Case Study: Reduction of organic acids and water hardness in the paper machine circuit for packaging papers
Wednesday, 12. October 2022
Paper mills often face the challenge that the water cycle is not optimized or the paper mill neighborhood complains about odor nuisance.
LEVACO has developed the product DEFOKALK® 450 FD: A pH value regulating, natural, inorganic additive, which is applied in the paper machine circuit, and reduces the hardness of the water.
- Control of the pH value
- Reduction of the formation of carbon dioxide
- Precipitation of the calcium hydrogen carbonate formed
- Discharge of the calcium carbonate via paper
- Reduction of organic acids by acid-base neutralization
- A CO2-neutral version is available
If you know the problems and want to combat them with a CO2-neutral version, feel free to contact us or request the DEFOKALK® 450 FD case study.
EU Ecolabel
2012/481/EU printed paper
2014/256/EU converted paper products
2019/70 Annex I graphic paper
2019/70 Annex II tissue paper
Blauer Engel
DE-UZ 5 - Sanitary paper products made of recycled paper
DE-UZ 14a - Recycled paper
DE-UZ 56 - Recycled cardboard
DE-UZ 72 - Printing and publication of papers
BFR 36
Nordic Swan
Paper Products - Chemical Module