Removal Efficiency

Removal efficiency is the proportion of a target substance, particle population, or signal eliminated from a system, usually expressed as a percentage of its initial amount. It is determined by comparing the quantity removed with the starting quantity, so complete removal corresponds to 100% efficiency while incomplete removal leaves a measurable residual. In physics, this measure helps evaluate filters, shielding materials, particle separators, and other systems that reduce unwanted matter or radiation. Comparing removal efficiency under different flow rates, energies, material properties, or operating conditions reveals how system design influences performance and supports optimization of experimental and industrial processes.

Removal Efficiency - Related Videos

Research

JoVE Journal - Biology

Procedure to Evaluate the Efficiency of Flocculants for the Removal of Dispersed Particles from Plant Extracts

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Cited by 6 •

2016

The design-of-experiments procedure presented here allows the evaluation of different flocculants in terms of their ability to aggregate dispersed particles in plant extracts, thus reducing turbidity and the costs of downstream processing.

Education

JoVE Science Education - Chemistry

Rotary Evaporation to Remove Solvent

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2023

Source: Dr. Melanie Pribisko Yen and Grace Tang — California Institute of Technology Rotary evaporation is a technique most commonly used in organic chemistry to remove a solvent from a higher-boiling point compound of interest. The rotary evaporator, or "rotovap", was invented in 1950 by the chemist Lyman C. Craig. The primary use of a rotovap is to dry and purify samples for downstream applications. Its speed and ability to handle large volumes of solvent make rotary evaporation a preferred...

Nictitating Membrane Removal: A Surgical Procedure to Remove Nictitating Membrane from Rabbit Eye

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2025

In this video, we demonstrate a surgical procedure to remove nictitating membrane from rabbit’s eye.

Biofilm Removal Using Carbon Dioxide Aerosols without Nitrogen Purge

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Cited by 2 •

2016

Biofilms on surfaces can be effectively and rapidly removed by using a periodic jet of carbon dioxide aerosols without a nitrogen purge.

Efficiency of Liquid-liquid Extraction

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2023

Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either: (a) the relative volatilities of the compounds to be separated are very similar; (b) one or more of the mixture components are temperature sensitive even near ambient conditions; (c) the distillation would require a very low pressure or a very high distillate/feed...

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