biostream® ZERO

The highly effective chlorine dioxide concentrate for cleaning and disinfecting drinking water: against Legionella, E. coli, Pseudomonas and persistent biofilms.

With the active substance used by waterworks, you can reliably disinfect drinking water tanks, water-carrying pipes, dispensing systems and soda maker bottles, without costly plant technology.

Our guiding principle since 2001: "Disinfection in perfection".

Buy in the shop (German)Go to the dosing instructions

biostream® ZERO is a chlorine dioxide concentrate for drinking water that cleans and disinfects water tanks, pipes, hoses, dispensing systems and dental units.

Key facts

Active substance
Chlorine dioxide (ClO₂)
Form of supply
Two components: liquid component and tablet (250 ml) or powder (1000 ml, 5 litres)
Container sizes
250 ml, 1000 ml, 5 litres
Ready to use
around 3 hours after preparation
Shelf life
around 3 years before activation, two to three months after
Efficacy
99.9 % in 1,620 individual tests, Leibniz University Hannover
Regulatory framework
Chlorine dioxide in the list under Section 20 TrinkwV (German Environment Agency)
Manufacturer
biostream® GmbH, Sehnde
Standard
GEOhybrid grounding
Last updated
biostream® ZERO, TRAVEL and asepticaPRO: containers for drinking water disinfection

Choose a container size and order directly

biostream® ZERO is available in the shop in three container sizes, along with biostream® asepticaPRO in a small container for travel. Prices and shipping are shown with each product.

The buy buttons open the biostream® shop (German) at desinfektion-trinkwasser.de in a new window.

Not MMS, not CDL: biostream® ZERO is a disinfectant for water, not a medicine and not intended for ingestion. Why chlorine dioxide is not a medicine

How to use biostream® ZERO

Four steps that are the same for tanks, pipes, hoses and dispensing systems. Quantities and contact times are given in the dosing instructions.

  1. Prepare

    biostream® ZERO is supplied as a two-component system. Once combined, the solution is ready for use in around 3 hours, without complex plant technology.

  2. Calculate the quantity

    The basis is the total volume of water in the tank, pipes and boiler. The dosing calculator gives the required quantity of concentrate for the condition of your system.

  3. Allow to act

    Fill the tank to about 75 %, add the concentrate, top up and open the outlets until the solution arrives. Close the taps and wait for the contact time of the selected level.

  4. Drain and flush

    Drain the tank and pipes completely and refill with drinking water. How often this is necessary is stated in the dosing instructions and on your application page.

Calculate the quantity Frequently asked questions

Choose your application

biostream® ZERO is used in many different settings, from the dentist's chair to the dispensing system to the outdoor event. Choose your scenario:

biostream® ZERO in figures

Scientifically proven, independently tested and proven in practice.

Proven efficacy
99.9 %

In 1,620 individual tests by Leibniz University Hannover against germs typical of drinking water, with a contact time of only 5 minutes.

Ready to use in
3 hrs.

From preparation to a finished, highly effective disinfection solution, without complex plant technology.

Dosage requirement compared with hydrogen peroxide
25×

lower: 6 instead of 150 mg/l for system disinfection under DVGW code of practice W 291. Evidence

What do you receive, and how should you store it?

Two components: the liquid in the bottle and a solid component. For the 250 ml container, this is a tablet in the bottle cap; for 1000 ml and 5 litres, a powder mixture in a separate container. The whole container is activated; how this works is explained above under "Prepare" and in the dosing instructions.

Before activation, the product has a shelf life of around 3 years. The solid component must be stored dry: it is hygroscopic and draws moisture from the surrounding air. After activation, the solution keeps for two to three months, stored cool and dark in the sealed original container.

Buyers receive the safety data sheet as a link with their invoice. Use biocides safely. Always read the label and product information before use.

How long does it take to activate biostream® ZERO?

Around 3 hours. biostream® ZERO is supplied as a two-component system and is ready to use after a preparation time of around three hours, without complex plant technology. Before activation, the product has a shelf life of around 3 years, provided the solid component is stored dry.

What does biostream® ZERO work against?

Against the typical germs in drinking and process water: Legionella (Legionella pneumophila), E. coli, Pseudomonas aeruginosa and biofilms, in which these germs take hold. The proven efficacy is 99.9 % (Leibniz University Hannover, 1,620 individual tests, 5 minutes contact time).

Your advantages

  • Ready to use within just 3 hours
  • Effective across the entire drinking water pH range
  • Suitable for aluminium tanks
  • Suitable for disinfecting drinking water in times of crisis, emergency preparedness for blackouts & power cuts
  • 25 times lower dosage requirement than hydrogen peroxide (6 instead of 150 mg/l for system disinfection, DVGW code of practice W 291)
  • Highly effective against Pseudomonas aeruginosa, E. coli & coliform bacteria, Legionella (Legionella pneumophila) and Candida auris
  • Free of heavy metals (silver, copper)
  • Oxidative action on cell membrane, proteins and genetic material at the same time, not at a single point of attack

Rules and standards for chlorine dioxide

  • Drinking Water Ordinance (TrinkwV), Section 20: chlorine dioxide is included in the list of permitted treatment substances for disinfection
  • DIN EN 12671: chlorine dioxide generated on site for the treatment of drinking water
  • DVGW W 224: methods for the disinfection of drinking water with chlorine dioxide
  • DVGW W 291 and W 551-3: chlorine dioxide as a proven chemical for cleaning and disinfecting installations
  • Guideline No. 5 of the working group of the German coastal states on ship hygiene: chlorine dioxide for drinking water on board
  • DIN 2001-2: drinking water supply from non-stationary installations such as motorhomes and boats

What each rule means ›

Scientifically confirmed efficacy

Independent research and decades of practical experience confirm the performance of biostream® ZERO.

Dr. rer. nat. H.-D. Werlein, Leibniz University Hannover

Leibniz University Hannover confirms efficacy

A study commissioned by biostream® GmbH at the Institute of Food Science and Human Nutrition of Leibniz University Hannover (led by Dr. rer. nat. H.-D. Werlein) confirms in 1,620 individual tests an efficacy of 99.9 % of biostream® ZERO against germs occurring in drinking water, at contact times of only 5 minutes.

biostream® products have been used successfully since 2001 in rail vehicles, on ships, in hospitals and clinics and by well-known beverage manufacturers.

Biofilm study at the University of Hannover

Fighting Legionella and biofilms for good

Legionella (e.g. Legionella pneumophila) are an often underestimated water hygiene problem and the cause of Legionnaires' disease.

They settle in biofilms that hydrogen peroxide-based agents can hardly combat. Chlorine, too, is weaker than the active substance chlorine dioxide. biostream® ZERO acts deep into the biofilm; its active substance chlorine dioxide is included in the list of permitted treatment substances under Section 20 of the Drinking Water Ordinance.

More about biofilms & Legionella

Hydrogen peroxide and silver are not an alternative

biostream® ZERO complies with DIN 2001-2:2009-04 and is effective across the entire drinking water pH range. According to the German Environment Agency, hydrogen peroxide and silver-based agents are not disinfectants at all.

Hydrogen peroxide is not named as a disinfectant in the DIN standard. In the current UBA list of the German Environment Agency, too, it is listed exclusively as an oxidising agent. Under DVGW code of practice W291, it would need to be dosed 25 times more strongly to achieve the same effect. Silver, too, is listed only as a preservative, not as a disinfectant.

Criterion biostream® ZERO
(chlorine dioxide)
Hydrogen peroxide Silver
Listed as a disinfectant (DIN 2001-2 / UBA) Yes No, oxidising agent only No, preservation only
Effective across the entire drinking water pH range Yes limited not applicable
Dosage requirement for the same efficacy 25× (DVGW W291) not applicable
Effect in biofilms & against Legionella strong weak weak
Free of heavy metals Yes Yes No, contains silver

Check the label of your current product: if you find hydrogen peroxide listed as the active substance, then according to the German Environment Agency you are using not a disinfectant but an oxidising agent.

From small containers to tanker trucks

Whether dentist, yacht owner, camper or industrial company: biostream® ZERO is available in various container sizes and packaging. We deliver as individually as necessary. For travel, biostream® asepticaPRO even fits into travel luggage in small 10 ml vials.

Chlorine dioxide, the active substance in all biostream® products, is included in the list of permitted treatment substances under Section 20 of the Drinking Water Ordinance; the products comply with Article 95(2) of the Biocidal Products Regulation (EU) No 528/2012.

Trade, resellers and bulk orders

Businesses, practices, resellers and bulk buyers can enquire about quantities, container sizes and terms via the contact form, pre-sorted as business or reseller, or by phone at +49-(0)5138-708 78 38 (daily 8 am to 3 pm, Fridays until 12 noon).

Enquire as a business Enquire as a reseller Discover asepticaPRO

Trusted in practice

biostream® ZERO has been in use for over two decades at well-known companies, in hospitals, in public transport and in industry. An excerpt from our references:

References of biostream® GmbH (excerpt): well-known companies and institutions

European Chemicals Agency (ECHA) Federal Institute for Occupational Safety and Health (BAuA)

All statements on efficacy are based on biostream® GmbH's many years of experience and on information from technical literature, legislation, regulations and positive customer references.

What it is not

biostream® ZERO is not MMS and not CDL, and is not intended for ingestion. It is a biocidal product for disinfecting water and water systems, not a silver preparation, not a hydrogen peroxide product and not a dosing system.