抄録
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.
