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Wastewater Fundamentalsand other
Operator Training Resources
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Game Changing Education• Based on ABC’s Need-
to-Know criteria• Utilizes WEF publications• Reflects current
knowledge• Peer-reviewed• Represents the expertise
of hundreds of water quality professionals.
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Graphics Intensive
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Vendor Supplied Images
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RealWorldPhotos
All in full
color!
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Infographics
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Pond Biology showing
links between
organisms
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Accessible Language
• Nitrification is the two-step biological oxidation of ammonia-nitrogen to nitrite and nitrate using oxygen as a terminal electron acceptor.
• Some bacteria obtain energy from ammonia (NH3) or nitrite (NO2). This process is called nitrification.
X
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Relatable AnalogiesExplain Complex Topics
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Bacteria as Combustion Engines
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Definitions within Main
Text IncreaseReadability
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pH is expressed in standard units (SU)...
Discussed in more detail in Chapter 2.
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Step-by-Step Math Examples
• Uses ABC formulas• English and metric solutions• Easy to follow
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Step 1 – Convert the influent flow from mgd to gpd.
7.5 𝑚𝑚𝑚𝑚𝑚𝑚 𝑔𝑔𝑔𝑔𝑚𝑚𝑑𝑑
1 000 000 𝑔𝑔𝑔𝑔𝑚𝑚1 𝑚𝑚𝑚𝑚𝑚𝑚 𝑔𝑔𝑔𝑔𝑚𝑚
= 7 500 000 𝑔𝑔𝑔𝑔𝑚𝑚
Step 2 – Find the total surface area of the clarifiers.
2 𝑐𝑐𝑚𝑚𝑔𝑔𝑐𝑐𝑚𝑚𝑐𝑐𝑚𝑚𝑐𝑐𝑐𝑐𝑐𝑐 7850 𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓1 𝑐𝑐𝑚𝑚𝑔𝑔𝑐𝑐𝑚𝑚𝑐𝑐𝑚𝑚𝑐𝑐𝑐𝑐
= 15 700 𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
Step 3 – Calculate the surface overflow rate.
𝑆𝑆𝑆𝑆𝑐𝑐𝑐𝑐𝑔𝑔𝑐𝑐𝑐𝑐 𝑂𝑂𝑂𝑂𝑐𝑐𝑐𝑐𝑐𝑐𝑚𝑚𝑂𝑂𝑂𝑂 𝑅𝑅𝑔𝑔𝑓𝑓𝑐𝑐,𝑔𝑔𝑔𝑔𝑑𝑑𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
=𝐼𝐼𝐼𝐼𝑐𝑐𝑚𝑚𝑆𝑆𝑐𝑐𝐼𝐼𝑓𝑓 𝐹𝐹𝑚𝑚𝑂𝑂𝑂𝑂,𝑔𝑔𝑔𝑔𝑑𝑑
𝐴𝐴𝑐𝑐𝑐𝑐𝑔𝑔, 𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
𝑆𝑆𝑆𝑆𝑐𝑐𝑐𝑐𝑔𝑔𝑐𝑐𝑐𝑐 𝑂𝑂𝑂𝑂𝑐𝑐𝑐𝑐𝑐𝑐𝑚𝑚𝑂𝑂𝑂𝑂 𝑅𝑅𝑔𝑔𝑓𝑓𝑐𝑐,𝑔𝑔𝑔𝑔𝑑𝑑𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
=7 500 000 𝑔𝑔𝑔𝑔𝑑𝑑15 700 𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
𝑆𝑆𝑆𝑆𝑐𝑐𝑐𝑐𝑔𝑔𝑐𝑐𝑐𝑐 𝑂𝑂𝑂𝑂𝑐𝑐𝑐𝑐𝑐𝑐𝑚𝑚𝑂𝑂𝑂𝑂 𝑅𝑅𝑔𝑔𝑓𝑓𝑐𝑐,𝑔𝑔𝑔𝑔𝑑𝑑𝑐𝑐𝑠𝑠 𝑐𝑐𝑓𝑓
= 478
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Tons of Practice Questions!• True/False• Multiple Choice• Fill in the Blank• Matching• Label a Diagram• Perform Calculations
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1. Shaft2. Media Support3. Bearing4. Baffle5. Tank6. Media
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Scenario Worksheets
• Real world operational problems.• Complex solutions with multiple steps.• Operator must draw conclusions from
chapter material and apply.
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Sample Worksheet Scenario• A small activated sludge facility can only control
their wasting pump by manually turning it on and off. This means the operator must walk across the site each time they want to waste. The same operator also operates the water treatment plant and must frequently be away from the WRRF in the middle of the day. If they collect samples of the MLSS and RAS early in the morning, the laboratory can have results back by 2 pm each day. What can this operator do to make sure he wastes enough each day without overwasting?
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Sample Worksheet Scenario• A ski resort has an activated sludge process. The
SRT is currently at 12 days and the MLSS concentration is 1800 mg/L. The resort has been open since September, but Christmas break is coming up in a few weeks, which is when they have the most visitors. The operator is concerned because the influent BOD5 load will increase when all of the visitors show up. They don’t think they have enough MLSS to maintain an F/M ratio of 0.2 kg BOD5/kg MLVSS•d (0.2 lb BOD5/lbMLVSS•d). The operator decides to decrease their wasting rate so they can build up their inventory before the new BOD5 arrives. Was this the right decision? Why or why not?
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Quick Reference Guides
• Summary table ends every chapter• Bulleted lists of main points by section• Helps operators target areas for review• Reinforces learned concepts• Targeted refresher prior to exams
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Companion On-Line Training Course• Interactive training follows
and compliments text• Modules completed in small
sections as time allows.• Randomly generated final
exam from extensive question bank
• Course time and progress validated for awarding CEUs
• SCORM compliant
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WEF Seeking Training Unit Approvals
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Operator Education
Manuals & Study Guides
On Demand Wastewater Library
Operator Essentials
Distance Learning
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Operations Focused Publications• Released at
WEFTEC 2017• Process control and
troubleshooting• Example
calculations• Advanced
concepts in nutrient removal
• Introduction to process simulators
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Operations Focused Publications• Published in 2013• Deep dive into
nutrient removal at 591 pages
• Case studies• Instrumentation
and automation for process control
• $135 / $108
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Operations Focused Publications• Released at
WEFTEC 2017• In-depth information on
– Bacteria– Protozoa– Metazoa– Filaments– Staining techniques
• Microorganisms as indicators of environmental conditions in treatment processes
• $95 / $76
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Operations Focused Publications• Published in 2012• Based on Standard
Methods• Step-by-step directions
for commonly used wastewater analyses
• Recommended QA/QC• Sample bench sheets• Expected results for
different treatment processes
• $96 / $72
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Operations Focused Publications• Companion to the
Operator-Analyst• Fundamental skills
– Using a balance– Making standards– Dilutions– Measuring with
volumetrics– Calibrating equipment
• $78 / $59
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Visit the Bookstore
https://www.wef.org/resources/publications/books/
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On-Demand Wastewater Library
• Currently available to all WEF members• Short, peer-reviewed articles on O&M• Narrowly focused topics• Graphics intensive• A growing library of learning moments
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Operations Focused Publications• Published in 2016• Prepared in
cooperation with ABC
• More than 200 practice questions
• Questions sorted by certification level
• $89 / $59
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Download an OWWL
https://www.wef.org/resources/publications/owwls/
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Base Knowledge
• Quick summaries of what every operator should know about a topic
• One to three pages• Published monthly in WE&T• Website archive for WEF members• Downloadable PDFs• More than 55 archived essentials
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Knowledge
Principals
Practical Considerations
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Visit the Archive
https://www.wef.org/resources/publications/all-magazines/
water-environment-technology/operator-essentials-
archive/
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