摘要：

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,H₂O₂投加浓度80 mmol/L,n(H₂O₂)∶n(FeSO₄.7H₂)=4,反应时间20 min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。

关键词: 高盐, 榨菜废水, Fenton氧化

Abstract:

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 PO₄^3-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 80mmol/L,n (H₂O₂)∶n (FeSO⁴.7H₂) =4,oxidation time 20 min.The pH of effluent has greater effect on the COD andPO₄^3-removing rate.The pH of effluent is adjusted to 6 with NaOH,the maximum removing efficiency of COD and PO₄^3-could reach 51.0% and 99.5% respectively,obtaining a better effect.

Key words: high salinity, pickled mustard tuber wastewater, Fenton oxidation

中图分类号: 

• X703.1