DAF System Chemicals and Chemistry

SKU: C-652Duration: 15 Minutes Certificate Included

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Great for in-person classroom training or as an alternative to DVD.

Includes printable documents and Convergence Video Player for Windows systems. Content expires after 1 year.

Ideal for corporate licensing and volume users who also need administrative tracking and reporting on training.

Get this interactive eLearning course into your LMS or learn how you can leverage our LMS to deliver training to your workforce.

Need multiple courses or have lots of users? Just let us know a little more about what you need and we’ll get you some great volume pricing.

 Need help deciding? Compare delivery formats.

Course Details

Specs

Training Time: 15 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Dissolved air flotation (DAF) is a water treatment process that removes suspended solids from fresh water, process water, or wastewater. Coagulant and flocculant chemicals can be added to the feed water to aggregate and join together the small solid particles to form larger flocs or bundles and improve solids removal. This training module describes how these chemicals work in the DAF process.

At the end of this module, you will be able to:

  • Define and describe "coagulation"
  • Define and describe "flocculation"
  • Describe the functions of dissolved air, pH control chemicals, coagulants and flocculants in DAF systems

The following key questions are answered in this module:

What is the term for an aqueous suspension of particles that are too small to settle out under the influence of gravity?
An aqueous suspension of particles that are too small to settle under the influence of gravity is called a colloidal suspension.

How are tiny fiber fines removed from suspension in a dissolved air flotation system?
Tiny fibers attach to small air bubbles and are carried to the surface of the DAF separation vessel.

What do flocculants do in a colloid?
Flocculants combine microflocs formed by coagulation into larger aggregates of flocs.

What do coagulants do in a colloid?
Coagulants neutralize the electrical surface charge on colloidal particles which allows them to combine to form microflocs.

If both chemicals are used, in what order should coagulant and flocculant chemicals be added to a suspension?
When coagulants and flocculants are used together, coagulants should be added to the suspension first.

Below is a transcript of the video sample provided for this module:

Dissolved air flotation, or DAF, is a water treatment process that removes suspended solids from freshwater, processed water, or waste water. This separation is achieved by dissolving air into water under pressure and then releasing the air at atmospheric pressure in a floatation tank. The released air forms tiny bubbles which adhere to the suspended solids in the water causing the solids to float to the surface where they can be removed by a skimming mechanism. Coagulant and flocculant chemicals can be added to the feed water to aggregate and join together the small solid particles to form larger flocks or bundles and improve solids removal. This training module describes how these chemicals work in the DAF process.

Use the additional resources and links below to learn more about this topic:

Customer Q&A

Ask a Question

Sorry, we're missing some information

How do I log in to watch a video that I have already paid for?

Easy! Moments after you purchase your pay-per-view (PPV) course, you'll receive an email with login details. Just click the link and log in with your user name and password and you're on your way!

I would like to have some of my employees take 5 of your driving related courses, how can i set this up?

We're in the process of making bulk purchases and purchases for multiple users easier. But for now, you can order multiple courses and just let us know who you'd like to assign courses to. With an email for each user, we can set up their training plans and make sure everyone gets the eLearning assignments they need.

How can I get your paper-making courses for free?

Well, we can't blame you for asking... And while we're a for-profit company, there are situations with students and certain educational organizations where we can help out with a selection of eLearning. However, our online courses are extremely economical. And our paper industry courses are in very high demand. So, without knowing more about your situation, we think you'll get loads of value from the $39 you'll spend on any of our premium courses.

Do you have eLearning in Portuguese?

Yes, we do! And in addition to primary English narration, we produce many courses in a growing number of languages, including Spanish, Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Russian, Tamil, and Thai.

I'm unemployed, but I really like your eLearning. Do I get a certificate when I complete a course?

Yes! All of our courses allow you to print a completion certficate upon successfully passing the integrated test at the end of eLearning. In the future, we'll have badges for you to use in your LinkedIn profiles.
Added to Cart! Click here to view your cart.