Fundamental Aspects of Emission Controls Training

535-01 Flue Gas Desulfurization System

When you complete this lesson, you will be able to describe the design and function of control systems that remove sulfur oxides and particulates from flue gas. In addition, you will be able to outline recovery systems, which extract and concentrate the sulfur oxides present in flue gas and convert them into usable by-products.

  • Identify wastes contained in flue gases
  • Discuss the basic design and function of a scrubber
  • Identify the components of a typical wet scrubber and describe its operation
  • Identify the components of a typical dry scrubber and describe its operation

535-02 Flue Gas Desulfurization System, Open Spray Design, Part 1

When you complete this lesson, you will be able to understand how the design of the open spray FGDS effectively reduces SO2 and provides substantial flexibility in meeting SO2 emissions requirements.

  • Discuss the purpose and operating philosophy behind the FGDS
  • Describe operation in both the fly ash and lime modes
  • Explain the use of the absorber tower and reaction tank
  • Identify the purpose of the spray recycle pumps
  • Describe the dampers and ductwork
  • Explain how each of the following features facilitate the meeting of emissions parameters:
  • Absorber bypass fraction
  • Number of absorbers in service
  • Number of pray levels in service
  • Fly ash and lime feed

535-03 Flue Gas Desulfurization System, Open Spray Design, Part 2

When you complete this lesson, you will have an understanding of the overall process of cleaning the SO2 out of flue gas. In addition, you will have general knowledge of each of the systems used to accomplish this.

  • Explain what happens to the scrubbing slurry
  • Discuss the practice of reusing the slurry and identify how the pH is maintained for good scrubbing action
  • Identify the function of the blowdown system
  • Describe the pond return system
  • Explain the operation of a lime system
  • Identify how the fly ash is used
  • Explain the operation of the scrubber inverters

535-04 Dry Scrubber Operation

When you complete this lesson, you will be able to describe dry scrubber design and function. In addition, you will be able to compare the results of different installations, and describe some subtle design and operational differences that are believed to account for the higher pollutant removal efficiencies.

  • Explain basic dry scrubber design and operation
  • Discuss designing for optimum operation
  • Describe gas cooling and the reagent system
  • Explain the baghouse material and design

535-05 Selective Catalytic Reduction (SCR) System

When you complete this lesson, you will be able to explain what SCR is and its importance, as well as identify the components that the SCR consists of.

  • Describe the purpose of the SCR system
  • Understand the chemistry of the SCR System
  • Describe the components of the SCR system
  • Describe the operation of the SCR system
  • List the proper PPE required when using the SCR system

535-09 Introduction to Continuous Emission Monitoring Systems

When you complete this lesson, you will be familiar with the purpose, function, and major components of Continuous Emission Monitoring Systems.

  • Identify the purposes of a Continuous Emission Monitoring System (CEMS)
  • Distinguish what components are and are not part of the certified loop
  • Identify the function of the gas fuel flow transmitters
  • Identify the function of the megawatt transmitters
  • Identify the function of the probe and sample system

535-10 Fundamentals of Using a CEMS

When you complete this lesson, you will be able to describe the basic steps for collecting Continuous Emission Monitoring System (CEMS) data readings, troubleshooting probe and sample systems, changing calibration gas bottles, and entering new data in the engineering workstation (EWS). You will also be able to describe the process for performing weekly, monthly, quarterly, semi-annual, and annual preventive maintenance (PM) procedures.

  • Describe how to collect CEMS data readings
  • Describe basic steps required for troubleshooting probe and sample systems
  • Describe basic steps required to change calibration gas bottles and enter new data in the engineering workstation (EWS)
  • Identify tasks to be performed weekly, monthly, quarterly, semi-annually, and annually for preventive maintenance (PM)

535-11 Calibration of CEMS Components

When you complete this lesson, you will be able to describe how components of the CEMS are calibrated to maintain accurate records of emissions.

  • Recall fundamentals for calibrating stack flow monitors
  • Recall fundamentals for calibrating Nitrogen Oxide (NOx) analyzers
  • Recall fundamentals for calibrating Sulfur Dioxide (SO2) analyzers
  • Recall fundamentals for calibrating Carbon Dioxide (CO2) analyzers
  • Recall fundamentals for calibrating typical opacity monitors