Preparation of activated carbon incorporated polysulfone membranes for dye separation
Pravin G. Ingole,Sandesh Y. Sawant,Neha P. Ingole,Radheshyam R. Pawar,Hari C. Bajaj,Kripal Singh,Moo Hwan Cho,Hyung Keun Lee
Abstract
Immediate use of activated carbon incorporated polysulfone membrane application for dye separation was reported in this work. Dimethylformamide (DMF) was used as the solvent for the membrane preparation. The membrane thus prepared were characterized in terms of surface morphology, ATR-FTIR, AFM, experimental results as membrane performance. The resultant nanofiltration (NF) membranes were tested with Congo red dye concentration 200 mg/L. The water permeability was found to be considerably higher than that reported in literature. Experimental results show that the real rejection of the Congo red is 99.57% over the transmembrane pressure 100 psi using 30% activated carbon incorporated membrane. Prepared NF membranes shows the corresponding permeates fluxes were 40 Lm-2h-1 to 82 Lm-2h-1 with different activated carbon percentage incorporated in polysulfone membrane. The present study demonstrated that dye rejection enhanced NF may be a feasible method for the dye wastewater treatment. The overall observations thus indicated that toxic residual dyes can be appreciably separated from the membrane technology, provided that the accompanying polymeric membrane, activated carbon as binding agents and the process parameter levels are astutely selected.
(1) Pravin G. Ingole, Hyung Keun Lee — Climate Change Research Division, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305343, South Korea
(2) Sandesh Y. Sawant, Moo Hwan Cho — School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712- 749, South Korea
(3) Neha P. Ingole — Department of Biology, Chungnam National University, Daejeon 305764, South Korea
(4) Radheshyam R. Pawar — Department of Energy and Environment Convergence Technology, Catholic Kwandong University, Gangneung 210701, South Korea
(5) Hari C. Bajaj, Kripal Singh — CSIR-Central Salt & Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364002, Gujarat, India.
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