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1
Introduction to HUWA-SAN

• Ecological Disinfection

2
Opening

• What is HUWA-SAN?
• Difference between H2O2 and HUWA-SAN
• Test results
• Applications Fields of application
• Comparison Huwa-San - other disinfectants
• Advantages of HUWA-SAN
• Measuring and monitoring instruments

3
Huwa-San

• 1985 Development by Dr. Heinz Hungerbach
• (Germany)
• 1990 Agreement Roam Chemie/Hungerbach Inc.
• Roam Chemie marketing/sales in Belgium
• 1998 Dr. Heinz Hungerbach (77)
• 2001 Roam Chemie bought formula/process
• Roam Chemie production/development/
• marketing/sales
  worldwide

4
What is Huwa-San?

• Disinfectant based on
• Stabilised and activated hydrogen peroxide
• (H2O2)
• Colloidal silver as stabiliser and activator
• (Ag)

5
Difference between H2O2 and HUWA-SAN

• Hydrogen peroxide
• Decomposes slowly, spontaneously in water and
  oxygen
• H2O2 IP H2O O2
• water oxygen
• Not stable in closed, clean packaging!

6
Summary

• Hydrogen peroxide
• Not stable
• slow, spontaneous decomposition in closed
  packaging
• Almost complete decomposition in contact with
  pollution
• Moderate disinfection

• Huwa-San
• Stable in closed packaging
• (2 3 years)
• Depot-storage effect
• non-reacted hydrogen peroxide remains stabilised
• Excellent disinfection

7
Applications

• Surface disinfection
• First clean and rinse with water (if necessary)
• Concentration 1-2 (TR-50)
• Method sprinkle
• Contact period minimum 15 min.
• Food let it dry or rinse if still wet
• Non-food let it dry, do not rinse

8
Applications

• Material disinfection
• First clean and rinse with water (if necessary)
• Concentration 0,5-1 (TR-50)
• Method submerge
• Contact period minimum 15 min.
• Food/non-food let it dry, do not rinse

9
Applications

• Pipe system disinfection
• Pre-cleaned
• Concentration 250-500 ppm (TR-50)
• Method dosage
• Contact period minimum 1 hour
• Food empty, rinse
• Non-food empty, do not rinse

10
Applications

• Pipe system cleaning and disinfection
• Not precleaned
• Concentration 0,1-0,3 (TR-50)
• Method dosage
• Contact period minimum 1 hour
• Food/non-food empty, rinse

11
Applications

• Storage tank disinfection
• Method 1 fill tank with Huwa-San solution
• First clean and rinse with water (if necessary)
• Concentration 250-500 ppm (TR-50)
• Contact period minimum 1 hour
• Food empty, let it dry or rinse if still wet
• Non-food empty, let it dry, do not rinse

12
Applications

• Storage tank disinfection
• Method 2 sprinkle tank with solution
• First clean and rinse with water (if necessary)
• Concentration 1 (TR-50)
• Contact period min. 15 min.
• Food let it dry or rinse if still wet
• Non-food let it dry, do not rinse

13
Applications

• Process water
• Bottle rinsing (standdisinfection)
• Concentration 60-200 ppm (TR-50)
• Method rinsing
• Contact period minimum 1 min.
• Food/non-food let it drip out, do not rinse

14
Applications

• Drinking water
• Concentration 5-20 ppm (TR-50)
• Method dosage
• Contact period continuous
• Maximum 20 ppm

15
Fields of application

• Huwa-San TR-50
• food processing
• Dairy industry
• Beverage industry breweries
• Drinking water treatment
• Medical sector nursing institutes
• Agriculture
• Pharmaceutical industry cosmetics
• Stock-breeding/meat processing
• Airconditioning cooling towers

• Huwa-San TR-5
• Restaurants hotels schools
• Swimming pools (surface)
• SPAs saunas (surface)
• Household leasure accomodation

16
Comparison

• Chlorine Aldehydes Quat. Amm. Huwa-San
• Properties
• Odour irritating irritating (slightly)
  irritating odourless
• Foam no foam no foam foam no foam
• Greasy not not yes not
• Application
• Rinsing after use yes yes yes food
  dry/rinse
• non-food dry/no rinsing
• Risks for user
• Byproducts chlorine gas(1) chloro- no no
• org chl comp(2) methylether(3)
• Hazard (1) toxic (3) toxic no sign.
  risks no sign. risks
• (2) irritating
• Biodegradability not not not biodegrada
  ble
• biodegradable biodegradable biodegrad
  able

17
Effectiveness

• Bacteria (grampos gramneg)
• Pseudomonas aeruginosa, Escherichia coli,
  Staphylococcus aereus, Enterococcus faecium,
• Mycobacterium smegmatis
• Spores
• Bacillus subtilus, Bacillus cereus, Clostridium
  sporogenes
• Fungi
• Absidia corymbifera, Cladosporium
  cladosporioides, Candica albicans, Penicillium
  verrucosum
• Huwa-San acts as an algicide and amoebicide!
• Huwa-San is extremely effective in removing
  biofilm and against legionella!

18
Advantages of HUWA-SAN

• Highly effective even in low concentrations.
• Effective in a wide range of temperatures up to
  the boiling point.
• Odourless
• Produces no foam
• Biodegradable (decomposes into water and oxygen)
• Non-toxic.

19
Measuring monitoring

• Measuring instruments
• Spectrophotometer Test strips
• photometric measurement range 0 -200 ppm
• range 0 - 150 ppm accuracy 10 ppm
  (indicative)
• accuracy 1 ppm
• Measuring and monitoring instrument
• Automatic dosage and measuring instrument to
  monitor the Huwa-San concentration (process and
  drinking water)
• photometric measurement
• range 0 - 100 ppm
• accuracy 1 ppm

20
Measuring monitoring

• Measuring instruments
• Spectrophotometer
• photometric measurement
• range 0 - 150 ppm
• accuracy 1 ppm
• Test strips
• range 0 -200 ppm
• accuracy 10 ppm (indicative)