Micro-Bubble Cyclonic Oil Separator

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Equipment Overview

Micro-bubble cyclonic oil separator is an integrated and efficient oil and impurity removal equipment that combines micro-bubble air flotation and strong cyclone centrifugal separation. It is designed for the synergistic removal of free oil, emulsified oil, suspended solids, and solid impurities in oily wastewater/oily fluids. The equipment efficiently adsorbs oil droplets and impurities through micrometer level stable micro-bubbles, and achieves rapid phase separation with the help of a cyclone centrifugal field. It does not require a large amount of chemicals, has a short residence time, occupies a small area, and operates stably. It can meet the needs of industrial continuous, enclosed, and energy-saving treatment, and is an upgraded alternative to traditional gravity settling, conventional cyclone, and ordinary air flotation.

Micro bubble generation technology:
1.Advantages of Micro-bubbles

2.Micro-bubble Preparation Technolog

（1）Low-Pressure Aeration Membrane Technology

(2) Venturi Jet Technology
Based on the principle of jet aspiration, and operating at a working pressure of approximately 0.4 MPa, the high-velocity motion of the water flow facilitates the rapid and maximal dissolution of air into the water, thereby generating supersaturated dissolved-gas water.

Application Scope

(1) Oil & Petrochemicals: Produced water, drilling fluid wastewater, tank farm water draw-off, finished product tank cleaning water, refinery oily wastewater

(2) Machining & Manufacturing: Cutting fluid wastewater, cleaning wastewater, machine tool oily wastewater, metal surface degreasing

(3) Marine & Offshore: Bilge water, ballast water, dockside oily wastewater, offshore platform produced water treatment

(4) Food Processing: Pre-treatment of oily wastewater from slaughterhouses, edible oil production, dairy processing, and beverage manufacturing

(5) Coal Chemicals / Coking: Degreasing and suspended solids removal for coal gas condensate and coking wastewater

(6) Municipal / Industrial Parks: Restaurant grease separation and lift stations, comprehensive wastewater pre-treatment, pipeline network oil spill emergency response

(7) Other Industries: Treatment of oily and suspended-solids-laden wastewater in textiles & dyeing, electroplating, paper-making, and other sectors

Technical Features

High-Efficiency Oil and Impurity Removal：With a micro-bubble diameter of 5–30 μm, the system features a large specific surface area and strong adsorption capabilities, enabling the simultaneous removal of free oil, emulsified oil, and suspended solids. Single-stage oil removal efficiency reaches ≥90%, while the removal rate for suspended solids is ≥85%.

Dual-Effect Coupled Technology: Hydrocyclone + Air Flotation.Rapid classification and separation are achieved through powerful centrifugal hydrocyclone action, while micro-bubbles precisely target and capture fine oil droplets. This synergistic combination of dual mechanisms results in treatment efficiency significantly superior to that of standalonehydrocyclone or air flotation processes.

Purely Physical Process: Green, Low-Carbon, and Eco-Friendly.The entire process requires no addition of demulsifiers or flocculants, generating no secondary sludge or chemical pollution. This effectively reduces chemical reagent costs as well as hazardous waste disposal expenses.

Compact Equipment with Small Footprint: With a hydraulic retention time of just 1–5 minutes, the equipment volume is only one-third to one-fifth that of traditional air flotation systems. It is ideally suited for installation in confined spaces, skid-mounted mobile units, and offshore platforms.

Stable and Reliable Operation: Simple Maintenance.The system contains no easily clogged microporous components and demonstrates strong resistance to impurity shocks. It supports fully automated operation with remote monitoring capabilities, enabling unattended operation; routine maintenance requires only periodic oil and sludge discharge.

Broad Applicability：The system effectively handles complex operating conditions involving high oil content, high suspended solids concentrations, and high fluid viscosity. It offers extensive customization options, including vertical/horizontal configurations, skid-mounted units, enclosed systems, and corrosion-resistant or explosion-proof versions.

Significant Energy Savings：Eliminating the need for large-scale air compressors and dissolved-air systems, the system features low power requirements, resulting in energy consumption reductions of 30% to 50% compared to traditional processes.

Technical Parameters

Parameter	Value Range	Remarks
Processing Flow Rate	1–300m³/h	Customization available for higher flow rates
Retention Time	1-5min
Inlet Oil Content	≤5000mg/L	Multi-stage series configuration available for high oil concentrations
Oil Removal Efficiency	≥90%	Consistentl meets discharge standards
Suspended Solids Removal Efficiency	≥85%	Suitable for high SS (Suspended Solids) operating conditions
Operating Pressure	0.2–0.6MPa	Adapted to site-specific piping network requirements
Operating Temperature	0–60℃	Heat-resistant versions available for high-temperature applications
Main Body Material	Anti-corrosive Carbon Steel / 304 / 316L	Anti-corrosion and explosion-proof options available
Mounting Type	Vertical, Skid-mounted / Fixed	Accommodates both stationary and mobile requirements
Control Mode	Fully Automatic PLC, Remote Monitoring	Supports unattended operation
Dimensions	Customized based on flow rate	Compact design

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