Clean Water Professionals of Kentucky & Tennessee Webinar … · 2020-01-28 · Enhanced Source...
Transcript of Clean Water Professionals of Kentucky & Tennessee Webinar … · 2020-01-28 · Enhanced Source...
Enhanced Source Control Through Smart Sensor Technology
Clean Water Professionals of Kentucky & Tennessee Webinar
January 28, 2020
Joshua Balentine
Senior Associate, Project
Manager
• Objectives of the Pretreatment Program:
• Prevent the introduction of pollutants into POTWs which will cause interference
• Prevent the introduction of pollutants into POTWs which will cause pass through
• To improve opportunities to recycle and reclaim municipal and industrial
wastewaters and sludges
Pretreatment Program Objectives
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• These objectives are ensured by the following minimum source control
requirements:
• Control authority sampling once per year
• Control authority inspections once per year
• Industrial User sampling twice per year
• In cases of more frequent sampling
• City in most cases doesn’t have access to real-time meters
• City may not received the data until the next month
• Continuous and monthly data may be generalized not showing full impact of
discharge
Pretreatment Program Monitoring Requirements
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Paradigm Shift
Brown and Caldwell Image Source: https://www.worldbank.org/en/topic/water/publication/wastewater-initiative
• Monitoring Industries more frequently
• Monitoring for emerging contaminants
• Installing smart sensor network at industries
• Installing smart sensor network in the collection system
Enhanced source control is used to not only intended to reduce the
pollutant concentrations to the POTW, but to ensure optimization of the
WRRF and beneficial reuse of valuable byproducts
What is Enhanced Source Control?
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• The City of Memphis has a food and beverage facility
• Facility is required to monitor pH once time per day
• pH limits are 5.5 – 10 s.u.
• The facility achieves a high level of pH compliance, with some noncompliance
• The City installed continuous pH recorder
Example of Enhanced Source Control?
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• What if we could monitor SIUs more frequently for the following parameters:
• What if we can view all of this data on our computers, phone, or tablet in real-
time?
Enhanced Source Control
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• pH
• Flow
• BOD
• TSS
• COD
• Ozone
• Water Level
• Salinity
• Conductivity
• Nitrate
• Nitrite
• Hydrogen Sulfide
• Total Organic Carbon
• Dissolved Organic Carbon
• Assimilable Organic Carbon
• Turbidity
• Dissolved Oxygen
• Chlorine
• Not all data collection requires “significant” human
involvement
• A vast array of parameters can be collected at high
frequency with new technology sensors
• Data can be collected, transmitted and analyzed in
near real-time
• Literally hundreds of
devices are available
for dozens of WQ
parameters
What do we mean by “smart” sensors
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• Assessing collection system
corrosion related to extreme pH
• Assessing COD loading related to
PAA demand
City of Memphis Smart Sensor Pilot Test
• Water quality parameters
• COD
• BOD
• TSS
• pH
• UVT (254nm)
• UVA “fingerprint”
• Locations
• WRRFs influent
• Five SIUs
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s::can lyser systems are being used in harsh environment
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Sensor signals can be “read” in real-time from mobile devices
Screen-shot
from iPhone
shows industry
exceedances
during holiday
weekend
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Current operations treat system data retrospectively
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pH
(s.u
.)
Stiles pH Industry C Industry B Industry A
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WWRF
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Data Integration
Data Cleaning
Data Augmentation
Descriptive Analytics
Diagnostic Analytics
Predictive Analytics
Prescriptive Analytics
The path to “smart” operations requires a platform
Organize
CompleteEnsure
accuracy
Why did it
happen?
What will
happen?
Make it
happen
What
happened?
Development progression
Op
tim
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tio
n/co
ntr
ol p
rogre
ssio
n
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A smart utility compiles
this data, analyzes it, and filters
the information based on the individual
user’s needs to better meet a utility’s overarching
business objectives. This platform allows utilities to
gracefully adapt to changes in technology, growth, and regulations.
Enhanced Source ControlSmart Utilities feed into Smart Cities
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Joshua Balentine
Senior Associate, Project Manager
Brown and Caldwell | Memphis, TN
T 615.238.2080 | C 901.570.1253