Fenton氧化法处理高盐榨菜废水的研究

Research on the treatment of high salinity pickled mustard tuber wastewater by Fenton oxidation process

用Fenton氧化法处理高盐榨菜废水，结果表明：室温下，在进水pH为4．4—5．0，H202投加浓度80mmol／L，n（H2O2）：n（FeSO4.7H2O）=4，反应时间20min时，COD、磷酸盐的去除率分别为29．0％、15．4％，调节反应出水pH，对COD和磷酸盐的去除率有较大影响，当调节出水pH=6时，COD、磷酸盐的去除率分别上升到51．0％、99．5％，取得了较好的处理效果。

Fenton oxidation process has been used for treating high salinity pickled mustard tuber wastewater. The results show that the maximum removing rates of COD and PO43-by this process are 29.0% and 15.4%, respectively, under the following conditions ： normal temperature, pH of the influent is 4.4-5.0, dosages concentration of H2O2 80 mmol/L, n （H2O2）：n （FeSO4.7H2O）=4, oxidation time 20 min. The pH of effluent has greater effect on the COD and PO43- removing rate. The pH of effluent is adjusted to 6 with NaOH, the maximum removing efficiency of COD and PO43- could reach 51.0% and 99.5% respectively, obtaining a better effect.