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Back to Basics: 7 Essential Components of Your Wastewater System
Darrell Interess
Triumvirate Environmental
Meet Your Moderator
2
James Ciccone
During This Webinar
3
All lines will be muted.
Communicate via the questions tab in your
webinar panel.
Unanswered questions will be responded to
after the webinar.
Webinar recording and slides will be emailed
to you tomorrow.
Meet Your Presenter
4
Darrell Interess
Overview
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• Learn about seven of the essential wastewater system components, including tanks, pumps, sensors, and the human operators themselves
• Get information to help determine if your current equipment is working as intended, if it’s stretched beyond its limits, or if it’s overkill
• Find out if your alarm conditions, component failures, and chemical usage are typical or if they are signs of bigger problems
• Receive tips to improve overall operational efficiency and reliability of your wastewater systems
Wastewater Treatment System
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Poll Question
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What aspect of your wastewater system do you struggle with the
most?
Talking Points for Each Component
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• What is it?
• Why does it matter?
• What can go wrong? What should we look for?
Image: Burt Process
Tanks
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Types of Tanks
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• Cylindrical
• Rectangular
• Flat bottom
• Conical bottom
• Baffled
Image: Chemtainer
Image: Maltz Sales
Tank Materials of Construction
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Plastic
Fiberglass
MetalImage: Burt Process
Tanks: Why Do They Matter?
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• Mixing
• Measuring
• Transferring materials
Image: Burt Process
Tanks: What Can Go Wrong?
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Unusual Odor
Damage or Structural Failure
Image: ChemIndustrial Systems
Sensors
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Sensors
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• Measure parameters
• Provide data
• Examples of parameters to measure:
- pH
- ORP
- Level
- Flow
- DO
- Conductivity
- ChlorineImage: Burt ProcessImage: Walchem
Sensors: Why Do They Matter?
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Image: Burt ProcessImage: Walchem
Inputs and Outputs
Periodic Maintenance
Sensors: What Can Go Wrong?
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Image: Burt ProcessImage: Walchem
Dirty/Fouled
Failure (slow and rapid)
History and trending
Sensors: Maintenance Considerations
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Image: Burt ProcessImage: Walchem
Cleaning
Calibration / Verification
Required Supplies
Spares
Control System
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Control System
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• Combination devices
• Power on/off motors
• Activate/deactivate switches
• Hard-coded “brain”
Image: Burt Process
Image: Electro-Intro.com
Control System: Why Does It Matter?
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It controls everything (or just about) that happens in the process
Control System: What Can Go Wrong?
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• Wire connections
• Power surges/fluctuations
• Clicking, chattering
• Sparking/arcing
• Fault lights/horns
• Periodic testingImage: Burt Process
Control System vs. Controller
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• What does a controller do?- Supplies powers sensors
- Receives signals from sensors
- Often transmits signals to another device
Image: Burt Process
Image: Walchem
Controllers
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Image: Burt Process
Image: Walchem
Single-parameter
Multi-parameter
PLC
SCADA
Pumps
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Pumps
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Transfer material from one place to another, often
through a process.
Image: Colfax Corporation
Pumps: Why Do They Matter?
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• Affect changes
• Process parameters
• Accurate measurement
Image: PumpFundamentals.com
Types of Pumps
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• Centrifugal
• Self-priming
• Progressing cavity
• Diaphragm
• Submersible
• Metering
• PeristalticImage: Burt Process
Image: Walchem
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Failure
Performance deterioration
Listen and feel
Observe and track
Image: Burt Process
Pumps: What Can Go Wrong?
Pumps: What Can Go Wrong?
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Image: Triumvirate Environmental
Mixers & Agitators
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Mixers & Agitators
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Goal is to keep material (liquid) homogeneous through continuous motion.
Image: SPX Lightnin
Mixers & Agitators
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Impeller (paddle)
Static
Fine-bubble diffusion
Image: Koflo Corporation
Image: Xylem
Mixers & Agitators: Why Do They Matter?
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• Homogenous solution
• Representative reading
• Sensor position
• Solids/Floc
Image: Dynamix
Mixers & Agitators: What Can Go Wrong?
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Installation and rotation
Blades and nozzles
Noise
Vibration
Observe and track sensor readings
Image: ETS Environmental
Poll Question
3
6
Which of these best
describes your
wastewater
system?
Filters
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Types of Filters
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• Screens
• Strainers
• Particulate
• Ion exchange resin
• Activated carbon
Image: Hayward Flow Control Image: ResinTech
Filters: Why Do They Matter?
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Downstream protection
ContaminantsImage: Rosedale products
Image: HomeDepot
Filters: What Can Go Wrong?
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Loading
Maintenance
Image: Rosedale products
Operators
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Operators
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• Uptime
• Scheduling
• Collecting & using data
• Regulatory reporting
Operators: Why Do They Matter?
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• The human brain
• Make decisions based on inputs
• Can predict an outcome before it happens
• Respond to malfunctions
• Ensure supply of spares
Operators: What Can Go Wrong?
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• People first
• Listen to them
• Ask questions
• Share information
How It All Works Together
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Summary
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• Overview of major components of most wastewater treatment processes
• General purpose of each component
• Common symptoms and the potential problems that they indicate
• How you can tune-in to the system to identify problems early
• Coming together to work together to reach a common goal or output:
Treated Water
