Test Your Knowledge: Focus on Wastewater Heating

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* 1. True or false: Organic wastewater may require heating to optimize bacteria growth.

True

False

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* 2. What are commonly used heat-transfer devices for heating organic wastewater?

Shell & Tube Heater Exchanger

Spiral Heat Exchanger

Direct Steam Injection Heater

All of the above

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* 3. Which heat-transfer device responds quickly to load changes and saves energy in the process?

Shell & Tube Heat Exchanger

Spiral Heat Exchanger

Direct Steam Injection (DSI) Heater

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* 4. True or false: It is important to consider wastewater chemistry when choosing materials of construction for heating systems.

True

False

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* 5. When considering the design of a wastewater heater what are important design features to consider?

Pressure drop across heating device

Energy efficiency

Ease of maintenance

All of the above

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* 6. When choosing a DSI system for wastewater heating the unit must perform the following

Instantaneous & 100% heat transfer of steam energy into the liquid

Operate with low sound level at or below 85 dBA

Create less than 2 PSI liquid-side pressure drop

All of the above

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* 7. Please provide your contact information to see your score

Name

Company

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