Metals Removal Technology

usptoLiberty Hydro owns and manufactures a patented technology, ZVI Blue™, to remove arsenic, selenium, chromium and mercury and other dissolved metals from wastewaters, some shown below:


Reactive Media — for purchase

  • mediaTo remove dissolved metals from water
  • Call for delivery schedules and prices
  • Granular media is pourable into various reactor vessels
  • Can replace activated alumina and other media struggling with compliance
  • For information, call


Bench-Scale Units — for onsite testing

  • benchscalesClients can purchase bench-scale units to test water at their sites
  • Specify the size desired
  • Obtain confirmation of removal effectiveness
  • Help assess the size of a pilot unit and full-scale treatment unit

Pilot Units — for field trials

  • pilotunitsAvailable for purchase and installation
  • Units available to treat a flow rate from 1 gpm to 20 gpm or higher
  • Preliminary step toward sizing a full-scale treatment system

Water Studies and Testing Services

  • waterstudiesClients can ship water for testing and treatment studies
  • We determine the characteristics of the water, the reaction time for removal, and the most effective treatment protocol

Example of System Design

Multiple reactor vessels can be configured and networked based on volume of flow and level of contamination.

Liberty Hydro can provide the treatment train and reactor vessels or collaborate with a client or partner for the media installation into existing or pre-designed systems.


Targeted Applications

targetedapplicationsCoal Ash Ponds

Landfill Contact Water

FGD Purge Water


Industrial Discharges

Mine Drainage

Successful Test Results


Advantages over biological treatment

 Biological Systems ZVI Blue™ Media
 Can handle start-stop operations  ×
 Unaffected by water temperature changes    ×
 Consistent year-round functionality    ×
 Microbes can die and require months for re-seeding  ×  
 Creates Selenium pellets requiring further treatment  ×  
 Can create organo-selenium harmful to aquatic life  ×  
 Traditionally used for nitrate removal  ×  
 Media can be replaced & disposed in regular landfill    ×
 Requires removal of dissolved iron in the effluent    ×
 Installations can be modular and transportable    ×

Learn More

Liberty Hydro

Developer and owner of propriety ZVI Blue™ to remove heavy metals and contaminants from wastewater.



Including ZVI Blue™ Reactive Media, as well as testing and analysis solutions.



Understand the technology behind our propriety ZVI Blue™ wastewater treatment system.



Contact our management team for more information or to purchase ZVI Blue™.


Liberty Hydro

About Liberty Hydro


Liberty Hydro developed and owns a propriety technology, called ZVI Blue™, to remove heavy metals and contaminants (including selenium, mercury and arsenic) from wastewater discharges at power generation facilities, industrial sites and coal mine operations.

This reactive media technology has been proven in field applications and can be customized to target specific water contaminants of concern.

Our Mission

To provide freedom from water problems for power plants, mines, and industry.

Our Solutions and Services:

  • Metal Removal for Industrial and Mine Operations
  • Treatment for Coal Ash Pond Dewatering
  • Treatment of FGD Purge Water
  • Control of Mine Drainage
  • Primary Treatment (phys chem) Optimization



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Management Team

Mark Kropilak, Esq.

  • 30 years of experience in the water/wastewater profession
  • Corporate development and M&A attorney
  • 200+ growth ventures for Aqua America (NYSE: WTR)
  • Advisor to Private Equity and Strategic Investors
  • BA in Economics / Accounting from Saint Vincent College
  • EMBA from Villanova University
  • JD Columbia University

John Taylor, Ph.D.

  • 30 years of analytical experience
  • Decade as analytical chemist for Dow Chemical Company
  • 14 scientific publications and Six Sigma Black Belt
  • BS in Chemistry, University of Manchester
  • PhD in inorganic chemistry from Auburn University

Gerard Hodge

  • Oversees manufacture and installation ZVI Blue™ reactive media systems
  • Background in media manufacturing, welding, shop fabrication, and pilot assembly and installation

Janis Nary

  • 17 years experience with engineering and automation firms
  • Experience managing projects and preparing grant applications
  • BA Journalism, Marshall University