Chlorine dioxide at your convenience. By Ralph Berdin, Brenntag Nordic February 2016

Transcription

1 Chlorine dioxide at your convenience By Ralph Berdin, Brenntag Nordic February 2016

2 CHLORINE DIOXIDE Properties Molecular formula: ClO 2 Yellowish, volatile gas at room temperature Chlorine type odour Highly soluble, remains in the water a true, dissolved gas Inorganic free radical in oxidation state +4 Inactivation by electron exchange in lieu of chlorine atom exchange Favourable environmental footprint (green chemistry) Excellent antimicrobial properties over a wide ph range (2-10) Used for potable water treatment since 1944; commonly employed in many other industries EU, USEPA approved, listed in WHO Drinking Water Quality Guidelines Sjef Swinkels Brenntag Holding GmbH 3/4/2016 2

3 CHLORINE DIOXIDE Benefits Sidelining many of the drawbacks and limitations known from chlorine Broad spectrum antimicrobial efficacy; germicide, virucide, fungicide, sporicide, algaecide, slimicide Unique inactivation mechanism; oxidation of genetic machinery, no known immunity building by microorganisms Powerful oxidising agent; more than twice the oxidative capacity of chlorine, but has lower oxidation strength Fast acting, selective oxidation chemistry Oxidises without chlorinating, no (eco)toxic or carcinogenic halogenated disinfection by-products (THMs, HAAs, AOX) Residual biocidal activity Minimises corrosion to processing equipment, tanks and lines Improved aesthetics (taste and odour control) Removes biofilm from water distribution systems Sjef Swinkels Brenntag Holding GmbH 3/4/2016 3

4 BIOFILM Chlorine dioxide mechanism against biofilm Effectiveness Chlorine dioxide diffuses through the protective layer and inactivates the pathogens from the inside out Chlorine dioxide inactivates bacteria: ClO 2 + bacteria ClO 2 - Acid producing bacteria in biofilm convert part of the chlorite back to chlorine dioxide: ClO acid ClO 2 Gelatinous mass production stops Dead biofilm is released and stripped from the surface Sjef Swinkels Brenntag Holding GmbH 3/4/2016 4

5 CHLORINE DIOXIDE Limitations of conventional methods What have you heard about chlorine dioxide? Chlorine dioxide is not stable, long term storable nor transportable Dangerous feed stock chemicals Explosion risk at elevated concentrations and temperatures Impurities and by-products Taste and odour problems Corrosive (275% HCl excess; acidification and chlorides) Requires capex Generation process is complex, safety measures, staff training, servicing and maintenance Not suitable for small applications Sjef Swinkels Brenntag Holding GmbH 3/4/2016 5

6 CLORIOUS2 Brenntag s chlorine dioxide program With Clorious2, Brenntag is committed to deliver its clients the power and versatility of chlorine dioxide in sanitation, oxidation and disinfection with enhanced safety, reliability and ease of use. By overcoming the limitations and drawbacks of conventional methods By improving ease of use, handling and operation By maximising safety By enhancing quality By increasing access to chlorine dioxide for a wider public By discovering and developing new applications Sjef Swinkels Brenntag Holding GmbH Confidential 3/4/2016 6

7 PACKAGING Dedicated drums Sealed drums (208 kg net) Fluorinated HDPE TÜV tested, BAM approved Integrated extractor Sjef Swinkels Brenntag Holding GmbH 3/4/2016 7

8 PACKAGING Dedicated cans Sealed cans (28 kg net) Metal with fluorinated HDPE liner TÜV tested, BAM approved Integrated extractor Sjef Swinkels Brenntag Holding GmbH 3/4/2016 8

9 DISPENSING CDS TriSure Ensures dry coupling and decoupling No liquid or vapour release No exposure to the chemical for operators Maximises work place safety Materials compatible with chlorine dioxide Available in both pack sizes Sjef Swinkels Brenntag Holding GmbH 3/4/2016 9

10 CLORIOUS2 The ultimate chlorine dioxide delivery system Transportable, ready-to-use chlorine dioxide solution No on site chemical mixing, no generator, no handling High purity, concentrated chlorine dioxide in aqueous solution (approx. 0.6%) Long term stable and replicable High efficiency, almost 100% conversion of chlorite into chlorine dioxide Patented chemistry based on oxidation of chlorite; no acidification or chlorination No flavour taint at concentrations < 0.5 ppm chlorine dioxide Closed system, no chemical exposure or odour No flavour taint Safe to use, easy to apply Safe, simple, pure Sjef Swinkels Brenntag Holding GmbH 3/4/

11 REGULATIONS Overview of applicable regulations and standards REACH: pre-registered under No Biocidal Products Regulation: Chlorine dioxide not added to Union list yet After inclusion in Union list: 24 months to submit a dossier for product authorisation Inclusion in Union list not expected before 2017 Transitional regimes vary per EU Member State Precursors listed in EN and in accordance with EN 938 and EN Bactericidal in compliance with EN 1276 Yeasticidal in compliance with EN 1650 Sjef Swinkels Brenntag Holding GmbH 3/4/

12 Thank you! For more information please contact: Ralph Berdin Brenntag Nordic AB Koksgatan 18 P.O Box S Malmö Sweden Phone: Mobile: Please be informed that this presentation contains confidential information. The presentation shall be kept confidential and shall not be distributed without prior written permission of Brenntag Holding GmbH. Sjef Swinkels Brenntag Holding GmbH 3/4/