摘要
采用膜电容去离子技术,对镇江自来水进行处理。确定膜电容去离子装置所需的各种材料,设计并制作复合电极单元。将5个复合电极处理单元串联并进行实验,确定能适应市场需求的装置参数,包括内部结构参数和外部运行参数。实验结果表明,当装置的活性炭纤维比表面积为1 600 m2/g,电极间距为1.5 mm,电压为2.0 V时,处理效果较好。流量为350 m L/min时复合电极装置的处理效果比100 m L/min差,但是更符合市场需求。一定范围内的温度变化对该装置去除效果的影响很小。将复合电极单元数从5个增至40个后,离子去除率由12.73%增至62.32%。
Membrane capacitive deionization(MCDI) technology was used to purify the tap water in Zhenjiang,China.The materials needed were choosing to make the MCDI composite electrode unit.The MCDI composite electrode was manufactured when the internal structure designed.Experiments were carried out with 5 unites connected together in order to determine the optimum parameters.The results showed that it has better treatment efficiency when specific area of activated carbon is 1 600 m2/g,electrode spacing is 1.5 mm,voltage is 2.0 V.The unit with a flow rate of 100 m L/min has better treatment efficiency than that with a flow rate of 350 m L/min.But the 350 m L/min of flow rate fits the market demand better.There is little effect of temperature.The ion removal rate increases from 12.73% to 62.32% when the number of the treatment units increases from 5 to 40.
出处
《环境工程学报》
CAS
CSCD
北大核心
2015年第2期807-811,共5页
Chinese Journal of Environmental Engineering
关键词
膜电容去离子
活性炭
离子交换膜
吸附
membrane capacitive deionization
activated carbon
ion-exchange membrane
adsorption
