AQUChem

Pulp & Paper

Retention aids, defoamers, biocides and scale inhibitors for paper machine white water circuits and effluent treatment.

Key Industry Challenges

White water clarity & fibre retention
Slime and biofilm in paper machines
Pitch and stickies control
Effluent colour removal
Scale on machine surfaces

Related Product Categories

Featured Products

biocides

Benzalkonium Chloride (BKC)

CAS: 8001-54-5

Quaternary ammonium cationic surfactant biocide with combined disinfecting and algae-killing properties. Low corrosivity makes it suitable for closed-loop systems.

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biocides

Bronopol (2-Bromo-2-Nitro-1,3-Propanediol)

CAS: 52-51-7

Fast-acting biocide effective at very low concentrations. Used in oilfield, paper and industrial water where quick microbial control is needed with minimal environmental persistence.

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biocides

CMIT/MIT Isothiazolinone 14%

CAS: 55965-84-9

Broad-spectrum isothiazolinone biocide (CMIT:MIT 3:1) for cooling water, paper mills and oilfield injection water. Long-lasting antimicrobial activity at low dosage.

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biocides

Chlorine Dioxide (ClO₂) Biocide

CAS: 10049-04-4

Chlorine dioxide is a powerful oxidizing biocide effective across a wide pH range (4–10), outperforming chlorine in neutral-to-alkaline conditions. Supplied as a stabilized solution or on-site generator system for municipal water, cooling towers, and food processing disinfection.

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biocides

Cooling Tower Biocide Package (Oxidizing + Non-oxidizing)

CAS: N/A (blend)

A dual-component biocide regimen combining an oxidizing agent (NaOCl or BrCl) and a non-oxidizing agent (DBNPA or CMIT/MIT) in an alternating dosage program for cooling tower water treatment. The alternating approach prevents microbial resistance and controls bacteria, algae, and biofilm per ASHRAE 188 guidelines.

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biocides

DBNPA (2,2-Dibromo-3-Nitrilopropionamide)

CAS: 10222-01-2

Fast-acting non-oxidizing biocide that degrades rapidly in water. Ideal for RO membrane systems and short-contact-time applications where persistent biocides are undesirable.

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biocides

Glutaraldehyde 50%

CAS: 111-30-8

Non-oxidizing biocide with rapid broad-spectrum kill and biodegradable residual. Preferred for oilfield water injection and systems where chlorine is incompatible.

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biocides

Legionella Control Biocide for Cooling Systems

CAS: N/A (blend)

Formulated chlorine-based or chlorine dioxide-based biocide system specifically designed for Legionella pneumophila control in cooling towers and building water systems. Engineered to maintain ≥1 mg/L free chlorine at pH 7.2–7.6 per ASHRAE 188-2018 and HSE ACOP L8 compliance frameworks.

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biocides

MIT (Methylisothiazolinone) 10%

CAS: 2682-20-4

CMIT-free isothiazolinone biocide for applications requiring reduced sensitization risk. Preferred biocide for cosmetics-adjacent and discharge-sensitive water systems.

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biocides

Peracetic Acid (PAA) Disinfectant

CAS: 79-21-0

Peracetic acid is a fast-acting, broad-spectrum oxidizing disinfectant that decomposes to harmless acetic acid and oxygen with no toxic residuals. Supplied as a 15% equilibrium solution, it is widely used in food processing, municipal wastewater disinfection, and membrane bioreactor (MBR) applications.

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biocides

Sodium Dichloroisocyanurate (SDIC)

CAS: 2893-78-9

Stable chlorine-releasing disinfectant for drinking water, swimming pools and industrial water. Slower chlorine release than calcium hypochlorite provides longer residual.

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biocides

Sodium Hypochlorite Solution (10–15%)

CAS: 7681-52-9

Sodium hypochlorite solution is the most widely used liquid oxidizing biocide for water disinfection, providing fast-acting broad-spectrum kill against bacteria, viruses, and algae. Supplied at 10–15% available chlorine for dosing into drinking water, wastewater, and cooling systems.

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