El Paso Full Recovery Desalination Project - Craig Pedersen and Paul Wallace
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Transcript of El Paso Full Recovery Desalination Project - Craig Pedersen and Paul Wallace
Extracting Minerals From Water
UPDATE ON THE EL PASO FULL RECOVERY DESALINATION PLANT
March 2017
INTRODUCTION TO EWM
Enviro Water Minerals Company (EWM) has created a revolutionary desalination solution that extracts the dissolved solids contained in a variety of salty water sources for beneficial use:
–Waste brine contains marketable minerals, which EWM extracts to sell
– Full resource recovery (what we call Full Recovery Desalination)
Coupling of revenue from mineral sales and sale of potable water makes business model feasible
Intellectual Property – Patent portfolio of 12 process patents
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REINVENTING DESALINATION
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Example Sources Example Production
Full Recovery Desalination
All contaminants separated into mineral products (zero discharge)
Water yield = ~99%
Is often cheapest new water supply option available
Seawater
Produced Water
Brackish Water Potable Water
Milk of Magnesia
High-Purity Salt
Agricultural Gypsum Caustic Solution
Potash Liquid Fertilizer
Bromide Rich Brine
EPW BACKGROUND
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El Paso’s Kay Bailey Hutchison desalination plant
✓ El Paso is the site of the world's largest inland desalination plant.
✓ A joint project of El Paso Water and Ft. Bliss, El Paso's desalination facilities produces 27.5 (MGD)
✓ Kay Bailey Hutchison plant began operations in 2007
✓ Current waste brine disposal is deep well injection – 22 miles away
EWM COMMERCIALIZATION
■EWM successfully competed for the right and then completed piloting at El Paso and at equipment testing facilities
■EWM successfully completed pilot for SAWS brine■Have had commercial discussions with several additional
interested communities. ■We are optimistic that we can help many other communities and
would love to engage in conversations with those who believe our solution could help them.
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EWM is building its first full-scale plant in El Paso, Texas
FIRST SITE: EL PASO
Benefits to El Paso include: Enhanced yield from existing
desalinization plant (effectively 99%)
Avoided concentrate disposal issues
Preservation of brackish water aquifer life
EWM’s first project in El Paso will commence commercial operations in Spring 2017
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EWM AND EPWU
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El Paso Water Utilities
KBH Desal Plant
Enviro Water Minerals
Potable Quality Water
Brackish Well Water
Concentrate
Chlorine
Disinfection, Blending and DistributionPotable Water to El Paso
99% well water recoverywith full brine flow to EWM
Waste Brine toDisposal Wells
Potable Water
BWRO DesalinationBrackish Wells
BWRO Brine 13,000 mg/l dissolved salts
Air+CO2
Air
Desalinated Water93% Recovery (Basis Brine Feed)
700 mg/l dissolved salts
Magnesium Chloride,Calcium Chloride BrineTo Mineral Production
Calcium Sulfate BrineTo Mineral Production
Sodium Chloride Brine To Mineral Production
HCl Caustic
SoftenerHeater
Hot Water100 F
SoftSulfate andBicarbonateFree Brine
Low HardnessSulfate FreeBrine
Nano-Filtration Electrodialysis
* NSF 60 certified acid provides additional product water and silica desaturation
Dilute Acid* from Mineral Production
80% recovery90% recovery
EXISTING EPWU KAY BAILEY HUTCHISON DESALINATION PLANT
ENVIRO WATER MINERALS EL PASO PLANT
85% recovery
EWM El Paso Plant
14% recovery
Degasifier125% flow
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EWM PRODUCTION
Produce ~2.1 mgd potable-quality water from 1 mgd of raw brackish water + 1.25 mgd concentrate
Influent raw brackish water TDS: 2,500 mg/L Influent concentrate TDS: 13,000 mg/L
Products: Potable-Quality Water (TDS<700 mg/L) Caustic Soda (50% Concentration) Hydrochloric Acid (35% Concentration) Gypsum (high purity, 100% Soluble) Magnesium Hydroxide (98% Purity, 56% Solid)
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CONSTRUCTION UPDATE
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Broke Ground January 2016 Commence commercial operations: Spring 2017
SITE PICS: NANO FILTRATION / RO
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SITE PICS: SETTLING
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SITE PICS: ELECTRODIALYSIS
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SITE PICS: ION EXCHANGE
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OUTSIDE EQUIPMENT
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6.5 MW Natural Gas CHP Degassifier
Cooling Towers Evaporator
DESALINATION REINVENTED
All contaminants are separated into mineral products (zero discharge)
Water yield = ~99% Preserves finite aquifer resources Avoids disposal issues Often is cheapest new water supply
option available Low CO2 footprint 12 Patents / patents pending
EWM’s Full Recovery Desalination makes beneficial use of contaminants, eliminating costly and environmentally hazardous disposal issue
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2017Innovative
Water Supply Award
Winner of the Texas Water Development Board’s
2017 Innovative Water Supply Award for the Technology Category