Columbus Collection and Treatment System Real Time Wet Weather - PowerPoint PPT Presentation

Columbus Collection and Treatment System Real Time Wet Weather Management Presenters Gary Hickman, JPWWTP Plant Manager Ed Heyob, CDM Smith Automation Engineer

Collection System

Control Locations on Trunk Sewers Rhodes Park Alum Creek WST Storm Tanks FDS JPWWTP BIS SWWTP

Major Conveyance Limitations OSIS Whittier St. Scioto STORM TANK 3 River STORM TANK 2 STORM TANK 1 DSR 83 FRANKLIN MAIN OVERFLOW DESHLER TUNNEL OSIS conveyance is limited by the DSR83 overflow, Berliner Park flood protection WEST SIDE or plant treatment capacity. SEWERS FDS JPWWTP 150 MGD BIG WALNUT INTERCEPTOR SEWER OVERFLOW SWWTP 330 MGD

Whittier Street Regulator Gates To Berliner Park Regulator Gates From/to DSR83

Visualizing the Decisions

What is Real Time Data • Sample inputs 3x more than controlled action • Regulator gate movement effects noticed in less than 5 minutes • Operations is accustomed to 1-2 second updates within plant • Ideal monitoring around Whittier Street would update at least every 30 seconds

Ability to Learn from Each Event • There are more items than can be easily trended together Which trend • Trends loose some line was that? of the dynamic “feel” of watching the system behave Historical replay example

Constraints on the Leading Edge of Event

System Constraints Exceeded

System Draw Down After Event

So Close Together, but Different Responses DSR83 1 foot difference Downstream OSIS

Optimization of DSR83 Constraint

Further Constraint Management Improvements • Berliner Park Level • Assisted or Automatic control of regulator gates • OARS Tunnel

Berliner Park Level Sensor • Solar Powered • Readings every 4 seconds • Intrinsically safe instrument • Low powered radio • Direct I/O on radio

Real Time Control Feasibility Study • Builds upon lessons learned through efforts so far • Identify other possible controls and monitoring • Evaluate how to apply them to the collection and treatment system

OARS Tunnel UPPER OARS TUNNEL SIMPLIFIED PROFILE LOWER OARS TUNNEL SIMPLIFIED PROFILE WHITTIER 725 STREET UP 720.85 STREAM 719.75 FLOOR LEVEL 715.6 OSIS 715.1 714.85 TO JP FLOOR SLAB INFLUENT 710.57 710 OSIS 709.7 DOWN 54" 707.60 OSIS 706.6 STREAM OVERFLOW 704.6 LEVEL 704.5 STORM 705.0 TO RIVER 702.57 703.3 702 701.30 FDX TANKS 698.48 MAX MAX DESIGN 700 697.54 700 700 698.57 WEIR 699.0 DESIGN OSIS DSR OSIS WATER LEVEL BERLINER 696.3 WATER 83 TO PARK LEVEL PROJECTION FDS 692.3 12' 12' 691.14 GRAVITY FLOW 689.34 REGULATOR 686.6 EMERGENCY GATES SHUT OFF TO FDS GATES 678.60 675 SHAFT #3 OARS CAPPED SHAFT OFF #4 OARS PUMPING: 72.39 MGD OARS OARS SHAFT #2 650 SHAFT #1 (OSS) (ODS) 625 OARS SHAFT #6 OARS SHAFT 600 #5 575 FLAP 565.84 OARS TUNNEL GATE 566.48 OARS TUNNEL 560.91 FLAP 556.14 GATE 553.09 OARS TUNNEL 551.97 550.87 550 546.48 OARS 542.35 SCREEN 531.01 530.89 530.85 525 OARS PUMPS 511.64 OARS GRIT PUMPS 505.6 500.6 500 OARS Tunnel and pump station adds many more options for managing constraints

The End Questions Gary Hickman JPWWTP Plant Manager Ed Heyob CDM Smith Automation Engineer