RESP ND GROW QUALITY DELIVER. Engineered UV Treatment Systems INNOVATE. Shimon Peretz March 2017 GLOBAL

Transcription

1 GROW Engineered UV Treatment Systems Shimon Peretz March 2017 QUALITY DELIVER RESP ND INNOVATE GLOBAL

2 Presentation Outline What is Disinfection? UV vs. Chlorination What is UV disinfection? Design Requirements UV spectrum (LP & MP) Low Pressure UV vs. Medium Pressure UV Conventional System s configuration Effect of water flow on disinfection level Conventional Monitoring & Control Lamp intensity sensor

3 What is Disinfection? Disinfection Physical Heating (Boiling, Pasteurization) Membrane Filtration Radiation Gamma rays, X-rays UV Radiation Chemical Chlorine Chlorine Dioxide Chloramine Ozone Bromine Iodine Silver

4 UV vs. Chlorination UV Very effective against a variety of pathogens especially protozoa which are very resistant No safety problems associated with shipping and handling chemicals Does not generate dangerous by-products No residual effect Not corrosive Higher capital and operational costs (depends on sizing) Not affected by the water chemistry Chlorination Not effective against protozoa Depending on the type of chlorination used, safety is an issue Can create dangerous disinfection by-products such as trihalomethanes Has a residual effect Very corrosive Low capital and operational costs Affected by the water chemistry ph and chlorine demand (depending on organic content and ammonia content)

5 UV vs. Chlorination- Continue

6 What is UV disinfection? Exposing contaminated water to radiation from UV light. A technology that has been used since The UV light penetrates the microorganisms cell walls and disrupts the cell s genetic material, making reproduction Impossible. Photons of UV light absorbed by molecules such as chloramines or NDMA lead to chemical change, resulting in their destruction.

7 Design Requirements Flow rate Water Quality/transmittance (UVT) Required Disinfection (dose/log reduction) Minimum required parameters UV Dose is the amount of UV light energy that the microorganism was exposed to, crossing the reactor. (The UV Dose is measured in mj/cm2) UVT is the % amount of light that passes through 1cm of water 1. Goal of the process? (Disinfection? if yes, to which bacteriological species we should refer to?) 2. Layout of the production process 3. Regulatory authority process demand? (such as EPA) 4. Piping diameter 5. Pressure in piping? 6. Water analysis (such as Turbidity, Hardness, PH, TSS, Metal concentrations etc.) 7. Redundancy?

8 Design Requirements- UV Transmittance High Transmittance Low Transmittance

9 Design Requirements- UV Transmittance- Continue Typical UV Transmittance Values Water Source Transmittance ( )% Ultrapure Water 100% Distilled Water 98% Drinking Water 85-95% Membrane (WW) 70-80% Secondary Filtered 65-70% Secondary Unfiltered 50-65% Meat Brine, Soft Drinks 0%

10 Spectral Emittance (rel( What wavelengths comprise the UV spectrum? Medium Pressure Lamp 8 Low Pressure Lamp Name (25m nm) Abbreviation Wavelength range in nanometers 4 Ultraviolet A, long wave UVA 400 nm 320 nm Ultraviolet B, Medium wave UVB 320 nm 280 nm 0 Ultraviolet C, Short wave UVC 280 nm 100 nm wavelength / nm

11 When referring to UV disinfection it is correct to use microbial inactivation rather than microbial kill because the microbes become damaged, not killed. In some cases reactivation will occur DNA repair can occur in the dark and in the light. The type of repair depends on the type of UV irradiation used

12 What wavelengths comprise the UV spectrum?- Continue UV light inactivates cells by damaging their DNA Low pressure (LP) UV lamps contain mercury gas at a low pressure (<10 Torr), and when excited by an electrical discharge emit light at 254nm Medium Pressure (MP) UV lamps contain mercury at much higher pressures (~1000 Torr). The UV is of higher intensity and use entire germicidal spectrum ( nm)

13 Effect of fluid temperature on the UV lamp performance

14 Low Pressure UV vs. Medium Pressure UV Low Pressure UV Narrower germicidal effect Medium Pressure UV Wide germicidal effect Cannot practically generate very high doses requires a vast number of lamps Can reach high doses, using less lamps Lower electricity consumption per lamp Higher electricity consumption per lamp High maintenance due to multiple lamps Easier maintenance

15 Medium Pressure Lamps are Better Uses entire germicidal spectrum for much better efficiency ( nm) Totally inactivates cells by damaging their repair mechanism Creates Thymine Dimers to inhibit DNA replication Adenoviruses are 2-3 times more sensitive to Medium Pressure UV

16 Conventional System s configuration U-type - B120 WEDECO N-type - LD320 by Hanovia

17 Conventional System s configuration- Continue L-type - UVSwift-B06 by Trojan

18 Conventional System s configuration- Continue High velocity AND low UV-intensity Each lamp treats a FRACTION of the crossing water volume Tired lamp escape routes

19 Effect of water flow on disinfection level Flow parallel to lamps

20 Effect of water flow on disinfection level- Continue Flow perpendicular to lamps

21 Conventional Monitoring & Control Lamp intensity sensor Measuring UV light through water (light, water and sleeve fouling) Conventional UV

22 The only system validated by using the real virus to meet U.S. EPA protocols for full virus protection

23 Fiber-Optic Principles to Recycle UV Photons: Stainless Air Block Quartz Tube HOD Conventional HOD Technology: Over 60 Protected Patents

24 Disinfection & Dechlorination Protects RO Reverse Osmosis Atlantium Hydro-Optic Dual Effect Activated Atlantium Carbon Hydro-Optic Sodium UV Bisulfite Maintenance intensive Very cleanchemical injection Microbe-nursery Low-maintenance Chemicals removal 1. Dechlorination RO Protection 2. Powerful Disinfection Reduced Biofouling

25 Chemical-Free Disinfection Process water disinfection Firewall replacing chlorine Primary product water disinfection Pasteurized equivalent water Validated to highest regulatory standards including EPA and FDA Accepted by regulators as an alternative to chlorine for primary water disinfection Easily inactivates microorganisms, including chlorine-resistant pathogens, pseudomonas, cryptosporidium and giardia Inactivates heat-resistant spores too

26 Macro & Micro Fouling Aquatic Invasive Species Bio-Fouling Algae Bio-Fouling Iron Bacteria Fouling

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28 July 2016 The Lake County Health District confirms one person is dead as part of 11 cases linked to an outbreak of Legionnaires' disease in Lake County. According to Lake County Deputy Health Commissioner Ron Graham, the fatality occurred in July. The ten other people have now recovered. The bacteria that causes Legionnaires Disease was discovered in the cooling towers at Consolidated Precision Products on Lakeland Boulevard in Eastlake.

29 Why Atlantium? Highest Validation Approval Recycle UV Photons Market Leader with Proven Track Record The only system with two sensors per lamp- Real-time monitoring of all relevant factors Delivery of required Doze vs Average Doze Continuous real-time documentation Modularity Quick & Easy Lamp Replacement

30 Thank You! Shimon Peretz Sales & BD Director Atlantium Technologies Ltd. Har Tuv Industrial Park POB 11071, Israel Tel: Fax:

31 Atlantium Market Segments Bio-Pharma Heavy Industry Power Plants Aquaculture Food & Beverage Municipal Ballast 52

32 >2000 Systems >60 Countries

33 Coca Cola Corporate standard due to unmatched performance A strategic relationship with The Coca Cola Company The ONLY UV vendor officially authorized by TCCC Atlantium helped Coke change its spec to a dose of 120 mj /cm2 to enable real UV treatment- For Chlorine replacement Serving more then 300 sites globally

34 Fiber-Optic Principles to Recycle UV Photons: Stainless Air Block Quartz Tube HOD Conventional HOD Technology: Over 60 Protected Patents

35 Chemical-Free Disinfection Process water disinfection Firewall replacing chlorine Primary product water disinfection Pasteurized equivalent water Validated to highest regulatory standards including EPA and FDA Accepted by regulators as an alternative to chlorine for primary water disinfection Easily inactivates microorganisms, including chlorine-resistant pathogens, pseudomonas, cryptosporidium and giardia Inactivates heat-resistant spores too

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37 Disinfection & Dechlorination- UV RO system results Visual Differences- Sea water Desalination plant (1 month) With HOD-UV Without UV Surface analysis - Confocal laser microscopy w Atlantium w/o Atlantium EPS on membranes EPS with UV EPS w/o UV

38 Full Scale installations Macro & Micro Fouling Thermal RO biofouling LGE-KU Trimble County Location Ohio River in Trimble County Kentucky USA Thermal PP The plant does not use any chlorine due to complexity of removing it. The rapid biofouling build up is removed by frequent cleaning cycles and this reduces membrane life time. Atlantium Hydro-Optic UV is installed to prevent biofouling as an alternative to biocide usage. RZ Flow rate: 600gpm 136m³/h Mussels, algae, and Hydrozoha 59

39 Georgia Power Plant Bowen- USA Water source Surface water following pretreatment including active chlorine injection Flow rate 154m 3 /h Inlet free chlorine level up to 0.5ppm Required outlet free chlorine level undetectable ( 0.02ppm) Previous treatment SBS now Atlantium s UV

40 Georgia Power Plant Bowen- USA Project Summery At the conclusion of the evaluation period, results showed the HOD UV system to consistently meet or exceed treatment objectives. The HOD UV technology effectively removed free and total chlorine from boiler feed water to undetectable levels from levels above 0.7 mg/l at the inlet. Bacteria levels were also reduced to an average of 3.8 organisms per ml.

41 Case Study in the US

42 Lower Colorado River Glen Canyon (2017) Strainer basket from bearing cooling water supply of a turbine not protected by Atlantium Hoover Dam Davis Dam Strainer basket from bearing cooling water supply of a turbine protected by Atlantium Parker Dam

43 Impressive with 99% removal of mussels settlement,low maintenance and low energy Reclamation

44 Legionella Control