Biofouling can affect the operation of membranes such as reverse osmosis (RO) or nano-filtration (NF) 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 membrane antifouling microbiocides protect industrial membrane systems from microbiological fouling so they can supply the quantity and quality of water required


Some of our products are listed below. Not all products are available for sale or registered/approved for use in all countries.
Contact your sales representative or refer to our Contact Form to learn about product availability and approvals in your country

Membranes Treatment

Product Name

Active Ingredient *

Features & Benefits

AQUCAR™ DB 20 Water Treatment Microbiocide


  • 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)

KATHON™ WT 1.5 Biocide



  • 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

*DBNPA: 2,2-dibromo-3- nitrilopropionamide / CMIT/MIT: 5-chloro-2-methyl-4-isothiazolin-3- one & 2-methyl-4-isothiazolin-3-one