Water & Wastewater Treatment I Online Course & Certificate

20 contact hours
Used For:
2 Continuing Education Units
Course and Certificate:

Water and wastewater treatment is the process of removing contaminants from wastewater, and includes physical, chemical and biological removal processes. Water and Wastewater Treatment: An Introduction is a course that introduces the problem-solving concepts and tools commonly used in environmental engineering, present the fundamental operations and processes that are used in environmental engineering, with a focus on water and wastewater treatment processes, and instills knowledge essential for basic understanding of environmental systems. The topics covered include an introduction to environmental engineering and environmental systems, materials and energy balances, reactors, hydraulic characteristics, and flow regimes, water use trends and projections, water chemistry concepts, water constituents and quality standards, and a review of physical, chemical, and biological treatment options. 

The course satisfies most requirements for Wastewater Treatment Operator certification exams, and recertification requirements.


After completing Water and Wastewater Treatment, students will be equipped with a basic understanding of the following:

1. Understand the basic scientific principles underlying environmental systems and environmental engineering, including mass balances, reactor hydraulics, mass transfer, water chemistry, and wastewater microbiology.

2. Understand and be able to apply the central problem-solving techniques commonly used in environmental engineering, and be able to solve engineering problems in a structured manner.

3. Understand the purpose, operation, underlying mechanisms, and basic design principles of common water and wastewater treatment processes, and be able to apply these principles to produce creative, cost-effective designs of water and wastewater treatment engineering systems.


No prior experience or coursework required. 

 Students will be assigned 5 homework assignments, and 1 final exam. 


  • Basic water chemistry fundamentals
  • Environmental engineering review
  • Industry projections

Systems for Treating Wastewater and Water

Physical Processes

  • Flow, Screens, Reactors
  • Mixing and Flocculation
  • Sedimentation
  • Filtration

Chemical Processes

  • Coagulation
  • Softening
  • Iron and Manganese Removal
  • Disinfection
  • Miscellaneous Processes

Biological Processes

  • Microorganisms and Growth
  • Attached Growth Processes
  • Suspended Growth Processes
  • On-Site/Small Systems

Sludge Processing/Disposal


 This course is Instructor-led and delivered through our award-winning online Learning Management System.