Floating Polymer Film for Water-Oil Separation
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Solution Overview
Problem
Current oil spill recovery methods are inefficient, costly, and prone to clogging, especially when dealing with high viscosity oils, and often rely on emulsifiers that can cause secondary ecological damage.
Innovation Solution
A water-oil separation device utilizing a polymer film with a density between that of water and oil, combined with a carbon-based material for enhanced hydrophobicity, and an oil recovery tube to collect oil, allowing for quick and continuous separation without the need for emulsifiers or complex equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If emulsifiers are used to aggregate and sink oil, then oil spreading is prevented, but secondary ecological damage occurs and effectiveness is lost when oil reaches shorelines or becomes thinner
Solution Approach 1:
The patent extracts and removes the harmful emulsifier substance from the oil spill treatment process entirely. Instead of using chemical emulsifiers that cause secondary damage, the invention uses a physical separation method with a floating barrier that aggregates oil through mechanical means only, eliminating chemical pollution to the ecosystem
Solution Approach 2:
The patent converts the harmful property of oil floating on water into a beneficial feature by using the oil's natural buoyancy to its advantage. The floating barrier leverages the fact that oil floats to create effective aggregation and separation, turning what was previously a problem (oil spreading on surface) into the mechanism for recovery
2Productivity
If adsorption method is used to remove oil with lipophilic materials, then even high viscosity oils can be removed, but continuous separation cannot be achieved and power is required for pumping
Solution Approach 1:
The floating barrier performs self-service by automatically floating on water and aggregating oil through its hydrophobic surface properties. The system requires no external power source or pumping mechanism - the oil is continuously collected and removed by the barrier's own floating and adsorption actions, enabling continuous separation without energy input
Solution Approach 2:
The patent replaces the mechanical pumping system required by adsorption methods with a passive floating barrier system. Instead of using pumps to move oil through adsorption materials, the invention uses the natural buoyancy and surface properties of the floating barrier to aggregate and remove oil, eliminating the need for mechanical power
3Productivity
If filter method is used to filter oil and water through hydrophilic/lipophobic materials, then continuous and quick filtering is achieved, but holes get clogged and separation rate becomes slow when oil viscosity increases
Solution Approach 1:
The patent uses a flexible floating barrier made of thin film material that can conform to the water surface and aggregate oil effectively. This thin film structure provides large surface area for oil aggregation without creating small holes that would clog, maintaining continuous operation even with high viscosity oils
Solution Approach 2:
The floating barrier incorporates porous hydrophobic materials that allow water to pass through while aggregating oil on the surface. The porous structure provides sufficient open space to prevent clogging while maintaining effective oil separation, ensuring continuous operation regardless of oil viscosity
4Productivity
If natural circulation type apparatus is used to separate water and oil by specific gravity difference, then oil can be recovered, but the equipment is complex and cost is high
Solution Approach 1:
The patent extracts and removes the complex circulation tank system and multiple separation chambers from the oil recovery process. The invention uses a single floating barrier that performs aggregation, separation, and recovery in one simple device, dramatically reducing structural complexity while maintaining oil recovery effectiveness
Solution Approach 2:
The floating barrier replicates the natural separation process that would occur in complex circulation systems but achieves it in a simplified form. By copying the principle of density-based separation and applying it through a floating barrier, the invention achieves oil recovery without needing expensive and complex equipment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device effectively recovers oils of various viscosities with high efficiency and simplicity, achieving oil recovery rates of 600,000 L/m2 h or more, overcoming the limitations of existing methods by using density differences and maintaining stability at the water-oil interface.
Implementation Method 1
a polymer film having a density lower than the density of water and higher than the density of oil, so as to be configured to float between water and oil
Implementation Method 2
combined with a carbon-based material for enhanced hydrophobicity
Data Source
AI summary
A water-oil separation device uses a difference in density between water and oil. The water-oil separation device can easily and quickly separate oil by using a polymer film floating at interface between water and oil. The water-oil separation device easily and quickly collects oil of various viscosities with a simple structure by using differences in density between materials without using a conventional lyophilic/lyophobic film, thus solving the drawbacks of conventional filter-based and adsorption-based methods, and enabling quick and effective responses to actual oil spill situations.