Nov-11 Dec-11 Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12
Actual Tank 50 Processed (Cumulative) 381,676 812,437 #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A
ELAWD Outage700 kgal
1,200 kgal
-
250
500
750
1,000
1,250
1,500
thousa
nds
of
gall
ons
Actual Tank 50Processed
(Cumulative)
Forecast Tank 50Processed(Cumulative)
ProductionMilestone
Current Status
• Vault 4 Cell B Successfully Filled
• Phase I Outage In Progress and On Schedule
Note - Concurrent MCU Life Extension Outage Planned
• FY2012 Processing Operations On Schedule
9
Acronyms
ARP – Actinide Removal Process
DSS – Decontaminated Salt Solution
DWPF – Defense Waste Processing Facility
ELAWD - Enhanced Low Activity Waste Disposal
ETF – Effluent Treatment Facility
HTF – H Tank Farm
MCU – Modular Caustic Side Solvent Extraction Unit
SCIX – Small Column Ion Exchange
SDU – Saltstone Disposal Unit
SSRT – Salt Solution Receipt Tank
SWPF – Salt Waste Processing Facility