固体高分子電解質を用いた電解法による染料含有着色水の脱色処理 ―オレンジIIの電解処理―

平良 直秀; 村上 幸夫; 山根 昌隆; 脇田 慎一; 竹田 さほり; 城間 純; 東 国茂; 竹中 啓恭

doi:10.2965/jswe.21.47

NOTE

Application of Solid Polymer Electrolyte for Treatment of Water Colored by Dyestuffs.

-Treatment of Orange II-

Naohide TAIRA, Yukio MURAKAMI, Masataka YAMANE, Shin-ichi WAKIDA, Sahori TAKEDA, Zyun SIROMA, Kunishige HIGASHI, Hiroyasu TAKENAKA

Author information

Naohide TAIRA
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Yukio MURAKAMI
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Masataka YAMANE
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Shin-ichi WAKIDA
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Sahori TAKEDA
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Zyun SIROMA
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Kunishige HIGASHI
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry
Hiroyasu TAKENAKA
Department of Energy and the Environment, Osaka National Research Institute, Agency of Industrial Science and Technology, Ministry of International Trade and Industry

Keywords: Solid Polymer Electrolyte, electrolysis, Orange II, decolorization, biode-gradability

JOURNAL FREE ACCESS

1998 Volume 21 Issue 1 Pages 47-50

DOI https://doi.org/10.2965/jswe.21.47

Details

Abstract

A solution of Orange II, one of the typical azo dyestuffs was electrolyzed by Solid Polymer Electrolyte (SPE) electrolysis with two high oxygen overvoltage anodes, PbO₂ and SnO₂ without adding any electrolytes. The solution was decolorized completely by the 120 minutes electrolysis, using PbO₂ anode at current density of 0.2 A·:cm^-2. However, even after 180 minutes of electrolysis with PbO₂ anode at 0.3 A·cm^-2, 60% of total organic carbon (TOC) and 35% of chemical oxygen demand (COD) remained. Biodegradability of the electrolyzedobserved at high current density condition (about 0.5 A·cm^-2) and longterm electrolysis (about 200 hours). TOC reduction was higher for SnO₂ electrode doped with 1% Sb than for PbO₂. Although Sb doping reduced cell resistance, the electrolytical cell voltage for SnO₂ (8.5V) was much higher than that of PbO₂ (3.5V).

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