RoCide-DB5

Summary

Product identification

• Product Name: RoCide® DB5
• Product Type: Fast-acting, non-oxidizing biocide
• Active Ingredient: Dibromo nitrilopropionamide (DBNPA)
• Concentration: 5% solution

Operating limits

Feed water

• Application: Reverse Osmosis (RO) and Nanofiltration (NF) systems.
• Use with membrane types: Polyamide and cellulose acetate membranes from all major manufacturers.

Product water

• Discharge: Degrades naturally and rapidly, making it compliant with strict discharge regulations.

Application

Shock Treatment (On-line Feed)

• Method: Intermittent on-line feed for "shock treatment" control.
• Dosing: Used as needed to control fouling.
  • Typical starting point: 200 mg/l for one hour per week.
  • Optimization: Dose rate and frequency should be optimized based on the bacteriological challenge of the feedwater.
• Potable applications: Refer to local regulations.

RO Membrane Cleaner

• Method: Applied as the first stage of cleaning.
• Concentration: 200-800 mg/l, depending on the degree of fouling.
• Circulation time: 1-3 hours.
• Dosing during circulation: Best added in batches of 200 mg/l, four times during the circulation period.

Specifications

• Appearance: Clear yellow liquid
• pH (as supplied): 1.5-5.0
• Specific gravity (@20°C): 1.1-1.2

Packaging and Storage

• Storage: Use product as supplied, do not dilute in storage tank.
• Available formats:
  • Pail: 20 kg
  • Drum: 200 kg
  • IBC tote: 1090 kg
• Delivery: Information on drumless or bulk tanker delivery available on request.

Performance Benefits

• Instantaneous antimicrobial activity as a non-oxidizing slimicide and bactericide.
• Powerful against bacteria, fungi, and algae.
• Degrades rapidly to comply with strict environmental discharge regulations.
• Suitable for use with polyamide and cellulose acetate membranes from all major manufacturers.
• Compatible with other Avista cleaners.

Disclaimer

Extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror