Ad
related to: elemental chlorine free vs total chart result- Ready. Set. Ship.
Set up Pick & Ship recurring orders
Schedule to keep supplies in stock
- Contact Hach
Reach out to one of our experts!
Ask a question or receive a quote.
- Why Hach Chemistries?
Accurate results every time.
Ensure quality and consistency.
- Water Monitoring Panels
Pre-engineered and ready to install
Application specific configurations
- Ready. Set. Ship.
Search results
Results from the WOW.Com Content Network
Elemental chlorine free (ECF) is a technique that uses chlorine dioxide for the bleaching of wood pulp. It does not use elemental chlorine gas during the bleaching process and prevents the formation of dioxins and dioxin-like compounds , carcinogens .
Chlorine dioxide is sometimes used in combination with chlorine, but it is used alone in ECF (elemental-chlorine-free) bleaching sequences. It is used at moderately acidic pH (3.5 to 6). The use of chlorine dioxide minimizes the amount of organochlorine compounds produced. [8]
The Kappa number estimates the amount of chemicals required during bleaching of wood pulp to obtain a pulp with a given degree of whiteness. Since the amount of bleach needed is related to the lignin content of the pulp, the Kappa number can be used to monitor the effectiveness of the lignin-extraction phase of the pulping process.
Elemental chlorine bleaching uses chlorine and hypochlorite. Elemental chlorine-free bleaching is more environmentally friendly since it eliminates the use of hypochlorite and replaces chlorine with chlorine dioxide or sodium chlorate. [3] Totally chlorine-free bleaching utilizes oxygen and hydrogen peroxide. This is the most environmentally ...
An element–reaction–product table is used to find coefficients while balancing an equation representing a chemical reaction. Coefficients represent moles of a substance so that the number of atoms produced is equal to the number of atoms being reacted with. [1] This is the common setup: Element: all the elements that are in the reaction ...
The most popular method now is elemental chlorine free (ECF) bleach — which, despite its name, emits chlorine gas containing dioxins into the air and water near tissue manufacturing plants; it's ...
The recovery boiler size was 100 – 300 TDS (tons of dry solids) per day. and black liquor concentration 45 – 55%. Frequently to sustain combustion auxiliary fuel needed to be fired. Primary air was 60 – 70% of total air with secondary the rest. In all levels openings were small and design velocities were 40 – 45 m/s.
For premium support please call: 800-290-4726 more ways to reach us
Ad
related to: elemental chlorine free vs total chart result