CEU Challenge

Members of the Florida Water and Pollution Control Operators Association (FWPCOA) may earn continuing education units through the CEU Challenge! Answer the questions published on this page, based on the technical articles in this month’s issue. Circle the letter of each correct answer. There is only one correct answer to each question! Answer 80 percent of the questions on any article correctly to earn 0.1 CEU for your license. Retests are available.

This month’s editorial theme is Stormwater Management and Emerging Technologies. Look above each set of questions to see if it is for water operators (DW), distribution system operators (DS), or wastewater operators (WW). Mail the completed page (or a photocopy) to: Florida Environmental Professionals Training, P.O. Box 33119, Palm Beach Gardens, Fla. 33420-3119. Enclose $15 for each set of questions you choose to answer (make checks payable to FWPCOA). You MUST be an FWPCOA member before you can submit your answers!

EARN CEUS BY ANSWERING QUESTIONS FROM PREVIOUS JOURNAL ISSUES!

Contact FWPCOA at membership@fwpcoa.org or at 561-840-0340. Articles from past issues can be viewed on the Journal website, www.fwrj.com.

Article 1 ____________________________________

LICENSE NUMBER for Which CEUs Should Be Awarded

Article 2 ____________________________________

LICENSE NUMBER for Which CEUs Should Be Awarded

Article 3 ____________________________________

LICENSE NUMBER for Which CEUs Should Be Awarded

If paying by credit card, fax to (561) 625-4858 providing the following information:

(Credit Card Number)

(Expiration Date)

Emerging Renewal Technologies for Pressurized Pipelines

Steve Soldati (Article 1: CEU = 0.DS/DW/WW02015403) 1. Which of the following is not specifically identified as a characteristic of fiber-reinforced polymer pipe? a. More structurally robust than all other alternatives b. Flexibility to adapt to unique pipe layouts c. Well-suited to spot repairs d. Typically used for larger pipelines

2. Guidance in selecting the best rehabilitation technique can be found in which of the following references? a. ASTM 563.2 b. AWWA M28 c. ANSI 14006 d. ISO 9001

3. Hose lining a. does not require the continued support of the existing host pipe. b. requires larger work zones than all other alternatives discussed. c. requires long pipe laydown areas. d. requires no resin curing.

4. The replacement pipe created by the cured-inplace process a. is a fully structural Class 4 solution. b. significantly restricts flow capacity. c. is more disruptive to local activity than most other solutions. d. is the most expensive approach.

5. Which of the following is the only rehabilitation option that can be used to expand pipeline carrying capacity? a. Cured-in-place b. Hose lining c. Tight-fit high-density polyethylene d. Fusible polyvinyl chloride horizontal directional drill

Three Ion Exchange Technologies, One Tough Decision for Florida Utilities

Tyler Smith, Chris Reinbold, Vinnie Hart, and Larry Elliott (Article 2: CEU = 0.1DS/DW/WW02015404) 1. Magnetic ion exchange is a fluidized bed process primarily developed to remove a. hardness. b. dissolved organic carbon. c. iron. d. alkalinity.

2. Which of the following is a disadvantage of fixed bed ion exchange treatment? a. Requires a large footprint for larger-capacity treatment systems b. Media must be regenerated more frequently c. Requires media that is less tolerant of chlorine in treating fouling d. Less effective in treating certain anaerobic ground waters

3. Previous suspended ion exchange (SIX) process studies have indicated that contact times up to ____________ will achieve adequate organics removal. a. 15 minutes b. 30 minutes c. 1 hour d. 90 minutes

4. Which of the ion exchange treatment processes discussed has the highest sulfate and bicarbonate competition? a. Fixed bed b. Magnetic ion exchange (MIEX) c. SIX d. It’s the same for MIEX and SIX

5. Resin is separated from the water in the MIEX process by a. downstream sedimentation tanks. b. tube settlers or plates at the top of the reactor vessel. c. a built-in clarifier. d. cartridge filtration systems.

Addressing Per- and Poly-Fluoroalkyl Substances Through Source Water Assessments and Advanced Treatment Using Powdered Activated Carbon, Granular Activated Carbon, and Ion Exchange

Samantha Black, Katie Walker, Gwen Woods-Chabane, Pete D’Adamo, and Dell Harney (Article 3: CEU = 0.1DS/DW/WW02015405)

1. In powdered activated carbon testing, there was _________ difference in per- and poly-fluoroalkyl substances (PFAS) removal between contact times of 1 minute and 30 minutes. a. negligible b. modest c. significant d. zero

2. Which of the following forms of PFAS broke through granular activated carbon (GAC) and ion exchange (IX) columns most quickly? a. Short-chain b. Intermediate-chain c. Long-chain d. All broke through simultaneously

3. The U.S. Environmental Protection Agency (EPA) has established a lifetime health advisory level of _______ nanograms per liter for the sum of two PFAS. a. 30 b. 50 c. 70 d. 90

4. PFAS are persistent in the environment because of the strong chemical bond between _____________ and fluorine atoms. a. calcium b. magnesium c. carbon d. sulfide

5. A disadvantage of the city’s existing powdered activated carbon PFAS reduction system is that it a. does not reduce total organic carbon. b. does not reduce PFAS to a concentration that is less than the EPA standard. c. is too expensive and complex to install at full plant scale. d. increases plant residuals production.