Advantages of CDOF over Conventional Ozonation

SINOKLE's CDOF (cyclonic dissolved ozone flotation integrated unit) is an innovative device that integrates cyclonic flotation with advanced ozone oxidation, providing efficient treatment for refractory organic wastewater. Compared with conventional ozonation (simple ozone dosing), CDOF offers the following notable advantages:

1. Higher oxidation efficiency: through the synergy of the swirl field and dissolved ozone, CDOF catalyses the efficient conversion of ozone into hydroxyl radicals (·OH), raising oxidation efficiency 2-5 times versus conventional ozonation and achieving full mineralization of pollutants rather than mere transfer.

2. Faster treatment: contact time is shortened to 10-30 minutes, far below the 1-2 hours of conventional ozonation; cyclonic flotation accelerates mass transfer and separation, suiting high-load scenarios.

3. Lower operating cost: a purely physical plus catalytic process with zero chemical addition cuts operating cost by 20%-30% while reducing sludge and secondary pollution.

4. Comprehensive removal: combining flotation, it not only oxidizes organics but also efficiently removes suspended solids, colour and odour, with COD removal >85%, better than the 70%-80% of conventional methods.

5. Strong stability and adaptability: fully enclosed skid-mounted design, resistant to water quality fluctuations, pH tolerance 3-10, integrated AI monitoring and unattended operation.

Application Scenarios in Wastewater Treatment

CDOF is widely used in industrial and municipal wastewater treatment and is especially suited to difficult wastewater. Typical scenarios include:

1. Pharmaceutical wastewater: treatment of antibiotic- and hormone-laden wastewater with advanced oxidation and disinfection, meeting Grade 1B of GB 18918-2002.

2. Petrochemical wastewater: for oily, phenolic and cyanide-containing wastewater, removing oil and colour; suitable for refinery desalter drainage and produced water reinjection.

3. Coal chemical wastewater: degrading polycyclic aromatic hydrocarbons (PAHs) and coking black water, improving colour and odour, and supporting subsequent biological treatment.

4. Printing, dyeing and textile wastewater: removing dye colour and organic pollutants, improving biodegradability and reducing environmental impact.

5. Municipal wastewater: for tailwater upgrading, disinfection and sludge reduction, killing bacteria; suitable for black-odorous water bodies and advanced domestic wastewater treatment.