Wet oxidation of waste water with LEWA diaphragm pumps

Chemical waste water or landfill leachates, for example, are oxidized in these processes.

LEWA supplies metering and process diaphragm pumps for the wet oxidation of waste water that are established in the industry due to their availablity, wide adjustment ranges, and high product quality.

Solutions for wet oxidation

Due to these special requirements, diaphragm pumps are used for applications in the field of wet oxidation.

The advantages of LEWA pumps are:

  • Hermetically tight
  • Corrosion resistant materials
  • Very high availability and reliability
  • Pressures up to 1,200 bar
  • Extremely precise flow rates
  • High positioning accuracy
  • Reproducibility through control accuracy
  • Comprehensive documentation of qualification and certification
  • Worldwide qualified service

Areas of application for LEWA pumps, e.g. wet oxidation

LEWA metering and process diaphragm pumps are used in the following processes:

  • Low-pressure processes   
  • High-pressure processes
  • Catalytic processes
  • Supercritical wet oxidation

In these processes, chemical waste water is oxidized, that for example contains amines, dyes, cyanides, nitrobenzene, ammonium or halogens. In addition to landfill leachates, effluents that contain bacteria or biomass are treated in the same manner.

Background for wet oxidation

Process description

Wet oxidation is the destruction of organic compounds by the introduction of a suitable oxidation agent. The reaction takes place in the liquid phase under high pressure and high temperature. The goal is the destruction of critical compounds in decomposable materials.

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