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Thermal Oxidation Systems (Evaporative technology)

What is a Thermo Oxidizer?

The RGF Thermo Oxidizer is a flash evaporator. It is designed to remove the water content of the waste stream to reduce hauling charges. The Thermo Oxidizer performs this task better than traditional evaporators, leaving only a dry ash.

Why should I purchase a Thermo Oxidizer over a standard evaporator?

There are many benefits to consider, but the main ones are dry ash instead of slurry, no corrosion, less emissions, consistent efficiency, low maintenance, high return on investment, ability to eliminate waste oil and wastewater.

What do you mean by dry ash?

The Thermo Oxidizer atomizes the waste stream then injects it into a combustion chamber. The water oxidizes from around the solid, leaving a dry ash residue. An added benefit is the destruction of constituents to common elements that reduces the quantity of ash to dispose of.

How do you do control corrosion?

The interior is lined with a high density polymer ceramic refractory that provides insulation and a non-corrosive surface. This surface is designed to handle 3,000°F.

How much wastewater can be evaporated?

Three systems are available that can evaporate 30, 60 and 150 gallons per hour.

What safeguards are utilized on the system?

The system is designed to meet strict NFPA 86 regulations providing limits switches, emergency shut down functions, and PLC controller to monitor critical aspects.

Can the Thermo Oxidizer handle solids?

Yes, but depending on the volume, pre-treatment by utilizing bag filtration is recommended to reduce the load and maintenance on the system.

Can the system adjust for varying waste streams?

Temperature probes monitor the combustion chamber. When heat content decreases, the system reacts by increasing gas flow and airflow to compensate. Variable controls allows for the most efficient operation. The system will automatically adjust operating conditions based on the waste stream influent.

What about emission?

The Thermo Oxidizer exceeds standard evaporators in emissions because of its design. Atomization of the waste stream injected into the combustion chamber destroys most VOC’s and many other elements. Standard evaporators emit more VOC’s when carried off by the steam.

How much will it cost to operate?

Waste streams can be evaporated for as little as $0.10 per gallon. This will vary depending on the cost of fuel. The cost can be further reduced with the addition of a waste oil burner, if surplus oil is generated by the facility.

I’ve heard that standard evaporators cannot handle high chlorides.

This is true. The chlorides will corrode steel, even stainless steel. The RGF Thermo Oxidizer has no steel that comes in contact with the heated wastewater.

How can the Thermo Oxidizer eliminate waste oil and wastewater?

The waste oil is added to augment the fuel; as more oil is added, the PLC automatically calculates the extra BTU’s and lowers the fuel flow.

What kind of payback can I expect?

With some basic information such as fuel cost, hauling costs or current disposal costs, RGF can calculate a simple return on investment. We’ve seen paybacks as low as four months!

What fuels the Thermo Oxidizer?

The unit typically operates on natural gas and liquid propane gas. The system can also be designed to operate on other fuels such as diesel and waste oil.

What maintenance is required on this unit?

Very little maintenance is required. There are no filters/membranes to clean or replace and no sludge to dispose of. The only maintenance required is to remove the ash from inside the combustion chamber.

What are some of the waste streams the Thermo Oxidizer can effectively handle?

  • Floor scrubber water
  • Parts cleaner water
  • Equipment wash water
  • Used oil
  • Machinery coolant
  • Airport ramp runoff
  • Die casting wastewater
  • Pharmaceutical manufacturing wastes

How long has RGF been manufacturing the Thermo Oxidizer?

We developed the Thermo Oxidizer from 1992-1995 and have been manufacturing it on a continuous basis.