CDOF Integrated Technology Innovation: SINOKLE Leads the Green Upgrade of Industrial Wastewater Treatment
Against the backdrop of high-quality development in industrial environmental protection, the treatment of refractory wastewater has become a core pain point in fields such as petroleum refining, pharmaceutical metallurgy, landfill leachate treatment, and oilfield environmental protection. As wastewater discharge standards continue to tighten, conventional processes are inefficient in treating macromolecular polymers, dissolved oil, and refractory organics, making it difficult to balance treatment effect, operating cost, and environmental compliance. The demand for efficient, intensive, and green new water treatment technologies is becoming increasingly urgent.
SINOKLE has been deeply engaged in industrial water treatment technology R&D for many years. It has independently developed the CDOF ozone advanced catalytic oxidation-cyclonic dissolved-air flotation integrated unit, which deeply integrates three core technologies: multi-catalytic oxidation, cyclonic separation, and dissolved-air flotation. Relying on its internationally leading patented technology advantages, it thoroughly solves the problem of refractory wastewater treatment, providing one-stop solutions for various high-difficulty industrial wastewater treatments and standard-upgrading renovations, with broad market application prospects.
I. Industry Imperative: Refractory Wastewater Treatment Is Urgent
Currently, industrial wastewater treatment has shifted from conventional pollutant removal to the deep treatment of refractory, highly toxic, and high-concentration organic wastewater. Special wastewaters such as oilfield fracturing flowback fluid, pharmaceutical and chemical wastewater, refinery wastewater, and landfill leachate all face the status quo of great treatment difficulty and high compliance pressure. Such wastewater generally contains refractory organics, dissolved oil, and macromolecular polymers; conventional biochemical, settling, and filtration processes can hardly treat them effectively, which not only easily causes water body pollution but also impacts subsequent treatment units, restricting normal enterprise production and environmental compliance.
At the same time, industrial wastewater treatment is gradually transitioning toward integration, high efficiency, low carbon, and no secondary pollution. Enterprises urgently need a technical solution with a small footprint, stable operation, thorough treatment, and convenient operation and maintenance, one that can meet the current stringent environmental standards while controlling long-term operating costs. As a domestically original and internationally leading new water treatment technology, SINOKLE's CDOF integrated unit precisely matches the core needs of the industry and can be widely applied in multiple scenarios such as oilfield waste liquid, chemical wastewater, and black-odor water body treatment and wastewater standard upgrading, with strong market promotion value and industry demonstration significance.
II. Existing Difficulties in Refractory Wastewater Treatment and Shortcomings of Traditional Processes
Refractory industrial wastewater has complex composition and extremely high treatment difficulty. The industry generally faces three core governance problems, and the shortcomings of traditional processes are prominent, failing to adapt to modern treatment needs.
First, pollutants are refractory and conventional processes have extremely low efficiency: dissolved oil, macromolecular polymers, and stubborn organics in the water are chemically stable; ordinary air flotation and biochemical processes can hardly decompose and remove them, with poor COD and color removal effects, failing to stably meet standards.
Second, low ozone utilization leads to high treatment costs: traditional ozone oxidation processes have poor ozone mass transfer efficiency and low utilization, with limited oxidation effects, requiring large amounts of ozone addition, resulting in high energy consumption and consumable costs that enterprises can hardly bear.
Third, dispersed processes with large footprint and complex operation and maintenance: traditional treatment processes require series connection of multiple devices, with lengthy processes and large footprints, cumbersome equipment operation and maintenance, large sludge yield, and easy generation of secondary pollution, failing to meet green environmental protection requirements.
III. Detailed Introduction to SINOKLE CDOF Core Process
CDOF (Ozone Advanced Oxidation Cyclonic Dissolved-Air Flotation Integrated Unit) is an internationally advanced patented technology independently developed by SINOKLE. It breaks the limitation of the singleization of traditional water treatment processes and innovatively organically integrates ozone multi-catalytic oxidation, cyclonic technology, and dissolved-air flotation technology to achieve high-efficiency catalytic oxidation and comprehensive removal of refractory pollutants. The entire process is highly integrated and operates fully enclosed.
The process core relies on the synergistic effect of three technical modules. After being transported by a booster pump, the incoming water first passes through the cyclone air flotation unit to initially remove floating oil, suspended solids, and large-particle impurities, reducing the subsequent oxidation load; it then enters the ozone micro-bubble reaction zone, where, with exclusive catalysts and a supercritical catalytic device, multiple catalytic oxidation reactions are triggered, ozone is decomposed into highly active hydroxyl radicals, rapidly decomposing refractory organics, dissolved oil, and odor substances; finally, after deep air flotation separation, residual pollutants and reaction residues are thoroughly separated, clear water is discharged up to standard, and floating oil residue and sludge are centrally collected and disposed of, the whole process is short, fast-reacting, and has no dead corners in treatment.
The equipment has extremely strong adaptability, with stable core product parameters: maximum treatment capacity up to 200 m3/h, medium temperature 50 degree C or lower, operating pressure 0.1 MPa or lower, ozone dosing 10-200 mg/L, adjustable flexibly according to different wastewaters; the ratio of degraded COD to ozone dosing concentration is 2 or higher, and the treatment efficiency far exceeds traditional processes, suitable for both pretreatment and deep treatment of various high-difficulty industrial wastewaters.
IV. Core Treatment Advantages of SINOKLE CDOF Process
Compared with traditional water treatment processes, SINOKLE's CDOF integrated unit has five irreplaceable core advantages, with all indicators leading the industry, perfectly solving the pain points of refractory wastewater treatment, and is the preferred solution for industrial wastewater treatment:
First, patent-backed and internationally leading technology: integrating multiple independent patented technologies, originally domestic and internationally advanced; the multi-catalytic oxidation technology improves ozone oxidation effect by more than 6 times, thoroughly breaking through the efficiency bottleneck of traditional ozone oxidation.
Second, high ozone utilization and low-carbon energy saving: the exclusive ozone micro-bubble generation technology greatly enhances ozone mass transfer, significantly improving ozone utilization, reducing ozone dosing, and lowering energy consumption and operating costs.
Third, efficient and thorough treatment with stable compliance: it can quickly remove macromolecular polymers, dissolved oil, and refractory organics from water, reducing color by more than 90 percent, simultaneously achieving high-efficiency deodorization, with stable compliance of effluent COD, color, and oil content indicators.
Fourth, green and environmentally friendly with no secondary pollution: the oxidation reaction produces no harmful by-products; sludge yield is reduced by more than 90 percent compared with traditional processes, fundamentally avoiding secondary pollution risks.
Fifth, high integration with small footprint and simple operation and maintenance: the equipment adopts skid-mounted and integrated design, with short process and small footprint, pressurized fully enclosed automatic operation, safe and stable, requiring no dedicated attendance, greatly reducing operation and maintenance difficulty and labor costs.
V. Engineering Applications and Promotion Value
SINOKLE's CDOF integrated unit has been successfully applied in multiple benchmark projects. The leachate treatment project of a landfill in Hubei, an oilfield fracturing flowback fluid treatment project, and a chemical wastewater standard-upgrading renovation project have all achieved excellent results, with long-term stable operation, treatment effects far exceeding customer expectations, and high recognition from the industry.
At present, this technology has been widely applied in multiple scenarios such as oilfield waste liquid, pharmaceutical metallurgy wastewater, refinery and chemical wastewater, black-odor river body treatment, wastewater standard upgrading, and ternary precursor product liquid treatment. Relying on its mature technical system and rich engineering experience, it has become a benchmark technology for refractory wastewater treatment.
