Ahlstrom Disruptor Nonwoven Filter Media

Transcription

1 Improving Health - Protecting the Environment Ahlstrom Disruptor Nonwoven Filter Media Legionella Reduction Updated September Ahlstrom Corporation

2 What is Ahlstrom Disruptor Technology? Welcome to this introduction to Ahlstrom Disruptor - a unique and broad spectrum water filtration technology! Series of 5 presentations: 1. Ahlstrom Disruptor - General information 2. Ahlstrom Disruptor - Legionella removal 3. Ahlstrom Disruptor - Powder activated carbon (PAC) 4. Ahlstrom Disruptor - Pathogen reduction 5. Ahlstrom Disruptor - Membrane biofouling

3 What is Legionella? Legionella bacteria are: A gram negative, rod-shaped bacteria with over 50 different species Between µm in width and 2 µm long Commonly found in aquatic and soil systems The cause of Legionnaires disease, a form of pneumonia Source: Legionella are present in: A broad range of building water systems and are transmitted through aerosolized water that is inhaled or aspirated into the lungs Source: Nano4health blogspot

4 Conditions that favor its growth Legionnaires disease is normally contracted by inhaling small droplets of water (aerosols) suspended in the air, which contain the bacteria. Certain conditions increase the risk from legionella: a) If the water temperature in all or some parts of the system is between C, it may promote growth of the bacteria b) When conditions create water droplets that can then be dispersed for inhalation c) Conditions where water is stored and/or recirculated may also promote growth d) When scale, rust, sludge, biofilm deposits are present to support bacterial growth

5 How can Legionella be removed? Copper- Silver ionization: In the UK, copper as a biocide is no longer allowed post January 2013 Chlorine: Need 2-4 ppm continuous residual chlorine. Additionally, for a chlorine shock, Legionella can survive up to 50 ppm chlorine concentration and still have a rapid recolonization/rebound. Thermal shock: Run 160º F - 170º F water for >30 min through the system Source: Penn State University, Department of Architecture Source:

6 Legionella Reduction Testing Ahlstrom Disruptor Media Legionella Single Layer Single Layer Double Layer Ahlstrom Lot description Percent Percent Percent Initial Reduction Reduction Reduction 4601 Lot: R8M 25 mm filter % % > % 4602 Lot: R4M 25 mm filter > % > % % 4603 Lot: R6M 25 mm filter % % % 9.6 x Lot: R12M 25 mm filter % > % % 4608 Lot: R4M (Silver) 25 mm filter > % > % > % 4609 Lot: R8M (Silver) 25 mm filter % > % > % Testing carried out at BCS Laboratories, Inc., Gainesville, FL Ahlstrom Disruptor media has been tested at an independent, third party lab, and found to effectively reduce Legionella in water. Grades used for testing are commercial products, non-laminated for ease of testing.

7 Legionella capacity testing Reduction efficiencies at the capacity of the filter media samples Samples were found to have % or better reduction of Legionella at the terminal sample points Testing carried out at BCS Laboratories, Inc., Gainesville, FL

8 Legionella capacity with addition of high flow media Use of Ahlstrom Disruptor High Flow (prefilter) media as a prefilter to standard Ahlstrom Disruptor media can increase the life of the media while still providing excellent reduction of Legionella Testing carried out at BCS Laboratories, Inc., Gainesville, FL

9 Controlling Legionella Temperature: Keep all cold water below 25º C (78ºF) and all hot water above 51º C (124º F) Chlorine: Must have continuous exposure, and bacteria can still be resistant Copper-Silver (Cu-Ag) ionization: (EPA and WHO recognized for Legionella control and prevention but not intended for cooling towers Chlorine dioxide: EPA approved as a primary potable water disinfectant Moist heat sterilization: Superheating to 140º F (60º C) and flushing is a nonchemical treatment that typically must be repeated every 3 5 weeks Ahlstrom Disruptor Media: Found to significantly reduce Legionella from water. Can be used in conjunction with other recognized treatment methods.

10 Applications Cooling towers Hot and cold water systems Ultrasonic humidifiers/foggers Misting devices used for humidifying vegetables, meat and other food products Spray humidifiers Air washers, wet scrubbers, particle and trivial gas scrubbers Water softeners Emergency showers, eyebaths and face wash fountains Sprinkler and hose reel systems Spa pools Whirlpool baths Horticultural misting systems Vehicle washers including automatic washers for cars, buses, lorries and railway rolling stock Powered dental equipment Fountains and decorative water features including those on display for sale Non-disposable nebulizers used for respiratory therapy Industrial effluent treatment plants Irrigation systems Fire, dust and odor suppression systems Paint spray preparation equipment Tunnel pasteurizers and similar equipment

11 Summary of Ahlstrom Disruptor removal capabilities Virus (Polio, Norovirus, Rotavirus, etc., etc.) Bacteria (E. coli, Legionella, Pseudomonas,, etc., etc.)* Cysts* Humic Acid Bromine (carbon) Chlorine* (carbon) Iodine (carbon) Lead 6.5 AND 8.5 ph* Ortho-phosphate PCBs, BPA Penicillin G,Flumenquine Polysaccharides Arsenic V 6.5 ph* Ferric Iron +++ Chromium VI Arsenic III 6.5 ph* Arsenic III 8.5 ph* Bromine (white) Ferrous Iron++ * Soluble silica Trihalomethanes (THM) Chloramine* VOC* Some Removal Arsenic V 8.5 ph* Bromate Manganese nitrate Mercury 6.5 ph* Mercury 8.5 ph* NDMA Sulfate Geosmin Minimal to No Removal Significant Removal All marked with *: NSF concentration standard followed

12 Ahlstrom Disruptor Safety

13 Meets NSF/ANSI Standards 42 and 61

14 Silver Antimicrobial: important to note It is important to note the distinction between nanosilver and the silver impregnate zeolite we use in Disruptor products Nanosilver is typically 25 nanometers in size and can freely move through the dermal layer and in between human cells The Agion silver impregnated zeolite we use has an average diameter of 2 micron (2000 nanometers) or approximately 100 times larger than nanosilver This difference in size eliminates the possibility of the Agion zeolite being considered to be nanoparticle. In addition, the Agion product contains the silver internal to the zeolite. Silver is not available in a free form. This means the silver contained within the zeolite can only be released in the presence of other ions, taking the place of the silver in the zeolite. This method of ion exchange provides for controlled delivery.

15 Fact Sheet from USAPHC

16 Thank you Questions and for more information, Please contact: Mr. Rod Komlenic or