Separation of Oil-Water Emulsion in Laboratory Setup with U-Shaped Elements

Dang Vinh,В Э Зинуров ,О С Дмитриева ,В В Харьков

doi:10.1051/matecconf/202134603077

Abstract

This study considers the problem of separation of oil-water emulsion in the case of oil spills. The standard methods of separation of the emulsion were presented. A unit with U-shaped separation elements has been developed. The device's operating principle was described, in which the separation of the oil-water emulsion occurs mainly due to the action of centrifugal forces arising from flow motion between the U-shaped elements and gravitational forces. The laboratory setup used for experiments was presented. The aim was to study the separation process of oil-water emulsion in a setup under varying initial temperature and initial density of the emulsion. The results showed that the device can separate the oil-water emulsion into light and heavy phases with an efficiency of at least 93.4% at a velocity of 1.39–2.15 m/s in narrow sections between the U-shaped elements. One way of improving the separation of the oil-water emulsion is to increase the working temperature. It was found that the increased efficiency of 2.5% indicates that device applicability caused the presence and availability of heating devices. As the crude oil content in the feed increases, it is necessary to increase the number of rows of U-shaped elements or repeat the process.

Highlights

Crude oil spills cause severe damage to aquatic ecosystems
An important task is to quickly and effectively clean-up contaminated waters from them because the consequences are tragic for natural processes, including changes in habitat conditions and losses for human society. Due to their lower density relative to water, oil products are floating on the surface of the sea or lake, forming an oil slick that changes the composition of the water and prevents the passage of oxygen through the oil layer, causing oxygen deficit
If water is not treated in the short term, heavy oil products gradually begin to settle, contaminating benthal deposits

Summary

Introduction

An important task is to quickly and effectively clean-up contaminated waters from them because the consequences are tragic for natural processes, including changes in habitat conditions and losses for human society. Due to their lower density relative to water, oil products are floating on the surface of the sea or lake, forming an oil slick that changes the composition of the water and prevents the passage of oxygen through the oil layer, causing oxygen deficit. Oil spills lead to a decrease in https://doi.org/10.10 51/matecconf /202134603077 the population of diverse marine species, especially birds and marine invertebrates, mammals, to an increase in various diseases, including oncological and cardiovascular diseases in humans and other negative environmental consequences [4-7]

Methods

Results

Conclusion