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Pulp & Paper and Mineral Slurries
Control slime in paper making and preserve mineral slurries

Pulp & Paper and Mineral Slurries

Efficient pulp, paper and mineral slurry operations require effective slime control. DuPont Microbial Control's solutions help control slime-forming bacteria that cause offensive odors, equipment corrosion and even spots and breaks in paper. Our solutions can also help protect your coatings, mineral slurries, latexes, starch solutions and other pigments and binders from microbial contamination to help increase operation efficiency and minimize downtime.

Our portfolio of microbial solutions protect the range of processes and applications vulnerable to microbes—offering fast, effective and functional contamination control of slime and mold.

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Product Name

Active Ingredient

Features & Benefits

chloromethyliosothizolone/methylisothiazolone (CMIT/MIT)

  • Supplied as 14% ingredient formulation
  • Broad-spectrum biocide effective against biofilm
  • Rapid inhibition of microbial growth and enzyme synthesis
  • Effective at low concentrations
  • OECD 301B inherently biodegradable

chloromethyliosothizolone/methylisothiazolone (CMIT/MIT)

  • Supplied as 1.5% ingredient formulation
  • Broad-spectrum biocide effective against biofilm
  • Rapid inhibition of microbial growth and enzyme synthesi
  • Effective at low concentrations
  • OECD 301B inherently biodegradable

Product Name

Active Ingredient

Features & Benefits

AQUCAR™ BP Family of Products 

Bronopol

  • Broad-spectrum bacterial efficacy
  • Especially effective in combination with other biocides
  • Controls slime-forming bacteria
  • Controls anaerobic bacteria responsible for microbiologically induced corrosion
  • Free-flowing, crystalline solid
  • Supplied as a 10% ingredient formulation

AQUCAR DB Family of Products

2,2-Dibromo-2-cyanoacetamide (DBNPA)

  • Compatible with all types of water treatment chemicals
  • Broad-spectrum control of bacteria, fungi, yeast, cyanobacteria and true algae
  • Fast acting, can be used as a knockdown biocide treatment
  • Free-flowing, white crystalline solid
  • Supplied as a 20% ingredient formulation

Glutaraldehyde 

  • Effective against bacteria and fungi in paper making systems and useful in inhibiting slime formation in all areas of paper making process
  • Especially effective in controlling bacterial growth in aqueous pigments and filler slurries
  • 50% liquid formulation
  • Compatible with commonly used “wet-end” additives
  • Compatible with anionic, non-ionic and cationic dispersants

Glutaraldehyde + quaternary ammonium (QUAT)

  • Especially effective in controlling slime-forming bacteria, sulfate-reducing bacteria and algae
  • Facilitates both rapid sanitation and durable preservation of the end product
  • Recommended in applications where a rapid speed of kill needs to be combined with storage preservation of final product

Glutaraldehyde + quaternary ammonium (QUAT)

  • Specially formulated to help rapidly clean microbiologically fouled surfaces
  • Extremely fast acting
  • Compatible with most commonly used scale and corrosion inhibitors