Inside SINOKLE CDOF Technology: How Does It Efficiently Degrade Refractory Wastewater?
For industrial wastewater with complex composition that resists degradation, conventional methods often fall short. The CDOF advanced catalytic ozonation unit independently developed by SINOKLE provides a leading solution to this problem through unique multi-technology integration and innovative design. This article examines the core composition and working principle of the CDOF unit.
1. Integrated patented technology: three systems ingeniously combined
The SINOKLE CDOF advanced catalytic ozonation unit (full English name: Cyclonic Dissolved Ozone Flotation Unit) is an innovative water treatment system integrating multiple patents. Rather than a simple stacking of individual technologies, it systematically integrates and optimises three core technologies — multi-stage catalytic ozonation, hydrodynamic cavitation and cyclonic flotation — into an integrated treatment unit that is a domestic first and internationally leading.
The complete unit works through five core units in concert, forming a closed-loop, high-efficiency treatment system:the oxygen generation system, ozone generation system, high-efficiency ozone dosing system, multi-stage catalytic reaction system and cyclonic dissolved gas flotation system.
2. Core working principle: three steps to deep purification
CDOF The unit's efficiency stems from its ingenious three-step purification flow of "mixing, reaction and separation".
High-efficiency ozone mixing and dissolution
After pressurisation, wastewater enters a unique jet-type ozone doser. Here the water flow and ozone gas are thoroughly mixed under high-speed shear; the gas is divided into countless fine bubbles, greatly increasing the gas-liquid contact area and prompting rapid ozone dissolution. Undissolved oxygen is further compressed into more reactive micro-nano bubbles, and both enter the main reaction stage together.Multi-stage catalytic oxidation reaction
This is the core purification step of the unit. Inside the main reactor, dissolved ozone contacts a purpose-made high-efficiency heterogeneous catalyst and instantly generates large amounts of strongly oxidising hydroxyl radicals (·OH). Hydroxyl radicals non-selectively cleave and oxidise large-molecule organic pollutants in the wastewater (such as COD) and ultimately mineralise them into carbon dioxide and water, achieving complete degradation. Meanwhile, the continuous cleaning and disturbance of the catalyst surface by micro-nano bubbles keeps catalytic activity high and durable.Cyclonic flotation separation
The oxidised water enters a reduced-pressure hydrodynamic cavitation unit, where pressure release generates more micro-bubbles that carry residual ozone into the secondary reactor for advanced treatment. At the same time, as these micro-nano bubbles rise, they efficiently adsorb and entrain non-dissolved impurities in the water such as suspended solids, colloids and oils, and the innovative cyclonic dissolved gas flotation technology makes them float and separate rapidly, ultimately delivering clear water.
3. Key technical innovations: the foundation of outstanding performance
CDOF The unit's outstanding performance rests on three fundamental technical innovations:
High-efficiency heterogeneous catalyst: made from multiple transition metal oxides via a medium-low temperature sintering process, combining high activity, high stability and long life.
Closed pressure vessel design: the entire system uses a closed, pressurised vertical integrated design that consolidates all functional modules, ensuring safe, stable operation with no off-gas leakage.
High-efficiency cyclonic flotation technology: combining the strengths of cyclonic centrifugation and dissolved gas flotation to achieve efficient, rapid separation of fine pollutants.
Through the deep synergy of these technologies, the CDOF unit builds a highly efficient, stable and thorough platform for advanced oxidation treatment of wastewater.
