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Water Treatment Chemicals Antiscalants · Biocides · Cleaners

BWA Flocon, Bellacide, Hypersperse, Vitec, Kleen, and RoCide — NSF-certified and membrane-approved chemicals sourced through Lenntech.

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Antiscalants, Biocides, Cleaners & More

Six categories of specialty chemicals — each with verified specifications from Lenntech's official datasheets.

Antiscalant Chemical Dosing at Water Plant
BWA / SUEZ / KURITA

Antiscalants & Antifoulants

  • BWA Flocon 135: RO antiscalant, pH 3.5–4.5, NSF 60
  • BWA Belgard EV2030: MSF distillation, pH 8–8.6
  • Hypersperse MDC772: 2–6 mg/L, wide pH range
  • Kurita Vitec 5100: 2–5 mg/L, silica control
  • Controls: CaCO₃, CaSO₄, BaSO₄, SrSO₄, silica
View Antiscalants →
Biocide Chemical Treatment
BWA / KURITA

Biocides & Biofouling Control

  • Bellacide 355: Non-oxidizing, 250 ppm, pH 6–8
  • LiquiBrom 4600: Oxidizing, pH 6–8, SG 1.51
  • Kurita RoCide DB5: Non-oxidizing, pH 1.5–5.0
  • Active ingredients: TTPC, DBNPA
  • Effective against: bacteria, algae, fungi
View Biocides →
Membrane Cleaning Chemicals
BWA / SUEZ

Membrane Cleaners

  • Flocon MC3: Low pH (3.0–3.5), inorganic scale
  • Kleen MCT404: Neutral pH, organic foulants
  • Flocon MC11: Alkaline, organic & biological
  • Standard dilution: 25 g/L (MC3)
  • Applications: RO, NF, UF, MF membranes
View Cleaners →
Coagulation and Flocculation Water Treatment
SUEZ

Coagulants & Flocculants

  • SoliSep MPT series: organic coagulants
  • Compatible with: Hypersperse MDC series
  • Function: colloidal particle removal
  • Application: pre-treatment before RO
  • Also: SDI reduction, turbidity control
View Coagulants →
Boiler and Cooling Water Treatment
BWA / LENNTECH

Boiler & Cooling Chemicals

  • OptiSperse HP: phosphate + polymer dispersant
  • Belclene 810: biodegradable antiscalant
  • Scale control: CaCO₃, CaSO₄, Ca₃(PO₄)₂
  • Corrosion control: oxygen scavengers, amines
  • NSF certified: for potable water systems
View Boiler & Cooling →
Environmentally Friendly Water Treatment
BWA

Biodegradable Antiscalants

  • Belclene 810: biodegradable scale inhibitor
  • Function: threshold inhibition + crystal modification
  • Targets: CaCO₃, CaSO₄, BaSO₄, SrSO₄
  • Compatible: RO, NF, MSF, MED systems
  • Benefit: environmentally preferred chemistry
View Green Solutions →
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Compare Chemical Products

All specifications below are taken directly from Lenntech's official datasheets.

Parameter BWA Flocon 135 BWA Bellacide 355 Hypersperse MDC772 Kurita Vitec 5100 Kleen MCT404 Kurita RoCide DB5
Category Antiscalant Biocide Antiscalant Antiscalant Membrane Cleaner Biocide
Brand BWA BWA SUEZ Kurita SUEZ Kurita
Type RO Antiscalant Non-Oxidizing Biocide Antiscalant / Antifoulant RO / NF Antiscalant Neutral pH Cleaner Non-Oxidizing Biocide
pH Range 3.5 – 4.5 6 – 8 Wide range 5.0 – 7.0 Neutral (~7) 1.5 – 5.0
Appearance Pale yellow liquid Clear, colorless liquid Liquid Clear, amber liquid Liquid Clear yellow liquid
Specific Gravity 1.13 – 1.18 0.85 – 1.0 — 1.15 – 1.25 — 1.1 – 1.2
Dosing Max 10 mg/L 250 ppm 2 – 6 mg/L 2 – 5 mg/L 0.5–1.0% 200–800 mg/L
Application RO systems Industrial water systems RO, NF, EDR Seawater & municipal RO RO, MF, UF, NF RO / NF membranes
Active Ingredient Phosphinocarboxylic acid TTPC (5%) Phosphonate blend Polycarboxylate Anionic surfactant DBNPA (5%)
Certification NSF/ANSI 60 Membrane approved Coagulant compatible NSF/ANSI 60 CA & PA compatible Membrane compatible
Packaging Pail 25kg, Drum 250kg, IBC 1000kg Pail 19kg, Drum 200kg, IBC 1000kg Drum 200L, IBC Pail, Drum Pail, Drum Pail, Drum
Data source: All specifications are taken directly from Lenntech official datasheets (BWA Flocon 135, BWA Bellacide 355, SUEZ Hypersperse MDC772, Kurita Vitec 5100, SUEZ Kleen MCT404, and Kurita RoCide DB5). Performance data is given for information purposes only and is subject to modification depending on actual water quality. Contact TOP Technique for chemical selection assistance.
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When to Use What

Three common scenarios — and the chemical program that solves them.

💧

Scale Formation

Use Flocon 135, Hypersperse MDC772, or Vitec 5100 to prevent CaCO₃, CaSO₄, BaSO₄, and SrSO₄ deposition on RO membranes. For MSF plants, use Belgard EV2030.

🦠

Biofouling

Use Bellacide 355 for non-oxidizing control of bacteria, algae, and fungi. For oxidizing treatment, use LiquiBrom 4600. For shock treatment, use RoCide DB5.

🧼

Membrane Fouling

Use Flocon MC3 for inorganic scale removal (low pH). Use Kleen MCT404 for organic foulants, silt, and colloidal deposits (neutral pH). Combine for complete CIP.

How Chemicals Protect RO Membranes

Watch how reverse osmosis membranes separate salt from seawater — and why antiscalants, biocides, and cleaners are essential to maintaining performance. This 3D animation shows the full desalination process, including the chemical dosing and CIP stages that TOP Technique supports every day.

Request Chemical Program →
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Need a Chemical Program for Your Plant?

Send us your water analysis and system details — our engineers will recommend the optimal antiscalant, biocide, and cleaning protocol, and provide a full quotation.

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