Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20525#.VNhuDyzQrzE Author(s)   N.S. LABIDI , A. DJEBAILI Affiliation(s) Department of chemistry, Faculty of sciences, University of the sciences and technology of Oran (U.S.T.O.MB), BP-1505 Oran El-M’naouer (31000), Algeria . Laboratoire d'Etude des Matériaux Organiques LEMO, Faculté des Sciences-Département de chimie Université de Batna, 05000, Algerie . ABSTRACT The adsorption behavior of polyvinyl alcohol (PVA) on the CaCO 3 /solution interface under the influence of sodium oleate (SOl) interaction was investigated by the adsorbed amount, FTIR spectra, X-Ray diffraction and zeta potential. Effects of solid to liquid ratio and temperature was also examined. Observed increase of the PVA adsorption in presence of the sodium oleate resulted from a polymer-surfactant complex formation. The surfactant also influences on the structure of the adsorbed pol...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20220#.VNCDqCzQrzE Author(s)    Z. Li , X. Sun , J. Luo , J. Y. Hwang Affiliation(s) Institute of Materials Processing J. C. Crittenden Department of Environmental Engineering Michigan Technological University, Houghton, Michigan 49931 . Institute of Materials Processing J. C. Crittenden Department of Environmental Engineering Michigan Technological University, Houghton, Michigan 49931 . Institute of Materials Processing J. C. Crittenden Department of Environmental Engineering Michigan Technological University, Houghton, Michigan 49931 . Institute of Materials Processing J. C. Crittenden Department of Environmental Engineering Michigan Technological University, Houghton, Michigan 49931 . ABSTRACT Adsorption behavior of unburned carbons from fly ash has been investigated in this study. Batch tests and column test were carried out for several unbu...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53729#.VNB3cCzQrzE Author(s)    Ahmed H. A. Dabwan 1* , Nakane Yuki 2 , Nur Amni Mohd Asri 1 , Hideyuki Katsumata 2,3 , Tohru Suzuki 3,4 , Satoshi Kaneco 2,3,4   Affiliation(s) 1 Faculty of Chemical Engineering Technology, Tati University College, Terengganu, Malaysia . 2 Department of Chemistry for Materials, Graduate School of Engineering, Mie University, Mie, Japan . 3 Mie Global Environment Center for Education & Research, Mie University, Mie, Japan . 4 Research Center of Process for Environmental Load Reduction, Mie University, Mie, Japan . ABSTRACT The present work was done in order to develop and find out suitable conversion methods for coconut husk wastes into value-added products. It is well-known that coconuts husk waste is hydrophobic therefore ethanol with different doses was used as a surfactant to enhance the removal efficiency. Trea...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53266#.VLiDt8nQrzE Author(s)    Nour T. Abdel-Ghani 1 , Ghadir A. El-Chaghaby 2* , Enas Mohamed Zahran 3   Affiliation(s) 1 Chemistry Department, Faculty of science, Cairo University, Cairo, Egypt . 2 RCFF, Agricultural Research Center, Giza, Egypt . 3 Holding Company for Water and Wastewater, Greater Cairo Water Company, Cairo, Egypt . ABSTRACT The adsorption of aluminium(III) and iron(III) ions from their single and binary systems, by RHAC was investigated in a batch system. The activated carbon prepared from rice hulls was characterized by scanning electron microscopy and Fourier transformation infrared techniques. Batch adsorption experiments were performed under different operating conditions including pH (2 - 5), adsorbent dosage (0.5 - 2.0 g/l), initial ion concentration (5 - 100 mg/l), and contact time (30 - 240 min). The equilibrium time f...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53252#.VLh-BcnQrzE Author(s)    Rhoda Habor Gumus * , Ideyonbe Okpeku Affiliation(s) Department of Chemical and Petroleum Engineering, Niger Delta University, Wilberforce Island, Nigeria . ABSTRACT Snail shell waste ( Helix pomatia ) has been evaluated as raw material for the preparation of activated carbon using ZnCl 2 and CaCl 2 with the temperature ranging from 500°C to 800°C. The activated carbon prepared was characterized, showing effect of temperature on ash content, pore volume and porosity. The adsorption isotherm for methylene blue was carried out on the activated carbon in a batch study. The adsorbent exhibited excellent adsorption for methylene blue. The experimental data were used for both Langmuir and Freundlich models. The adsorption coefficients of Langmuir isotherm were found to be 0.996 and 0.957 for CaCl 2 and ZnCl 2 while 0.969 an...