Study on micro electrolysis and physicochemical combined treatment for vitamin B12 refractory organic wastewater
微电解联合物化法处理维生素B12难降解废水的研究

The use of combined micro-electrolysis and physiochemical treatment of vitamin B12 refractory wastewater was analyzed. Experiments on optimum technical condition of combined micro-electrolysis and physiochemical treatment of vitamin B12 were carried out. Under optimum conditions, the color removal rate of vitamin B12 wastewater reached 88.46%, COD removal rate reached 71.06%, the treatment effect was satisfactory. This treatment adsorbed pollutants directly on modified bentonite finally, without producing concentrated wastewater, acid and alkali wastewater which need more difficult treatment, and without entraining toxic and harmful substances. It could effectively reduce water pollution, decrease pollution load of subsequent biological treatment equipment.