摘要：
研究了水热辅助Fenton试剂氧化法对中和沉淀-气浮工艺处理后的显影废水的深度处理效果和影响因素。结果表明,在最佳反应条件下,当进水CODCr为300~400 mg/L时,处理出水CODCr<60 mg/L,达到《污水综合排放标准》(GB 8978—1996)一级标准要求。在实验条件下,最佳反应参数为:初始pH为2.5,反应温度为110℃,FeSO4.7H2O投加质量浓度为3.6 g/L,30%H2O2投加质量浓度为3.3~3.7 g/L,反应时间为1~2 h。水热辅助Fenton试剂氧化法的CODCr去除率可达85.2%。
关键词:
显影废水,
Fenton试剂,
水热辅助,
氧化法,
深度处理
Abstract:
The advanced treatment efficiency and influencing factors of hydrothermal-assisted Fenton reagent oxidation method on the development wastewater pretreated by neutral precipitation -flotation process have beeninvestigated. The results show that under the optimum condition，i.e. when the influent CODCr is 300-400 mg/L，theeffluent CODCr is less than 60 mg/L，meeting the requirements of the first grade Comprehensive Standard of Wastewater Discharge（GB 8978—1996）. Under the experiment conditions，the optimal operating parameters are as follows：initial pH is 2.5，reaction temperature 110 ℃，FeSO4·7H2O dosage 3.6 g/L，30%H2O2 dosage 3.3-3.7 g/L，and reaction time 1 -2 h. The removing rate of CODCr by hydrothermal-assisted Fenton reagent oxidation method reaches 85.2%.
Key words:
development wastewater,
Fenton reagent,
hydrothermal-assisted,
oxidation method,
advanced treatment
中图分类号:
曾小君, 王和平. 水热辅助Fenton试剂氧化法深度处理显影废水的研究[J]. 工业水处理, 2011, 31(11): 57-59,60.
Zeng Xiaojun, Wang Heping. Study on the advanced treatment of development wastewater by thehydrothermal-assisted Fenton reagent oxidation process[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(11): 57-59,60.