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 Portuguese
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 14 minutes long and available in a number of affordable formats.
Explore this page for pricing and delivery options.
Training Time: 14 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English, Portuguese
Ozone is a toxic gas generated by applying a high voltage to oxygen. The first commercial use of ozone for bleaching was in 1992, so ozone is relatively new for pulp bleaching. However, ozone provides several economic and environmental benefits over other chemical options for elemental chlorine free (ECF) and totally chlorine free (TCF) bleaching. This course discusses the benefits of ozone bleaching, its chemistry, how it is generated, and the process and equipment involved in ozone bleaching.
Bleaching Basics
View Course
Bleaching Equipment
Bleaching Sequences and Filtrate Recycling
Peroxide Bleaching
Pulp Bleaching Environmental Considerations
The following key questions are answered in this module:
How is ozone generated?Ozone is created by applying high voltage to a gas that contains oxygen.
What are the advantages of ozone bleaching?Ozone provides several economical and environmental benefits over chlorine dioxide and other bleaching chemicals. It can be formed from oxygen, it is a strong oxidizer, and reacts quickly with pulp.
Does ozone bleaching require special equipment?Yes, the equipment depends on the pulp consistency. High consistency is most popular today. A special horizontal reactor is used instead of a large conventional tower because the reaction is fast. A wash press, or similar equipment, is needed to achieve high consistency.
What process variables are important for ozone bleaching?Temperature, pH, consistency, and mixing all impact the efficiency and selectivity of ozone bleaching.
Is ozone hazardous?Ozone is toxic even at low concentrations and at high concentrations it can explode. The concentration of ozone gas in air must be continuously monitored.
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.