Dow Inc. · NYSE:DOW
Dow — Technical Presentation (October 2005)
22 slides from Dow's technical presentation, Oct 3, 2005
Slide 1: ADSORBSIA Arsenic Removal Media – Properties and Performance
ADSORBSIA Arsenic Removal Media ADSORBSIATM Arsenic Removal Media – Properties and Performance Alan Greenberg Sr. Development Marketing Manager Dow Liquid Separations 10/03/2005
Slide 2: The Challenge
ADSORBSIA Arsenic Removal Media The Challenge • EPA Lowers the Arsenic Maximum Contaminant Level (MCL) from 50 ppb to 10 ppb • Announced January 2001 • Goes into effect January 2006 • Affects Group A community water systems (>25 people served) • Affects Non-transient, non-community public water syst
Slide 3: EPA Health Effects Statement
ADSORBSIA Arsenic Removal Media EPA Health Effects Statement “Some people who drink water that contains arsenic in excess of the MCL over many years could experience skin damage or problems with their circulatory system, and may have an increased risk of getting cancer.” Table I-1. CCR Informational
Slide 4: Treatment Options
ADSORBSIA Arsenic Removal Media Treatment Options • Large Municipal systems can cost effectively use conventional processes such as enhanced coagulation, direct filtration, coagulation assisted microfiltration, etc. • Small Municipalities (<3300 people) can’t cost effectively use conventional coagul
Slide 5: Arsenic Removal Costs
ADSORBSIA Arsenic Removal Media Arsenic Removal Costs Arsenic Removal Costs* Costs rise drastically for smaller systems using Population served > 100000 $0.01 conventional technology 501- 99999 $0.41 < 500 $1.47 $0.00 $0.20 $0.40 $0.60 $0.80 $1.00 $1.20 $1.40 $1.60 Non-Compliant Water Systems $ per
Slide 6: Why use ADSORBSIA media
ADSORBSIA Arsenic Removal Media Why use ADSORBSIA media Dow technology applied to develop a formulation that provides physical strength to compliment the adsorptive capacity and fast kinetics of Titanium Oxide High capacity and fast kinetics makes ADSORBSIA media well suited for single use in Munici
Slide 7: ADSORBSIA GTO TiO Media
ADSORBSIA Arsenic Removal Media ADSORBSIA GTO TiO Media Physical Properties: Product form Dry Granule Moisture Content < 15% Particle Size Range 10-60 US mesh Bulk Density 44 lbs/ft3 7
Slide 8: The ADSORBSIA GTO Advantage
ADSORBSIA Arsenic Removal Media The ADSORBSIA GTO Advantage • Effective for both As(III) and As(V) • Highest effective arsenic capacity available • Fast kinetics allow for flexible system design – Smaller footprint – Lower capital costs • Easy to use – No pre-treatment necessary – No arsenic contain
Slide 9: More Advantages
ADSORBSIA Arsenic Removal Media More Advantages • Effective removal of Arsenic over a wide range of water conditions • Best performing media in high silica and/or high phosphate waters • Stable performance during pH fluctuations • Dry, White granule that is easily installed and maintained 9
Slide 10: More Advantages
ADSORBSIA Arsenic Removal Media More Advantages • NSF/ANSI 61 certified (without limitations) • Passes extractive tests for: – TCLP (Toxic chemical leaching procedure) – CA WET (California Waste Extraction Test) – CA STCL (Solute Threshold Concentration Limit) • Disposable as non-hazardous waste. –
Slide 11: NSF Standard Challenge Water for Arsenic
ADSORBSIA Arsenic Removal Media NSF Standard 53 Challenge Water for Arsenic Data on the following slides was generated using the challenge water described in ANSI/NSF standard 53. Mg 12 ppm SiO2 20 ppm SO4 50 ppm PO4 0.04 ppm NO3 2 ppm Ca 40 ppm F 1 ppm Challenge Water was designated by NSF to repre
Slide 12: Fast Kinetics
ADSORBSIA Arsenic Removal Media Fast Kinetics Arsenic Breakthrough Curves NSF Challenge Water (300 ppb As(V), pH =8.5, 30 se c EBCT) 20-30 M esh 40 Competitive Ferric Arsenic Effluent Concentration 30 Oxide Dow’s proprietary granulation process ADSORBSIA GTO combined with nanocrystalline (ppb) Titan
Slide 13: Highest Effective Arsenic Capacity
ADSORBSIA Arsenic Removal Media Highest Effective Arsenic Capacity Arsenic Breakthrough Curves NSF Challenge Water (50 ppb As(V), pH =8.5, 30 sec EBCT) 40 Competitive Ferric Oxide Media Arsenic Effluent Concentration 30 Competitive (ppb) 20 Ferric Hydroxide Media ADSORBSIA GTO Titanium Based 10 Adso
Slide 14: Highest Effective Arsenic Capacity
ADSORBSIA Arsenic Removal Media Highest Effective Arsenic Capacity Arsenic Breakthrough Curves NSF Challenge Water (300 ppb As(V), pH =7.5, 180 sec EBCT) Low Silica (10ppm) 40 Arsenic Effluent Concentration, ppb Competitive Competitive Activated Alumina Ferric Hydroxide Media 30 Media Competitive AD
Slide 15: Fast Kinetics
ADSORBSIA Arsenic Removal Media Fast Kinetics Arsenic Breakthrough Curves 40 NSF 53 Challenge Water (300 ppb As(V), pH =7.5) 30 second EBCT Arsenic Effluent Concentration 30 2 minutes EBCT (ppb) 20 3 minutes EBCT 10 0 0 2,000 4,000 6,000 8,000 10,000 12,000 Bed Volumes Treated 15
Slide 16: Fast Kinetics: Impact of Particle Size
ADSORBSIA Arsenic Removal Media Fast Kinetics Arsenic Breakthrough Curves NSFChallenge Water (300 ppb As(V), pH=8.5, 120 sec EBCT) Impact of Particle Size 40 ADSORBSIA GTO 20-30 Mesh ADSORSIA GTO 16-60 Mesh 30 Arsenic Effluent Concentration ADSORSIA GTO 40-60 Mesh (ppb) 20 10 0 0 2,000 4,000 6,000 8
Slide 17: Best Over Wide Range of Water Conditions
ADSORBSIA Arsenic Removal Media Best Over Wide Range of Water Conditions Arsenic Breakthrough Curves: NSF Challenge Water (50 ppb, pH =6.5, 120 s EBCT) 40 ADSORBSIA™ GTO media FeO media influent pH change to 6.9 30 Arsenic Effluent Concentration, ppb influent pH change to 7.2 20 10 note: influent pH
Slide 18: Best Over Wide Range of Water Conditions
ADSORBSIA Arsenic Removal Media Best Over Wide Range of Water Conditions ADSORBSIA GTO media Performance at various PH NSF 53 Challenge Water (50 ppb As(V), 30 sec EBCT) 40 feed pH 7.5 (modeled) 30 Arsenic Effluent Concentration, ppb 20 feed pH 8.5 10 feed pH 6.5 0 0 10,000 20,000 30,000 40,000 50,0
Slide 19: Impact of Silica
ADSORBSIA Arsenic Removal Media Best Over Wide Range of Water Conditions Impact of Silica NSF Challenge Water (300 ppb As(V), pH =7.5, 180 sec EBCT) 40 ADSORBSIA GTO Media 40 ppm silica ADSORBSIA GTO media 10 ppm silica 30 Competitive Ferric Oxide Media ADSORBSIA GTO media Arsenic Effluent 40 ppm si
Slide 20: EPA Licking River Data
ADSORBSIA Arsenic Removal Media EPA Licking River Data EPA Licking River Study Arsenic V removal 40.0 35.0 30.0 Arsenic Conc (ppb 25.0 20.0 15.0 10.0 5.0 0.0 0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 Be d Volume s Arsenic V after pre-colum n ADSORBSIA GTO m edia Com petitive m
Slide 21: Competing Ion Effects
ADSORBSIA Arsenic Removal Media Best Over Wide Range of Water Conditions Competing Ion Effects – Sulfate • No impact on performance – Phosphate • Appears to have little or no impact on capacity – Vanadium • High capacity for Vanadium • Low levels (<10ppb) do not appear to have a significant impact o
Slide 22: Logistics
ADSORBSIA Arsenic Removal Media Logistics • ADSORBSIA GTO arsenic removal media is available in several package sizes – Samples: 1L bottle – 1 cubic foot cardboard pack – 5 cubic foot fiber pack • 30-60 day typical lead time for quantities <200 ft3 • 60-90 day typical lead time for quantities >200ft