摘要
采用减压膜蒸馏法处理模拟的苯胺废液,考察了料液的温度、pH、流量和冷侧真空度对处理效果的影响。结果表明,装置运行的优化条件是:料液的pH为9,温度为35℃,体积流量为20 mL/min,冷侧真空度为95 kPa,在此条件下,应用减压膜蒸馏法处理苯胺质量浓度为400mg/L的废液,去除率可达98%以上,膜通量可达到39.71 g/(m.2h),处理后废液苯胺的质量浓度可降至4.82 mg/L,可满足GB 8978-1996三级排放要求。
In this study,the treatment of aniline wastewater was investigated by vacuum membrane distillation（VMD） in the laboratory.The effects of parameters,such as temperature,pH,vacuum degree of the cold-side of the membrane and velocity of the flow,on the removal rate of aniline in wastewater were investigated in this study.The results indicated the optimal conditions were： pH was 9,temperature was 35 ℃,vacuum degree of the cold-side of the membrane was 95 kPa and velocity of the flow was 20 mL/min.In this condition,when the concentration of aniline wastewater was 400 mg/L,the removal rate achieved above 98% and membrane flux reached 39.71 g/（m2·h） and the concentration of aniline waste water can decrease to 4.82 mg/L which was qualified with criterion Ⅲ of Integrated wastewater discharge standard.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第7期45-48,共4页
Technology of Water Treatment
基金
吉林大学大学生创新实验计划(2010B64126)
国家潜在油气资源产学研用合作创新项目(OSR-01)
关键词
减压膜蒸馏
苯胺废液
膜通量
vacuum membrane distillation（VMD）
aniline waste water
membrane flux
