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.

Granular
HTH® Granular
HTH® Granular

The reliable HTH® granular range of products are 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
  • Typical available chlorine content of ±68%
  • Product packaging sizes: 10kg, 25kg, 40kg and 45kg pails  
HTH® Easiflo® Granular
HTH® Easiflo® Granular

A high strength product, HTH® Easiflo® Granular is trusted to tackle the disinfection of water systems. It effectively aids in controlling microbial contamination found in the water and includes anti-scaling properties, an added advantage.         

  • Has a typical 68% available chlorine content
  • To be dosed manually, via pump and day tank systems
  • Product packaging sizes: 25kg and 40kg pails
Contstant Chlor CCP G Granular
Constant Chlor® CCP-G Granular

Constant Chlor® CCP-G Granular is a strong oxidizer and can be used for drinking and waste water treatment applications. Its high oxidizing power makes Constant Chlor® CCP-G Granular a particularly efficient process aid to address the chlorine demand caused by organic matter and dissolved metals in the water. Constant Chlor® CCP-G Granular is an effective disinfectant and provides an appropriate chlorine residual throughout the distribution network.

For wastewater treatment systems, Constant Chlor® CCP-G Granular is used in tertiary sanitization before the treated water is to be discharged into the environment, helping to avoid potential contamination downstream.

Constant Chlor® CCP-G Granular can also be used in cases of microbial outbreaks or natural disasters, as it can sanitize large quantities of water.

  • Has 68% available chlorine content
  • NSF 60 certified; meets European Norm EN900:2007 Standards
  • To be dosed manually or via a day tank system
  • Product packaging size: 45kg pails
Briquettes
Constant Chlor® Briquettes
Constant Chlor® Briquettes/Constant Chlor® CCP-B7

With a scale inhibiting composition that is remarkable, the pillow-shaped briquettes are designed for use in dedicated feeder systems. The smaller size and briquette shape provide an optimum spray bed pack, allowing for a better repartition of the sprayed water, aiding in homogenous dissolving and a consistent chlorine solution.The specifically formulated 7 gram briquettes are used for drinking and waste water treatment applications as well as for the sanitation of industrial processes. Its broad spectrum of efficacy tackles the halogen demand of the water.

  • Contains a scale inhibitor
  • Longer shelf life than liquid bleach
  • High activity in a solid concentrate reduces storage and transportation costs when compared to liquid alternatives of a lower concentration
  • Product packaging size: 22.7kg and 45kg pails
HTH® Easiflo® Briquettes
HTH® Easiflo® 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.

  • Has typical 68% available chlorine content
  • Contains an anti-scaling agent
  • Used in potable water
  • To be preferably dosed via dedicated HTH® Easiflo® Feeder Systems
  • Product packaging sizes: 10kg, 25kg, and 45kg pails  

HTH® Easiflo Premium System Equipment Brochure (EN) 

HTH® Easiflo Premium System Equipment Brochure (FR)

HTH® Easiflo Premium System Equipment Brochure (DE) 

Easiflo® 20/50/100 First Brochure (EN)

Easiflo® 20/50/100 First Brochure (FR) 

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 pails
HTH duration tablet
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  
  • 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, 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: 45kg pails
Sticks
HTH® Stick
HTH® Stick

An economical and effective product, the 300g slow dissolving, individually wrapped sticks provide controlled dosing sanitation in swimming pools (inserted into strainer basket or dedicated feeder) and 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
  • Product packaging size: 45kg pails  
Shock Powder
HTH® Shock
HTH® Shock

A fast-dissolving Calcium Hypochlorite with high available chlorine content (up to 78%), this is an ideal product to shock the volume of water easily and effectively and obtain quick results in the reduction of microbial counts.

  • Helps to prevent overstabilization when used for residential and commercial pools
  • Can be used for the sanitation of a new drinking water connection before commissioning
  • Efficient on filamentous bacteria when poured on the surface of waste water clarifiers
  • Aids in clearing green and/or cloudy water
  • Fast-dissolving product
  • Long-shelf life (±30 months) when stored correctly, making it attractive to service engineers
  • Can be dosed manually
  • Product packaging size: 25kg pails  
Lonza effervescent tablet
Lonza Effervescent Tablets

Lonza’s effervescent tablets are specially formulated to tackle hard surface disinfection.

The tablets can be used on many surfaces such as floors, bins, sinks, and lavatories that are associated with public, industrial, medical, veterinary and laboratory applications. It can also be used to disinfect commercial pool surroundings.

  • Active ingredient: Sodium Dichloroisocyanurate (NaDCC)
  • Efficient on bacteria, viruses and fungi according to multiple European and French standards
  • Suitable for the contact of foodstuffs
  • Quick-dissolving without leaving a residue
  • Can be dosed manually
  • Long shelf-life (up to 5 years) if stored in accordance with instructions on label
  • Available as 3.35g or 5g tablets
  • Product packaging sizes: 0.5 kg and 1kg plastic and child-proof pails  
HTH® Granufast®
HTH® Granufast®

The HTH® Granufast® product solution, as the name suggests, consists of fast-dissolving granules that destroy bacteria, viruses, fungi and organic contaminants in the water. This reliable product has a high level of stabilization against the destructive action of ultraviolet radiation in sunlight. Average available chlorine content is ±56% and is compatible with all filtration equipment.

  • Quick dissolving granular product
  • Has the additional benefit of leaving no residue
  • Suitable for water of any hardness, even extremely hard water
  • Easy to use product pack; includes a dosing cup
  • Can be dosed manually
  • Not a class 5.1 oxidizer
  • Product packaging size: 25kg pails  
HTH® Maxitab® Regular
HTH® Maxitab® Regular

As a compacted form of TCCA (Symclosene), HTH® Maxitab® Regular provides a long-lasting efficacy on bacteria, viruses and fungi that can develop in swimming pools when compared to typical unstabilized chlorine forms.

It is a reliable product that has a high level of stabilization against the destructive action of ultraviolet radiation in sunlight. Average available chlorine content is ±90% and is compatible with all filtration equipment.

  • Solid form minimizes the potential for worker exposure, spills or other environmental releases
  • Leaves no residue
  • Average available chlorine content of ± 90%
  • Convenient and easy-to-use packaging as tablets are individually wrapped
  • Can be dosed manually
  • Product packaging size: 25kg pails  
HTH® Carral® Granular
HTH® Carral® Granular

A remarkable product that removes algae and mold from grout joints associated with water treatment systems in swimming pools. The granules, which are slow-dissolving when compared to typical unstabilized chlorine forms, leave no residue and have available chlorine of ±90%.

  • Compatible with all filtration equipment
  • Suitable for all water of any hardness, even extremely hard water
  • Non-foaming formulation
  • Easy to use product pack; includes a dosing cup
  • Can be dosed manually
  • Product packaging sizes: 5kg and 25kg pails  
Dantoin Granular
Dantoin® BCDMH Granular

As a powerful disinfectant and an effective, broad-spectrum bactericide and fungicide, Dantoin® BCDMH Granular aids in the control of bacterial, fungal and algal slimes in diverse applications such as:

  • Commercial and industrial cooling systems and scrubbers
  • Pasteurization units
  • Sewage systems
  • Paper mill process water (paper used in packaging for food contact as well as no food contact)
  • Product packaging sizes: 20kg pails or in super sacks

Dantoin® BCDMH Granular is a high purity product. The granules are of a controlled particle size, with a diameter typically between 3 – 8mm.

Dantoin® BCDMH Granular disinfects water through the controlled release of halogens (Bromine and Chlorine), and has a dissolving rate of 0.25g/100g at a temperature of
25°C.

Dantoin® BCDMH Granular is dosed via a brominator running either under pressure or at the atmospheric pressure.

Dantoin BCDMH Powder
Dantoin® BCDMH Powder

Dantoin® BCDMH Powder is a powerful disinfectant that exhibits the same benefits as Dantoin® BCDMH Granular but has a quicker dissolving rate than Dantoin® BCDMH Granular, an added advantage.

Specifically recommended for the treatment of recirculating water in the wet-end section of a paper machine, Dantoin® BCDMH Powder is typically dosed via a brominator running either under pressure or at the atmospheric pressure.

Product packaging size: available in super sacks where sizes can be adapted to the various needs of the industry.

Dantoin BCDMH Tablets
Dantoin® BCDMH Tablets

A broad-spectrum biocide effective on bacteria and fungi, Dantoin® BCDMH 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 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.

Product packaging sizes: 5kg and 20kg pails

Dantobrom granular
Dantobrom® RW Briquettes & Dantobrom® RW Granular

Dantobrom® RW products are high performance, solid bromine biocides that offer cost-effective microbial control. The products, which come in briquette and granular form, are broad-spectrum bactericides, fungicides and algaecides that can be used for a variety of industrial applications.

The unique products provide a controlled release of the active bromine and chlorine. In addition, Dantobrom® RW products 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 products 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 its novel hydantoin chemistry, Dantobrom® RW products 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 and 22.5kg pails
    • Dantobrom® RW Granular: 10kg and 20kg pails