Advanced Engineering

Physics-Driven
Water Purification.

Chemical-free Wastewater Solutions for Energy Industries.

Trusted by Global Energy Leaders

03Resilience

Conquering Complex Oily Water.

Unyielding in Extreme Conditions.

Built to break the toughest emulsified and oily streams, holding precision where conventional systems foul, clog, and fail.

02Footprint

Ultra-Compact Footprint.

Perfect for Tight Integrations.

A fraction of the footprint of conventional systems — engineered to drop into space-constrained skids, retrofits, and offshore decks.

01Operating Cost

Zero Chemicals.

Radical OPEX Reduction.

No coagulants, no flocculants, no demulsifiers — purely physical separation that strips chemical spend out of your operating budget.

Why Kelier?

Solutions for Your Toughest Water Challenges.

Oilfield Produced Water

Physical-enhanced separation combined with multi-stage filtration, engineered for the most challenging oily wastewater streams. Zero chemical addition throughout the full process — delivering stable, compliant effluent quality while recovering high-purity crude oil as a valorised resource, building a low-cost, sustainable treatment loop for large-volume produced-water projects.

Explore Solution

01 / 03

Core Portfolio

Physics-First Apparatus.

CDFU

Chemical-Free. Sludge-Free. Trouble-Free.

The next-generation replacement for both conventional CFU (cyclonic flotation) and conventional DAF (dissolved-air flotation). Organically combines cyclonic centrifugal separation with dissolved-gas flotation to improve flotation efficiency and shorten retention time for rapid oil and suspended-solids removal. Operates with zero chemical addition — no coagulants, flocculants, or demulsifiers — at a treatment precision of 2–5 µm. Three clear advantages over legacy equipment: no chemical storage or transport overhead, recovered oil free of chemical-sludge contamination, and zero hazardous chemical oily sludge generated.

Discover CDFU

01 / 04

Physics-Driven Water Purification.

Solutions for Your Toughest Water Challenges.

Oilfield Produced Water

Physics-First Apparatus.

Ready to redefine your water treatment?

Physics-Driven
Water Purification.