Ozone Research and Applications India Private Limited (Oraipl)

Refinery Saves Costs and Recovers Resources with OraDredge Mobile Units - Case Study

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Nov. 28, 2025

The Challenge

A large refinery in India faced persistent sludge accumulation in its effluent treatment pits and oily lagoons. Each year, thousands of tons of sludge had to be collected and transported offsite.

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This caused:

  • High logistics and disposal costs.
  • Loss of valuable hydrocarbon-rich liquids trapped in sludge.
  • Compliance risks with wet sludge disposal.
  • Regular downtime during sludge collection.

The OraDredge™ Solution

The refinery partnered with ORAIPL to deploy OraDredge™ Submersible Robots for sludge removal and connected them to OraDredge™ Mobile Sludge Processing Units onsite.

The mobile units used Decanter Centrifuges and Screw Presses to dewater sludge and recover hydrocarbons, water, and solvents directly at the refinery premises.

The Results

Within just weeks of deployment, the refinery achieved:

  • 70% reduction in sludge volume → drastically lower disposal and transport costs.
  • Recovery of valuable oil & water → turned waste into a revenue-saving stream.
  • Zero shutdowns → all cleaning and processing were done online.
  • Improved compliance & sustainability → safe, green disposal practices.

Customer Feedback

“With ORAIPL’s OraDredge™ Mobile Units, we turned sludge management from a liability into an efficiency gain. The system paid for itself by reducing waste and recovering resources we used to lose every year.” — Plant Manager, Refinery

Results You Can Expect

By deploying OraDredge™ Mobile Sludge Processing Units, industries achieve:

  • Up to 70% reduction in sludge volume → lower handling and disposal costs.
  • Recovery of valuable liquids → direct cost savings and sustainability.
  • Reduced environmental footprint → compliance with regulations.
  • Continuous operations → no need to stop production for sludge handling.