Flash Mixing, Coagulation, Flocculation and Sedimentation

Course Objective: To teach learners the principles and operation of individual processes of conventional drinking water treatment.

This course, part of the Water Treatment Fundamentals bundle, focuses on flash mixing, coagulation, flocculation and sedimentation. 4 Contact Hours (or 0.4 CEUs) will be granted upon completion of this course.

Disclosure: None

Upon completion of this course, learners will be able to:

Recognize…

✓  normal and abnormal floc formation

✓  abnormal conditions in a sedimentation basin

Define…

✓  Van Der Waals forces and zeta potential

Describe…

✓  the flash mixing process

✓  the coagulation and flocculation processes

✓  enhanced coagulation

✓ sedimentation basin operation

✓  the jar testing procedure

✓  the effects of tube and plate settlers

✓  the effects of sand-ballasted clarification 

Compare…

✓  chemical coagulants and coagulant aids

Interpret…

✓  velocity gradient values

✓  zeta potential values

Calculate…

✓  coagulant feed setting

✓  amount of alkalinity needed for reaction with coagulants

✓  detention time

✓  velocity gradient

✓  impeller speed

✓  power required and power imparted by mixers

✓  head loss and velocity in baffled flocculators

Set-up…

✓  a jar test

Evaluate…

✓  the effects of temperature, alkalinity and pH on flocculation

✓  abnormal conditions in a sedimentation basin

A. INTRODUCTION TO CONVENTIONAL TREATMENT  PROCESS     

B. FLASH MIXING, COAGULATION, AND FLOCCULATION     

1. Rapid/Flash Mix     

Computations in Rapid Mix Design     

2. Coagulation     

Computations in Coagulation Operation     

3. Flocculation     

Computations in Flocculator Design       

4. Sedimentation/Clarification    

Computations in Sedimentation Basin Design     

5. Sedimentation Basin Operation     

5.a. Sludge Removal System     

5.b. Basin Operation         

5.c. Monitoring the Process     

5.d. Operating problems     

5.e. Sludge disposal     

C. JAR TESTING     

Computations in Jar Testing     

1. Jar Test Example     

Flash Mixing, Coagulation, Flocculation and Sedimentation Questions     

About Instructor

Water Treatment Instructor

This instructor has over twenty-five years of experience in the water industry. He was also a college adjunct instructor teaching water treatment classes.

Not Enrolled
From $15

Course Includes

  • 1 Lesson
  • 3 Topics
  • 1 Quiz
  • Course Certificate