scholarly journals The experimental study of increasing the efficiency of emulsion separation

2020 ◽  
Vol 157 ◽  
pp. 06001 ◽  
Author(s):  
Vadim Zinurov ◽  
Ilnar Sharipov ◽  
Oksana Dmitrieva ◽  
Ilnur Madyshev
Keyword(s):  
Settling Tank ◽  
Experimental Studies ◽  
Research Paper ◽  
Cellular Material ◽  
Complex Flow ◽  
Water Emulsion ◽  
Oil Emulsion ◽  
Emulsion Separation ◽  
Complex Flow Structure ◽  
Highly Porous

The aim of this research paper is to compare the operation efficiency of two types of coalescents: insert, made of high porous material and flat baffles. For this purpose, the method of physical experiment was applied. This research paper shows that the use of them in the settling tank allows to increase the efficiency and velocity of water-oil emulsion separation with an increase of oil concentration in the original mixture from 15 up to 25%. The experimental studies also show that the most effective coalescers are the baffles, than the inserts, made of highly porous cellular material, due to the fact that the cells are quickly clogged with heavy oil components, which leads to a more complex flow structure through them, therefore, the process of mixing oil and water compounds is intensified and prevails over the coalescence process. The velocity of oil-water emulsion separation when using the inserts, made of highly porous cellular material, and baffles in comparison with the settling tank without inserts, increases on average by 10.9 and 14.5%.

Janus membrane decorated via a versatile immersion-spray route: controllable stabilized oil/water emulsion separation satisfying industrial emission and purification criteria

2019 ◽  
Vol 7 (9) ◽  
pp. 4941-4949 ◽  
Author(s):  
Weifeng Zhang ◽  
Xiangyu Li ◽  
Ruixiang Qu ◽  
Yanan Liu ◽  
Yen Wei ◽  
...  
Keyword(s):  
Water Emulsion ◽  
Industrial Emission ◽  
Oil Emulsion ◽  
Highly Efficient ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Water In Oil Emulsion

A PANI–SiNP-decorated Janus membrane was fabricated for highly efficient stabilized oil-in-water and water-in-oil emulsion separation, meeting industrial purification standards.

scholarly journals Investigation of outlet diameter effect on emulsion separation efficiency in rectangular separators

2021 ◽  
Vol 24 (6) ◽  
pp. 1232-1242
Author(s):  
I. N. Madyshev ◽  
V. E. Zinurov ◽  
A. V. Dmitriev ◽  
Xuan Vinh Dang ◽  
G. R. Badretdinova
Keyword(s):  
Separation Efficiency ◽  
Experimental Studies ◽  
Water System ◽  
Complete Separation ◽  
Correct Selection ◽  
Technological Parameters ◽  
Two Phase ◽  
Water Emulsion ◽  
Emulsion Separation ◽  
Oil Water

The purpose of the study is to conduct experimental studies of oil -water emulsion separation in a rectangular separator in the range of velocities along the device working area from 1.43 to 2.5 m/s. The efficiency of emulsion separation is determined by an experimental method based on measuring the density of a two-phase liquid, provided that the density of each component of the mixture is previously determined. The authors propose to use a device with U-shaped elements to increase its performance when separating oil-water emulsions. The device under study including two rows of U-shaped elements consists of one complete separation stage. The authors have conducted experimental studies of the device with U-shaped elements on the "oil-water" system, during which the efficiency of emulsion separation was evaluated. It was detemined that the proposed device provides the highest efficiency of emulsion separation of 68% when the diameter of the holes intended for the exit of the heavy phase equals to 2.5 mm in the range of emulsion velocities from 1.43 to 2.5 m/s. The conducted experimental studies will allow to use a turbulence model for calculation in the programs like Ansys Fluent or FlowVision, which will most adequately describe the separation process of similar emulsions. The experiments have proved the possibility of obtaining high values of efficiency. Therefore, the correct selection of technological parameters (average flow rate, concentration) and the size of the characteristic elements of the proposed device will allow to specify the design of a rectangular separator, for example, to calculate the number of stages to achieve the required separation efficiency or to determine the size of the separation elements.

Robust superhydrophobic carbon nanofiber network inlay-gated mesh for water-in-oil emulsion separation with high flux

2016 ◽  
Vol 4 (46) ◽  
pp. 17970-17980 ◽  
Author(s):  
Xiangde Lin ◽  
Jiwoong Heo ◽  
Hyejoong Jeong ◽  
Moonhyun Choi ◽  
Minwook Chang ◽  
...  
Keyword(s):  
Carbon Nanofiber ◽  
Separation Performance ◽  
High Flux ◽  
Water Emulsion ◽  
Oil Emulsion ◽  
High Durability ◽  
Emulsion Separation ◽  
Oil Water ◽  
Water In Oil Emulsion

A superhydrophobic carbon nanofiber network inlay-gated mesh with high durability and separation performance was developed for oil–water emulsion separation.

scholarly journals OPTICAL RESEARCH OF THE PECULIARITIES OF THE FLOW AROUND MODELS WITH LOCAL SUPERSONIC ZONES IN INDUSTRIAL ADT T – 128

2019 ◽  
Author(s):  
Антон Горбушин ◽  
Anton Gorbushin ◽  
Сергей Глазков ◽  
Sergey Glazkov ◽  
Александр Кравцов ◽  
...  
Keyword(s):  
Flow Structure ◽  
Experimental Studies ◽  
Complex Flow ◽  
Simultaneous Application ◽  
Aerodynamic Model ◽  
Wing Vibration ◽  
Physical Study ◽  
Complex Flow Structure ◽  
Asymmetric Vortices ◽  
Standard Weight

The paper discusses the results of the effective application of the method of spatial visualization of the flow around models in industrial ADT T - 128, combined with standard weight tests. Visualization of flow over the model was performed by varying humidity and temperature of the flow in test section. The results of a consistent standard weight experiment and a physical study of the characteristics of the flow around an aerodynamic model in an industrial ADT T - 128 are presented. In standard weight tests using video methods, the complex flow structure arising from the flow around an aerodynamic model at subsonic and transonic speeds is investigated. The results of balance measurements with simultaneous application of the method of spatial flow visualization around model in industrial T - 128 wind tunnel allowed to obtain physical information on the flow structure - a shock-waves, flow separation, wing vibration and deformation, the onset of asymmetric vortices. This greatly allows to expand the information content of experimental studies, to increase their reliability and to give a correct interpretation of the results obtained.

Perspective Biomass Carrier for Anaerobic Processing Systems of Organic Waste AIC

2020 ◽  
Vol 67 (1) ◽  
pp. 148-155
Author(s):  
Anatoliy V. Fedotov ◽  
Viktor S. Grigoriev ◽  
Dmitriy A. Kovalev ◽  
Andrey A. Kovalev
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Specific Surface ◽  
Organic Waste ◽  
Porous Ceramic ◽  
Experimental Studies ◽  
Ceramic Materials ◽  
Porous Ceramics ◽  
Developed Surface ◽  
Highly Porous

To speed up the wastewater treatment under aerobic conditions and to optimize the processes of anaerobic wastewater treatment in digesters, immobilization technologies of microorganisms and enzymes on solid carriers are used. Ceramic carriers based on aluminosilicates and alumina are one of the promising inorganic biomass carriers. (Research purpose) To study the structure of porous ceramic biomass carriers for anaerobic processing of organic waste and evaluate the prospects for their use. (Materials and methods) The substrate for anaerobic digestion was a mixture of sediments of the primary and secondary sewage sumps of the Lyubertsy treatment facilities. K-65 cattle feed was used to ensure the constancy of the composition of organic substances in substrates as a cosubstrate. The authors used the method of low-temperature nitrogen adsorption of Bruner-Emmett-Teller to study the pore structure and specific surface of solid carriers on a specific surface analyzer Quntachrome Autosorb-1. (Results and discussion) The main characteristics (specific surface, volume of micro- and mesopores, predominant pore radius, water absorption and others) of chamotte foam lightweight and highly porous corundum ceramics were determined. It was revealed that ceramic materials with a developed surface and electrically conductive material provided an increase in biogas yield by 3.8-3.9 percent with an increase in methane content by an average of 5 percent. (Conclusions) The results of anaerobic digestion showed a positive effect of both a conductive carrier and highly porous ceramic materials on the process of anaerobic bioconversion of organic waste into biogas. It is advisable to expand experimental studies on the use of a conductive carrier with a developed surface based on highly porous ceramics.

scholarly journals Low-cost Solutions for Velocimetry in Rotating and Opaque Fluid Experiments using Ultrasonic Time of Flight

2021 ◽  
Author(s):  
Fabian Burmann ◽  
Jerome Noir ◽  
Stefan Beetschen ◽  
Andrew Jackson
Keyword(s):  
Acoustic Waves ◽  
Flow Measurement ◽  
Low Cost ◽  
Time Of Flight ◽  
Zonal Flow ◽  
Gravitational Acceleration ◽  
Complex Flow ◽  
Ultrasonic Time ◽  
Theoretical Predictions ◽  
Complex Flow Structure

AbstractMany common techniques for flow measurement, such as Particle Image Velocimetry (PIV) or Ultrasonic Doppler Velocimetry (UDV), rely on the presence of reflectors in the fluid. These methods fail to operate when e.g centrifugal or gravitational acceleration leads to a rarefaction of scatterers in the fluid, as for instance in rapidly rotating experiments. In this article we present two low-cost implementations for flow measurement based on the transit time (or Time of Flight) of acoustic waves, that do not require the presence of scatterers in the fluid. We compare our two implementations against UDV in a well controlled experiment with a simple oscillating flow and show we can achieve measurements in the sub-centimeter per second velocity range with an accuracy of $\sim 5-10\%$ ∼ 5 − 10 % . We also perform measurements in a rotating experiment with a complex flow structure from which we extract the mean zonal flow, which is in good agreement with theoretical predictions.

Sign in / Sign up

Export Citation Format

Share Document