Exam Study Guide: Hydraulic Detention Time and the Gate Valve Operating Formula
Today Exam Study Guide: Hydraulic Detention Time and the Gate Valve Operating Formula

Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering these questions and others from our Exam Study Guide Series.

Headworks

January 14, 2021 Case Studies - February 2021
Case Studies - February 2021
HeadCell vs. Aerated Grit Basins HeadCell vs. Aerated Grit Basins January 13, 2021
Advanced Grit Management Provides Total Plant Protection for Today’s Treatment Plants Advanced Grit Management Provides Total Plant Protection for Today’s Treatment Plants… January 12, 2021
Using Engineering Principles to Evaluate Grit System Performance Using Engineering Principles to Evaluate Grit System Performance January 11, 2021
Product Focus - February 2021 Product Focus - February 2021 January 14, 2021
The Effect of Screen Design on Capture Rate and Plant Maintenance The Effect of Screen Design on Capture Rate and Plant Maintenance August 27, 2020

Dewatering/Biosolids

January 15, 2021 The Most Important Questions to Ask When Considering a Pump
The Most Important Questions to Ask When Considering a Pump
Unique Grit System Can Receive Street Sweepings And Vac Trucks With Ease Unique Grit System Can Receive Street Sweepings And Vac Trucks With Ease January 13, 2021
Proven Grit Treatment Technology Proven Grit Treatment Technology January 12, 2021
Grit Washer Helps Tarpon Springs Perfect Its Cleaning and Separation Process Grit Washer Helps Tarpon Springs Perfect Its Cleaning and Separation Process January 11, 2021
Some Clean-Water Plants Have Trouble Finding Land to Apply Their Biosolids. That’s Not the Case for This Colorado City. Some Clean-Water Plants Have Trouble Finding Land to Apply Their Biosolids. That’s No… October 16, 2020
California District Begins Work On a Next-Generation Class A Digester Facility California District Begins Work On a Next-Generation Class A Digester Facility October 8, 2020

Treatment

Yesterday Bioremediation with Micro-Solve Solves Foaming Issue at a Texas WRRF
Bioremediation with Micro-Solve Solves Foaming Issue at a Texas WRRF
Reduce Solids, SSO, BOD and FOG with One Product Reduce Solids, SSO, BOD and FOG with One Product January 11, 2021
Enhanced Bioremediation with Micro-Solve Enhanced Bioremediation with Micro-Solve January 4, 2021
Desalination Breakthrough Could Lead To Cheaper Water Filtration Desalination Breakthrough Could Lead To Cheaper Water Filtration January 14, 2021
Filamentous Bacteria Identification Now Can Be Just an Email Away Filamentous Bacteria Identification Now Can Be Just an Email Away January 14, 2021
Researchers Find a New Multitasking Microbe to Purify Wastewater Researchers Find a New Multitasking Microbe to Purify Wastewater December 28, 2020

Pumps

January 13, 2021 Operator-Friendly, Drop-In-Place Engineered Skid Systems
Operator-Friendly, Drop-In-Place Engineered Skid Systems
Quick Disconnects for Blue-White Flex-Pro Peristaltic Metering Pumps Quick Disconnects for Blue-White Flex-Pro Peristaltic Metering Pumps January 12, 2021
Replacing High-Maintenance Chemical Pumps with Flex-Pro Peristaltic Metering Pumps Replacing High-Maintenance Chemical Pumps with Flex-Pro Peristaltic Metering Pumps January 11, 2021
M-3 Peristaltic Chemical Pumps Can Handle the Most Demanding Environments M-3 Peristaltic Chemical Pumps Can Handle the Most Demanding Environments January 6, 2021
It's Not a Chopper. It's Not a Grinder. But It Keeps Rags and Wipes From Clogging Pumps. It's Not a Chopper. It's Not a Grinder. But It Keeps Rags and Wipes From Clogging Pum… September 15, 2020
SEEPEX Progressive Cavity Pumps 101 SEEPEX Progressive Cavity Pumps 101 August 31, 2020

Odor Control

July 20, 2020 Product Spotlight - Wastewater: August 2020
Product Spotlight - Wastewater: August 2020
Case Studies - June 2020 Case Studies - June 2020 May 13, 2020
Product Focus - June 2020 Product Focus - June 2020 May 13, 2020
Product Spotlight - Wastewater: May 2020 Product Spotlight - Wastewater: May 2020 April 17, 2020
A California Treatment Plant Opts for a Modern Approach to Controlling Nuisance Odors A California Treatment Plant Opts for a Modern Approach to Controlling Nuisance Odors March 17, 2020
Product Spotlight - November 2019 Product Spotlight - November 2019 October 16, 2019

COVID-19

August 31, 2020 COVID-19 Pandemic Should Be a Wake-Up Call for Water Security
COVID-19 Pandemic Should Be a Wake-Up Call for Water Security
Water Sector Commends Congress for Water Relief in Appropriations Package Water Sector Commends Congress for Water Relief in Appropriations Package January 6, 2021
Water Associations Call on Congress To Support Utilities and Customers in Coronavirus Relief Legislation Water Associations Call on Congress To Support Utilities and Customers in Coronavirus… December 7, 2020
News Briefs: Crews Cleaning Up Diesel Spill at Alaskan WWTP News Briefs: Crews Cleaning Up Diesel Spill at Alaskan WWTP December 3, 2020
COVID-19 Wastewater Testing Trials Yield Key Insights COVID-19 Wastewater Testing Trials Yield Key Insights November 10, 2020
News Briefs: Two Workers Found Dead in Nebraska Pump House News Briefs: Two Workers Found Dead in Nebraska Pump House September 17, 2020

Disinfection

January 14, 2021 A New Design Approach Lets Operators Virtually See the Spaces Where They Will Work
A New Design Approach Lets Operators Virtually See the Spaces Where They Will Work
TPO to Host Webinar on Chlorine Measurement Methodology TPO to Host Webinar on Chlorine Measurement Methodology November 23, 2020
​Brain-Eating Amoeba Found in Texas Water System ​Brain-Eating Amoeba Found in Texas Water System October 1, 2020
Product Spotlight - Water: September 2020 Product Spotlight - Water: September 2020 August 17, 2020
Product Spotlight: Water - July 2020 Product Spotlight: Water - July 2020 June 11, 2020
Product Spotlight - Water: June 2020 Product Spotlight - Water: June 2020 May 13, 2020

Instrumentation

January 7, 2021 A Toxic Odor Problem Is Reduced to Almost Nothing
A Toxic Odor Problem Is Reduced to Almost Nothing
WEF Announces 2020 Innovative Technology Award Winners WEF Announces 2020 Innovative Technology Award Winners December 23, 2020
Is Compliance a Headache for Your Facility? Here's a Technological Pain Reliever. Is Compliance a Headache for Your Facility? Here's a Technological Pain Reliever. November 12, 2020
Beyond Meter Replacement: A Small Community Profits From a Forward-Looking Embrace of Technology Beyond Meter Replacement: A Small Community Profits From a Forward-Looking Embrace of… November 12, 2020
TPO to Host Webinar on Monitoring Toxic and Corrosive Gases TPO to Host Webinar on Monitoring Toxic and Corrosive Gases November 2, 2020
Product Spotlights - Water: November 2020 Product Spotlights - Water: November 2020 October 16, 2020

Tanks

November 9, 2020 City of Destin, Florida, Wins 2020 Tank of the Year Honors
City of Destin, Florida, Wins 2020 Tank of the Year Honors
Sherwin-Williams Now Accepting Impact Award Entry Submissions for Water/Wastewater Projects Sherwin-Williams Now Accepting Impact Award Entry Submissions for Water/Wastewater Pr… September 22, 2020
Product Focus - October 2020 Product Focus - October 2020 September 15, 2020
Product Focus - October 2019 Product Focus - October 2019 September 17, 2019
Operator Ingenuity: Surviving a Polar Vortex Operator Ingenuity: Surviving a Polar Vortex February 14, 2019
New at WEFTEC: IEC Presents Affordable Clarifier and Tank Covers New at WEFTEC: IEC Presents Affordable Clarifier and Tank Covers October 25, 2018

Laboratory

January 14, 2021 From Building Rockets to Analyzing Wastewater: Liz Werth Finds a Rewarding Career
From Building Rockets to Analyzing Wastewater: Liz Werth Finds a Rewarding Career
Bug of the Month: What Spirochaetes Indicate About Your Treatment Facility Bug of the Month: What Spirochaetes Indicate About Your Treatment Facility January 11, 2021
Bug of the Month: Thiothrix Is Commonly Responsible for Bulking Episodes Bug of the Month: Thiothrix Is Commonly Responsible for Bulking Episodes December 15, 2020
Emerald Coast Mfg. Technology Makes Water Sampling a Breeze Emerald Coast Mfg. Technology Makes Water Sampling a Breeze December 14, 2020
Hillsborough County's Lab Renewal Project Puts a Premium on Durability Hillsborough County's Lab Renewal Project Puts a Premium on Durability December 14, 2020
Bug of the Month: Zoogloea, the Glue of Floc Formation Bug of the Month: Zoogloea, the Glue of Floc Formation November 16, 2020

Energy

December 14, 2020 Product Focus - January 2021
Product Focus - January 2021
Case Studies - January 2021 Case Studies - January 2021 December 14, 2020
This Minnesota City Casts a Wide Net in Capturing Efficiencies and Sustainable Practices This Minnesota City Casts a Wide Net in Capturing Efficiencies and Sustainable Practi… December 14, 2020
A Community Strikes While the Sun Is Hot to Capitalize on Solar Power A Community Strikes While the Sun Is Hot to Capitalize on Solar Power November 12, 2020
Aeration Efficiency Project Complete. Next Step: Net-Zero Energy. Aeration Efficiency Project Complete. Next Step: Net-Zero Energy. October 16, 2020
Pioneering Resource Recovery Facility Wins WEF 2020 Project Excellence Award Pioneering Resource Recovery Facility Wins WEF 2020 Project Excellence Award October 13, 2020

Education/Training

January 12, 2021 5 Tips for Acing Wastewater Exam Math Questions
5 Tips for Acing Wastewater Exam Math Questions
Water & Wastewater Education Listing: January 2021 Water & Wastewater Education Listing: January 2021 January 7, 2021
Exam Study Guide: Fixed Film Nitrification and Finished Water Quality Parameters Exam Study Guide: Fixed Film Nitrification and Finished Water Quality Parameters December 31, 2020
Exam Study Guide - January 2021 Exam Study Guide - January 2021 December 14, 2020
An Operator's Conference Gives Participants a Test in a Highly Unconventional Skill An Operator's Conference Gives Participants a Test in a Highly Unconventional Skill December 14, 2020
An Award-Winning Young Professional Has Advice for Advancing in Water Careers An Award-Winning Young Professional Has Advice for Advancing in Water Careers December 14, 2020