摘要
采用两室式双极膜电渗析装置将发酵液中的琥珀酸钠转化为琥珀酸。通过考察回收率、电流效率和能耗等技术参数,探讨了不同操作电流和进料琥珀酸钠浓度等工艺参数对转化过程的影响。结果表明,电流等于3 A,琥珀酸钠浓度为0.3 mol/L,流量为15 L/h的情况下,回收率可达99%;琥珀酸钠浓度为0.5 mol/L时,能耗最低为5.0kWh/kg。综合考虑回收率、能耗和电流效率,本试验研究范围内最佳条件:电流2 A,琥珀酸钠浓度为0.4 mol/L。
Succinic acid was recovered from fermentation broth by using bipolar membrane electrodialysis with two compartments.Through studying recovery rate,current efficiency and energy consumption,we discussed the correlativity between technological parameters and the experimental pocess,such as operating current,the concentration of sodium succinate.The results show that when the current is equal to 3 A,the concentration of sodium succinate is 0.3 mol/L,the flow is 15 L/h,and recovery rate can reach 99%.When the concentration of sodium succinate is 0.5 mol/L,the lowest energy consumption is 5.0 kWh/kg.Through comprehensive considering the recovery,energy consumption and current efficiency,the optimum test condition as follows： current is 2A and the concentration of sodium succinate is 0.4 mol/L.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第3期35-38,共4页
Technology of Water Treatment
基金
国家高技术研究发展计划(863)项目(2012AA03A608)
关键词
双极膜
电渗析
琥珀酸
琥珀酸钠
bipolar membrance
electrodialysis
succinic acid
sodium succinate
