CATAQUA™ is Nippon Shokubai’s advanced Catalytic Wet Air Oxidation (CWAO) technology for the treatment of industrial wastewater containing high concentrations of organic contaminants and other difficult-to-treat compounds.

By combining proprietary catalysts with oxygen from air under elevated temperature and pressure conditions, CATAQUA™ efficiently converts pollutants into harmless substances such as carbon dioxide, water, nitrogen and sulfates. The technology provides a reliable and sustainable alternative for wastewater streams that are not suitable for conventional biological treatment alone.

Developed and continuously improved by Nippon Shokubai, CATAQUA™ helps industrial companies reduce their environmental footprint, improve wastewater treatment performance and support regulatory compliance.

Key Features

  1. High Treatment Performance
    CATAQUA™ achieves highly efficient destruction of refractory organic compounds and other persistent contaminants, significantly reducing COD, toxicity, colour and odour.
  2. Energy-Efficient Operation
    Unlike thermal incineration, CATAQUA™ operates at moderate temperatures. The exothermic oxidation reaction generates heat that can be recovered and reused within the process, reducing operating costs and CO₂ emissions.
  3. Minimal Secondary Waste
    The catalytic oxidation process converts pollutants directly into harmless end products while minimising the generation of secondary waste streams and unwanted by-products.
  4. Proprietary Catalyst Technology
    At the heart of CATAQUA™ is Nippon Shokubai’s proprietary catalyst technology, designed for long-term stability, high activity and reliable performance under demanding industrial conditions.

Applications

  • Chemical Manufacturing
    Treatment of highly concentrated wastewater containing alcohols, aldehydes, carboxylic acids, phenols, amines and other refractory organic compounds.
  • Petrochemical and Refinery Operations
    Effective treatment of spent caustic streams and wastewater containing sulfides, thiosulfates and other reduced sulfur compounds.
  • Industrial Manufacturing
    Suitable for wastewater generated by sectors such as specialty chemicals, electronic materials, dyes, textiles, food processing and other industries where conventional treatment technologies face limitations.
  • Pre-Treatment and Load Reduction
    CATAQUA™ can be applied as a stand-alone treatment solution or as a pre-treatment step to significantly reduce organic load and improve the performance of downstream biological treatment systems.

Why CATAQUA™?

CATAQUA™ enables industries to transform challenging wastewater streams into manageable effluents through a combination of proven oxidation chemistry, proprietary catalyst technology and decades of wastewater treatment expertise. The result is a cleaner, more sustainable and cost-effective approach to industrial wastewater management.

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