電気分解を利用した糖蜜廃液の脱色処理-脱色効率に及ぼす電解条件の影響- Decolorization Treatment by Electrolysis of Molasses Wastewater - Effects of Electrolysis conditions on Decolorization Efficiency -
Molasses wastewater has been disposed by ocean dumping because of the dark brown color. However, ocean dumping will banned near future according to London dumping treaty. Many fermentation and sugar industries using molasses require the suitable decolorization treatment. Electrolysis for decolorization was applied for molasses wastewater, mainly wastewater from alcohol distillery, and high decolorization efficiency more than 99% was obtained. The optimal initial condition of color by dilution was 200,000U without NaCl addition. NaCl addition was effective to raise decolorization efficiency which shows the decolorization by unit electron quantity The voltage and initial pH did not effect the efficiency. The experiments using wastewater from glutamate processing industry, sugar processing industry and sugar refinery industry also showed the effectiveness of electrolysis for decolorization.
- 水環境学会誌 = Journal of Japan Society on Water Environment
水環境学会誌 = Journal of Japan Society on Water Environment 22(6), 498-504, 1999-06