New Products for Operator Certification Exam Prep

Tony Petrites, AWWA

• Revised 7th edition of Water Operator Certification Study Guide will publish in March • Aligned to ABC’s new Need-to-Know Criteria

• All content vetted and approved by ABC’s volunteer committees

• Over 1400 all-new questions and answers

• Exam Prep app will launch in March

2012 2018

AWWA Exam Prep app

• Optimized for iOS and Android

• Available as mobile app and desktop portal

• Powered by

• App is free to download with sample questions

• Question-and-answer packages can be purchased from AWWA store, by subject and grade • Water Treatment, Introductory

(grades 1 and 2) • Water Treatment, Advanced

(grades 3 and 4) • Water Distribution, Introductory • Water Distribution, Advanced

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Operator Study Guide

App

Key Facts

• Meets ABC Need-to-know Criteria • 1400 questions

• Meets ABC Need-to-know Criteria • 2000 questions and growing • Purchase only what you need • Practice exams available

Other AWWA Operator Resources

Questions?

• Email me at tpetrites@awwa.org

• Stop by the AWWA booth for • More information on our publications, e-learning, and education services

• Free giveaways

• Raffle for WSO and Study Guide books

Wastewater Fundamentals

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.

Graphics Intensive

Vendor

Supplied

Images

Real

World

Photos

All in

full

color!

Infographics

Pond

Biology

showing

links

between

organisms

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

Relatable Analogies

Explain Complex Topics

Bacteria as Combustion Engines

Definitions

within Main

Text Increase

Readability

pH is expressed in standard units (SU)...

Discussed in more detail in Chapter 2.

Step-by-Step Math Examples

• Uses ABC formulas

• English and metric solutions

• Easy to follow

Step 1 – Convert the influent flow from mgd to gpd.

7.5 𝑚𝑖𝑙 𝑔𝑎𝑙

𝑑

1 000 000 𝑔𝑎𝑙

1 𝑚𝑖𝑙 𝑔𝑎𝑙= 7 500 000 𝑔𝑎𝑙

Step 2 – Find the total surface area of the clarifiers.

2 𝑐𝑙𝑎𝑟𝑖𝑓𝑖𝑒𝑟𝑠 7850 𝑠𝑞 𝑓𝑡

1 𝑐𝑙𝑎𝑟𝑖𝑓𝑖𝑒𝑟= 15 700 𝑠𝑞 𝑓𝑡

Step 3 – Calculate the surface overflow rate.

𝑆𝑢𝑟𝑓𝑎𝑐𝑒 𝑂𝑣𝑒𝑟𝑓𝑙𝑜𝑤 𝑅𝑎𝑡𝑒,𝑔𝑝𝑑

𝑠𝑞 𝑓𝑡=

𝐼𝑛𝑓𝑙𝑢𝑒𝑛𝑡 𝐹𝑙𝑜𝑤, 𝑔𝑝𝑑

𝐴𝑟𝑒𝑎, 𝑠𝑞 𝑓𝑡

𝑆𝑢𝑟𝑓𝑎𝑐𝑒 𝑂𝑣𝑒𝑟𝑓𝑙𝑜𝑤 𝑅𝑎𝑡𝑒,𝑔𝑝𝑑

𝑠𝑞 𝑓𝑡=

7 500 000 𝑔𝑝𝑑

15 700 𝑠𝑞 𝑓𝑡

𝑆𝑢𝑟𝑓𝑎𝑐𝑒 𝑂𝑣𝑒𝑟𝑓𝑙𝑜𝑤 𝑅𝑎𝑡𝑒,𝑔𝑝𝑑

𝑠𝑞 𝑓𝑡= 478

Tons of Practice Questions!

• True/False

• Multiple Choice

• Fill in the Blank

• Matching

• Label a Diagram

• Perform Calculations

1. Shaft 2. Media Support 3. Bearing 4. Baffle 5. Tank 6. Media

Scenario Worksheets

• Real world operational problems.

• Complex solutions with multiple steps.

• Operator must draw conclusions from

chapter material and apply.

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?

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/lb MLVSS•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?

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

WEF Seeking Training Unit Approvals