Phenol Removal from Water by Pulsed Power Discharge: A Review

2013 ◽  
Vol 64 (4) ◽  
Author(s):  
Hashem Ahmadi ◽  
Muhammad Abu Bakar Sidik ◽  
Mehrdad Khamooshi ◽  
Zulkafle Buntat
Keyword(s):  
High Voltage ◽  
Pulsed Power ◽  
Phenol Removal ◽  
Advantages And Disadvantages ◽  
High Voltage Discharge ◽  
Significant Effort

In the last three decades, pulsed high voltage discharge technology has offered promising techniques for the treatment of wastewaters released to the environment by industry. A significant effort has been directed towards understanding the processes that occur during the discharge of solutions for a variety of reactor configurations. This review presents the disadvantages and advantages of different reactors based on discharge phase. Detailed information is also provided on the principals used in each technique and the advantages and disadvantages associated with each method. Finally, a discussion on the different discharge areas is presented.

Efficient removal of phenol from aqueous solution by the pulsed high-voltage discharge process in the presence of H2O2

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Removal Efficiency ◽  
High Voltage ◽  
Treatment Time ◽  
Phenol Degradation ◽  
Temperature Treatment ◽  
Phenol Removal ◽  
Discharge Process ◽  
Efficient Removal ◽  
Solution Ph ◽  
High Voltage Discharge

This study investigates the phenol degradation by pulsed high-voltage discharge (PHVD). The effect of solution pH, temperature, treatment time and initial phenol concentration on phenol degradation were examined. The results showed that the phenol removal efficiency was increased with the rise of pH, temperature and treatment time. The phenol removal efficiency was 48%, 46%, 42% and 34%, respectively at 10, 40, 90 and 160 ppm phenol solutions. The phenol degradation rate was increased markedly when H2O2 was added into the solution. Almost complete phenol degradation (100%) was achieved when 20-40 mM of H2O2 was added into phenol solutions of 40, 90 and 180 ppm.

Parameters of the Plasma of a Large-Scale High-Voltage Discharge in Air at Reduced Pressures

2019 ◽  
Vol 45 (6) ◽  
pp. 527-536 ◽  
Author(s):  
A. V. Strikovskiy ◽  
S. V. Korobkov ◽  
M. E. Gushchin ◽  
A. A. Evtushenko ◽  
I. Yu. Zudin
Keyword(s):  
High Voltage ◽  
Large Scale ◽  
High Voltage Discharge ◽  
Reduced Pressures

scholarly journals A Review of Techniques for RSS-Based Radiometric Partial Discharge Localization

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 909
Author(s):  
David W. Upton ◽  
Keyur K. Mistry ◽  
Peter J. Mather ◽  
Zaharias D. Zaharis ◽  
Robert C. Atkinson ◽  
...  
Keyword(s):  
Power Systems ◽  
High Voltage ◽  
Partial Discharge ◽  
Specific Area ◽  
Electrical Insulation ◽  
Acoustic Detection ◽  
Advantages And Disadvantages ◽  
Initial Stage ◽  
Catastrophic Failures ◽  
Radiometric Detection

The lifespan assessment and maintenance planning of high-voltage power systems requires condition monitoring of all the operational equipment in a specific area. Electrical insulation of electrical apparatuses is prone to failure due to high electrical stresses, and thus it is a critical aspect that needs to be monitored. The ageing process of the electrical insulation in high voltage equipment may accelerate due to the occurrence of partial discharge (PD) that may in turn lead to catastrophic failures if the related defects are left untreated at an initial stage. Therefore, there is a requirement to monitor the PD levels so that an unexpected breakdown of high-voltage equipment is avoided. There are several ways of detecting PD, such as acoustic detection, optical detection, chemical detection, and radiometric detection. This paper focuses on reviewing techniques based on radiometric detection of PD, and more specifically, using received signal strength (RSS) for the localization of faults. This paper explores the advantages and disadvantages of radiometric techniques and presents an overview of a radiometric PD detection technique that uses a transistor reset integrator (TRI)-based wireless sensor network (WSN).

High Voltage Pulsed Power Supply Using IGBT Stacks

2007 ◽  
Vol 14 (4) ◽  
pp. 921-926 ◽  
Author(s):  
Jong-Hyun Kim ◽  
Byung-Duk Min ◽  
Sergey Shenderey ◽  
Geun-Hie Rim
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Pulsed Power ◽  
Pulsed Power Supply

scholarly journals Observation of hard radiations in a laboratory atmospheric high-voltage discharge

2017 ◽  
Vol 50 (16) ◽  
pp. 165202 ◽  
Author(s):  
A V Agafonov ◽  
V A Bogachenkov ◽  
A P Chubenko ◽  
A V Oginov ◽  
A A Rodionov ◽  
...  
Keyword(s):  
High Voltage ◽  
High Voltage Discharge

scholarly journals Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

Plasma ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 309-331
Author(s):  
Wahyu Diono ◽  
Siti Machmudah ◽  
Hideki Kanda ◽  
Yaping Zhao ◽  
Motonobu Goto
Keyword(s):  
High Pressure ◽  
High Voltage ◽  
Electrode Materials ◽  
Discharge Plasma ◽  
Type System ◽  
Nanoparticle Synthesis ◽  
Plasma Source ◽  
Synthesis Of Nanoparticles ◽  
Water Pollutant ◽  
High Voltage Discharge

The application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4 to 18.6 kV) as a discharge plasma source. The results showed that the electrode materials, the pulsed repetition rates, the applied number of pulses, and the applied voltages had a significant effect on the degradation reactions of organic compounds. Furthermore, carbon solid materials from glycine decomposition were generated during the high-voltage discharge plasma treatment under high-pressure conditions, while Raman spectra and the HRTEM images indicated that titanium dioxide with a brookite structure and titanium carbide nanoparticles were also formed under these conditions. It was concluded that this process is applicable in practice and may lead to advanced organic compound decomposition and metal-based nanoparticle synthesis technologies.

A high voltage pulsed power supply with magnetic switch for ESP

2007 ◽  
Author(s):  
Rui Xie ◽  
Jiande Wu ◽  
Wuhua Li ◽  
Xiangning He
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Pulsed Power ◽  
Magnetic Switch ◽  
Pulsed Power Supply
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