Dissolved Air Flotation (DAF) Systems - Tissue

SKU: C-862Duration: 15 Minutes

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.

Language:  English

$39
 Add to Cart

Great for trainers or groups who need unlimited online access to multiple courses. Available in two ways:

White Water and Filtrate Systems (Tissue) Series (Details)
Includes 2 courses for $99/year.

Tissue Library (Details)
Includes 31 courses for $699/year.

Ideal for corporate licensing and high volume users.

Get Convergence courses into your current LMS to track and report employee training. Or contact us to learn more about the advantages of licensing our courses with the Convergence LMS.

Get Pricing Info

Course Details

Specs

Training Time: 15 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Dissolved Air Flotation (DAF) systems are used to remove small suspended solids from fresh water, process water, and wastewater streams. Compressed air is injected into a pressurized recirculated stream to create tiny air bubbles that adhere to the suspended solids and float them to the surface. The "float" is then skimmed off and collected for reuse or disposal. The addition of coagulant and flocculant chemicals can enhance the flotation process and improve the efficiency of the DAF system.

Learning Objectives

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

  • Describe common applications of the Dissolved Air Flotation (DAF) process
  • Describe the main steps of the DAF process
  • Describe the equipment utilized in a DAF system
  • Identify chemicals commonly used as coagulants and flocculants in DAF systems
  • Describe coagulant and flocculant chemicals used in DAF systems
  • Identify hazards associated with DAF system

Key Questions

The following key questions are answered in this module:

Where are dissolved air flotation (DAF) systems used?
Common applications include clarification of municipal water and wastewater, and process water for tissue and papermaking operations.

What is done with the solids that are collected by a tissue machine DAF system?
They can be collected for re-use in the process, or sewered.

Is there a particular order in which coagulants and flocculants should be added?
Yes, coagulants should be added first, and then flocculants. The chemicals, addition rates, locations, and order should be carefully considered and jar tests can help determine the most effective process.

Where is the dissolved air added to the feed water to a flotation tank?
Compressed air is typically injected into a recirculated and pressurized water stream, that is mixed with the feed water to the flotation tank.

What is the difference between large rectangular flotation tanks and tall circular ones?
Rectangular units provide more retention time, while circular units use less space and can handle larger flows.

Sample Video Transcript

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

Dissolved air floatation or DAF is a water treatment process that removes suspended solids from water using air. 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. Chemicals can be added to the feed water to improve solids removal. The DAF process can be used to clarify fresh water, process water, and wastewater so that it is suitable for use or discharge, In some cases, the solids are collected for reuse. Common applications include clarification of municipal water and wastewater and process water in tissue and papermaking operations.

Customer Q&A

I would like to have several employees take multiple courses. How can I set that up?

We're in the process of making bulk course and multiple user purchases easier. But for now, you can order multiple courses and contact us with details on who you'd like to assign courses to. We can set up each user's training plan and make sure everyone gets the eLearning assignments they need.

Can I get a free full-length preview of a course to see what this course covers?

While we do our best to offer details on course contents, we don't normally offer full-length previews. But please contact us with more details for a better understanding of what your organizaton needs and how we can help.

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 each eLearning course.

How do I log in to take a course that I have already paid for?

You'll receive an email with login details moments after you purchase your pay-per-view (PPV) course. Just click the login link and enter the user name and password provided.

Do you have courses in different languages?

Yes. While all of our courses are originally produced in English, we develop many courses in a growing number of languages, including Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Tamil, and Thai. Available languages are normally displayed in the Course Details section on each course page.
Added to Cart! Click here to view your cart.
Training Software
eLearning Courses
Solutions
Convergence Training Newsletter

Stay up to date on our products and offerings and get safety, compliance, and training administration tips in our free monthly newsletter.

© Convergence Training | Privacy Policy