Solving Oil-Laden Oil-Depot Drainage Water: SINOKLE CDFU + KHC Coalescing Oil Separator Combine Compliance and Recovery in One Process Chain
At light-oil (gasoline) storage depots, oil-laden drain water is a long-standing problem: periodically draining bottom water causes product oil to be lost along with the water. Treating it means meeting the standard for reuse as wash water; recovering it means the oil carried out is high-quality gasoline. Could a single process combine"environmental compliance"and"oil product recovery"both? SINOKLE Technology's answer is:CDFUswirl dissolved-air flotation (CDFU)+KHCand coalescing oil-separator combination — a purely physical treatment process.
Why must oil-laden drain water"address both aspects"？
First, consider what makes this problem special. Unlike ordinary oily wastewater, oil-laden depot drain water has a distinct"dual nature:"：
First, an environmental dimension. Oily drain water cannot be discharged directly; it must be treated to meet reuse requirements. At oil depots, compliant treated water can be reused for washing, cutting discharge and saving fresh water.
Second, a resource dimension. The drain water carries gasoline — and high-grade light-oil fractions at that. Gasoline is highly valuable to recover; treating it like wastewater means dumping"钱"into the treatment tank. For the depot, this loss of product is a real economic cost.
Therefore, the ideal drain-water process must"address both aspects": it must treat the water to a reusable level while fully recovering the oil. This demands a sufficiently robust separation mechanism——— one that breaks emulsification yet preserves oil quality.
Equipment breakdown:CDFUandKHChow the roles are divided
The core of SINOKLE's process is the relay cooperation of two units.
CDFUSwirl dissolved-air flotation (CDFU) unit: the primary separator. CDFUIt is a proprietary technology independently developed by SINOKLE, representing internationally advanced know-how and the first domestic next-generation high-efficiency, compact, enclosed, pressurized flotation technology. Its strength lies in"multi-function in one unit:"it creatively integrates swirl centrifugal separation, microbubble generation, and dissolved-air flotation——Swirl centrifugation rapidly stratifies oil and water, while microbubbles act like countless"grippers"that capture oil droplets, and dissolved-air flotation provides steady separation force. Working together, they enableCDFUefficient, rapid separation of sludge oil, emulsified oil, and suspended solids from the wastewater. The free oil and emulsified oil that dominate the drain water are largely removedCDFUat this stage.
KHCCoalescing oil separator: the precision checkpoint. After the primary unit handles"the bulk,"a small amount of fine oil droplets may remain in the water; the separator's job is"the fine work:"。KHCit lets tiny oil droplets merge and grow on the coalescing medium, then separate by rising — pushing oil-water separation to a more complete level and providing end-of-line assurance that the effluent stays compliant for reuse.
System highlight: the value of fully enclosed operation
Light oil is a volatile, low-density product, adding a safety dimension to drain-water treatment. SINOKLE designed this process at the system level with that in mind:Fully enclosed operation。
Enclosure brings two benefits: first, oil vapor does not escape into the work environment, reducing safety risk at the source; second, waste gas is routed intothe vapor-recovery system,where volatile light-oil fractions are"追"recovered, cutting losses. For light-oil-laden wastewater,"enclosure"is both a safety baseline and an economic measure.
The payoff: one treatment, two returns
In terms of application value, the returns of this process are clear:
On water:——effluent is reused for depot washing and similar scenarios, cutting discharge and saving fresh water;
On oil:——the separated high-grade light oil is directly reused, turning the product from"loss"into"recovery,"directly creating economic value;
On operation:——the entire process is physical separation with no chemicals added — no chemical cost and no secondary pollution — and the fully enclosed system is safe and controllable.
Track record and endorsement: the shared choice of leading energy companies
Ultimately, a technology's quality shows in its application. According to public information, SINOKLE's process has been widely applied in drain-water treatment at crude-oil tank farms, product-oil and heavy-oil power-plant tank farms of CNPC, Sinopec, China Power and other enterprises. Leading energy companies impose extremely strict requirements on environmental compliance and operational reliability; the fact that the process is deployed and continuously serves in their tank-farm scenarios is itself strong endorsement.
Conclusion
Oil-laden drain water should not remain merely"an item on the environmental to-do list."WithCDFUswirl dissolved-air flotation (CDFU)+KHCand coalescing oil separator, SINOKLE applies a purely physical process that integrates compliant reuse and oil recovery into one process chain: water meets standards for reuse, oil is recovered for reuse, and the whole train is enclosed with no chemicals. Choose the right process, and oil-laden drain water is no longer"an environmental burden,"but a resource business that"keeps generating returns."。
