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 French Portuguese Russian
Great for trainers or groups who need unlimited online access to multiple courses. Available in two ways:
Bleaching Series (Details)Includes 11 courses for $499/year. Pulping Library (Details)Includes 72 courses for $1,499/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.
Like what you see?
The full course is 17 minutes long and available in a number of affordable formats.
Explore this page for pricing and delivery options.
Training Time: 17 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English, Portuguese, French, Russian
Bleaching is usually accomplished using a series of chemical treatments. The chemicals and the order in which they are used make up a "bleaching sequence." This course covers what a typical bleaching sequence is as well as the main goals of bleaching and how to achieve those goals. It also describes what the advantages and disadvantages of bleaching are along with the purpose and configurations of filtrate recycling.
Bleaching Basics
View Course
Bleaching Equipment
Ozone Bleaching
Peroxide Bleaching
Pulp Bleaching Environmental Considerations
This customer provided only a star rating and no written review.
Evison C. Verified Customer
The following key questions are answered in this module:
What is a bleaching sequence?The bleaching chemicals and the order in which they are used make up a bleaching sequence.
How can the chemical demand for bleaching be reduced?Pulp to a lower kappa number and/or use an oxygen delignification stage prior to bleaching so there is less lignin to remove.
What do the letters in a bleaching sequence mean?Each letter represents a different chemical. Chlorine Dioxide (D), Oxygen (O), Hydrogen Peroxide (P), Ozone (Z), and Alkaline Extraction (E)
What does ECF and TCF mean?Chlorine used to be the major pulp bleaching chemical, but it is no longer used because is harmful to people and the environment. ECF stands for elemental chlorine free bleaching. ECF sequences use chlorine dioxide instead of chlorine. TCF, or totally chlorine free, bleaching doesn't use any chlorine containing chemicals for bleaching.
What are the different configurations for filtrate recycling?Fresh water could be used for washing after every stage, but filtrate is recycled to minimize water usage. The main configurations for filtrate recycling are direct countercurrent, jump-stage, split-flow, and fractional.
Below is a transcript of the video sample provided for this module:
Perfect for individual users. Get immediate online access. Must be used within 30 days, expires 48 hours after launch.
DVD alternative for in-person classroom training. Get one or more videos on a USB drive. Content expires after 1 year.
Import our SCORM/AICC compatible eLearning courses into an LMS for administrative tracking and reporting on training.