CaviFlow® | (Waste) Water Treatment

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Innovative Plug&Play Module | Cavitation Technology

Page last modified

November 20 2025

Hydrodynamic cavitation (HC) is emerging as one of the most promising enablers of sustainable wastewater treatment. RAPTECH’s CaviFlow® unit harnesses cavitation to intensify oxidation, mixing, separation, and filtration, achieving higher efficiency with lower energy demand.

Applications

Pre-treatment for aeration and biological activity

Enhances oxygen transfer and microbial accessibility
Promotes radical formation from water and dissolved oxygen
Increases oxidative efficiency even without added chemicals

Booster for oxidative treatments

Strongly synergizes with ozonation, H₂O₂, and combined advanced oxidation processes

Enhancer for activated carbon treatment

Reduces fouling, improves adsorption, and extends filter life

Support for ceramic membrane filtration (micro-, ultra-, and nanofiltration)

Cavitation reduces fouling and concentration polarization on membrane surfaces
Enhances flux and prolongs membrane lifetime by preventing pore blockage

Support in sedimentation and clarification

Destabilizes colloids, emulsions, and bacterial colonies, improving separation and sludge settling

CaviFlow® demonstrates how physical and chemical intensification can transform wastewater treatment into a more sustainable, energy-efficient, and cost-effective process.

Its combination of radical-driven chemistry, thermal enhancement, advanced filtration support, and superior mixing makes it a practical pathway toward future-proof water treatment solutions and circular economy targets.

CaviFlow® | Plug&Play

CaviFlow® inline-units offer an uncomplicated plug & play solution to benefit from Cavitation Technology for (waste) water treatment.

Advantages:

Individually scalable from 6 m3/h to 100 m3/h
Quick integration into existing process systems
Without high investment costs
Threaded or flanged connections
Immediately ready for use
Space-saving compared to conventional agitators
Made of (stainless) steel
No moving parts inside – durable and low maintenance

Pros & Limitations

CaviFlow® Plug&Play inline solution

No high investment costs required

Specification

Title	Description
Theme/Discipline	Process Engineering
Core Tech	Process Equipment
Industry	Water
CaviFlow® Module \| Plug&Play	CaviFlow® Inline module \| Easy to install \| Easy-to-clean \| Low-maintenance design \| Reduce emissions - maintain systems Scalable from 6 m3/h to 100 m3/h \| Quick integration into existing process systems \| Without high investment costs \| Threaded or flanged connections \| Immediately ready for use \| Space-saving compared to conventional agitators \| Made of (stainless) steel
Cavitation as a Green Technology	Cavitation is increasingly recognized as a green and sustainable processing technology. By leveraging physical hydrodynamic effects—microbubbles, shear, and localized heating—rather than relying solely on chemical additives, it enables effective treatment with reduced environmental impact.
Energy Efficiency	Lower aeration demand through intensified oxygen transfer
Oxidative Performance	Boosted removal of micropollutants and trace elements
Filtration & Membrane Enhancement	Reduced fouling, improved flux, and extended lifetime of activated carbon and ceramic membrane systems
Sedimentation Assistance	Improved particle destabilization and sludge separation
Typical Wastewater Applications	Municipal wastewater (domestic and greywater) Industrial effluents (dye-laden, pharmaceutical, oily waters including FO/HFO)