subpage banner (Technology )

Patent-pending in the USA

AmpreyTM

Amprey’s electrochemical cell produces all chemistries that exist to neutralize acid and remove any dissolved metal

banner-AmpreyTM

Patented in the USA

MistyTM

Scrubs O2 gas for positive redox
Scrubs CO2 gas to neutralize pH

banner-MistyTM

Patented in the USA

MikroFormeTM

Micro-bubble flotation / gas contactor
Separates solids + gas transfer

banner-MikroFormeTM
Game-ChangingTechnology

Amprey (Iron)

Our Game-Changing Technology

 

What it does

blue-waterDroplets

Introduces Fe2+ coagulant

blue-waterDroplets

Creates reducing conditions

blue-waterDroplets

Raises pH

 

 

Learn more in our presentation

waterStrider's Electrifying Treatment Results

Can Remove Any Dissolved Metal from Water and Sulphate and Nitrate - some examples from mines:

 

 Contaminant  Permit Maxium
(parts per billion)		  Untreated Water
(parts per billion)		  After waterStrider Treatment
(parts per billion)		  % Removal
 Antimony 20  19.8  7  64.7
 Arsenic  50  4,010  17.8  99.6
 Cadmium  0.02  4  < 0.01  > 99.8
 Copper  7  5.3  1 81.1
 Lead  10 969 <1 > 99.9
Selenium  5 658 3.32 99.5
Zinc  30 549,000  < 20 > 99.9

Dewatered Solids are Stable and Non-Leachable

Major Benefit over Other Treatment Methods

 

 Metal Filter Cake RL
[mg/kg dry]

Filter Cake Strong Acid Leachable
[mg/kg dry]

  Leachable
[mg/L]		 BC Hazardous Waste Legislation & Regulations 
Leachate Quality Standards Concentration in Waste Extract [mg/L]
 Arsenic 0.3 28.65 <0.010 2.5
Barium 1 338.5 <1.0 100
Boron 2 5.6 <0.50 500
Cadmium 0.04 26.3 <0.001 0.5
Chromium 1 33.35 <0.050 5.0
Copper 0.4 91 <0.10 100
Lead 0.2 27.35 <0.010 5.0
Mercury 0.04 0.05 <0.002 0.1
Nickel 0.6 69.5 <0.10 500
Selenium 0.2 <0.20 <0.020 1.0
Silver 0.1 0.595 <0.002 5.0
Uranium 0.05 0.293 <0.020 10
Zinc 2 4,005 <0.50 500

E2 =

Economic & Environmental Benefits of waterStrider System

EconomicImprovements

Economic Improvements

  • CapEx and OpEx significantly lower
  • Year-round operations in any temperature
  • Automated, mechanically simple and low maintenance - benefits remote mines
  • Potential decrease in bonding costs with lower operating costs.
  • Obstacles reduced to obtain mine permits when other systems less capable
  • Very small footprint, modular and transportable with negligible civil works
EnvironmentalImpacts

Environmental Impacts

  • Removes all toxic dissolved metals and other toxic contaminants
  • Meets all regulatory requirements
  • Produces minimal, benign waste by-product that does not dissolve – can be disposed like regular industrial waste.
  • Major reductions in GHG emissions
  • Enables economic recovery of dissolved lithium

waterStrider’s Spectacular Results at 3 Mines
Totaling $7 Billion of Treatment Costs

NWT, Canada

Giant Mine

 

  • Massive volumes: arsenic, acid
  • waterStrider beats all other systems - removes 99.6% arsenic
  • Remediation costs estimated $4.4 billion
  • Existing iron + lime water treatment does not work when freezing (~8 months per year)
GiantMine
FaroMine

Yukon, Canada

Faro Mine

 

  • Massive volumes: zinc, lead, acid
  • waterStrider beats all other systems - removes 99.9% zinc, 99.9% lead
  • Remediation costs estimated $2 billion
  • Existing lime water treatment does not work when freezing (~8 months per year)

BC, Canada

An Active Coal Mine

 

  • Massive volumes: selenium, acid
  • waterStrider beats all other systems - removes 99.5% selenium
  • Existing microbial water treatment cost $600 million
  • Same selenium problems across all coal mines in Western Canada
CoalMine