Treatment of Agro-Based Industry Wastewater by the Electro-Oxidation Method: Comparative Results From Iron and Aluminum Metal Plate

2016 ◽  
Vol 25 (4) ◽  
pp. 85-106
Author(s):  
Omprakash Sahu
Keyword(s):  
Metal Plate ◽  
Oxidation Method ◽  
Aluminum Metal ◽  
Electro Oxidation ◽  
Comparative Results ◽  
Industry Wastewater

scholarly journals Results of engine tests of an experimental gasoline internal combustion engine

2020 ◽  
Vol 17 ◽  
pp. 00078
Author(s):  
Dmitry Maryin ◽  
Andrei Glushchenko ◽  
Anton Khokhlov ◽  
Evgeny Proshkin ◽  
Rail Mustyakimov
Keyword(s):  
Internal Combustion Engine ◽  
Fuel Consumption ◽  
Economic Performance ◽  
Combustion Engine ◽  
Microarc Oxidation ◽  
Internal Combustion ◽  
Oxidation Method ◽  
Piston Head ◽  
Comparative Results ◽  
Insulating Properties

To improve the power and fuel and economic performance of a gasoline internal combustion engine, it has been proposed to improve the insulating properties of the piston by forming a heat-insulating coating on the working surfaces of the piston head with a thickness of 25...30 μm using the microarc oxidation method. Comparative results of engine tests are carried out, which showed that an engine equipped with pistons with a heat-insulating coating on the working surfaces of the head increases power by 5.3 % and reduces hourly fuel consumption by 5.7 % compared to an engine equipped with standard pistons.

scholarly journals Selective Leaching of Molybdenum from Bulk Concentrate by Electro-Oxidation

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1904
Author(s):  
Kyeong Woo Chung ◽  
Ho-Sung Yoon ◽  
Chul-Joo Kim ◽  
Ho-Seok Jeon
Keyword(s):  
Current Density ◽  
Ultrasonic Irradiation ◽  
Pulp Density ◽  
Density Current ◽  
Selective Leaching ◽  
Nacl Solution ◽  
Oxidation Method ◽  
Cu Complex ◽  
Electro Oxidation

This paper proposes selective leaching of molybdenum from Mo/Cu complex bulk concentrates in a 5 M NaCl solution using the electro-oxidation method. Here, the effects of several factors such as pH, pulp density, current density, and temperatures were investigated. A higher leaching yield of Mo increased with increasing pH from 5 to 9 and decreased with increasing pulp density from 1 to 10%. A rise in current density did not help enhance Mo, and the elevating temperature did not always result in a higher leaching yield. Application of ultrasonic led to higher leaching yield of Mo. Ninety-two percent of leaching yield was obtained upon leaching of Mo in 5 M NaCl at 25 °C, pulp density of 5%, and the current density of 0.292 A/g under ultrasonic irradiation with a power of 27 kW. The resultant residue mainly consisted of chalcopyrite.

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