A large factory with lots of smoke coming out of it

Spent Caustic Treatment

a large pile of dirt
a large pile of dirt

Caustic Waste Streams are Becoming Harder to Neutralize

Industries such as petrochemicals, refineries and gas processing generate spent caustic streams rich in sulfides, phenols and hydrocarbons, making them some of the most complex and odorous wastewaters to treat. Globally, the refining sector alone produces over 5 million tonnes of spent caustic annually (Source: Hydrocarbon Processing Journal), much of which is either incinerated or stored at high cost. With tightening VOC and odour regulations worldwide and increasing pressure on OPEX optimization, traditional treatment routes are often unsustainable or non-compliant.

a factory with smokestacks
a factory with smokestacks

How we solve it

Performance-Driven Spent CausticTreatment Systems

WOG Technologies Limited offers engineered spent caustic treatment solutions that neutralize and detoxify high-load streams with optimized CAPEX and minimal ecological impact. Our process design is tailored to influent profile, flow variability and end disposal or reuse requirements.


Key Capabilities:

  • Decentralized Material Recovery Facilities (MRFs) for automated segregation

  • Composting and RDF units for organic and combustible fractions

  • Bio-methanation and waste-to-energy integrations for energy capture

  • Secured landfilling and inert handling with environmental safeguards

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