Impregnate Technology Platform

Transcription

1 Impregnate Technology Platform carrier media Chemistry A Chemistry B Desired absorption or oxidation Mixing Activation Controlled reaction / release

2 Chlorine Dioxide Formula - ClO 2 CASRN Mol. Wt Highly Soluble in Water (>Chlorine) Stable Free Radical Strong oxidizer and biocide Works over broad ph range, 2-10 Does not react with ammonia Effective against biofilms Does not substitute onto organics Highly soluble in water Cannot be Shipped - Made on site

3 ClO2 Chemistry Sodium Chlorite - NaClO 2 - Acids +/or Reducing Species - Chlorine - Fast Kinetics - HCl, H 2 SO 4, Citric, Acetic, etc. - Example 4ClO H + ---> 2ClO 2 + ClO 3- + Cl - + 2H + + H 2 O

4 Traditional ClO2 Technologies

5 ICA ClO2 Technology Z-Series Solids - mg- kg/day - Controlled Activation - Efficient Chemistry - Easy to use - Safe - Solutions, Gas, Powders

6 250 Effect of Activator -Z : NaClO 2 -Z Ratio on ClO 2 generation at 79F Micromols ClO2 per gm Z-material Sample 1 Sample 2 Sample 3 Sample 4 Ratio Time, hr

7 ClO2 Solution Delivery System

8 ClO2 Gas Delivery System

9 Data Collection Programs Program Produce Water Poultry & Meat Horticulture Agriculture Indoor Air Quality Pest Management Bio/Chem Threat Study Focus Food Safety & Shelf Life Disinfection & Oxidation Food Safety & Animal Health Shelf Life & Oxidation Food Safety & Yields Odor Control & Mold Mosquitoes, Ticks, Fleas Anthrax, Virus ** Government, Universities, Customers, and Partners

10 ClO2 for Drinking Water Advantages* Lowers halogenated DPDs Improved taste/odor Improved CT over broader ph range Better Giardia/Crypto control Historical Disadvantages* Specialized Equipment Chemical Handling/Availability Chemical Efficiency More Skilled Operators Needed *Source: ClO2 Handbook ICA technology overcomes the major disadvantages of ClO2 Generation for small water systems

11 100 Drinking Water Disinfection: 10 minute ClO 2 Exposure 80 % Kill E-coli Cholera ClO2 Solution Conc. (ppm)

12 ClO2 for Industrial Water Treatment Chlorine dioxide is used for disinfection and oxidation in industrial, food, and point of use water applications Major Applications: Cooling Towers Rinses for raw ag. Products Flume waters disinfection Waste Water disinfection Drip Irrigation Hospital Water Hotel Water Industrial waste water for phenol, cyanide destruction

13 ClO2 Gas Treatments ClO2 solution is great but Gas has exciting new possibilities ClO2 gas has long been know as a sanitizer/disinfectant/sterilant but has had limited use due to a lack of easy generation technology ClO2 gas forms a rapid equilibrium with water - brings ClO2 to the problem ICA technology = practical, simple and predictability = $$$

14 ClO2 Gas Treatments of Tomatoes

15 ClO2 Gas Treatment of Tomatoes for Soft Rot 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 40.0% 88.0% 100.0% 30.0% 20.0% 10.0% 0.0% 0.0% 0.0% 24.0% Chamber 1 Chamber 2 Ch 2 in bag 100 ppm HOCl Untreated Control 0.75ppm ClO2(g)

16 ClO2 Gas Treatments of Raw Ag.

17 ClO2 Gas Sanitizing of Food Tanks

18 ClO2 Gas Treatment of 800, 1200 & 1600 Gallon Tanks Volume of Tank (L) Conditions Ctrl Total ClO 2 over time (mg) Average ClO2 conc. (mg/l) Exposure time (h) Blade spin rate (RPM) Fan used (Y/N?) Leakage of ClO 2 (Y/N?) Temperature ( 0 F) Relative humidity (%) Bacteria inoculum Yeast inoculum N N N Y N N N N Y N N N Log( No. of Survivors ) Log reduction Lb4005 Ca30 Lb4005 Ca30 Top <1.3 < <1.3 <1.3 <1.3 Btm <1.3 < <1.3 <1.3 <1.3 Top > Btm > <1.3 Top >5.2 > >5.0 >5.2 >5.0 Btm >5.2 > >5.0 >5.2 >5.0 Top < Btm < >5.1

19 Powder - ClO2 Gas Release Control Treatment with ClO 2 -releasing powder Sterilization determination Long pile carpet A C E Autoclaved Spore Strip Spore strips ClO 2 -treated spore strip Short pile carpet B D F Control Fig 4. Exposure of carpet with Bacillus species endospores to ClO 2 -releasing powder Sections of carpet (232.3 cm 2, duplicates) with both long (10 mm, A & C) and short pile (4 mm, B & D) were tested with sterility strips with Bacillus subtilis and B. stearothermophilus (2x10 6 spores, each was cut into four equal lengths spores) embedded on edge into the pile of the carpets. The controlled-release ClO 2 powder was applied to both pre-moistened (10 ml sterile, deionized water) and dry carpet sections both at 7.8 mg/cm 2 or 38.8 mg/cm 2. Spore strips were recovered from the carpet after 2 h and 24 h and cultured in Tryptic Soy broth (TSB) fortified with 0.3% sodium thiosulfate, and were monitored visually for growth in comparison with control strips in the same media. Bacillus spp. were recovered from only 2 of 8 strips from moistened carpets and none from dry carpets after 24 h at the 38.8 mg/cm 2 concentration.

20 ClO2 Gas Hospitality

21 Chlorine Dioxide for Medical/Biothreat Advantages: - low concentration sterlilant (< 25 mg/l) - exhaust gas easy to destroy - low temperature (25-30C) - rapid cycle Limitations: - limited penetrability - gas must be generated on site - pre-humidification - corrosive to some metals

22 Medical Sterilization

23 ClO2 ATEK Concept Simple, shelf-stable, first-line responder kit containing ClO2 gas, solution and powder generation materials Puts established best available chemical in the field where there is a gap in response capability Products put ClO2 close to problem statement = faster response, greater efficacy, minimizes collateral damage, and garners more control over personnel exposure issues Complements large scale generator approach Capitalizes on government investment in ICA TriNova Products

24 Equipment Decon

25 ClO 2 in Food Preservation Patents cover the combined generation of CO2 and ClO2 Technology is scalable - package applications to ship board containers ClO2 Sachet technology provides more design flexibility because of impregnation and chemistry choice Safe and effective treatment of fruits and vegetables