Remote Control & Monitoring of Water and Wastewater Facilities
Transcript of Remote Control & Monitoring of Water and Wastewater Facilities
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No More Travel – Remote Control & Monitoring of Water
and Wastewater Facilities
Dakshina Silva – Electrical Engineer (PLC/SCADA)
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Concept of Online Monitoring and Control
Manual operation can be unsafe, unpredictable and expensive
Manual sampling Manual Control
Manual Report
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Concept of Online Monitoring and Control
SENSOR
ANALYSER PLC
Internet
REMOTE
ACCESS
Process automation, remote monitoring & control provide safe,
reliable and cost effective operation
SCADA
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Automated Plant Operation
Existing manual controlled plant can be integrated to fully
automatic operation. CONTROL
LER
DATA PLC
SCADA
DATA
SERVER
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TYPICAL MIXED TECHNOLOGY TELEMETRY SYSTEM
LICENSED
RADIO TOWER
PROCESS SCADA 1 PLC 1
PLC 2 PLC 3
PROCESS SCADA 2
PLC 4
Satellite
BB
DATA LOGGER
PLC 5 PLC 5
TELEMETRY SCADA
DATA SERVER
NETWORK
4G
4G
Internet
REMOTE ACCESS PLC 4 PROCESS SCADA 3
Building Telemetry Network
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Life Cycle Cost
Analysis
HAZOP & CHAZOP
EFFECTIVE REMOTE CONTROL & MONITORING SYSTEM
Four key areas to achieve an effective remote control & monitoring system
Reliability &
Maintainability
Analysis
Process Quality
& Performance
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Best Process Automation and System Integration Practice
State of the art sewage treatment plant - Young Shire Council
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Safe, Quality Performance, Reliable, Low Operating Cost – Young STP
IDEA Tanks
Reuse Water
System
Facility
Management
System
SCADA &
TELEMETRY
Dewatering
System
Internet
SMS/Email Alerts
Automatic Report
Generation
Remote
Monitoring
& Control
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Column1
RETROFITTING EXISTING PLANTS
Benefits of retrofitting existing plants after a systematic process review.
Retrofitting
QUALITY SAFETY
COST
Review process
Evaluate asset
condition
Recognise
opportunities
Benefit analysis
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Case Study– NEW RESUSE PUMP
Installation of additional pump to transfer reuse effluent to the turf farm and sporting field.
Total Project Cost $40,000
Direct Cost Savings $30,000
Payback Period 1.3 Years
WHS Benefits Yes
Improved Reliability Yes
Before After
Internet
Existing
PLC/SCADA
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Case Study– PLC/SCADA UPGRADE of WTP
Upgrading 30 Years old semi automatic process to fully
automatic operation - Water Treatment Plant
Manual back wash operation of 3
filters
Manual adjustments of chemical
dosing systems
SCADA is developed for
monitoring
Total Project Cost $350,000
Direct Savings/Year $60,000
Payback Period 6 Years
WHS Benefits Yes
Improved Water Quality Yes
Improved Reliability Yes
OLC PLC & SCADA
Fully automated
process PLC &
SCADA
Existing Telemetry
SCADA
No logistic/technical support
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Case Study– VARIABLE SPEED DRIVES
Installation of variable speed drives and DO sensor – Reducing IDEA tank aeration
electricity cost
Total Project Cost $100,000
Direct Savings/Year $26,000
Payback Period 4 Years
Improved Reliability Yes
Improved Water Quality Yes
Low Green Gas Emission Yes
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Case Study– NEW LIQUID DOSING SYSTEM
Replace bagged soda with liquid caustic system for process pH control.
• Automated and optimised pH correction.
• Eliminate manual handling (WHS)
Total Project Cost $110,000
WHS Benefits Yes
Improved Water
Quality Yes
Improved
Reliability Yes
Before After
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Take Home Message
• SCADA/Telemetry is current industry best practice and trend.
• Reduced operational costs; improved safety, reliability and water quality.
• Allows Local Water Utilities to demonstrate due diligence in operation.
• Solutions tailored to site/location.
• Software Programming, Site Commissioning & Testing, Operator Training.
• System Integrators and Process Engineers can provide online technical support.
SCADA/Telemetry Benefits
NSW Water Solutions
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Thank You.
?
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TYPICAL MIXED TECHNOLOGY TELEMETRY SYSTEM
LICENSED
RADIO TOWER
PROCESS SCADA 1 PLC 1
PLC 2 PLC 3
PROCESS SCADA 2
PLC 4
Satellite
BB
DATA LOGGER
PLC 5 PLC 5
TELEMETRY SCADA
DATA SERVER
NETWORK
4G
4G
Internet
REMOTE ACCESS PLC 4 PROCESS SCADA 3
Building Telemetry Network