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