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Title: Hydroxyl radical production in plasma electrolysis with KOH electrolyte solution

Plasma electrolysis is an effective technology for producing hydroxyl radical (•OH). This method can be used for waste degradation process. This study was conducted to obtain the influence of applied voltage, electrolyte concentration, and anode depth in the plasma electrolysis system for producing hydroxyl radical. The materials of anode and cathode, respectively, were made from tungsten and stainless steel. KOH solution was used as the solution. Determination of hydroxyl radical production was done by measuring H{sub 2}O{sub 2} amount formed in plasma system using an iodometric titration method, while the electrical energy consumed was obtained by measuring the electrical current throughout the process. The highest hydroxyl radical production was 3.51 mmol reached with 237 kJ energy consumption in the power supply voltage 600 V, 0.02 M KOH, and 0.5 cm depth of anode.
Authors:
; ; ;  [1]
  1. Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia Phone: +62217863516, Fax: +62217863515 (Indonesia)
Publication Date:
OSTI Identifier:
22494479
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1699; Journal Issue: 1; Conference: International conference of chemical and material engineering (ICCME) 2015: Green technology for sustainable chemical products and processes, Semarang (Indonesia), 29-30 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANODES; CATHODES; DEPTH; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTROLYSIS; ELECTROLYTES; ENERGY CONSUMPTION; HYDROGEN PEROXIDE; HYDROXYL RADICALS; IODOMETRY; PLASMA; POTASSIUM HYDROXIDES; STAINLESS STEELS; TUNGSTEN; WASTES