scholarly journals Recovery of Salts from Synthetic Erythritol Culture Broth via Electrodialysis: An Alternative Strategy from the Bin to the Loop

2022 ◽  
Vol 14 (2) ◽  
pp. 734
Author(s):  
Laura Daza-Serna ◽  
Katarina Knežević ◽  
Norbert Kreuzinger ◽  
Astrid Rosa Mach-Aigner ◽  
Robert Ludwig Mach ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Current Efficiency ◽  
Recovery Process ◽  
Culture Broth ◽  
Industrial Processes ◽  
Efficient Alternative ◽  
Concentration Factors ◽  
Anions And Cations ◽  
Different Levels ◽  
Removal And Recovery

Sustainability and circularity are currently two relevant drivers in the development and optimisation of industrial processes. This study assessed the use of electrodialysis (ED) to purify synthetic erythritol culture broth and for the recovery of the salts in solution, for minimising the generation of waste by representing an efficient alternative to remove ions, ensuring their recovery process contributing to reaching cleaner standards in erythritol production. Removal and recovery of ions was evaluated for synthetic erythritol culture broth at three different levels of complexity using a stepwise voltage in the experimental settings. ED was demonstrated to be a potential technology removing between 91.7–99.0% of ions from the synthetic culture broth, with 49–54% current efficiency. Besides this, further recovery of ions into the concentrated fraction was accomplished. The anions and cations were recovered in a second fraction reaching concentration factors between 1.5 to 2.5 times while observing low level of erythritol losses (<2%), with an energy consumption of 4.10 kWh/m3.

Effect of Flow Pattern on Energy Consumption and Properties of Copper Powder in the Electrolytic Process

2018 ◽  
Vol 279 ◽  
pp. 77-84 ◽  
Author(s):  
Wen Tang Xia ◽  
Xiao Yan Xiang ◽  
Wen Qiang Yang ◽  
Jian Guo Yin
Keyword(s):  
Energy Consumption ◽  
Current Efficiency ◽  
Flow Pattern ◽  
Copper Powder ◽  
Dendritic Structure ◽  
Electrolysis Cell ◽  
Powder Size ◽  
Low Oxygen ◽  
Electrolysis Process ◽  
Electrolytic Process

Because of distinctive properties, such as dendritic structure, high green strength, and low oxygen content, electrolytic copper powder has been widely used in aviation, aerospace, national defense industry and other domains. But at present, energy consumption of the electrolysis process in copper powder production is high, and the current efficiency is only about 90%. Therefore,the decrease in energy consumption of the electrolysis process has become the major bottlenecks in the development of the enterprises. In this paper, a new electrolysis cell with different electrolyte inlet arranged on the cell was manufactured. Then, the effect of flow pattern of electrolyte on the current efficiency, energy consumption and properties of copper powder was investigated. The experimental results showed that the electrolytic process had the higher current efficiency, lower energy consumption and smaller copper powders when the flow rate is 0.5l/min in the paralleled inlet and 1.5 l/min in the traditional inlet. Under the optimal conditions, the current efficiency, energy consumption and copper powder size were 99.10%, 712.90kw∙h/t and 47.80um respectively. This means an obvious rise in current efficiency and decrease in energy consumption compared to traditional feeding method.

Fabrication of asymmetrical diffusion dialysis membranes for rapid acid recovery with high purity

2015 ◽  
Vol 3 (47) ◽  
pp. 24000-24007 ◽  
Author(s):  
Xiaocheng Lin ◽  
Ezzatollah Shamsaei ◽  
Biao Kong ◽  
Jefferson Zhe Liu ◽  
Tongwen Xu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Anion Exchange ◽  
High Purity ◽  
Process Efficiency ◽  
Industrial Processes ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Dialysis Membranes ◽  
Diffusion Dialysis

Anion exchange membranes with fast acid permeation and high retention of salts have been fabricated to increase the process efficiency of acid recovery from various industrial processes via diffusion dialysis, thereby greatly reducing their energy consumption and environmental impact.

scholarly journals Energy Efficiency of Pneumatic Cylinder Control with Different Levels of Compressed Air Pressure and Clamping Cartridge

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3711
Author(s):  
Vladislav Blagojevic ◽  
Dragan Seslija ◽  
Slobodan Dudic ◽  
Sasa Randjelovic
Keyword(s):  
Energy Consumption ◽  
Air Pressure ◽  
Compressed Air ◽  
Pneumatic Cylinder ◽  
Final Position ◽  
Return Stroke ◽  
Cylinder Piston ◽  
Reduce Energy Consumption ◽  
The Cost ◽  
Different Levels

Since pneumatic systems are widely used in various branches of industry, the need to find ways to reduce energy consumption in these systems has become very pressing. The reduction in energy consumption in these systems is reflected in the reduction of compressed air consumption. The paper presents a cylinder control system with a piston rod on one side, in which the reduction in energy consumption is ensured by using different levels of supply pressure in the working and the return stroke, and by holding the cylinder piston rod in its final positions with a clamping cartridge. Clamping and holding the piston rod in its final position further affects the reduction in energy consumption. Experimental data show that the application of the proposed control leads to a decrease in compressed air consumption of 25.54% to 32.97%, depending on the compressed air pressure used in the return stroke. The cost-effectiveness of the proposed cylinder control with different levels of compressed air pressure and holding the final position by clamping cartridge is presented.

EFFECT OF IRON ON ENERGY CONSUMPTION AND CURRENT EFFICIENCY OF ZINC ELECTROWINNING FROM SULFATE SOLUTIONS

2010 ◽  
Vol 7 (1-2) ◽  
pp. 61-66 ◽  
Author(s):  
Vanessa de Freitas Cunha Lins ◽  
Renata Abelha ◽  
Maria das Mercês Reis de Castro ◽  
Marina Maciel Dias de Souza ◽  
Leticia Lanza de Moraes ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Current Efficiency ◽  
Zinc Electrowinning ◽  
Sulfate Solutions

Metal Instabilities and its Effect on Cell Performance during Aluminium Smelting

2013 ◽  
Vol 828 ◽  
pp. 45-54 ◽  
Author(s):  
Anupam Agnihotri ◽  
Shail Umakant Pathak ◽  
Jyoti Mukhopadhyay
Keyword(s):  
Energy Consumption ◽  
Current Efficiency ◽  
Cell Voltage ◽  
Aluminum Electrolysis ◽  
Cell Performance ◽  
Consumption Pattern ◽  
Magnetic Current ◽  
Zero Current ◽  
Aluminium Smelting ◽  
Rolling Noise

The Hall-Heroult process for the production of aluminium is based on the electrochemical reduction of alumina (Al2O3) dissolved in a cryolite (Na3AlF6) based electrolyte. Instability in cell voltage is referred to as noise. Normal voltage noise is inevitable due to bubble evolution and it has little effect on performance parameters such as, current efficiency and power consumption. Metal rolling noise (wavy noise) is caused by the disturbances in cell magnetic field and it affects the cell current efficiency adversely. Investigating the causes of the cell instability in the aluminium smelting cells can lead to better cell performance. Understanding the variation in cell voltage is critical for cells, because magnitude of voltage determines the energy consumption pattern in the process and hence, any saving on voltage can save energy. Voltage affects the current efficiency of the cell and an optimum cell voltage leads to higher current efficiency without compromising on energy consumption. Magnetic, current distribution, heat loss and voltage at zero current measurements along with online current and voltage signal can help to identify the problems and their combined effects on the performance of the cells. In order to estimate the loss in current efficiency of the aluminum electrolysis cells due to metal instabilities, measurements were performed and data analyzed. The present paper analyses the effect of voltage fluctuations (noise) during metal instability along with cause of instability and its effect on current efficiency of the cell. Measurements carried out to estimate the deviations from the normal cell operations are also discussed.

scholarly journals Removing and Recovering Phosphate from Poultry Wastewater Using Amorphous Ceramics

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Youhui Xie ◽  
Qin Li ◽  
Xianzhi Zhao ◽  
Yi Luo ◽  
Yangming Wang ◽  
...  
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
Recovery Process ◽  
Phosphate Removal ◽  
Phosphate Content ◽  
Effective Technique ◽  
Poultry Wastewater ◽  
Removal And Recovery

A novel and effective technique for phosphate from poultry wastewater was developed using amorphous ceramics. Amorphous ceramics, which showed high performance for phosphate removal and recovery from poultry wastewater, were synthesized using unlimitedly available, inexpensive materials such as silica fume and lime. Dissolved phosphate in poultry wastewater can be deposited as a solid on the surface of amorphous ceramics. Phosphate content on the surface of amorphous ceramics could reach 14.20%. The phosphate removal and recovery process and mechanism was revealed by a series of characterizations, such as XRD, FESEM, BET, and so on. The present study demonstrated that amorphous ceramics have great potential as a novel, beneficial material for removing and recovering phosphate from poultry wastewater.

Efficiency of Different Mass Transfer Modes in Electrochemical Oxidation Treatment for Landfill Leachate

2012 ◽  
Vol 599 ◽  
pp. 60-66 ◽  
Author(s):  
Jin Guo Dai ◽  
Qian Wu Song ◽  
Qi Wu
Keyword(s):  
Mass Transfer ◽  
Energy Consumption ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Current Efficiency ◽  
Electrochemical Oxidation ◽  
Landfill Leachate ◽  
Oxidation Rate ◽  
Water Jet ◽  
Pressure Water

The effect of different mass transfer ways in landfill leachate treatment by electrochemical oxidation was studied, the electrochemical oxidation rate, current efficiency and energy consumption were mainly discussed by four different mass transfer ways—including higher pressure water jet electrode, aeration, mixing and natural convection. The results show that mass transfer way has an important influence for NH4+-N and CODcr removal in electrochemical oxidation landfill leachate, high pressure water jet has high current efficiency, oxidation rate and lower energy consumption, which is 7.41 mg/L.min, 48% and 0.11 Kwh/gNH4+-N in electrolytic 6 hours, respectively. Different mass transfer ways have different mass transfer coefficient, improving mass transfer coefficient could increase transfer rate and the overall efficiency of system.

Sign in / Sign up

Export Citation Format

Share Document