globally coordinated distributed storm water management system€¦ · population: 100,886...
TRANSCRIPT
Globally Coordinated Distributed Storm WaterManagement System
Luis A. Montestruque, Ph.D., EmNet, LLC
Michael D. Lemmon, Ph.D., University of Notre Dame
CySWater, 2015
Combined Sewer Overflows
Size of the Problem
� 772 cities
� 46,000,000 people
� 3,300,000,000 m^3/yr
� $100,000,000,000
San Francisco, CA
Seattle, WA
Chicago, IL
New York, NY
South Bend, IN
Population: 100,886Established: 1865Treatment Plants: 1 (260,000 m^3/day)Outfalls: 36CSO Overflow: 7,500,000 m^3/yearAbatement Plan: $700,000,000
South Bend, Indiana
Possible SolutionsPassive Active
Wastewater plant expansion
Separation
Atlanta 27% separation @ $900M
In-Line Storage
Chicago TARP $3.2B
Off-Line Storage
Problem Characteristics
Problem Characteristics� Saint Venant 1-D equation
��
��+ �
��
��+ �
��
��+ � � − � = 0
acc. conv. pres. grav. fric.
� Highly non-linear dynamics: pumps, overflow structures, runoff
� Non deterministic dynamics:manual operation, precipitation
Problem Characteristics
Problem Characteristics
CSS SCADA Points: 17CSOnet® Points: 110
Real Time Monitoring System: INode
Composite Manhole CoverHS20 rated, corrosion resistant
Embedded AntennaRadiate signal out of manhole cover
Explosion Proof BoxClass 1 Div 1 Safe, corrosion resistant
Chasqui ProcessorMica2-based, rugged IO, 2ppm RTC
4 D-size Lithium Battery1 Yr Life, Temperature Resistant
Max Stream Radio1 Watt, 900MHz SS, 115kbps
Cam Lock Mechanism Prevent cover from popping out
Permanent PowerAlways on
Real Time Monitoring System: GNode
ARM SBC running LinuxHigh level network maint. & comm.
Max Stream RadioCommunicate with sensor network
Cellular ModemWide Area Network
Real Time ClockSynched with NIST clocks
Traffic Light Pole Mounted3 – 6 m above grade
12
Name: R.3b.1, Portage and BlaineNode Number: 04643Gradient: 20Sensors: NAPower: N
Name: I.3a.2, TMP 2-1Node Number: 42041Gradient: 20Sensors: 1 pressurePower: N
Name: R.3a.1, Kinyonand ShermanNode Number: 19013Gradient: 10Sensors: NAPower: N
Name: I.3b.2, TMP 4-1Node Number: 33983Gradient: 30Sensors: 1 pressurePower: N
Name: G.3a.1, CSO 3Node Number: 19892Gradient: 0Sensors: 1 existing, A/V meterPower: Y
Name: I.3b.1, for CSO 4Node Number: 19067Gradient: 20Sensors: 1 pressurePower: N
Name: I.3a.1, for CSO 2Node Number: 03516Gradient: 30Sensors: 1 pressurePower: N
Name: G.3a.2, CSO 2Node Number: 32309Gradient: 20Sensors: 1 pressurePower: N
Name: G.3b.1, CSO 4Node Number: 30514Gradient: 10Sensors:1 pressurePower: N
Real Time Monitoring System
Real Time Monitoring System� 800 km of sewers
� 50 km2 of CSO area
� 111 sensors
� Monitor: � 36 outfalls,
� 27 interceptor sites
� 42 trunkline sites
� 5 basins
Visualize
Watchdog
Distributed Control
CSO Structure
St. Joseph River
WWTPInterceptorTrunkline
Dry Weather
50%cap.
Wet Weather: On SetDowntown
60%cap.
Suburbs
Wet Weather: Mid Storm
100%cap.
DowntownSuburbs
Wet Weather: End of StormDowntown
80%cap.
Suburbs
Consumer Supplier Algorithm� Agent-Based control
� Network nodes trade capacity
� Downstream nodes are suppliers
� Upstream nodes are consumers
� Consensus problem
capacity
cost
gallons
cost
Local Optimization
Minimize cost
Compete for WWTP
• Default is closed• Likelihood of overflow• Interceptor Capacity
• Downstream• At “time of impact”
• Calc. Additional Flow• Compete for Int. Capacity• Open Valve
Distributed Control
Control Valves
Interceptor
Existing Throttle
Trunk Line
Diversion Structure
Overflow Line
New Throttle
GnodeControlled
Valve
Results
� ~70% CSO reduction
� ~25% due to CSOnet
� Cost Reduction: $150M
Future WorkUrban Water Cycle Management
� Drinking Water• Energy• Security• Leak Detection
� Stormwater• Flood Protection• Harvesting
� Receiving Water• Nutrient Loading due to agricultural ops.• Climate Change
� Green Infrastructure• Maintenance through crowd sourcing• Sensor fusion
Other Research Initiatives
� Drinking Water Management
� Real Time Drainage Tile Management
� BTEX monitoring of ground water
� River Water Quality Monitoring
Impact
100% DWO Reduction from 2008-2011
30
Combined Sewer Overflows