In-Depth Breakdown: How CDFU Cyclonic Dissolved-Air Flotation + KHC Coalescing Deoiler Enable Dual Compliance of 'Effluent Reuse and Gasoline Recovery' for Oil-Depot Draw-Off Water

draw-off water treatment for light-oil (gasoline) storage depots is, in the oil and gas storage/transportation and power industries," an 'environmental+ and economic'" dual-demand typical scenario. Draw-off water carrying oil must be treated both to a level reusable as wash water and to recover high-quality gasoline——This" 'both this and that'" goal places unique requirements on the process. SINOKLE, with"CDFU CDFU cyclonic dissolved-air flotation+ KHC and KHC coalescing deoiler" as the core, provides a systematic solution with a purely physical treatment process. This article provides an in-depth breakdown from four dimensions: goal decomposition, equipment mechanism, synergy logic, and application verification.

I. First, Look at the Goal: The '"dual compliance" of draw-off water treatment — what exactly does it mean?

Light-oil storage depots periodically draw off water, and it is normal for the draw-off water to carry oil during the process. The treatment goal is clear and strict:

· 'Environmental compliance': The draw-off water must be treated to meet the requirement of being reused as wash water; the effluent cannot simply be discharged, but rather must" 'turn waste into treasure'" and be recycled;

· 'Resource recovery': The gasoline in the water has high recovery value, and the treatment process must recover the high-quality gasoline while ensuring the oil quality is not compromised.

The superposition of the two goals means the process must both" 'clean thoroughly'" and" 'preserve the quality'"—— — which is precisely the advantage of the purely physical separation route.

II. Core Weapon:CDFU CDFU, the three-in-one flotation separator

CDFU（Cyclonic Dissolved Gas Flotation Unit (cyclonic dissolved-air flotation device) is a patented technology independently developed by SINOKLE with internationally advanced level, and is also China's first new-generation high-efficiency compact enclosed pressurized flotation technology. Its technical essence lies in the organic combination of three technologies:

· Cyclonic centrifugal separation technology: Creates a cyclonic centrifugal force field inside an enclosed chamber, using the oil-water density difference to accelerate oil-droplet coalescence;

· Ultra-fine bubble generation technology: Generates a large number of fine bubbles, like" 'grippers'" that adhere to the oil-droplet surface, greatly improving the flotation separation efficiency;

· Dissolved-air flotation technology: In an enclosed pressurized environment, gas is dissolved and released, with uniform and efficient bubble release, achieving rapid separation of oil, water, and suspended solids.

With the three working in synergy,CDFU CDFU can efficiently and rapidly separate dirty oil, emulsified oil, and suspended solids from the wastewater. The whole process is purely physical, with no chemicals added—— — this is the key prerequisite for ensuring that" the gasoline quality is not compromised"'.

III. Synergy Chain:KHCKHC coalescing deoiler: it does the" fine deoiling" properly.

CDFUAfter the flotation completes rough separation, fine oil droplets may still exist in the water. At this pointKHC the coalescing deoiler enters: using the coalescence-separation principle, it lets fine oil droplets converge and grow on the coalescing element into large, easily separated oil droplets and removes them efficiently.

The two-stage relay forms a clear synergy logic:CDFUCDFU is responsible for" flotation rough separation," first removing most of the oil and suspended solids away;KHCKHC is responsible for" coalescence fine deoiling," removing residual fine oil droplets cleanly. Rough separation reduces the fine-treatment load, and fine treatment secures the separation effect; the effluent meets standards for reuse and high-quality gasoline is recovered, with both goals achieved simultaneously.

IV. Safety Design: Fully Enclosed Operation, Waste Gas into the Oil-Gas Recovery System

Light oil is a volatile, flammable, and explosive medium, and the safety requirements for draw-off water treatment cannot be overstated. This process adopts a fully enclosed operation design; the treatment process is completed within the enclosed system, and waste gas is uniformly fed into the oil-gas recovery system for treatment—— so that oil gas does not escape or discharge directly, achieving double insurance of environmental compliance and safety controllability. For light-oil storage depots, this design is" a 'plus point'" and even more so" a 'must-have'."。

V. Comparison with the Traditional Route

VI. Application Verification: Market Recognition from Case Data

The value of an advanced process must ultimately be verified by the market. SINOKLE's draw-off water treatment technology has been widely applied in draw-off water treatment scenarios such as crude-oil tank farms, product-oil tank farms, and heavy-oil power-plant tank farms of enterprises including CNPC, Sinopec, and China Power—— From crude oil to product oil, from storage-tank areas to power-plant tank areas, the implementation across different media and scenarios verifies the universality and reliability of this process, and also confirms that" SINOKLE creates good economic benefits while solving environmental problems" 's value proposition.

Summary

CDFUCDFU is responsible for" flotation rough separation,"，KHC KHC is responsible for" coalescence fine deoiling," with fully enclosed operation holding the safety bottom line and purely physical separation preserving oil quality;—— this process chain enables oil-depot draw-off water to achieve" 'effluent reuse and gasoline recovery'" dual compliance, gaining both environmental and economic benefits. For light-oil storage depots and gas-power stations, this is a mature, market-verified choice.