Question

a variety of air pollution control devices remove pollutants from industrial exhaust streams. the table below compares dry and wet electrostatic precipitators (esp) and scrubbers. process requirements dry esp wet esp scrubbers can handle moist gas no yes yes particles collected in liquids no yes yes collects particles under one micron yes yes yes highly efficient for submicron particles and low energy consumption yes yes no recommended for flammable chemicals no yes yes table adapted from: crcleanair.com which of the devices in the table would be the most effective at collecting particles in liquid without using electrostatic forces? choose 1 answer: a dry esps b scrubbers c wet esps

Explanation:

Step1: Analyze the requirements

We need a device that collects particles in liquid and doesn't use electrostatic forces. Dry ESPs don't collect particles in liquid, so they are out. Wet ESPs use electrostatic forces.

Step2: Identify the answer

Scrubbers can collect particles in liquid and don't rely on electrostatic forces for this purpose.

Answer:

B. scrubbers