SINOKLE CDFU + MACT Process Solves the Challenge of Oily Firefighting Wastewater Treatment
In the industrial safety emergency response system, firefighting wastewater — the special wastewater generated by sudden incidents — must be disposed of efficiently and in compliance, and this has become a core part of environmental control. Oily firefighting wastewater in particular is widely generated at substations, refinery areas, oilfields and similar sites, combining the characteristics of sudden generation, high pollution and poor degradability, with broad treatment prospects and clear industry demand. As ecological and environmental standards continue to tighten, requirements for wastewater disposal in sudden environmental incidents are becoming ever more stringent. Conventional treatment processes have obvious shortcomings and struggle to cope with the complex conditions of emergency scenarios — instantaneous high flows, drastic water quality fluctuations and the coexistence of toxic and harmful substances. Focusing on the pain points of industrial emergency water treatment, and drawing on its self-developed CDFUcyclonic dissolved-air flotation + MACT modified activated carbon adsorption and regeneration dual-patent process, SINOKLE precisely cracks the bottleneck of oily firefighting wastewater treatment, providing an efficient, intensive and stable full-process solution for emergency wastewater disposal and filling a technical gap in the industry.
1. Outlook and Rigid Industry Demand for Oily Firefighting Wastewater Treatment
Oily firefighting wastewater is mainly generated during the handling of industrial fire incidents, when transformer oil at substations, firefighting foam and firefighting cooling water mix and flow into emergency pools to form highly polluted wastewater. Such wastewater is generated not only in the petrochemical and energy and power industries but also in emergency scenarios at all kinds of oil-related industrial plants; application scenarios are extensive and treatment demand continues to rise. As emergency wastewater, its disposal is directly linked to ecological and environmental safety and the bottom line of environmental compliance. If it is not treated promptly or fails to meet standards, the high-concentration oil, toxic substances such as PFOA and high-COD organic components will deal a fatal blow to the biological system of downstream wastewater treatment plants, damage the aquatic ecological environment and trigger the risk of environmental accountability.
At present, the industrial emergency environmental protection system is gradually being improved, and the disposal of oily firefighting wastewater has shifted from passive treatment to proactive prevention and control. Enterprises urgently need a process technology that responds quickly, occupies little space, resists fluctuations and treats thoroughly — one that can cope with instantaneous high-flow shocks while efficiently removing oil, toxic pollutants and high COD to achieve compliant discharge or reuse. SINOKLE's dual-patent combined process precisely matches the core requirements of emergency water treatment — fast, efficient, stable and intensive — and fits all kinds of industrial emergency scenarios, with strong market promotion value and industry application prospects.
2. Existing Treatment Difficulties and Industry Pain Points for Oily Firefighting Wastewater
Oily firefighting wastewater has special characteristics, and compared with conventional industrial wastewater its treatment difficulty grows exponentially. There are three core existing difficulties that have become common industry bottlenecks. First, the water quality is complex and highly toxic with very poor biological treatability: the wastewater has high oil content and excessive COD and TOC concentrations, while very low BOD makes it poorly biodegradable; the foam extinguishing agent contains toxic substances such as PFOA that directly inhibit microbial activity, so conventional biological methods are entirely inapplicable. Second, the emergency nature is prominent and conditions fluctuate irregularly: sudden incidents cause instantaneous high flows and drastic water quality fluctuations with extremely strong shock loads, which conventional processes cannot respond to quickly, resulting in very poor effluent stability. Third, conventional processes have low adaptability and obvious drawbacks: direct discharge pollutes the ecosystem, simple collection and off-site transport is costly, biological tank operation and maintenance is complex with a low compliance rate, conventional adsorption is easily blocked by oil fouling of the packing, and flotation performance is greatly reduced by the presence of surfactants — none can balance efficiency, cost and environmental requirements.
3. SINOKLE's Core Process in Detail: Dual-Patent Synergy for Thorough, Efficient Disposal
To address the core pain points of oily firefighting wastewater, SINOKLE has created a CDFUcyclonic dissolved-air flotation + MACT modified activated carbon adsorption and high-efficiency regeneration two-stage series closed-loop process. The two patented technologies work in synergy to first remove oil and reduce pollution efficiently, then deeply remove toxic pollutants and COD. The whole process is suited to emergency scenarios and runs automatically in a sealed system with no secondary pollution. The process details and core advantages are as follows:
1. First-stage core: CDFUPatented Cyclonic Dissolved-Air Flotation Technology
CDFUAs SINOKLE's exclusive patented high-efficiency flotation oil-water separator, it combines cyclonic centrifugal separation and flotation separation technologies and, with a CFD-optimised flow design, achieves fast and efficient oil removal, perfectly suited to high-oil, highly fluctuating emergency wastewater. It adopts three core designs — twin tangential inlets, dual flotation zones and cyclonic desanding — generating extremely strong centrifugal force that accelerates the coalescence of microbubbles and emulsified oil droplets. Bubble diameter is only 5–30 μm with uniform distribution, single-stage oil removal efficiency is ≥90%, and hydraulic retention time is under 5 minutes, only one eighth to one third that of conventional flotation. The equipment is a skid-mounted sealed pressure vessel occupying only one third of the footprint of conventional processes, tolerates 10%–120% flow fluctuations and has extremely strong shock resistance. It discharges oil and solids under pressure with no mechanical power, consuming only 10% of the energy of conventional IGF, with minimal chemical dosing and negligible sludge production.
2. Second-stage core: MACT modified activated carbon adsorption and high-efficiency regeneration patented technology
MACT technology is SINOKLE's comprehensive upgrade of conventional activated carbon processes. Through dedicated physical and chemical modification, the pore structure and surface functional groups of the activated carbon are optimised to specifically enhance the adsorption of pollutants such as PFOA, and microwave high-efficiency regeneration is combined with it to enable cyclic reuse of the adsorbent. After modification, the PFOA removal rate of the activated carbon reaches 80% and COD removal outperforms conventional processes with an efficiency of 85%–90%; the microwave regeneration technology rapidly reactivates the carbon with a high regeneration rate, short cycle and low energy consumption. The recycling rate is ≥95%, with no backwashing required and no additional wastewater produced, completely solving the pain points of conventional activated carbon: easy blocking, frequent replacement and high cost.
4. Core Treatment Advantages of SINOKLE's Process (Data Proves the Strength)
Compared with conventional treatment processes, SINOKLE's CDFU + MACT combined process has irreplaceable core advantages, leading the industry across all indicators and perfectly matching the needs of emergency disposal of oily firefighting wastewater:
First, rapid emergency response and maximum adaptability to operating conditions: the skid-mounted integrated design is easy to install and commission and can be quickly deployed to handle sudden wastewater, tolerating 10%–120% flow fluctuations and perfectly matching instantaneous high-volume, drastically fluctuating scenarios. Second, high treatment efficiency with stable compliance: CDFUsingle-stage oil removal rate ≥90%, and after MACT deep purification the PFOA removal rate is 80% and the COD removal rate far exceeds conventional processes, with effluent meeting Grade 1A and higher standards. Third, intensive and low-carbon with extremely low maintenance costs: the footprint is less than 10% of conventional processes, energy and chemical consumption are greatly reduced, the activated carbon is recycled and reused with no high consumable costs, and fully automatic operation needs no dedicated attendance. Fourth, safe and environmentally friendly with no secondary pollution: fully enclosed operation means no hazardous gas dispersion or odour, minimal sludge production, and complete avoidance of the environmental risks of conventional processes. Fifth, leading technology backed by patents: both core units are proprietary patents with technology far beyond conventional processes, suitable for all kinds of oily firefighting wastewater disposal scenarios.
Conclusion
With the high-quality development of industrial emergency environmental protection, compliant and efficient disposal of oily firefighting wastewater has become a necessity. With its CDFU + MACT dual-patent process, SINOKLE precisely cracks the industry's governance challenge, balancing emergency response speed, treatment performance and maintenance economics, and filling the technical gap in efficient treatment of emergency oily wastewater. In the future, SINOKLE will continue to deepen its work in emergency water treatment, iterating and optimising its core processes and expanding full-scenario applications for industrial emergency wastewater disposal, building a solid ecological and environmental defence line for enterprises of all kinds and leading a new trend in green disposal of industrial emergency wastewater.
