HOME > Business & Products > Catalysts & Green Energy Materials Business > Catalytic wet oxidation wastewater treatment

Business & Products

  • Get to know our story! Nippon Shokubai
  • Corporate Profile Video
  • Contact Us
For your inquiry

Wastewater treatment catalyst (Catalytic wet oxidation)

Product Wastewater treatment catalyst (Catalytic wet oxidation)
Environmental System Sales
Product Inquiry

Nippon Shokubai′s wastewater treatment catalysts are widely used in the catalytic wet oxidation wastewater treatment systems. Toxic COD components, organic nitrogen compounds, ammonia, sulfur compounds and organic chlorides are oxidized into carbon dioxide, water, molecular nitrogen, sulfate, hydrochloride, and others by the liquid phase catalytic oxidation. This wastewater treatment catalyst is suitable for treating CODCr =5,000~150,000mg/ L in wastewater. Also, this catalyst is suitable for the pretreatment system of activated-sludge method.


  1. Simultaneous treatment of COD and removal of nitrogen and sulfur compounds.
  2. Low running cost.
  3. A compact plant design for low space requirements.
  4. Stable continuous and automatic operation.
  5. Even CODCr of 20,000mg/L in wastewater can be treated without supplying any auxiliary fuel.
  6. Recovered energy as steam from the oxidation reaction of the wastewater.
  7. Deodorization and decolorization.
  8. Clean, SOx, NOx, and Dioxins free off gas.
  9. No secondary pollutants, like sludge and ashes.
  10. Reuse of treated water at high performance.

2. Applicable wastewater

  1. COD components
       formalin, acetaldehyde, glyoxal,
       phenol, dioxane, methyl methacrylate (MMA),
       formic acid, acetic acid, acetone, tetrahydrofuran (THF), methyl ethyl ketone (MEK), methyl alcohol,
       terephthalic acid, ethylene glycol, pentaerythritol etc.
  2. Sulfur compounds
       sodium sulfide, sodium thiosulfate, dimethyl sulfoxide (DMSO) etc.
       ex. wastewater from ethylene plants and spinning plants etc.
  3. Nitrogen compounds
       ammonia, isocyanate, acrylonitrile etc.
  4. Organic chlorides
       dioxin etc.

3. Catalyst

The catalysts which were developed entirely by Nippon Shokubai are charged into the reactor, and they are cylindrical pellets.

4. System Flow

This system is composed of the process units of wastewater supply, compressed air supply, heat exchanging, catalytic reaction and liquid-gas separation.

System Flow


Environmental System Sales
Product Inquiry