摘要
针对现有的维生素C生产废水处理工艺出水不能达标的问题,采用MBR和Fenton试剂对原有废水处理工艺进行提标改造。在MBR系统进水COD的质量浓度为350～650 mg/L,污泥质量浓度为8 000 mg/L,溶解氧的质量浓度为2～3 mg/L,停留时间为20 h时,出水COD的质量浓度可降至120～135 mg/L。再通过Fenton试剂氧化(硫酸亚铁和H2O2的投加量分别为120和80 mg/L),最终出水COD的质量浓度稳定在80 mg/L以下。对于维生素C生产废水处理工艺的选择,MBR-Fenton试剂氧化可作为推荐工艺。
For the purpose of reconstructing vitamin C wastewater treatment process so as to insure the effluent quality meet the new discharge standard, MBR-Fenton combined process was applied to treat the said wastewater. Under the condition that, the mass concentration of COD in influent water of MBR system was 350 - 650 mg/L, the mass concentration of sludge and dissolved oxygen were 8 000 and 2 - 3 mg/L respectively, the HRT was 20 h, the mass concentration of COD in effluent water decreased to 120 - 135 mg/L. The effluent COD concentration was finally stabilized below 80 mg/L through Fenton reagent oxidation（the dosage of ferrous sulfate and H2O2 were 120 and 80 mg/L respectively）. Thus it can be seen that, MBR-Fenton reagent oxidation process is worthy of being recommended for vitamin C wastewater treatment.
出处
《工业用水与废水》
CAS
2010年第1期58-60,共3页
Industrial Water & Wastewater
