Anil Kumar Pabby

Handbook of membrane separations : chemical, pharmaceutical, food, and biotechnological applications

PART I: MEMBRANE APPLICATIONS IN CHEMICAL AND PHARMACEUTICAL INDUSTRIES AND IN CONSERVATION OF NATURAL RESOURCES Membranes in Chemical and Pharmaceutical Industries and in Conservation of Natural Resources: An Introduction A.M. Sastre, Syed S.H. Rizvi and A.K Pabby Application of Membrane Contactors in Mass Transfer Devices A. Gupta and A. Pittman, Membrane Chromatography M.E. Avramescu, Z. Borneman, and M. Wessling Membranes in Gas Separation M.B. Hagg Pervaporation: Theory, Practice and Applications in the Chemical and Allied Industries V. Pangarkar and S. Pal Current Status and Prospects for Ceramic Membrane Applications C. Guizard and P. Amblard Membrane Technology and Supercritical Fluids: Recent Advances G. Rios, S. Sarrade, and D. Paolucci Techniques to Enhance the Performance of Membrane Processes A.G. Fane and S. Chang Separation and Removal of Hydrocarbons Using Polymer Membranes S.I. Semenova Zeolite Membranes: Synthesis, Characterization, Important Applications and Recent Advances R. Mallada, M. Arruebo, P. Pina Membrane Fouling: Recent Strategies and Methodologies for Its Minimization M.F.A. Goosen, R. Roque, and S. S. Sablani Membrane Extraction in Preconcentration, Sampling and Trace Analysis J.A. Jonsson Hybrid Liquid Membrane Processes with Organic Water-Immiscible Carriers (OHLM): Application in Chemical and Biochemical Separations V. Kislik Advancements in Membranes Processes for Pharmaceutical Applications R. Kuriyel, M. Fushijima, and G. Jung Membranes in Drug Delivery M. Grassi Bio-Responsive Hydrogel Membranes J. Hubble and R. Zhang PART II: MEMBRANE APPLICATIONS IN BIOTECHNOLOGY, FOOD PROCESSING, LIFE SCIENCES AND ENERGY CONVERSION Membrane Applications in Biotechnology, Food Processing Life Sciences and Energy Conversion: Introduction S.S.H. Rizvi Ultrafiltration Based Protein Bioseparation R. Ghosh Membrane Distillation in Food Industry S. Nene, G. Patil, and K.S.M.S. Raghavrao Applications of Membrane Separation in the Brewing Industry C.I. Moraru and U. Schrader Development of Bipolar Membrane Technology in Food and Bio-Industries G. Pourcelly and L. Bazinet Applications of Membrane Technology in the Dairy Industry P.A. Marcelo and S.S.H. Rizvi Microporous Membrane Blood Oxygenators B. Han and S.R. Wickramasinghe Transporting and Separating Molecules Using Tailored Nanotube Membranes C.R. Martin and P. Kohli The Use of Emulsion Liquid Membrane Systems in Chemical and Biotechnological Separations J. Perera and G.W. Stevens Membrane Electroporation and Emerging Biomedical Applications K.P. Mishra Proton Conducting Membrane for Fuel Cells V. Rao, K.A. Friedrich, and U. Stimming PART III: MEMBRANE APPLICATIONS IN INDUSTRIAL WASTE MANAGEMENT (INCLUDING NUCLEAR), ENVIRONMENTAL ENGINEERING AND FUTURE TRENDS IN MEMBRANE SCIENCE Membranes Applications in Industrial Waste Management (Including Nuclear), Environmental Engineering and Future Trends in Membrane Science: Introduction A.K Pabby and A.M. Sastre Treatment of Radioactive Effluents: Introduction, Fundamentals and Scope of Different Membrane Processes B.M. Misra and V. Ramchandran Radioactive Waste Processing: Advancement in Pressure Driven Processes and Current World Scenario G. Zakrzewska-Trznadel Liquid Membranes Based Separations of Actinides P.K. Mahopatra and V.K. Manchanda Reverse Osmosis Based Treatment of Radioactive Liquid Wastes Generated in Hospital Facility and in Steel Industry: Case Studies M. Sancho, J.M. Arnal, G. Verdu, and J. Lora Evaluation of Membrane Based Processing of Radioactive Nuclear Plant waste: Case Studies A.K. Pabby, S.K. Gupta, S.R. Sawant, N.S. Rathore, P. Janadan, R.D. Changrani, and P.K. Dey Application of Donnan membrane process for recovery of coagulants from water treatment residuals A.K. SenGupta and P. Prakash Utilization of Membrane Processes in Treating Various Effluent Generated in the Pulp and Paper Industry and M. Nystrom Membrane Bio-Reactors for Waste Water Treatment E. Casey Membrane Assisted Solvent Extraction for Recovery of Metallic Pollutants: Process Modeling and Optimization I. Ortiz and A. Irabien Membrane Contactors for Gaseous Streams Treatments A. Criscuoli and E. Drioli Strip Dispersion Technique: Application for the Strategic and Precious Metal Separation and Treatment of Wastewater Streams A.K. Pabby, S.C. Roy, J.V. Sonawane, F.J. Alguacil, and A.M. Sastre Electrically Enhanced Membrane Separations and Catalysis V.M. Linkov, B.J. Bladergroen, and M.A. Maluleke Membrane Processes for Treatment of Industrial Tannery Effluents: A Case Study A. Bodalo-Santoyo, E.Gomez, and A.M. Hidalgo New Developments in Nanofiltration Technology: A Case Study on Recovery of Impurity-Free Sodium Thiocyanate for Acrylic Fibre Industry S. Sridhar and B. Smitha Future Progresses in Membrane Engineering E. Drioli and E. Fontananova

Pseudo-Emulsion Based Hollow Fiber Strip Dispersion Technique (PEHFSD): Optimization, Modelling and Application of PEHFSD for Recovery of U(VI) from Process Effluent

Abstract Pseudo emulsion based hollow fiber strip dispersion technique (PEHFSD) is the first of its kind ever explored in radioactive environment for the extraction of uranium from acidic process streams. Permeation of U(VI) was investigated as a function of various experimental variables such as hydrodynamic conditions (flow rates of pseudo-emulsion and feed phase), concentration of U(VI) in the feed phase, concentration of tri-n-butylphosphate (TBP), HNO3 concentration in feed phase, O/A ratio and 0.01 M HNO3 as stripping agent in pseudo-emulsion phase. The mass transfer coefficient was calculated from the experimental results and a model has been presented for determining mass transfer characteristics. PEHFSD has been demonstrated for separation/recovery of uranium from oxalate supernatant waste generated during plutonium precipitation by oxalic acid. PEHFSD and HFSLM (hollow fiber supported liquid membrane) performance has been compared in order to analyze the efficiency of the technique.

Pseudo-emulsion based hollow fibre strip dispersion (PEHFSD) technique for permeation of Cr(VI) using Cyanex-923 as carrier

Pseudo-emulsion based hollow fibre strip dispersion (PEHFSD) technique is investigated for the permeation-separation of chromium from hydrochloric acid media. The permeation of Cr(VI) is investigated in relation to various experimental variables: hydrodynamic conditions, the concentration of Cr(VI) and HCl in the feed phase, Cyanex-923 concentration, hydrazine sulphate as the stripping agent in the pseudo-emulsion phase. The performance of the PEHFSD was analyzed and optimum conditions are suggested for chromium separation from simulated industrial waste in a hydrochloric acid media.

Application of Hollow Fiber Contactor in Nondispersive Solvent Extraction of Pu(IV) by TBP

Abstract Data on dispersion‐free solvent extraction (DFSX) of Pu(IV) from acidic nitrate media using microporous hydrophobic polypropylene hollow fiber membrane contactor with tri‐n‐butylphosphate (TBP) employing as an extractant are being presented. The DFSX operation was carried out with various concentration of TBP in n‐dodecane by passing acidic feed containing Pu (IV) through the tube side at the flow rate of 5.83 cm3 s−1 and organic extractant through the shell side at the flow rate of 1.53 cm3s−1. Extraction studies were performed under different hydrodynamic conditions and the overall mass‐transfer coefficient was evaluated with countercurrent flow condition. It was possible to extract and concentrate Pu(IV) from aqueous phase by employing this technique. For back extracting the Pu, uranous nitrate and hydroxylamine hydrochloride solution as strippants were examined, which flowed through the tube side (flow rate: 6.11 cm3 s−1) and the loaded organic was passed through the shell side with the flow rate of 1.66 cm3s−1. Results revealed that ∼80% of Pu(IV) from oxalate supernatant waste could be extracted by utilizing this technique.

Separation of Uranium and Plutonium from Aqueous Acidic Wastes Using a Hollow Fiber Supported Liquid Membrane

Abstract The use of microporous hydrophobic polypropylene, as a hollow fiber supported liquid membrane (HFSLM) was considered for removal of actinides such as uranium (U) and plutonium (Pu) from nuclear process effluents. The 1.09 M extractant, tri‐n‐butyl phosphate (TBP) diluted with n‐dodecane was used as carrier. The study includes the hydrodynamic and chemical parameters. Modeling was performed using chemical parameters and rate controlling steps were identified. It was possible to remove U(VI) and Pu(IV) from process effluent more than 99% in presence of fission products. The optimum effective feed linear flow velocity was found to be 0.88 cm sec−1. The stripping reagent 0.1 M hydroxylamine hydrochloride (NH2OH · HCl) in 0.5 M HNO3 was used. The permeation of metal ions increased with increasing effective surface area and model for higher concentration of metal ion was able to describe the transport mechanism of U(VI).

Solvent Extraction: Principles and Practices

Abstract Recent advances in analytical chemistry are characterized by great progress toward more powerful methods of separation, equaling in significance the great forward strides made in instrument methods of determination. Problems of chemical analysis almost always involve two steps; separation of the desired constituent and measurement of the amount or concentration of this constituent. Much worthy research has been dedicated to the development of more discrimination methods of estimation, such as spectrographic, spectrophotometric, and polarographic methods, which minimize the need for separation steps preceding the measurement step. However, with the rapid growth of chemical technology, the analytical chemist is called upon to deal with mixtures of increasing complexity. Therefore to meet this challenge, powerful separation technique like solvent extraction or solvent extraction based methods are needed which enjoys a favored position among the separation techniques because of its ease, simplicity, speed, and wide scope.