Purkait M K, Dasgupta S, De S
Department of Chemical Engineering, Indian Institute of Technology, Guwahati, Guwahati 781039, India.
J Hazard Mater. 2006 Aug 25;136(3):972-7. doi: 10.1016/j.jhazmat.2006.01.040. Epub 2006 Feb 21.
Surfactant-based separation of toxic eosin dye is studied to estimate the potential of micellar enhanced ultrafiltration (MEUF) using cetyl(hexadecyl) pyridinium chloride (CPC) as the cationic surfactant. The optimum feed CPC concentration is found from the experimental results of pure CPC solution in a batch cell. It is in the range of 10-20 kg/m(3) to have a reasonable permeate flux and lower surfactant concentration in the permeate. Selecting 10 kg/m(3) as the feed surfactant concentration, MEUF experiments are conducted to study the retention characteristics of eosin dye in the continuous cross flow system. The effects of operating conditions, i.e., feed dye concentration, operating pressure and cross flow rate on the permeate flux and observed retention of dye are investigated.
研究了基于表面活性剂的有毒曙红染料分离方法，以评估使用十六烷基吡啶氯化物（CPC）作为阳离子表面活性剂的胶束强化超滤（MEUF）的潜力。通过在间歇式池中对纯CPC溶液的实验结果确定了最佳进料CPC浓度。其范围为10-20 kg/m(3)，以获得合理的渗透通量并降低渗透物中的表面活性剂浓度。选择10 kg/m(3)作为进料表面活性剂浓度，进行MEUF实验以研究曙红染料在连续错流系统中的保留特性。研究了操作条件，即进料染料浓度、操作压力和错流速率对渗透通量和观察到的染料保留率的影响。
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