Reverse Osmosis

Protect the integrity of your membranes and decrease downtime due to cleaning

Membrane Biofouling Solutions

Biofouling can affect the operation of reverse osmosis membranes, requiring operators to temporarily stop water production operations to remove and clean the membranes. Not only is the down time costly, but the frequent cleaning can potentially lead to shorter membrane life. An effective membrane biofouling management program should include both contamination control and cleaning procedures to optimize operations and help ensure water reliability.

Our reverse osmosis antifouling microbiocides protect RO systems from microbiological fouling so they can supply the quantity and quality of water required.

Select Products


Product Name Active Ingredient Features & Benefits
AQUCAR™ DB 20 Water Treatment Microbiocide 2,2-Dibromo-2-cyanoacetamide (DBNPA)
  • Controls bacteria that contribute to biofouling
  • Can be used economically online at low dosage to inhibit biofilm formation
  • Offline use is recommended as part of Clean-in-Place (CIP) procedure
  • Fast-acting formulation
  • Compatible with thin-film composite (TFC) polyamide RO membranes at use concentration levels
  • For off-line or on-line use in various industrial membrane system types (RO, ultrafiltration, nanofiltration and microfiltration)
AQUCAR™ MEM 20 Water Treatment Microbiocide 2,2-Dibromo-2-cyanoacetamide (DBNPA)
  • Holds NSF Std 60 Certification for off-line use in RO systems that produce potable water*
  • Controls bacteria that contribute to biofouling
  • Compatible with thin-film composite (TFC) polyamide RO membranes at use concentration levels

*Due to the variance in country/local regulatory requirements, user must confirm for their country/location that all approvals are in place prior to use.

KATHON™ WT 1.5 Biocide chloromethyliosothizolone/
methylisothiazolone (CMIT/MIT)
  • Controls biofilm, bacteria, fungi and algae in industrial wastewater systems
  • For off-line or on-line use in ultrafiltration and non-medical/non-potable RO systems
  • OECD 301B inherently biodegradable

View all reverse osmosis biofouling solutions-related products