Water and Wastewater Technologies

Zimpro Wet Air Oxidation Process

The wet air oxidation process is the oxidation of soluble or suspended components in an aqueous environment using oxygen as the oxidizing agent. When air is used as the source of oxygen the process is referred to as the wet air oxidation process.

The Zimpro portfolio addresses several downstream areas of concern, including hydrothermal (used industrially in place of incineration to treat high strength streams), biological (technology to manage sludge and allow for generation of energy from waste), and electrooxidation (Destruction of emerging contaminants such as PFAS in an energy efficient manner – protecting the worlds drinking water).

As a leader in several emerging markets, Lummus Technology is uniquely positioned to help your business address:

  • PFAS treatment – Use proprietary technology to not only remove PFAS from the environment but destroy the forever chemicals completely
  • Water reuse/recovery/recycle – A portfolio positioned to allow for recycle and reuse of industrial and municipal wastewater sources
  • Waste to energy – Convert municipal sludge into energy or chemicals, such as sludge to syn gas, that can be used to produce energy or as a feedstock for chemical production

A broad range of both industrial and municipal application experience allows us to custom design a wet air oxidation system based on the specific application and objectives. Our experience runs from extensive R&D projects to the design and construction of more than 150 systems worldwide.

The use of Zimpro WAO includes a wide range of temperatures and pressures; the use of air, oxygen, or simply hydrolysis in the absence of oxygen; a multitude of reactor designs and flow configurations, including the use of catalyst. It is a robust treatment system with operating references that has been performing for more than 50 years.

  • Treat difficult wastewaters such as spent caustic, waste from chemical and petrochemical production, military waste, halogenated organics etc.
  • Replace less environmentally friendly technology such as incineration or deep well injection for reduction of greenhouse gas emissions
  • Treat waste that is not biodegradable and or causes toxicity issues
  • Salty wastewater and high TDS
  • Unmet discharge requirements
  • Footprint constraints

  • Provides an environmentally friendly option for replacing incineration treatment with a smaller carbon footprint and reduced operational expense
  • Eliminates SOx or NOx formation
  • Removes odor and toxicity issues through complete removal of sulfide and mercaptans below detection
  • Delivers reliable treatment services, requiring only routine maintenance and low operator attention

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