Oxidizing Biocides

With a water treatment heritage of more than a century, Lonza Water Treatment supplies advanced product technologies to support the sustainability of water, energy and the protection of critical water management assets.

Lonza offers a wide range of oxidizing biocides that can be used in an assortment of applications to aid in the control of microorganisms. This wide selection of oxidizing biocides enables customers to select the most appropriate product technology to create a treatment program tailored to their specific application.

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Frexus® Granular
Frexus® Granular

A fast-dissolving Calcium Hypochlorite granulated product for the control of bacteria and fungi in agricultural and industrial premises as well as post-harvest fruits and vegetables washing and processing facilities. Frexus® Granular is approved by the APVMA for use in controlling bacteria and fungi in agricultural and industrial premises as well as post-harvest fruits and vegetables washing and processing facilities.*

  • Dry, solid and stable product
  • Granules for direct dilution in the washing water
  • Helps preserve fruit and vegetables
  • Acts to eliminate the fungi that causes undesirable fermentation
  • Can be used for the direct disinfection of surfaces, equipment and utensils which come into contact with foodstuffs during processing
  • Can be dosed manually or with an automated granular feeder system
  • Product packaging size: 10kg bucket

*Please check local regulation or consult your local Lonza representative for further information.

HTH granular
HTH® Granular

The reliable HTH® granular range of products is strong oxidizers, allowing for the continual chlorination of water. These products provide efficient disinfection and aid in the elimination of bacteria, viruses, fungi and algae over a broad spectrum of applications. Such applications include industrial, municipal, commercial and food and beverage applications.

  • Efficient and easy to handle form of active chlorine when compared to a high concentrated solid form of active chlorine
  • Can be used as a shock treatment
  • Treats microbial organisms that could cause corrosion of equipment, therefore resulting in potential saving of water, energy and other costs; also can improve heat transfer
  • Typical available chlorine content of ±68%
  • Can be dosed manually or with an automated granular feeder system
  • Product packaging size: 10kg bucket, bulk product packaging is also available on request; contact your Lonza representative for further information
Briquettes
Constant Chlor® Briquettes
Constant Chlor® Briquettes

With a scale inhibiting composition that is remarkable, the “pillow-shaped” briquettes are designed for use in Constant Chlor® Plus Feeders. The smaller size and briquette shape provide an optimum spray bed pack, resulting in outstanding solution consistency.

  • Contains a scale inhibitor
  • Longer shelf life than liquid bleach
  • Product packaging size: 10kg and 25kg buckets
HTH® Briquettes
HTH® Briquettes

The unique “pillow-shaped” briquettes are designed to be preferably used in one of the Lonza calcium hypochlorite feeders. Their particular rounded shape permits for consistent dissolving as the absence of edges on the briquettes prevent them from stacking, allowing a proper distribution of the water in the interstitial space between the briquettes.
Such chlorine solutions can be used in water disinfection, which will efficiently diminish bacteria, viruses, fungi and algae found in water systems

Unity Water Constant Chlor® MC4 Feeder Case Study

Albany Creek Constant Chlor® MC4-50 Feeder Case Study

Frexus briquettes
Frexus® Briquettes

A quality product designed to be used with automated briquette feeder systems allowing for ease-of-use and a constant and reliable source of disinfection. The briquettes, each weighing 7 grams, are approved by the APVMA for use in controlling bacteria and fungi in agricultural and industrial premises as well as post-harvest fruits and vegetables washing and processing facilities.*

  • Dry, solid and stable product
  • 7 gram briquettes for use in an automated briquette feeder system
  • Helps preserve fruit and vegetables
  • Acts to eliminate the fungi that causes undesirable fermentation
  • Can be used for the direct disinfection of surfaces, equipment and utensils which come into contact with foodstuffs during processing
  • Product packaging size: 10kg bucket

*Please check local regulation or consult your local Lonza representative for further information.

Pulsar briquettes
Pulsar® Briquettes

With a scale inhibiting composition that is remarkable, the “pillow-shaped” briquettes are designed for use in Pulsar® Feeders. The smaller size and briquette shape compact closely to fill the entire bottom of the briquette bed evenly. And then, the Pulsar® spray technology dissolves the briquettes evenly for a consistent and accurate feed rate.

  • Contains a scale inhibitor
  • Longer shelf life than liquid bleach
  • Cyanuric acid free
  • Product packaging size: 20kg bucket
Tablets
HTH® Disinfecting Tablets
HTH® Disinfecting Tablets

A 140g disk-shaped Calcium Hypochlorite tablet that can be used manually or with a Lonza approved chlorination system. This product is an effective fungicide and bactericide for the disinfection of potable water.

  • Typical dissolution rates average between 15-22 hours depending on water temperature, water characteristics, flow velocities and dynamics
  • Designed for Lonza Sanikit™ Tablet Feeder System or to be dosed manually
  • Dry, solid and stable product
  • Reduces slime growth in water systems
  • Aids in killing harmful bacteria, waterborne diseases and viruses
  • Can be used for potable, waste, sewage and other industrial water applications     
  • Product packaging size: 14.5kg bucket
HTH® Duration® Tablets
HTH® Duration® Tablets

A 300g bullet-shaped Calcium Hypochlorite tablet that provides a slower release of the active ingredient than normal HTH® Disinfecting Tablets. This product is an effective fungicide and bactericide for the disinfection of potable water.

  • 68% available chlorine
  • Slow release of active ingredient compared to HTH® Disinfecting Tablets  
  • Used in municipal potable water treatment tanks and reservoirs across Australia for the effective re-chlorination of drinking water
  • Meets Australian Drinking Water Guidelines (ADWG, 2011) for water treatment chemicals
  • Do not leave a residue
  • Typical dissolution rates average between 50–55 hours depending on water temperature, water characteristics,  flow velocities and dynamics
  • To be dosed manually or with an effective reservoir canister/dispenser
  • Dry, solid and stable product
  • It is used in potable water treatment as top-up chlorination or for the re-chlorination in reservoirs. In addition, it can also be used in swimming pools when placed in the skimmer
  • Reduces slime growth in water systems
  • Aids in killing harmful bacteria, waterborne diseases and viruses
  • Product packaging size: 20kg bucket
Sticks
HTH® Stick
HTH® Stick

An economical and effective product, HTH® Stick comprises 300g slow dissolving and individually wrapped sticks, helping to promote product control and sanitation in swimming pools (directly inserted into the skimmer with 2S Dispenser) and in drinking water systems. An oxidizing product that diminishes harmful bacteria, viruses, fungi and algae found in water systems.

For guidance on the different applications, please refer to local regulation as well as contact your local Lonza office.

HTH® Stick can be used as regular pre-chlorination for remote water reservoirs, decreasing the risk of contamination by unwanted fecal bacteria coming from agricultural activities or accidental sources.

  • Helps to prevent over-stabilization when used for residential and commercial pools
  • Conveniently packaged
  • Can be dosed manually or used with 2S Dispernser
  • Product packaging size: 45kg buckets
Dantobrom briquettes
Dantobrom® RW Briquettes

Dantobrom® RW Briquettes are a high performance, solid bromine biocide that offer cost-effective microbial control. As broad-spectrum bactericides, fungicides and algaecides, the briquettes can be used for a variety of industrial applications.

This unique product provides a controlled release of the active bromine and chlorine. In addition, Dantobrom® RW Briquettes provide the benefit of bromine and have a higher total halogen content with greater solubility than other solid bromine biocides such as BCDMH.

Dantobrom® RW Briquettes can be used to control bacterial, fungal and algal slimes in a wide variety of water systems, including recirculating and once-through systems, evaporative condensers, influent systems, industrial wet scrubber systems, sewage systems, auxiliary water systems, air washers and brewery pasteurizers.

Along with their novel hydantoin chemistry, Dantobrom® RW Briquettes provide a number of key benefits:

  • Improved wet and dry physical stability
  • Increased solubility
  • Higher purity by eliminating binders
  • Reduced dusting
  • Minimal corrosion
  • Minimizes wood delignification
  • Suitable for both slug and continuous feed
  • Compatible with other water treatment additives
  • To be dosed via brominators
  • Product packaging sizes:
    • Dantobrom® RW Briquettes: 10kg bucket
    • Dantobrom® RW Granular: 10kg bucket
Dantoin BCDMH RW Tablet
Dantoin™ BCDMH RW Tablets

A broad-spectrum biocide effective on bacteria and fungi, Dantoin™ BCDMH RW Tablets release active bromine and active chlorine when in contact with water. Their 20g cylindrical form allows a slow release of the halogenous acids, ensuring consistent disinfection.

Typically dosed via pressurized feeders (brominators), Dantoin™ BCDMH RW Tablets are used in various applications: from pool and spa disinfection to the constant sanitization of raw water entering cooling towers to avoid microbial contamination and to improve heat transfer.

They are also used in pasteurizers, air scrubbers and as a versatile disinfectant.

Available in 20kg buckets.