Quaternary Ammonium Compounds (QAC), which
have a reputation for their efficacy, can be used as a general biocide and
algaecide. These products help to control bacteria, algae and fungi slimes and
macro-fouling in water systems.
Lonza Water Treatment offers a wide range
of QAC technologies that can be used in many applications, including
industrial, commercial, municipal and surface water treatment applications,
either as products or as part of formulations.
The Barquat™ PQ product is a non-foaming cationic polymeric
quaternary ammonium algaecide. This product acts as dispersant agent and aids
in water clarification as it assists in the coagulation of small particles.
The Barquat™ PQ product, which has a 60%
concentration in polyquat, shows a high degree of
efficacy against algae when compared to other algaecides. However, for optimal control in cooling
water, Lonza recommends a supplementary oxidizer such as our Dantobrom® RW
At recommended use concentrations the
Barquat™ PQ product is compatible with cationic and non-ionic surfactants.
- Effective against planktonic and sessile algae
- Provides water clarification and biodispersion
- Helps to reduce unpleasant odours
- Helps to reduce halogen demand and filter clogging
- Stable in hard water and over a broad pH and temperature range
- Non foaming and simple-to-use and formulate
- Synergy with halogens
- Test kit available therefore easy to monitor
- Product packaging size: available in drums or IBC’s
used as an active ingredient in water treatment formulations, this product has
been found to provide effective biocidal action against a broad spectrum of
microbial organisms such as bacteria, fungi, viruses and algae. This “first” generation quaternary ammonium
compound delivers potent germicidal action in cooling water applications. The Barquat™ MB50 product is a blend of Alkyl
Dimethyl Benzyl Ammonium Chlorides.
Product packaging size: available in drums or IBC’s
The Bardac™ LF80
product is a low-foaming Didecyldimethylammoniumchlorides (DDAC) with a
broad-spectrum biocidal activity against both gram-positive and gram-negative
organisms. This product is an excellent algaecide at economical concentrations.
This product has
applications for use in the food and dairy industry, swimming pools and cooling
towers as well as in the paper industry. It also shows synergistic effects when
used in combination with aldehydes and complexing agents like EDTA.
Product packaging sizes: available in drums and IBC’s