Water, Air, Fuel Quality

Technologies from Fremont can be used to treat water, fuel, and air to result in lessened impact on the environment and improved plant operational efficiencies. Whether you’re involved with new plant design or need to upgrade outdated, underperforming systems, talk to Fremont about your options.


Water Quality Technologies

Each system within the plant requires water of varying quality. Fremont will help you optimize each system using the right combination of equipment and chemicals. Enhancing your system operations will use water more efficiently throughout the plant for an overall cost savings and less impact on the environment.


Electrocoagulation (EC) from Elgressy Engineering Services Ltd Company is a water treatment process that helps maximize water use efficiency, resulting in lower water treatment costs. It uses electrical current to remove water contaminants from various locations throughout the plant, including:

Cooling Towers

  • Maximize cycles of concentration
  • Eliminate bleach by-products
  • Reduce chemical requirements

Boiler Cleaning

  • Reclaim wastewater, which can be treated and reused in other areas of the plant
  • Reduce waste disposal volume

Plant Drains

  • Reclaim wastewater, which can be treated and reused in other areas of the plant
  • Remove oil contamination
  • Remove suspended solids
  • Reduce waste disposal volume

Reverse Osmosis Systems

  • Reclaim reject water, which can be treated and reused in other areas of the plan
  • Produce useful oxidants
  • Reduce the load on wastewater and zero liquid discharge systems

Evaporation Ponds

  • Reclaim wastewater, which can be treated and reused in other areas of the plant
  • Extend the life of ponds
  • Reduce evaporation requirements

Contaminants removed during EC include:

  • Heavy metals such as iron, copper, nickel, lead, mercury, and selenium, which are reduced to trace levels
  • Barium, calcium, and magnesium, which are reduced by 60%
  • Sodium and chloride, which are reduced by 30%
  • Arsenic

Once these contaminants are removed, the water is available for further treatment:

  • A clarifier removes most TSS
  • A simple cartridge filter completes the solids removal
  • Reverse osmosis can reduce salinity

Benefits of EC include:

  • No chemicals needed, which reduces treatment costs and wastewater disposal volume
  • Low operational costs
  • Less maintenance required over traditional water treatment processes, as the electrolytic processes required by EC are controlled electronically and have no moving parts
  • Effluent contains less TDS amounts, resulting in lower recovery costs
  • Can be used throughout the plant for treating wastewater from various processes
  • Custom systems for each application depending on location and environment; water source, properties, and volume; and desired treated water properties and volume
  • Treatment capacities from 1 to 50 m3/h


  • Optimize the plant clarification system, including the analyzing the potential for using electrocoagulation. EC solutions from Fremont offer savings in labor and water treatment, as well as a reduction in the use of water from freshwater sources over traditional settling tank clarifiers


  • Optimize degasification systems for the treatment and production of ultra pure water
  • Proper filtration will extend the life of RO membranes

Reverse Osmosis Systems

  • RO system equipment and optimization


  • Dechlorination chemistries and UV technologies to remove chlorine ahead of your RO system
  • Custom blends to meet your system requirements, as well standard formulations are available.


Air Quality Technologies

If your plant is one of the approximately 40% in the U.S. without advanced pollution control equipment, we can offer consulting services that include recommendations for the most cost-effective means for reducing emissions.

We can help design or optimize pollution control systems for the emissions reduction of:

  • Mercury
  • Sulfur and sulfur oxide
  • Nitrous oxide
  • Carbon monoxide
  • Carbon dioxide
  • Particulates

We have design, selection, operating, and maintenance experience with pollution control systems including:

  • Mercury control systems
  • Wet and dry scrubbers
  • Low NOx burners and NOx catalysts
  • CO catalysts
  • CO2 capture systems
  • Electrostatic precipitators and bag houses
  • Flue gas characterizations

We also provide on-site catalyst cleaning to reduce costs and plant downtime.


Fuel Quality Technologies

The type and quality of fuel used in your plant determines the extent and need for environmental controls and equipment including:

  • Use of chemicals and catalysts
  • System cleaning for optimal performance
  • Wastewater treatment

The type and quality of fuel used will significantly impact the design of your wastewater system. We can provide technical assistance, equipment, and chemicals to manage your wastewater streams most effectively, as well as analyze your fuel (coal for mercury and sulfur content, gas for aftermarket system fine tuning, etc.), since impurities that go in must be removed when they come out.